X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gcc%2Fconfig%2Fd30v%2Fd30v.h;fp=gcc%2Fconfig%2Fd30v%2Fd30v.h;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=e52a1bcb7957418e456dc7f721e0dce91f7c79a7;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/config/d30v/d30v.h b/gcc/config/d30v/d30v.h deleted file mode 100644 index e52a1bcb..00000000 --- a/gcc/config/d30v/d30v.h +++ /dev/null @@ -1,4688 +0,0 @@ -/* Definitions of target machine for Mitsubishi D30V. - Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 - Free Software Foundation, Inc. - Contributed by Cygnus Solutions. - - This file is part of GNU CC. - - GNU CC is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GNU CC is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GNU CC; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef GCC_D30V_H - -/* D30V specific macros */ - -/* Align an address */ -#define D30V_ALIGN(addr,align) (((addr) + (align) - 1) & ~((align) - 1)) - - -/* Driver configuration */ - -/* Defined in svr4.h. */ -/* #define SWITCH_TAKES_ARG(CHAR) */ - -/* Defined in svr4.h. */ -/* #define WORD_SWITCH_TAKES_ARG(NAME) */ - -/* Defined in svr4.h. */ -#undef ASM_SPEC -#define ASM_SPEC "\ -%{!mno-asm-optimize: %{O*: %{!O0: -O} %{O0: %{masm-optimize: -O}}}} \ -%{v} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}" - -/* Defined in svr4.h. */ -/* #define ASM_FINAL_SPEC "" */ - -/* Defined in svr4.h. */ -#undef LINK_SPEC -#define LINK_SPEC "\ -%{h*} %{v:-V} \ -%{b} %{Wl,*:%*} \ -%{static:-dn -Bstatic} \ -%{shared:-G -dy -z text} \ -%{symbolic:-Bsymbolic -G -dy -z text} \ -%{G:-G} \ -%{YP,*} \ -%{Qy:} %{!Qn:-Qy} \ -%{mextmem: -m d30v_e} %{mextmemory: -m d30v_e} %{monchip: -m d30v_o}" - -/* Defined in svr4.h. */ -#undef LIB_SPEC -#define LIB_SPEC "--start-group -lsim -lc --end-group" - -/* Defined in svr4.h. */ -#undef STARTFILE_SPEC -#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s" - -/* Defined in svr4.h. */ -#undef ENDFILE_SPEC -#define ENDFILE_SPEC "crtend%O%s" - -/* Defined in svr4.h for host compilers. */ -/* #define MD_EXEC_PREFIX "" */ - -/* Defined in svr4.h for host compilers. */ -/* #define MD_STARTFILE_PREFIX "" */ - - -/* Run-time target specifications */ - -#define CPP_PREDEFINES "-D__D30V__ -Amachine=d30v" - -/* This declaration should be present. */ -extern int target_flags; - -#define MASK_NO_COND_MOVE 0x00000001 /* disable conditional moves */ - -#define MASK_DEBUG_ARG 0x10000000 /* debug argument handling */ -#define MASK_DEBUG_STACK 0x20000000 /* debug stack allocations */ -#define MASK_DEBUG_ADDR 0x40000000 /* debug GO_IF_LEGITIMATE_ADDRESS */ - -#define TARGET_NO_COND_MOVE (target_flags & MASK_NO_COND_MOVE) -#define TARGET_DEBUG_ARG (target_flags & MASK_DEBUG_ARG) -#define TARGET_DEBUG_STACK (target_flags & MASK_DEBUG_STACK) -#define TARGET_DEBUG_ADDR (target_flags & MASK_DEBUG_ADDR) - -#define TARGET_COND_MOVE (! TARGET_NO_COND_MOVE) - -/* Default switches used. */ -#ifndef TARGET_DEFAULT -#define TARGET_DEFAULT 0 -#endif - -#define TARGET_SWITCHES \ -{ \ - { "cond-move", -MASK_NO_COND_MOVE, \ - N_("Enable use of conditional move instructions") }, \ - \ - { "no-cond-move", MASK_NO_COND_MOVE, \ - N_("Disable use of conditional move instructions") }, \ - \ - { "debug-arg", MASK_DEBUG_ARG, \ - N_("Debug argument support in compiler") }, \ - \ - { "debug-stack", MASK_DEBUG_STACK, \ - N_("Debug stack support in compiler") }, \ - \ - { "debug-addr", MASK_DEBUG_ADDR, \ - N_("Debug memory address support in compiler") }, \ - \ - { "asm-optimize", 0, \ - N_("Make adjacent short instructions parallel if possible") }, \ - \ - { "no-asm-optimize", 0, \ - N_("Do not make adjacent short instructions parallel") }, \ - \ - { "extmem", 0, \ - N_("Link programs/data to be in external memory by default") }, \ - \ - { "extmemory", 0, \ - N_("Link programs/data to be in external memory by default") }, \ - \ - { "onchip", 0, \ - N_("Link programs/data to be in onchip memory by default") }, \ - \ - { "", TARGET_DEFAULT, "" }, \ -} - -#define TARGET_OPTIONS \ -{ \ - {"branch-cost=", &d30v_branch_cost_string, \ - N_("Change the branch costs within the compiler") }, \ - \ - {"cond-exec=", &d30v_cond_exec_string, \ - N_("Change the threshold for conversion to conditional execution") }, \ -} - -#define TARGET_VERSION fprintf (stderr, " d30v") - -#define OVERRIDE_OPTIONS override_options () - -#define CAN_DEBUG_WITHOUT_FP - - -/* Storage Layout */ - -#define BITS_BIG_ENDIAN 1 - -#define BYTES_BIG_ENDIAN 1 - -#define WORDS_BIG_ENDIAN 1 - -#define BITS_PER_UNIT 8 - -#define BITS_PER_WORD 32 - -#define UNITS_PER_WORD 4 - -#define POINTER_SIZE 32 - -#define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ -do { \ - if (GET_MODE_CLASS (MODE) == MODE_INT \ - && GET_MODE_SIZE (MODE) < 4) \ - (MODE) = SImode; \ -} while (0) - -#define PARM_BOUNDARY 32 - -#define STACK_BOUNDARY 64 - -#define FUNCTION_BOUNDARY 64 - -#define BIGGEST_ALIGNMENT 64 - -/* Defined in svr4.h. */ -/* #define MAX_OFILE_ALIGNMENT */ - -#define DATA_ALIGNMENT(TYPE, ALIGN) \ - (TREE_CODE (TYPE) == ARRAY_TYPE \ - && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ - && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) - -#define CONSTANT_ALIGNMENT(EXP, ALIGN) \ - (TREE_CODE (EXP) == STRING_CST \ - && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) - -#define STRICT_ALIGNMENT 1 - -/* Defined in svr4.h. */ - -#define PCC_BITFIELD_TYPE_MATTERS 1 - -#define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT - - -/* Layout of Source Language Data Types */ - -#define INT_TYPE_SIZE 32 - -#define SHORT_TYPE_SIZE 16 - -#define LONG_TYPE_SIZE 32 - -#define LONG_LONG_TYPE_SIZE 64 - -#define CHAR_TYPE_SIZE 8 - -#define FLOAT_TYPE_SIZE 32 - -#define DOUBLE_TYPE_SIZE 64 - -#define LONG_DOUBLE_TYPE_SIZE 64 - -#define DEFAULT_SIGNED_CHAR 1 - -/* Defined in svr4.h. */ -/* #define SIZE_TYPE */ - -/* Defined in svr4.h. */ -/* #define PTRDIFF_TYPE */ - -/* Defined in svr4.h. */ -/* #define WCHAR_TYPE */ - -/* Defined in svr4.h. */ -/* #define WCHAR_TYPE_SIZE */ - - -/* D30V register layout. */ - -/* Return true if a value is inside a range */ -#define IN_RANGE_P(VALUE, LOW, HIGH) \ - (((unsigned)((VALUE) - (LOW))) <= ((unsigned)((HIGH) - (LOW)))) - -/* General purpose registers. */ -#define GPR_FIRST 0 /* First gpr */ -#define GPR_LAST (GPR_FIRST + 63) /* Last gpr */ -#define GPR_R0 GPR_FIRST /* R0, constant 0 */ -#define GPR_ARG_FIRST (GPR_FIRST + 2) /* R2, first argument reg */ -#define GPR_ARG_LAST (GPR_FIRST + 17) /* R17, last argument reg */ -#define GPR_RET_VALUE GPR_ARG_FIRST /* R2, function return reg */ -#define GPR_ATMP_FIRST (GPR_FIRST + 20) /* R20, tmp to save accs */ -#define GPR_ATMP_LAST (GPR_FIRST + 21) /* R21, tmp to save accs */ -#define GPR_STACK_TMP (GPR_FIRST + 22) /* R22, tmp for saving stack */ -#define GPR_RES_FIRST (GPR_FIRST + 32) /* R32, first reserved reg */ -#define GPR_RES_LAST (GPR_FIRST + 35) /* R35, last reserved reg */ -#define GPR_FP (GPR_FIRST + 61) /* Frame pointer */ -#define GPR_LINK (GPR_FIRST + 62) /* Return address register */ -#define GPR_SP (GPR_FIRST + 63) /* Stack pointer */ - -/* Argument register that is eliminated in favor of the frame and/or stack - pointer. Also add register to point to where the return address is - stored. */ -#define SPECIAL_REG_FIRST (GPR_LAST + 1) -#define SPECIAL_REG_LAST (SPECIAL_REG_FIRST) -#define ARG_POINTER_REGNUM (SPECIAL_REG_FIRST + 0) -#define SPECIAL_REG_P(R) ((R) == SPECIAL_REG_FIRST) - -#define GPR_OR_SPECIAL_REG_P(R) IN_RANGE_P (R, GPR_FIRST, SPECIAL_REG_LAST) -#define GPR_P(R) IN_RANGE_P (R, GPR_FIRST, GPR_LAST) -#define GPR_OR_PSEUDO_P(R) (GPR_OR_SPECIAL_REG_P (R) \ - || (R) >= FIRST_PSEUDO_REGISTER) - -/* Flag bits. */ -#define FLAG_FIRST (SPECIAL_REG_LAST + 1) /* First flag */ -#define FLAG_LAST (FLAG_FIRST + 7) /* Last flag */ -#define FLAG_F0 (FLAG_FIRST) /* F0, used in prediction */ -#define FLAG_F1 (FLAG_FIRST + 1) /* F1, used in prediction */ -#define FLAG_F2 (FLAG_FIRST + 2) /* F2, general flag */ -#define FLAG_F3 (FLAG_FIRST + 3) /* F3, general flag */ -#define FLAG_SAT (FLAG_FIRST + 4) /* F4, saturation flag */ -#define FLAG_OVERFLOW (FLAG_FIRST + 5) /* F5, overflow flag */ -#define FLAG_ACC_OVER (FLAG_FIRST + 6) /* F6, accumulated overflow */ -#define FLAG_CARRY (FLAG_FIRST + 7) /* F7, carry/borrow flag */ -#define FLAG_BORROW FLAG_CARRY - -#define FLAG_P(R) IN_RANGE_P (R, FLAG_FIRST, FLAG_LAST) -#define FLAG_OR_PSEUDO_P(R) (FLAG_P (R) || (R) >= FIRST_PSEUDO_REGISTER) - -#define BR_FLAG_P(R) IN_RANGE_P (R, FLAG_F0, FLAG_F1) -#define BR_FLAG_OR_PSEUDO_P(R) (BR_FLAG_P (R) || (R) >= FIRST_PSEUDO_REGISTER) - -/* Accumulators */ -#define ACCUM_FIRST (FLAG_LAST + 1) /* First accumulator */ -#define ACCUM_A0 ACCUM_FIRST /* Register A0 */ -#define ACCUM_A1 (ACCUM_FIRST + 1) /* Register A1 */ -#define ACCUM_LAST (ACCUM_FIRST + 1) /* Last accumulator */ - -#define ACCUM_P(R) IN_RANGE_P (R, ACCUM_FIRST, ACCUM_LAST) -#define ACCUM_OR_PSEUDO_P(R) (ACCUM_P (R) || (R) >= FIRST_PSEUDO_REGISTER) - -/* Special registers. Note, we only define the registers that can actually - be used. */ -#define CR_FIRST (ACCUM_LAST + 1) /* First CR */ -#define CR_LAST (CR_FIRST + 14) /* Last CR */ -#define CR_PSW (CR_FIRST + 0) /* CR0, Program status word */ -#define CR_BPSW (CR_FIRST + 1) /* CR1, Backup PSW */ -#define CR_PC (CR_FIRST + 2) /* CR2, Program counter */ -#define CR_BPC (CR_FIRST + 3) /* CR3, Backup PC */ -#define CR_DPSW (CR_FIRST + 4) /* CR4, Debug PSW */ -#define CR_DPC (CR_FIRST + 5) /* CR5, Debug PC */ -#define CR_RPT_C (CR_FIRST + 6) /* CR7, loop count register */ -#define CR_RPT_S (CR_FIRST + 7) /* CR8, loop start address */ -#define CR_RPT_E (CR_FIRST + 8) /* CR9, loop end address */ -#define CR_MOD_S (CR_FIRST + 9) /* CR10, modulo address start*/ -#define CR_MOD_E (CR_FIRST + 10) /* CR11, modulo address */ -#define CR_IBA (CR_FIRST + 11) /* CR14, Interrupt break addr */ -#define CR_EIT_VB (CR_FIRST + 12) /* CR15, EIT vector address */ -#define CR_INT_S (CR_FIRST + 13) /* CR16, Interrupt status */ -#define CR_INT_M (CR_FIRST + 14) /* CR17, Interrupt mask */ - -#define CR_P(R) IN_RANGE_P (R, CR_FIRST, CR_LAST) -#define CR_OR_PSEUDO_P(R) (CR_P (R) || (R) >= FIRST_PSEUDO_REGISTER) - - -/* Register Basics */ - -/* Number of hardware registers known to the compiler. They receive numbers 0 - through `FIRST_PSEUDO_REGISTER-1'; thus, the first pseudo register's number - really is assigned the number `FIRST_PSEUDO_REGISTER'. */ -#define FIRST_PSEUDO_REGISTER (CR_LAST + 1) - -/* An initializer that says which registers are used for fixed purposes all - throughout the compiled code and are therefore not available for general - allocation. These would include the stack pointer, the frame pointer - (except on machines where that can be used as a general register when no - frame pointer is needed), the program counter on machines where that is - considered one of the addressable registers, and any other numbered register - with a standard use. - - This information is expressed as a sequence of numbers, separated by commas - and surrounded by braces. The Nth number is 1 if register N is fixed, 0 - otherwise. - - The table initialized from this macro, and the table initialized by the - following one, may be overridden at run time either automatically, by the - actions of the macro `CONDITIONAL_REGISTER_USAGE', or by the user with the - command options `-ffixed-REG', `-fcall-used-REG' and `-fcall-saved-REG'. */ -#define FIXED_REGISTERS \ -{ \ - 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* R0 - R15 */ \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, /* R16 - R31 */ \ - 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* R32 - R47 */ \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, /* R48 - R63 */ \ - 1, /* ARG ptr */ \ - 0, 0, 0, 0, 1, 1, 1, 1, /* F0 - F7 */ \ - 0, 0, /* A0 - A1 */ \ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* CRs */ \ -} - -/* Like `FIXED_REGISTERS' but has 1 for each register that is clobbered (in - general) by function calls as well as for fixed registers. This macro - therefore identifies the registers that are not available for general - allocation of values that must live across function calls. - - If a register has 0 in `CALL_USED_REGISTERS', the compiler automatically - saves it on function entry and restores it on function exit, if the register - is used within the function. */ -#define CALL_USED_REGISTERS \ -{ \ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* R0 - R15 */ \ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* R16 - R31 */ \ - 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* R32 - R47 */ \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, /* R48 - R63 */ \ - 1, /* ARG ptr */ \ - 1, 1, 1, 1, 1, 1, 1, 1, /* F0 - F7 */ \ - 1, 0, /* A0 - A1 */ \ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* CRs */ \ -} - -/* Zero or more C statements that may conditionally modify two variables - `fixed_regs' and `call_used_regs' (both of type `char []') after they have - been initialized from the two preceding macros. - - This is necessary in case the fixed or call-clobbered registers depend on - target flags. - - You need not define this macro if it has no work to do. - - If the usage of an entire class of registers depends on the target flags, - you may indicate this to GCC by using this macro to modify `fixed_regs' and - `call_used_regs' to 1 for each of the registers in the classes which should - not be used by GCC. Also define the macro `REG_CLASS_FROM_LETTER' to return - `NO_REGS' if it is called with a letter for a class that shouldn't be used. - - (However, if this class is not included in `GENERAL_REGS' and all of the - insn patterns whose constraints permit this class are controlled by target - switches, then GCC will automatically avoid using these registers when the - target switches are opposed to them.) */ -/* #define CONDITIONAL_REGISTER_USAGE */ - -/* If this macro is defined and has a nonzero value, it means that `setjmp' and - related functions fail to save the registers, or that `longjmp' fails to - restore them. To compensate, the compiler avoids putting variables in - registers in functions that use `setjmp'. */ -/* #define NON_SAVING_SETJMP */ - -/* Define this macro if the target machine has register windows. This C - expression returns the register number as seen by the called function - corresponding to the register number OUT as seen by the calling function. - Return OUT if register number OUT is not an outbound register. */ -/* #define INCOMING_REGNO(OUT) */ - -/* Define this macro if the target machine has register windows. This C - expression returns the register number as seen by the calling function - corresponding to the register number IN as seen by the called function. - Return IN if register number IN is not an inbound register. */ -/* #define OUTGOING_REGNO(IN) */ - - -/* Order of allocation of registers */ - -/* If defined, an initializer for a vector of integers, containing the numbers - of hard registers in the order in which GNU CC should prefer to use them - (from most preferred to least). - - If this macro is not defined, registers are used lowest numbered first (all - else being equal). - - One use of this macro is on machines where the highest numbered registers - must always be saved and the save-multiple-registers instruction supports - only sequences of consecutive registers. On such machines, define - `REG_ALLOC_ORDER' to be an initializer that lists the highest numbered - allocatable register first. */ - -#define REG_ALLOC_ORDER \ -{ \ - /* volatile registers */ \ - GPR_FIRST + 2, GPR_FIRST + 3, GPR_FIRST + 4, GPR_FIRST + 5, \ - GPR_FIRST + 6, GPR_FIRST + 7, GPR_FIRST + 8, GPR_FIRST + 9, \ - GPR_FIRST + 10, GPR_FIRST + 11, GPR_FIRST + 12, GPR_FIRST + 13, \ - GPR_FIRST + 14, GPR_FIRST + 15, GPR_FIRST + 16, GPR_FIRST + 17, \ - GPR_FIRST + 18, GPR_FIRST + 19, GPR_FIRST + 20, GPR_FIRST + 21, \ - GPR_FIRST + 22, GPR_FIRST + 23, GPR_FIRST + 24, GPR_FIRST + 25, \ - GPR_FIRST + 1, \ - \ - /* saved registers */ \ - GPR_FIRST + 34, GPR_FIRST + 35, GPR_FIRST + 36, GPR_FIRST + 37, \ - GPR_FIRST + 38, GPR_FIRST + 39, GPR_FIRST + 40, GPR_FIRST + 41, \ - GPR_FIRST + 42, GPR_FIRST + 43, GPR_FIRST + 44, GPR_FIRST + 45, \ - GPR_FIRST + 46, GPR_FIRST + 47, GPR_FIRST + 48, GPR_FIRST + 49, \ - GPR_FIRST + 50, GPR_FIRST + 51, GPR_FIRST + 52, GPR_FIRST + 53, \ - GPR_FIRST + 54, GPR_FIRST + 55, GPR_FIRST + 56, GPR_FIRST + 57, \ - GPR_FIRST + 58, GPR_FIRST + 59, GPR_FIRST + 60, GPR_FIRST + 61, \ - GPR_FIRST + 62, \ - \ - /* flags */ \ - FLAG_F2, FLAG_F3, FLAG_F0, FLAG_F1, \ - FLAG_SAT, FLAG_OVERFLOW, FLAG_ACC_OVER, FLAG_CARRY, \ - \ - /* accumultors */ \ - ACCUM_FIRST + 0, ACCUM_FIRST + 1, \ - \ - /* fixed registers */ \ - GPR_FIRST + 0, GPR_FIRST + 26, GPR_FIRST + 27, GPR_FIRST + 28, \ - GPR_FIRST + 29, GPR_FIRST + 30, GPR_FIRST + 31, GPR_FIRST + 32, \ - GPR_FIRST + 33, GPR_FIRST + 63, \ - CR_PSW, CR_BPSW, CR_PC, CR_BPC, \ - CR_DPSW, CR_DPC, CR_RPT_C, CR_RPT_S, \ - CR_RPT_E, CR_MOD_S, CR_MOD_E, CR_IBA, \ - CR_EIT_VB, CR_INT_S, CR_INT_M, \ - ARG_POINTER_REGNUM, \ -} - -/* A C statement (sans semicolon) to choose the order in which to allocate hard - registers for pseudo-registers local to a basic block. - - Store the desired register order in the array `reg_alloc_order'. Element 0 - should be the register to allocate first; element 1, the next register; and - so on. - - The macro body should not assume anything about the contents of - `reg_alloc_order' before execution of the macro. - - On most machines, it is not necessary to define this macro. */ -/* #define ORDER_REGS_FOR_LOCAL_ALLOC */ - - -/* How Values Fit in Registers */ - -/* A C expression for the number of consecutive hard registers, starting at - register number REGNO, required to hold a value of mode MODE. - - On a machine where all registers are exactly one word, a suitable definition - of this macro is - - #define HARD_REGNO_NREGS(REGNO, MODE) \ - ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \ - / UNITS_PER_WORD)) */ - -#define HARD_REGNO_NREGS(REGNO, MODE) \ -(ACCUM_P (REGNO) ? ((GET_MODE_SIZE (MODE) + 2*UNITS_PER_WORD - 1) \ - / (2*UNITS_PER_WORD)) \ - : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \ - / UNITS_PER_WORD)) - -/* A C expression that is nonzero if it is permissible to store a value of mode - MODE in hard register number REGNO (or in several registers starting with - that one). For a machine where all registers are equivalent, a suitable - definition is - - #define HARD_REGNO_MODE_OK(REGNO, MODE) 1 - - It is not necessary for this macro to check for the numbers of fixed - registers, because the allocation mechanism considers them to be always - occupied. - - On some machines, double-precision values must be kept in even/odd register - pairs. The way to implement that is to define this macro to reject odd - register numbers for such modes. - - The minimum requirement for a mode to be OK in a register is that the - `movMODE' instruction pattern support moves between the register and any - other hard register for which the mode is OK; and that moving a value into - the register and back out not alter it. - - Since the same instruction used to move `SImode' will work for all narrower - integer modes, it is not necessary on any machine for `HARD_REGNO_MODE_OK' - to distinguish between these modes, provided you define patterns `movhi', - etc., to take advantage of this. This is useful because of the interaction - between `HARD_REGNO_MODE_OK' and `MODES_TIEABLE_P'; it is very desirable for - all integer modes to be tieable. - - Many machines have special registers for floating point arithmetic. Often - people assume that floating point machine modes are allowed only in floating - point registers. This is not true. Any registers that can hold integers - can safely *hold* a floating point machine mode, whether or not floating - arithmetic can be done on it in those registers. Integer move instructions - can be used to move the values. - - On some machines, though, the converse is true: fixed-point machine modes - may not go in floating registers. This is true if the floating registers - normalize any value stored in them, because storing a non-floating value - there would garble it. In this case, `HARD_REGNO_MODE_OK' should reject - fixed-point machine modes in floating registers. But if the floating - registers do not automatically normalize, if you can store any bit pattern - in one and retrieve it unchanged without a trap, then any machine mode may - go in a floating register, so you can define this macro to say so. - - The primary significance of special floating registers is rather that they - are the registers acceptable in floating point arithmetic instructions. - However, this is of no concern to `HARD_REGNO_MODE_OK'. You handle it by - writing the proper constraints for those instructions. - - On some machines, the floating registers are especially slow to access, so - that it is better to store a value in a stack frame than in such a register - if floating point arithmetic is not being done. As long as the floating - registers are not in class `GENERAL_REGS', they will not be used unless some - pattern's constraint asks for one. */ - -extern unsigned char hard_regno_mode_ok[][FIRST_PSEUDO_REGISTER]; -#define HARD_REGNO_MODE_OK(REGNO, MODE) hard_regno_mode_ok[ (int)MODE ][ REGNO ] - -/* A C expression that is nonzero if it is desirable to choose register - allocation so as to avoid move instructions between a value of mode MODE1 - and a value of mode MODE2. - - If `HARD_REGNO_MODE_OK (R, MODE1)' and `HARD_REGNO_MODE_OK (R, MODE2)' are - ever different for any R, then `MODES_TIEABLE_P (MODE1, MODE2)' must be - zero. */ - -extern unsigned char modes_tieable_p[]; -#define MODES_TIEABLE_P(MODE1, MODE2) \ - modes_tieable_p[ (((int)(MODE1)) * (NUM_MACHINE_MODES)) + (int)(MODE2) ] - -/* Define this macro if the compiler should avoid copies to/from CCmode - registers. You should only define this macro if support fo copying to/from - CCmode is incomplete. */ - -/* On the D30V, copying to/from CCmode is complete, but since there are only - two CC registers usable for conditional tests, this helps gcse not compound - the reload problem. */ -#define AVOID_CCMODE_COPIES - - -/* Handling Leaf Functions */ - -/* A C initializer for a vector, indexed by hard register number, which - contains 1 for a register that is allowable in a candidate for leaf function - treatment. - - If leaf function treatment involves renumbering the registers, then the - registers marked here should be the ones before renumbering--those that GNU - CC would ordinarily allocate. The registers which will actually be used in - the assembler code, after renumbering, should not be marked with 1 in this - vector. - - Define this macro only if the target machine offers a way to optimize the - treatment of leaf functions. */ -/* #define LEAF_REGISTERS */ - -/* A C expression whose value is the register number to which REGNO should be - renumbered, when a function is treated as a leaf function. - - If REGNO is a register number which should not appear in a leaf function - before renumbering, then the expression should yield -1, which will cause - the compiler to abort. - - Define this macro only if the target machine offers a way to optimize the - treatment of leaf functions, and registers need to be renumbered to do this. */ -/* #define LEAF_REG_REMAP(REGNO) */ - - -/* Registers That Form a Stack. */ - -/* Define this if the machine has any stack-like registers. */ -/* #define STACK_REGS */ - -/* The number of the first stack-like register. This one is the top - of the stack. */ -/* #define FIRST_STACK_REG */ - -/* The number of the last stack-like register. This one is the - bottom of the stack. */ -/* #define LAST_STACK_REG */ - - -/* Register Classes */ - -/* An enumeral type that must be defined with all the register class names as - enumeral values. `NO_REGS' must be first. `ALL_REGS' must be the last - register class, followed by one more enumeral value, `LIM_REG_CLASSES', - which is not a register class but rather tells how many classes there are. - - Each register class has a number, which is the value of casting the class - name to type `int'. The number serves as an index in many of the tables - described below. */ -enum reg_class -{ - NO_REGS, - REPEAT_REGS, - CR_REGS, - ACCUM_REGS, - OTHER_FLAG_REGS, - F0_REGS, - F1_REGS, - BR_FLAG_REGS, - FLAG_REGS, - EVEN_REGS, - GPR_REGS, - ALL_REGS, - LIM_REG_CLASSES -}; - -#define GENERAL_REGS GPR_REGS - -/* The number of distinct register classes, defined as follows: - - #define N_REG_CLASSES (int) LIM_REG_CLASSES */ -#define N_REG_CLASSES ((int) LIM_REG_CLASSES) - -/* An initializer containing the names of the register classes as C string - constants. These names are used in writing some of the debugging dumps. */ -#define REG_CLASS_NAMES \ -{ \ - "NO_REGS", \ - "REPEAT_REGS", \ - "CR_REGS", \ - "ACCUM_REGS", \ - "OTHER_FLAG_REGS", \ - "F0_REGS", \ - "F1_REGS", \ - "BR_FLAG_REGS", \ - "FLAG_REGS", \ - "EVEN_REGS", \ - "GPR_REGS", \ - "ALL_REGS", \ -} - -/* Create mask bits for 3rd word of REG_CLASS_CONTENTS */ -#define MASK_WORD3(REG) ((long)1 << ((REG) - 64)) - -#define NO_MASK 0 -#define REPEAT_MASK MASK_WORD3 (CR_RPT_C) -#define CR_MASK (MASK_WORD3 (CR_PSW) | MASK_WORD3 (CR_BPSW) \ - | MASK_WORD3 (CR_PC) | MASK_WORD3 (CR_BPC) \ - | MASK_WORD3 (CR_DPSW) | MASK_WORD3 (CR_DPC) \ - | MASK_WORD3 (CR_RPT_C) | MASK_WORD3 (CR_RPT_S) \ - | MASK_WORD3 (CR_RPT_E) | MASK_WORD3 (CR_MOD_S) \ - | MASK_WORD3 (CR_MOD_E) | MASK_WORD3 (CR_IBA) \ - | MASK_WORD3 (CR_EIT_VB) | MASK_WORD3 (CR_INT_S) \ - | MASK_WORD3 (CR_INT_M)) - -#define ACCUM_MASK (MASK_WORD3 (ACCUM_A0) | MASK_WORD3 (ACCUM_A1)) -#define OTHER_FLAG_MASK (MASK_WORD3 (FLAG_F2) | MASK_WORD3 (FLAG_F3) \ - | MASK_WORD3 (FLAG_SAT) | MASK_WORD3 (FLAG_OVERFLOW) \ - | MASK_WORD3 (FLAG_ACC_OVER) | MASK_WORD3 (FLAG_CARRY)) - -#define F0_MASK MASK_WORD3 (FLAG_F0) -#define F1_MASK MASK_WORD3 (FLAG_F1) -#define BR_FLAG_MASK (F0_MASK | F1_MASK) -#define FLAG_MASK (BR_FLAG_MASK | OTHER_FLAG_MASK) -#define SPECIAL_MASK MASK_WORD3 (ARG_POINTER_REGNUM) - -#define ALL_MASK (CR_MASK | ACCUM_MASK | FLAG_MASK | SPECIAL_MASK) - -/* An initializer containing the contents of the register classes, as integers - which are bit masks. The Nth integer specifies the contents of class N. - The way the integer MASK is interpreted is that register R is in the class - if `MASK & (1 << R)' is 1. - - When the machine has more than 32 registers, an integer does not suffice. - Then the integers are replaced by sub-initializers, braced groupings - containing several integers. Each sub-initializer must be suitable as an - initializer for the type `HARD_REG_SET' which is defined in - `hard-reg-set.h'. */ -#define REG_CLASS_CONTENTS \ -{ \ - { 0x00000000, 0x00000000, NO_MASK }, /* NO_REGS */ \ - { 0x00000000, 0x00000000, REPEAT_MASK }, /* REPEAT_REGS */ \ - { 0x00000000, 0x00000000, CR_MASK }, /* CR_REGS */ \ - { 0x00000000, 0x00000000, ACCUM_MASK }, /* ACCUM_REGS */ \ - { 0x00000000, 0x00000000, OTHER_FLAG_MASK }, /* OTHER_FLAG_REGS */ \ - { 0x00000000, 0x00000000, F0_MASK }, /* F0_REGS */ \ - { 0x00000000, 0x00000000, F1_MASK }, /* F1_REGS */ \ - { 0x00000000, 0x00000000, BR_FLAG_MASK }, /* BR_FLAG_REGS */ \ - { 0x00000000, 0x00000000, FLAG_MASK }, /* FLAG_REGS */ \ - { 0xfffffffc, 0x3fffffff, NO_MASK }, /* EVEN_REGS */ \ - { 0xffffffff, 0xffffffff, SPECIAL_MASK }, /* GPR_REGS */ \ - { 0xffffffff, 0xffffffff, ALL_MASK }, /* ALL_REGS */ \ -} - -/* A C expression whose value is a register class containing hard register - REGNO. In general there is more than one such class; choose a class which - is "minimal", meaning that no smaller class also contains the register. */ - -extern enum reg_class regno_reg_class[FIRST_PSEUDO_REGISTER]; -#define REGNO_REG_CLASS(REGNO) regno_reg_class[ (REGNO) ] - -/* A macro whose definition is the name of the class to which a valid base - register must belong. A base register is one used in an address which is - the register value plus a displacement. */ -#define BASE_REG_CLASS GPR_REGS - -/* A macro whose definition is the name of the class to which a valid index - register must belong. An index register is one used in an address where its - value is either multiplied by a scale factor or added to another register - (as well as added to a displacement). */ -#define INDEX_REG_CLASS GPR_REGS - -/* A C expression which defines the machine-dependent operand constraint - letters for register classes. If CHAR is such a letter, the value should be - the register class corresponding to it. Otherwise, the value should be - `NO_REGS'. The register letter `r', corresponding to class `GENERAL_REGS', - will not be passed to this macro; you do not need to handle it. - - The following letters are unavailable, due to being used as - constraints: - '0'..'9' - '<', '>' - 'E', 'F', 'G', 'H' - 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P' - 'Q', 'R', 'S', 'T', 'U' - 'V', 'X' - 'g', 'i', 'm', 'n', 'o', 'p', 'r', 's' */ - -extern enum reg_class reg_class_from_letter[256]; -#define REG_CLASS_FROM_LETTER(CHAR) reg_class_from_letter[(unsigned char)(CHAR)] - -/* A C expression which is nonzero if register number NUM is suitable for use - as a base register in operand addresses. It may be either a suitable hard - register or a pseudo register that has been allocated such a hard register. */ - -#define REGNO_OK_FOR_BASE_P(NUM) \ -((NUM) < FIRST_PSEUDO_REGISTER \ - ? GPR_P (NUM) \ - : (reg_renumber[NUM] >= 0 && GPR_P (reg_renumber[NUM]))) - - -/* A C expression which is nonzero if register number NUM is suitable for use - as an index register in operand addresses. It may be either a suitable hard - register or a pseudo register that has been allocated such a hard register. - - The difference between an index register and a base register is that the - index register may be scaled. If an address involves the sum of two - registers, neither one of them scaled, then either one may be labeled the - "base" and the other the "index"; but whichever labeling is used must fit - the machine's constraints of which registers may serve in each capacity. - The compiler will try both labelings, looking for one that is valid, and - will reload one or both registers only if neither labeling works. */ - -#define REGNO_OK_FOR_INDEX_P(NUM) \ -((NUM) < FIRST_PSEUDO_REGISTER \ - ? GPR_P (NUM) \ - : (reg_renumber[NUM] >= 0 && GPR_P (reg_renumber[NUM]))) - -/* A C expression that places additional restrictions on the register class to - use when it is necessary to copy value X into a register in class CLASS. - The value is a register class; perhaps CLASS, or perhaps another, smaller - class. On many machines, the following definition is safe: - - #define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS - - Sometimes returning a more restrictive class makes better code. For - example, on the 68000, when X is an integer constant that is in range for a - `moveq' instruction, the value of this macro is always `DATA_REGS' as long - as CLASS includes the data registers. Requiring a data register guarantees - that a `moveq' will be used. - - If X is a `const_double', by returning `NO_REGS' you can force X into a - memory constant. This is useful on certain machines where immediate - floating values cannot be loaded into certain kinds of registers. */ -#define PREFERRED_RELOAD_CLASS(X, CLASS) CLASS - -/* Like `PREFERRED_RELOAD_CLASS', but for output reloads instead of input - reloads. If you don't define this macro, the default is to use CLASS, - unchanged. */ -/* #define PREFERRED_OUTPUT_RELOAD_CLASS(X, CLASS) */ - -/* A C expression that places additional restrictions on the register class to - use when it is necessary to be able to hold a value of mode MODE in a reload - register for which class CLASS would ordinarily be used. - - Unlike `PREFERRED_RELOAD_CLASS', this macro should be used when there are - certain modes that simply can't go in certain reload classes. - - The value is a register class; perhaps CLASS, or perhaps another, smaller - class. - - Don't define this macro unless the target machine has limitations which - require the macro to do something nontrivial. */ -/* #define LIMIT_RELOAD_CLASS(MODE, CLASS) */ - -/* Many machines have some registers that cannot be copied directly to or from - memory or even from other types of registers. An example is the `MQ' - register, which on most machines, can only be copied to or from general - registers, but not memory. Some machines allow copying all registers to and - from memory, but require a scratch register for stores to some memory - locations (e.g., those with symbolic address on the RT, and those with - certain symbolic address on the Sparc when compiling PIC). In some cases, - both an intermediate and a scratch register are required. - - You should define these macros to indicate to the reload phase that it may - need to allocate at least one register for a reload in addition to the - register to contain the data. Specifically, if copying X to a register - CLASS in MODE requires an intermediate register, you should define - `SECONDARY_INPUT_RELOAD_CLASS' to return the largest register class all of - whose registers can be used as intermediate registers or scratch registers. - - If copying a register CLASS in MODE to X requires an intermediate or scratch - register, `SECONDARY_OUTPUT_RELOAD_CLASS' should be defined to return the - largest register class required. If the requirements for input and output - reloads are the same, the macro `SECONDARY_RELOAD_CLASS' should be used - instead of defining both macros identically. - - The values returned by these macros are often `GENERAL_REGS'. Return - `NO_REGS' if no spare register is needed; i.e., if X can be directly copied - to or from a register of CLASS in MODE without requiring a scratch register. - Do not define this macro if it would always return `NO_REGS'. - - If a scratch register is required (either with or without an intermediate - register), you should define patterns for `reload_inM' or `reload_outM', as - required (*note Standard Names::.. These patterns, which will normally be - implemented with a `define_expand', should be similar to the `movM' - patterns, except that operand 2 is the scratch register. - - Define constraints for the reload register and scratch register that contain - a single register class. If the original reload register (whose class is - CLASS) can meet the constraint given in the pattern, the value returned by - these macros is used for the class of the scratch register. Otherwise, two - additional reload registers are required. Their classes are obtained from - the constraints in the insn pattern. - - X might be a pseudo-register or a `subreg' of a pseudo-register, which could - either be in a hard register or in memory. Use `true_regnum' to find out; - it will return -1 if the pseudo is in memory and the hard register number if - it is in a register. - - These macros should not be used in the case where a particular class of - registers can only be copied to memory and not to another class of - registers. In that case, secondary reload registers are not needed and - would not be helpful. Instead, a stack location must be used to perform the - copy and the `movM' pattern should use memory as an intermediate storage. - This case often occurs between floating-point and general registers. */ - -#define SECONDARY_RELOAD_CLASS(CLASS, MODE, X) \ -((CLASS) == GPR_REGS ? NO_REGS \ - : (CLASS) == EVEN_REGS ? NO_REGS \ - : (CLASS) == ACCUM_REGS ? EVEN_REGS \ - : GPR_REGS) - -/* #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, X) */ -/* #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, X) */ - -/* Certain machines have the property that some registers cannot be copied to - some other registers without using memory. Define this macro on those - machines to be a C expression that is non-zero if objects of mode M in - registers of CLASS1 can only be copied to registers of class CLASS2 by - storing a register of CLASS1 into memory and loading that memory location - into a register of CLASS2. - - Do not define this macro if its value would always be zero. */ -/* #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, M) */ - -/* Normally when `SECONDARY_MEMORY_NEEDED' is defined, the compiler allocates a - stack slot for a memory location needed for register copies. If this macro - is defined, the compiler instead uses the memory location defined by this - macro. - - Do not define this macro if you do not define - `SECONDARY_MEMORY_NEEDED'. */ -/* #define SECONDARY_MEMORY_NEEDED_RTX(MODE) */ - -/* When the compiler needs a secondary memory location to copy between two - registers of mode MODE, it normally allocates sufficient memory to hold a - quantity of `BITS_PER_WORD' bits and performs the store and load operations - in a mode that many bits wide and whose class is the same as that of MODE. - - This is right thing to do on most machines because it ensures that all bits - of the register are copied and prevents accesses to the registers in a - narrower mode, which some machines prohibit for floating-point registers. - - However, this default behavior is not correct on some machines, such as the - DEC Alpha, that store short integers in floating-point registers differently - than in integer registers. On those machines, the default widening will not - work correctly and you must define this macro to suppress that widening in - some cases. See the file `alpha.h' for details. - - Do not define this macro if you do not define `SECONDARY_MEMORY_NEEDED' or - if widening MODE to a mode that is `BITS_PER_WORD' bits wide is correct for - your machine. */ -/* #define SECONDARY_MEMORY_NEEDED_MODE(MODE) */ - -/* Normally the compiler avoids choosing registers that have been explicitly - mentioned in the rtl as spill registers (these registers are normally those - used to pass parameters and return values). However, some machines have so - few registers of certain classes that there would not be enough registers to - use as spill registers if this were done. - - Define `SMALL_REGISTER_CLASSES' to be an expression with a non-zero value on - these machines. When this macro has a non-zero value, the compiler allows - registers explicitly used in the rtl to be used as spill registers but - avoids extending the lifetime of these registers. - - It is always safe to define this macro with a non-zero value, but if you - unnecessarily define it, you will reduce the amount of optimizations that - can be performed in some cases. If you do not define this macro with a - non-zero value when it is required, the compiler will run out of spill - registers and print a fatal error message. For most machines, you should - not define this macro at all. */ -/* #define SMALL_REGISTER_CLASSES */ - -/* A C expression whose value is nonzero if pseudos that have been assigned to - registers of class CLASS would likely be spilled because registers of CLASS - are needed for spill registers. - - The default value of this macro returns 1 if CLASS has exactly one register - and zero otherwise. On most machines, this default should be used. Only - define this macro to some other expression if pseudo allocated by - `local-alloc.c' end up in memory because their hard registers were needed - for spill registers. If this macro returns nonzero for those classes, those - pseudos will only be allocated by `global.c', which knows how to reallocate - the pseudo to another register. If there would not be another register - available for reallocation, you should not change the definition of this - macro since the only effect of such a definition would be to slow down - register allocation. */ -#define CLASS_LIKELY_SPILLED_P(CLASS) \ - ((CLASS) != GPR_REGS && (CLASS) != EVEN_REGS) - -/* A C expression for the maximum number of consecutive registers of - class CLASS needed to hold a value of mode MODE. - - This is closely related to the macro `HARD_REGNO_NREGS'. In fact, the value - of the macro `CLASS_MAX_NREGS (CLASS, MODE)' should be the maximum value of - `HARD_REGNO_NREGS (REGNO, MODE)' for all REGNO values in the class CLASS. - - This macro helps control the handling of multiple-word values in - the reload pass. */ - -#define CLASS_MAX_NREGS(CLASS, MODE) \ -(((CLASS) == ACCUM_REGS) \ - ? ((GET_MODE_SIZE (MODE) + 8 - 1) / 8) \ - : ((GET_MODE_SIZE (MODE) + 4 - 1) / 4)) - -/* A C expression that defines the machine-dependent operand constraint letters - (`I', `J', `K', .. 'P') that specify particular ranges of integer values. - If C is one of those letters, the expression should check that VALUE, an - integer, is in the appropriate range and return 1 if so, 0 otherwise. If C - is not one of those letters, the value should be 0 regardless of VALUE. */ -#define CONST_OK_FOR_LETTER_P(VALUE, C) \ -((C) == 'I' ? IN_RANGE_P (VALUE, -32, 31) \ - : (C) == 'J' ? IN_RANGE_P (VALUE, 0, 31) \ - : (C) == 'K' ? IN_RANGE_P (exact_log2 (VALUE), 0, 31) \ - : (C) == 'L' ? IN_RANGE_P (exact_log2 (~ (VALUE)), 0, 31) \ - : (C) == 'M' ? ((VALUE) == 32) \ - : (C) == 'N' ? ((VALUE) == 1) \ - : (C) == 'O' ? ((VALUE) == 0) \ - : (C) == 'P' ? IN_RANGE_P (VALUE, 32, 63) \ - : FALSE) - -/* A C expression that defines the machine-dependent operand constraint letters - (`G', `H') that specify particular ranges of `const_double' values. - - If C is one of those letters, the expression should check that VALUE, an RTX - of code `const_double', is in the appropriate range and return 1 if so, 0 - otherwise. If C is not one of those letters, the value should be 0 - regardless of VALUE. - - `const_double' is used for all floating-point constants and for `DImode' - fixed-point constants. A given letter can accept either or both kinds of - values. It can use `GET_MODE' to distinguish between these kinds. */ -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ -((C) == 'G' ? (CONST_DOUBLE_LOW (VALUE) == 0 \ - && CONST_DOUBLE_HIGH (VALUE) == 0) \ - : (C) == 'H' ? FALSE \ - : FALSE) - -/* A C expression that defines the optional machine-dependent constraint - letters (`Q', `R', `S', `T', `U') that can be used to segregate specific - types of operands, usually memory references, for the target machine. - Normally this macro will not be defined. If it is required for a particular - target machine, it should return 1 if VALUE corresponds to the operand type - represented by the constraint letter C. If C is not defined as an extra - constraint, the value returned should be 0 regardless of VALUE. - - For example, on the ROMP, load instructions cannot have their output in r0 - if the memory reference contains a symbolic address. Constraint letter `Q' - is defined as representing a memory address that does *not* contain a - symbolic address. An alternative is specified with a `Q' constraint on the - input and `r' on the output. The next alternative specifies `m' on the - input and a register class that does not include r0 on the output. */ - -#define EXTRA_CONSTRAINT(VALUE, C) \ -(((C) == 'Q') ? short_memory_operand ((VALUE), GET_MODE (VALUE)) \ - : ((C) == 'R') ? single_reg_memory_operand ((VALUE), GET_MODE (VALUE)) \ - : ((C) == 'S') ? const_addr_memory_operand ((VALUE), GET_MODE (VALUE)) \ - : ((C) == 'T') ? long_memory_operand ((VALUE), GET_MODE (VALUE)) \ - : ((C) == 'U') ? FALSE \ - : FALSE) - - -/* Basic Stack Layout */ - -/* Stack layout */ - -/* Structure used to define the d30v stack */ -typedef struct d30v_stack { - int varargs_p; /* whether this is a varargs function */ - int varargs_size; /* size to hold varargs args passed in regs */ - int vars_size; /* variable save area size */ - int parm_size; /* outgoing parameter size */ - int gpr_size; /* size of saved GPR registers */ - int accum_size; /* size of saved ACCUM registers */ - int total_size; /* total bytes allocated for stack */ - /* which registers are to be saved */ - int save_offset; /* offset from new sp to start saving vars at */ - int link_offset; /* offset r62 is saved at */ - int memrefs_varargs; /* # of 2 word memory references for varargs */ - int memrefs_2words; /* # of 2 word memory references */ - int memrefs_1word; /* # of 1 word memory references */ - /* 1 for ldw/stw ops; 2 for ld2w/st2w ops */ - unsigned char save_p[FIRST_PSEUDO_REGISTER]; -} d30v_stack_t; - -/* Define this macro if pushing a word onto the stack moves the stack pointer - to a smaller address. - - When we say, "define this macro if ...," it means that the compiler checks - this macro only with `#ifdef' so the precise definition used does not - matter. */ -#define STACK_GROWS_DOWNWARD 1 - -/* Define this macro if the addresses of local variable slots are at negative - offsets from the frame pointer. */ -/* #define FRAME_GROWS_DOWNWARD */ - -/* Define this macro if successive arguments to a function occupy decreasing - addresses on the stack. */ -/* #define ARGS_GROW_DOWNWARD */ - -/* Offset from the frame pointer to the first local variable slot to be - allocated. - - If `FRAME_GROWS_DOWNWARD', find the next slot's offset by subtracting the - first slot's length from `STARTING_FRAME_OFFSET'. Otherwise, it is found by - adding the length of the first slot to the value `STARTING_FRAME_OFFSET'. */ - -#define STARTING_FRAME_OFFSET \ - (D30V_ALIGN (current_function_outgoing_args_size, \ - (STACK_BOUNDARY / BITS_PER_UNIT))) - -/* Offset from the stack pointer register to the first location at which - outgoing arguments are placed. If not specified, the default value of zero - is used. This is the proper value for most machines. - - If `ARGS_GROW_DOWNWARD', this is the offset to the location above the first - location at which outgoing arguments are placed. */ -/* #define STACK_POINTER_OFFSET */ - -/* Offset from the argument pointer register to the first argument's address. - On some machines it may depend on the data type of the function. - - If `ARGS_GROW_DOWNWARD', this is the offset to the location above the first - argument's address. */ -#define FIRST_PARM_OFFSET(FUNDECL) 0 - -/* Offset from the stack pointer register to an item dynamically allocated on - the stack, e.g., by `alloca'. - - The default value for this macro is `STACK_POINTER_OFFSET' plus the length - of the outgoing arguments. The default is correct for most machines. See - `function.c' for details. */ -/* #define STACK_DYNAMIC_OFFSET(FUNDECL) */ - -/* A C expression whose value is RTL representing the address in a stack frame - where the pointer to the caller's frame is stored. Assume that FRAMEADDR is - an RTL expression for the address of the stack frame itself. - - If you don't define this macro, the default is to return the value of - FRAMEADDR--that is, the stack frame address is also the address of the stack - word that points to the previous frame. */ -/* #define DYNAMIC_CHAIN_ADDRESS(FRAMEADDR) */ - -/* If defined, a C expression that produces the machine-specific code to setup - the stack so that arbitrary frames can be accessed. For example, on the - Sparc, we must flush all of the register windows to the stack before we can - access arbitrary stack frames. This macro will seldom need to be defined. */ -/* #define SETUP_FRAME_ADDRESSES() */ - -/* A C expression whose value is RTL representing the value of the return - address for the frame COUNT steps up from the current frame, after the - prologue. FRAMEADDR is the frame pointer of the COUNT frame, or the frame - pointer of the COUNT - 1 frame if `RETURN_ADDR_IN_PREVIOUS_FRAME' is - defined. - - The value of the expression must always be the correct address when COUNT is - zero, but may be `NULL_RTX' if there is not way to determine the return - address of other frames. */ - -/* ??? This definition fails for leaf functions. There is currently no - general solution for this problem. */ - -/* ??? There appears to be no way to get the return address of any previous - frame except by disassembling instructions in the prologue/epilogue. - So currently we support only the current frame. */ - -#define RETURN_ADDR_RTX(COUNT, FRAME) \ - ((COUNT) == 0 ? d30v_return_addr() : const0_rtx) - -/* Define this if the return address of a particular stack frame is - accessed from the frame pointer of the previous stack frame. */ -/* #define RETURN_ADDR_IN_PREVIOUS_FRAME */ - -/* A C expression whose value is RTL representing the location of the incoming - return address at the beginning of any function, before the prologue. This - RTL is either a `REG', indicating that the return value is saved in `REG', - or a `MEM' representing a location in the stack. - - You only need to define this macro if you want to support call frame - debugging information like that provided by DWARF 2. */ - -/* Before the prologue, RA lives in r62. */ -#define INCOMING_RETURN_ADDR_RTX gen_rtx (REG, Pmode, GPR_LINK) - -/* A C expression whose value is an integer giving the offset, in bytes, from - the value of the stack pointer register to the top of the stack frame at the - beginning of any function, before the prologue. The top of the frame is - defined to be the value of the stack pointer in the previous frame, just - before the call instruction. - - You only need to define this macro if you want to support call frame - debugging information like that provided by DWARF 2. */ -#define INCOMING_FRAME_SP_OFFSET 0 - -/* Initialize data used by insn expanders. This is called from insn_emit, - once for every function before code is generated. */ - -#define INIT_EXPANDERS d30v_init_expanders () - - -/* Stack Checking. */ - -/* A nonzero value if stack checking is done by the configuration files in a - machine-dependent manner. You should define this macro if stack checking is - require by the ABI of your machine or if you would like to have to stack - checking in some more efficient way than GNU CC's portable approach. The - default value of this macro is zero. */ -/* #define STACK_CHECK_BUILTIN */ - -/* An integer representing the interval at which GNU CC must generate stack - probe instructions. You will normally define this macro to be no larger - than the size of the "guard pages" at the end of a stack area. The default - value of 4096 is suitable for most systems. */ -/* #define STACK_CHECK_PROBE_INTERVAL */ - -/* An integer which is nonzero if GNU CC should perform the stack probe as a - load instruction and zero if GNU CC should use a store instruction. The - default is zero, which is the most efficient choice on most systems. */ -/* #define STACK_CHECK_PROBE_LOAD */ - -/* The number of bytes of stack needed to recover from a stack overflow, for - languages where such a recovery is supported. The default value of 75 words - should be adequate for most machines. */ -/* #define STACK_CHECK_PROTECT */ - -/* The maximum size of a stack frame, in bytes. GNU CC will generate probe - instructions in non-leaf functions to ensure at least this many bytes of - stack are available. If a stack frame is larger than this size, stack - checking will not be reliable and GNU CC will issue a warning. The default - is chosen so that GNU CC only generates one instruction on most systems. - You should normally not change the default value of this macro. */ -/* #define STACK_CHECK_MAX_FRAME_SIZE */ - -/* GNU CC uses this value to generate the above warning message. It represents - the amount of fixed frame used by a function, not including space for any - callee-saved registers, temporaries and user variables. You need only - specify an upper bound for this amount and will normally use the default of - four words. */ -/* #define STACK_CHECK_FIXED_FRAME_SIZE */ - -/* The maximum size, in bytes, of an object that GNU CC will place in the fixed - area of the stack frame when the user specifies `-fstack-check'. GNU CC - computed the default from the values of the above macros and you will - normally not need to override that default. */ -/* #define STACK_CHECK_MAX_VAR_SIZE */ - - -/* Register That Address the Stack Frame. */ - -/* The register number of the stack pointer register, which must also be a - fixed register according to `FIXED_REGISTERS'. On most machines, the - hardware determines which register this is. */ -#define STACK_POINTER_REGNUM GPR_SP - -/* The register number of the frame pointer register, which is used to access - automatic variables in the stack frame. On some machines, the hardware - determines which register this is. On other machines, you can choose any - register you wish for this purpose. */ -#define FRAME_POINTER_REGNUM GPR_FP - -/* On some machines the offset between the frame pointer and starting offset of - the automatic variables is not known until after register allocation has - been done (for example, because the saved registers are between these two - locations). On those machines, define `FRAME_POINTER_REGNUM' the number of - a special, fixed register to be used internally until the offset is known, - and define `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number - used for the frame pointer. - - You should define this macro only in the very rare circumstances when it is - not possible to calculate the offset between the frame pointer and the - automatic variables until after register allocation has been completed. - When this macro is defined, you must also indicate in your definition of - `ELIMINABLE_REGS' how to eliminate `FRAME_POINTER_REGNUM' into either - `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'. - - Do not define this macro if it would be the same as `FRAME_POINTER_REGNUM'. */ -/* #define HARD_FRAME_POINTER_REGNUM */ - -/* The register number of the arg pointer register, which is used to access the - function's argument list. On some machines, this is the same as the frame - pointer register. On some machines, the hardware determines which register - this is. On other machines, you can choose any register you wish for this - purpose. If this is not the same register as the frame pointer register, - then you must mark it as a fixed register according to `FIXED_REGISTERS', or - arrange to be able to eliminate it (*note Elimination::.). */ -/* #define ARG_POINTER_REGNUM */ - -/* The register number of the return address pointer register, which is used to - access the current function's return address from the stack. On some - machines, the return address is not at a fixed offset from the frame pointer - or stack pointer or argument pointer. This register can be defined to point - to the return address on the stack, and then be converted by - `ELIMINABLE_REGS' into either the frame pointer or stack pointer. - - Do not define this macro unless there is no other way to get the return - address from the stack. */ -/* #define RETURN_ADDRESS_POINTER_REGNUM */ - -/* Register numbers used for passing a function's static chain pointer. If - register windows are used, the register number as seen by the called - function is `STATIC_CHAIN_INCOMING_REGNUM', while the register number as - seen by the calling function is `STATIC_CHAIN_REGNUM'. If these registers - are the same, `STATIC_CHAIN_INCOMING_REGNUM' need not be defined. - - The static chain register need not be a fixed register. - - If the static chain is passed in memory, these macros should not be defined; - instead, the next two macros should be defined. */ - -#define STATIC_CHAIN_REGNUM (GPR_FIRST + 18) -/* #define STATIC_CHAIN_INCOMING_REGNUM */ - -/* If the static chain is passed in memory, these macros provide rtx giving - `mem' expressions that denote where they are stored. `STATIC_CHAIN' and - `STATIC_CHAIN_INCOMING' give the locations as seen by the calling and called - functions, respectively. Often the former will be at an offset from the - stack pointer and the latter at an offset from the frame pointer. - - The variables `stack_pointer_rtx', `frame_pointer_rtx', and - `arg_pointer_rtx' will have been initialized prior to the use of these - macros and should be used to refer to those items. - - If the static chain is passed in a register, the two previous - macros should be defined instead. */ -/* #define STATIC_CHAIN */ -/* #define STATIC_CHAIN_INCOMING */ - - -/* Eliminating the Frame Pointer and the Arg Pointer */ - -/* A C expression which is nonzero if a function must have and use a frame - pointer. This expression is evaluated in the reload pass. If its value is - nonzero the function will have a frame pointer. - - The expression can in principle examine the current function and decide - according to the facts, but on most machines the constant 0 or the constant - 1 suffices. Use 0 when the machine allows code to be generated with no - frame pointer, and doing so saves some time or space. Use 1 when there is - no possible advantage to avoiding a frame pointer. - - In certain cases, the compiler does not know how to produce valid code - without a frame pointer. The compiler recognizes those cases and - automatically gives the function a frame pointer regardless of what - `FRAME_POINTER_REQUIRED' says. You don't need to worry about them. - - In a function that does not require a frame pointer, the frame pointer - register can be allocated for ordinary usage, unless you mark it as a fixed - register. See `FIXED_REGISTERS' for more information. */ -#define FRAME_POINTER_REQUIRED 0 - -/* A C statement to store in the variable DEPTH-VAR the difference between the - frame pointer and the stack pointer values immediately after the function - prologue. The value would be computed from information such as the result - of `get_frame_size ()' and the tables of registers `regs_ever_live' and - `call_used_regs'. - - If `ELIMINABLE_REGS' is defined, this macro will be not be used and need not - be defined. Otherwise, it must be defined even if `FRAME_POINTER_REQUIRED' - is defined to always be true; in that case, you may set DEPTH-VAR to - anything. */ -/* #define INITIAL_FRAME_POINTER_OFFSET(DEPTH_VAR) */ - -/* If defined, this macro specifies a table of register pairs used to eliminate - unneeded registers that point into the stack frame. If it is not defined, - the only elimination attempted by the compiler is to replace references to - the frame pointer with references to the stack pointer. - - The definition of this macro is a list of structure initializations, each of - which specifies an original and replacement register. - - On some machines, the position of the argument pointer is not known until - the compilation is completed. In such a case, a separate hard register must - be used for the argument pointer. This register can be eliminated by - replacing it with either the frame pointer or the argument pointer, - depending on whether or not the frame pointer has been eliminated. - - In this case, you might specify: - #define ELIMINABLE_REGS \ - {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ - {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ - {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} - - Note that the elimination of the argument pointer with the stack pointer is - specified first since that is the preferred elimination. */ -#define ELIMINABLE_REGS \ -{ \ - { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ - { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM }, \ - { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM } \ -} - -/* A C expression that returns non-zero if the compiler is allowed to try to - replace register number FROM-REG with register number TO-REG. This macro - need only be defined if `ELIMINABLE_REGS' is defined, and will usually be - the constant 1, since most of the cases preventing register elimination are - things that the compiler already knows about. */ - -#define CAN_ELIMINATE(FROM, TO) \ - ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM \ - ? ! frame_pointer_needed \ - : 1) - -/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It specifies the - initial difference between the specified pair of registers. This macro must - be defined if `ELIMINABLE_REGS' is defined. */ - -#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ -{ \ - d30v_stack_t *info = d30v_stack_info (); \ - \ - if ((FROM) == FRAME_POINTER_REGNUM) \ - (OFFSET) = 0; \ - else if ((FROM) == ARG_POINTER_REGNUM) \ - (OFFSET) = info->total_size - current_function_pretend_args_size; \ - else \ - abort (); \ -} - - -/* Passing Function Arguments on the Stack */ - -/* Define this macro if an argument declared in a prototype as an integral type - smaller than `int' should actually be passed as an `int'. In addition to - avoiding errors in certain cases of mismatch, it also makes for better code - on certain machines. */ -/* #define PROMOTE_PROTOTYPES */ - -/* A C expression that is the number of bytes actually pushed onto the stack - when an instruction attempts to push NPUSHED bytes. - - If the target machine does not have a push instruction, do not define this - macro. That directs GNU CC to use an alternate strategy: to allocate the - entire argument block and then store the arguments into it. - - On some machines, the definition - - #define PUSH_ROUNDING(BYTES) (BYTES) - - will suffice. But on other machines, instructions that appear to push one - byte actually push two bytes in an attempt to maintain alignment. Then the - definition should be - - #define PUSH_ROUNDING(BYTES) (((BYTES) + 1) & ~1) */ -/* #define PUSH_ROUNDING(NPUSHED) */ - -/* If defined, the maximum amount of space required for outgoing arguments will - be computed and placed into the variable - `current_function_outgoing_args_size'. No space will be pushed onto the - stack for each call; instead, the function prologue should increase the - stack frame size by this amount. - - Defining both `PUSH_ROUNDING' and `ACCUMULATE_OUTGOING_ARGS' is not - proper. */ -#define ACCUMULATE_OUTGOING_ARGS 1 - -/* Define this macro if functions should assume that stack space has been - allocated for arguments even when their values are passed in registers. - - The value of this macro is the size, in bytes, of the area reserved for - arguments passed in registers for the function represented by FNDECL. - - This space can be allocated by the caller, or be a part of the - machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' says - which. */ -/* #define REG_PARM_STACK_SPACE(FNDECL) */ - -/* Define these macros in addition to the one above if functions might allocate - stack space for arguments even when their values are passed in registers. - These should be used when the stack space allocated for arguments in - registers is not a simple constant independent of the function declaration. - - The value of the first macro is the size, in bytes, of the area that we - should initially assume would be reserved for arguments passed in registers. - - The value of the second macro is the actual size, in bytes, of the area that - will be reserved for arguments passed in registers. This takes two - arguments: an integer representing the number of bytes of fixed sized - arguments on the stack, and a tree representing the number of bytes of - variable sized arguments on the stack. - - When these macros are defined, `REG_PARM_STACK_SPACE' will only be called - for libcall functions, the current function, or for a function being called - when it is known that such stack space must be allocated. In each case this - value can be easily computed. - - When deciding whether a called function needs such stack space, and how much - space to reserve, GNU CC uses these two macros instead of - `REG_PARM_STACK_SPACE'. */ -/* #define MAYBE_REG_PARM_STACK_SPACE */ -/* #define FINAL_REG_PARM_STACK_SPACE(CONST_SIZE, VAR_SIZE) */ - -/* Define this if it is the responsibility of the caller to allocate the area - reserved for arguments passed in registers. - - If `ACCUMULATE_OUTGOING_ARGS' is defined, this macro controls whether the - space for these arguments counts in the value of - `current_function_outgoing_args_size'. */ -/* #define OUTGOING_REG_PARM_STACK_SPACE */ - -/* Define this macro if `REG_PARM_STACK_SPACE' is defined, but the stack - parameters don't skip the area specified by it. - - Normally, when a parameter is not passed in registers, it is placed on the - stack beyond the `REG_PARM_STACK_SPACE' area. Defining this macro - suppresses this behavior and causes the parameter to be passed on the stack - in its natural location. */ -/* #define STACK_PARMS_IN_REG_PARM_AREA */ - -/* A C expression that should indicate the number of bytes of its own arguments - that a function pops on returning, or 0 if the function pops no arguments - and the caller must therefore pop them all after the function returns. - - FUNDECL is a C variable whose value is a tree node that describes the - function in question. Normally it is a node of type `FUNCTION_DECL' that - describes the declaration of the function. From this it is possible to - obtain the DECL_ATTRIBUTES of the function. - - FUNTYPE is a C variable whose value is a tree node that describes the - function in question. Normally it is a node of type `FUNCTION_TYPE' that - describes the data type of the function. From this it is possible to obtain - the data types of the value and arguments (if known). - - When a call to a library function is being considered, FUNTYPE will contain - an identifier node for the library function. Thus, if you need to - distinguish among various library functions, you can do so by their names. - Note that "library function" in this context means a function used to - perform arithmetic, whose name is known specially in the compiler and was - not mentioned in the C code being compiled. - - STACK-SIZE is the number of bytes of arguments passed on the stack. If a - variable number of bytes is passed, it is zero, and argument popping will - always be the responsibility of the calling function. - - On the VAX, all functions always pop their arguments, so the definition of - this macro is STACK-SIZE. On the 68000, using the standard calling - convention, no functions pop their arguments, so the value of the macro is - always 0 in this case. But an alternative calling convention is available - in which functions that take a fixed number of arguments pop them but other - functions (such as `printf') pop nothing (the caller pops all). When this - convention is in use, FUNTYPE is examined to determine whether a function - takes a fixed number of arguments. */ -#define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0 - - -/* Function Arguments in Registers */ - -/* A C expression that controls whether a function argument is passed in a - register, and which register. - - The arguments are CUM, which summarizes all the previous arguments; MODE, - the machine mode of the argument; TYPE, the data type of the argument as a - tree node or 0 if that is not known (which happens for C support library - functions); and NAMED, which is 1 for an ordinary argument and 0 for - nameless arguments that correspond to `...' in the called function's - prototype. - - The value of the expression should either be a `reg' RTX for the hard - register in which to pass the argument, or zero to pass the argument on the - stack. - - For machines like the VAX and 68000, where normally all arguments are - pushed, zero suffices as a definition. - - The usual way to make the ANSI library `stdarg.h' work on a machine where - some arguments are usually passed in registers, is to cause nameless - arguments to be passed on the stack instead. This is done by making - `FUNCTION_ARG' return 0 whenever NAMED is 0. - - You may use the macro `MUST_PASS_IN_STACK (MODE, TYPE)' in the definition of - this macro to determine if this argument is of a type that must be passed in - the stack. If `REG_PARM_STACK_SPACE' is not defined and `FUNCTION_ARG' - returns non-zero for such an argument, the compiler will abort. If - `REG_PARM_STACK_SPACE' is defined, the argument will be computed in the - stack and then loaded into a register. */ - -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ - d30v_function_arg (&CUM, (int)MODE, TYPE, NAMED, FALSE) - -/* Define this macro if the target machine has "register windows", so that the - register in which a function sees an arguments is not necessarily the same - as the one in which the caller passed the argument. - - For such machines, `FUNCTION_ARG' computes the register in which the caller - passes the value, and `FUNCTION_INCOMING_ARG' should be defined in a similar - fashion to tell the function being called where the arguments will arrive. - - If `FUNCTION_INCOMING_ARG' is not defined, `FUNCTION_ARG' serves both - purposes. */ - -#define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) \ - d30v_function_arg (&CUM, (int)MODE, TYPE, NAMED, TRUE) - -/* A C expression for the number of words, at the beginning of an argument, - must be put in registers. The value must be zero for arguments that are - passed entirely in registers or that are entirely pushed on the stack. - - On some machines, certain arguments must be passed partially in registers - and partially in memory. On these machines, typically the first N words of - arguments are passed in registers, and the rest on the stack. If a - multi-word argument (a `double' or a structure) crosses that boundary, its - first few words must be passed in registers and the rest must be pushed. - This macro tells the compiler when this occurs, and how many of the words - should go in registers. - - `FUNCTION_ARG' for these arguments should return the first register to be - used by the caller for this argument; likewise `FUNCTION_INCOMING_ARG', for - the called function. */ -#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \ - d30v_function_arg_partial_nregs (&CUM, (int)MODE, TYPE, NAMED) - -/* A C expression that indicates when an argument must be passed by reference. - If nonzero for an argument, a copy of that argument is made in memory and a - pointer to the argument is passed instead of the argument itself. The - pointer is passed in whatever way is appropriate for passing a pointer to - that type. - - On machines where `REG_PARM_STACK_SPACE' is not defined, a suitable - definition of this macro might be - #define FUNCTION_ARG_PASS_BY_REFERENCE\ - (CUM, MODE, TYPE, NAMED) \ - MUST_PASS_IN_STACK (MODE, TYPE) */ -#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) 0 - -/* If defined, a C expression that indicates when it is the called function's - responsibility to make a copy of arguments passed by invisible reference. - Normally, the caller makes a copy and passes the address of the copy to the - routine being called. When FUNCTION_ARG_CALLEE_COPIES is defined and is - nonzero, the caller does not make a copy. Instead, it passes a pointer to - the "live" value. The called function must not modify this value. If it - can be determined that the value won't be modified, it need not make a copy; - otherwise a copy must be made. */ -/* #define FUNCTION_ARG_CALLEE_COPIES(CUM, MODE, TYPE, NAMED) */ - -/* A C type for declaring a variable that is used as the first argument of - `FUNCTION_ARG' and other related values. For some target machines, the type - `int' suffices and can hold the number of bytes of argument so far. - - There is no need to record in `CUMULATIVE_ARGS' anything about the arguments - that have been passed on the stack. The compiler has other variables to - keep track of that. For target machines on which all arguments are passed - on the stack, there is no need to store anything in `CUMULATIVE_ARGS'; - however, the data structure must exist and should not be empty, so use - `int'. */ -typedef int CUMULATIVE_ARGS; - -/* A C statement (sans semicolon) for initializing the variable CUM for the - state at the beginning of the argument list. The variable has type - `CUMULATIVE_ARGS'. The value of FNTYPE is the tree node for the data type - of the function which will receive the args, or 0 if the args are to a - compiler support library function. The value of INDIRECT is nonzero when - processing an indirect call, for example a call through a function pointer. - The value of INDIRECT is zero for a call to an explicitly named function, a - library function call, or when `INIT_CUMULATIVE_ARGS' is used to find - arguments for the function being compiled. - - When processing a call to a compiler support library function, LIBNAME - identifies which one. It is a `symbol_ref' rtx which contains the name of - the function, as a string. LIBNAME is 0 when an ordinary C function call is - being processed. Thus, each time this macro is called, either LIBNAME or - FNTYPE is nonzero, but never both of them at once. */ - -#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT) \ - d30v_init_cumulative_args (&CUM, FNTYPE, LIBNAME, INDIRECT, FALSE) - -/* Like `INIT_CUMULATIVE_ARGS' but overrides it for the purposes of finding the - arguments for the function being compiled. If this macro is undefined, - `INIT_CUMULATIVE_ARGS' is used instead. - - The value passed for LIBNAME is always 0, since library routines with - special calling conventions are never compiled with GNU CC. The argument - LIBNAME exists for symmetry with `INIT_CUMULATIVE_ARGS'. */ - -#define INIT_CUMULATIVE_INCOMING_ARGS(CUM, FNTYPE, LIBNAME) \ - d30v_init_cumulative_args (&CUM, FNTYPE, LIBNAME, FALSE, TRUE) - -/* A C statement (sans semicolon) to update the summarizer variable CUM to - advance past an argument in the argument list. The values MODE, TYPE and - NAMED describe that argument. Once this is done, the variable CUM is - suitable for analyzing the *following* argument with `FUNCTION_ARG', etc. - - This macro need not do anything if the argument in question was passed on - the stack. The compiler knows how to track the amount of stack space used - for arguments without any special help. */ - -#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ - d30v_function_arg_advance (&CUM, (int) MODE, TYPE, NAMED) - -/* If defined, a C expression which determines whether, and in which direction, - to pad out an argument with extra space. The value should be of type `enum - direction': either `upward' to pad above the argument, `downward' to pad - below, or `none' to inhibit padding. - - The *amount* of padding is always just enough to reach the next multiple of - `FUNCTION_ARG_BOUNDARY'; this macro does not control it. - - This macro has a default definition which is right for most systems. For - little-endian machines, the default is to pad upward. For big-endian - machines, the default is to pad downward for an argument of constant size - shorter than an `int', and upward otherwise. */ -/* #define FUNCTION_ARG_PADDING(MODE, TYPE) */ - -/* If defined, a C expression that gives the alignment boundary, in bits, of an - argument with the specified mode and type. If it is not defined, - `PARM_BOUNDARY' is used for all arguments. */ - -#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \ - d30v_function_arg_boundary ((int) MODE, TYPE) - -/* A C expression that is nonzero if REGNO is the number of a hard register in - which function arguments are sometimes passed. This does *not* include - implicit arguments such as the static chain and the structure-value address. - On many machines, no registers can be used for this purpose since all - function arguments are pushed on the stack. */ - -#define FUNCTION_ARG_REGNO_P(REGNO) \ - IN_RANGE_P (REGNO, GPR_ARG_FIRST, GPR_ARG_LAST) - - -/* How Scalar Function Values are Returned */ - -/* Define this macro if `-traditional' should not cause functions declared to - return `float' to convert the value to `double'. */ /* #define - TRADITIONAL_RETURN_FLOAT */ - -/* A C expression to create an RTX representing the place where a function - returns a value of data type VALTYPE. VALTYPE is a tree node representing a - data type. Write `TYPE_MODE (VALTYPE)' to get the machine mode used to - represent that type. On many machines, only the mode is relevant. - (Actually, on most machines, scalar values are returned in the same place - regardless of mode). - - If `PROMOTE_FUNCTION_RETURN' is defined, you must apply the same promotion - rules specified in `PROMOTE_MODE' if VALTYPE is a scalar type. - - If the precise function being called is known, FUNC is a tree node - (`FUNCTION_DECL') for it; otherwise, FUNC is a null pointer. This makes it - possible to use a different value-returning convention for specific - functions when all their calls are known. - - `FUNCTION_VALUE' is not used for return vales with aggregate data types, - because these are returned in another way. See `STRUCT_VALUE_REGNUM' and - related macros, below. */ - -#define FUNCTION_VALUE(VALTYPE, FUNC) \ - gen_rtx (REG, TYPE_MODE (VALTYPE), GPR_RET_VALUE) - -/* Define this macro if the target machine has "register windows" so that the - register in which a function returns its value is not the same as the one in - which the caller sees the value. - - For such machines, `FUNCTION_VALUE' computes the register in which the - caller will see the value. `FUNCTION_OUTGOING_VALUE' should be defined in a - similar fashion to tell the function where to put the value. - - If `FUNCTION_OUTGOING_VALUE' is not defined, `FUNCTION_VALUE' serves both - purposes. - - `FUNCTION_OUTGOING_VALUE' is not used for return vales with aggregate data - types, because these are returned in another way. See `STRUCT_VALUE_REGNUM' - and related macros, below. */ -/* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) */ - -/* A C expression to create an RTX representing the place where a library - function returns a value of mode MODE. If the precise function being called - is known, FUNC is a tree node (`FUNCTION_DECL') for it; otherwise, FUNC is a - null pointer. This makes it possible to use a different value-returning - convention for specific functions when all their calls are known. - - Note that "library function" in this context means a compiler support - routine, used to perform arithmetic, whose name is known specially by the - compiler and was not mentioned in the C code being compiled. - - The definition of `LIBRARY_VALUE' need not be concerned aggregate data - types, because none of the library functions returns such types. */ - -#define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, GPR_RET_VALUE) - -/* A C expression that is nonzero if REGNO is the number of a hard register in - which the values of called function may come back. - - A register whose use for returning values is limited to serving as the - second of a pair (for a value of type `double', say) need not be recognized - by this macro. So for most machines, this definition suffices: - - #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0) - - If the machine has register windows, so that the caller and the called - function use different registers for the return value, this macro should - recognize only the caller's register numbers. */ - -#define FUNCTION_VALUE_REGNO_P(REGNO) ((REGNO) == GPR_RET_VALUE) - -/* Define this macro if `untyped_call' and `untyped_return' need more space - than is implied by `FUNCTION_VALUE_REGNO_P' for saving and restoring an - arbitrary return value. */ -/* #define APPLY_RESULT_SIZE */ - - -/* How Large Values are Returned */ - -/* A C expression which can inhibit the returning of certain function values in - registers, based on the type of value. A nonzero value says to return the - function value in memory, just as large structures are always returned. - Here TYPE will be a C expression of type `tree', representing the data type - of the value. - - Note that values of mode `BLKmode' must be explicitly handled by this macro. - Also, the option `-fpcc-struct-return' takes effect regardless of this - macro. On most systems, it is possible to leave the macro undefined; this - causes a default definition to be used, whose value is the constant 1 for - `BLKmode' values, and 0 otherwise. - - Do not use this macro to indicate that structures and unions should always - be returned in memory. You should instead use `DEFAULT_PCC_STRUCT_RETURN' - to indicate this. */ -/* #define RETURN_IN_MEMORY(TYPE) */ - -/* Define this macro to be 1 if all structure and union return values must be - in memory. Since this results in slower code, this should be defined only - if needed for compatibility with other compilers or with an ABI. If you - define this macro to be 0, then the conventions used for structure and union - return values are decided by the `RETURN_IN_MEMORY' macro. - - If not defined, this defaults to the value 1. */ -/* #define DEFAULT_PCC_STRUCT_RETURN */ - -/* If the structure value address is passed in a register, then - `STRUCT_VALUE_REGNUM' should be the number of that register. */ - -#define STRUCT_VALUE_REGNUM GPR_ARG_FIRST - -/* If the structure value address is not passed in a register, define - `STRUCT_VALUE' as an expression returning an RTX for the place where the - address is passed. If it returns 0, the address is passed as an "invisible" - first argument. */ - -#define STRUCT_VALUE 0 - -/* On some architectures the place where the structure value address is found - by the called function is not the same place that the caller put it. This - can be due to register windows, or it could be because the function prologue - moves it to a different place. - - If the incoming location of the structure value address is in a register, - define this macro as the register number. */ -/* #define STRUCT_VALUE_INCOMING_REGNUM */ - -/* If the incoming location is not a register, then you should define - `STRUCT_VALUE_INCOMING' as an expression for an RTX for where the called - function should find the value. If it should find the value on the stack, - define this to create a `mem' which refers to the frame pointer. A - definition of 0 means that the address is passed as an "invisible" first - argument. */ -/* #define STRUCT_VALUE_INCOMING */ - -/* Define this macro if the usual system convention on the target machine for - returning structures and unions is for the called function to return the - address of a static variable containing the value. - - Do not define this if the usual system convention is for the caller to pass - an address to the subroutine. - - This macro has effect in `-fpcc-struct-return' mode, but it does nothing - when you use `-freg-struct-return' mode. */ -/* #define PCC_STATIC_STRUCT_RETURN */ - - -/* Caller-Saves Register Allocation */ - -/* Define this macro if function calls on the target machine do not preserve - any registers; in other words, if `CALL_USED_REGISTERS' has 1 for all - registers. This macro enables `-fcaller-saves' by default. Eventually that - option will be enabled by default on all machines and both the option and - this macro will be eliminated. */ -/* #define DEFAULT_CALLER_SAVES */ - -/* A C expression to determine whether it is worthwhile to consider placing a - pseudo-register in a call-clobbered hard register and saving and restoring - it around each function call. The expression should be 1 when this is worth - doing, and 0 otherwise. - - If you don't define this macro, a default is used which is good on most - machines: `4 * CALLS < REFS'. */ -/* #define CALLER_SAVE_PROFITABLE(REFS, CALLS) */ - - -/* #define EXIT_IGNORE_STACK */ - -/* Define this macro as a C expression that is nonzero for registers - are used by the epilogue or the `return' pattern. The stack and - frame pointer registers are already be assumed to be used as - needed. */ -#define EPILOGUE_USES(REGNO) ((REGNO) == GPR_LINK) - -/* Define this macro if the function epilogue contains delay slots to which - instructions from the rest of the function can be "moved". The definition - should be a C expression whose value is an integer representing the number - of delay slots there. */ -/* #define DELAY_SLOTS_FOR_EPILOGUE */ - -/* A C expression that returns 1 if INSN can be placed in delay slot number N - of the epilogue. - - The argument N is an integer which identifies the delay slot now being - considered (since different slots may have different rules of eligibility). - It is never negative and is always less than the number of epilogue delay - slots (what `DELAY_SLOTS_FOR_EPILOGUE' returns). If you reject a particular - insn for a given delay slot, in principle, it may be reconsidered for a - subsequent delay slot. Also, other insns may (at least in principle) be - considered for the so far unfilled delay slot. - - The insns accepted to fill the epilogue delay slots are put in an - RTL list made with `insn_list' objects, stored in the variable - `current_function_epilogue_delay_list'. The insn for the first - delay slot comes first in the list. Your definition of the function - output_function_epilogue() should fill the delay slots by outputting the - insns in this list, usually by calling `final_scan_insn'. - - You need not define this macro if you did not define - `DELAY_SLOTS_FOR_EPILOGUE'. */ -/* #define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN, N) */ - -/* A C compound statement that outputs the assembler code for a thunk function, - used to implement C++ virtual function calls with multiple inheritance. The - thunk acts as a wrapper around a virtual function, adjusting the implicit - object parameter before handing control off to the real function. - - First, emit code to add the integer DELTA to the location that contains the - incoming first argument. Assume that this argument contains a pointer, and - is the one used to pass the `this' pointer in C++. This is the incoming - argument *before* the function prologue, e.g. `%o0' on a sparc. The - addition must preserve the values of all other incoming arguments. - - After the addition, emit code to jump to FUNCTION, which is a - `FUNCTION_DECL'. This is a direct pure jump, not a call, and does not touch - the return address. Hence returning from FUNCTION will return to whoever - called the current `thunk'. - - The effect must be as if FUNCTION had been called directly with the - adjusted first argument. This macro is responsible for emitting - all of the code for a thunk function; output_function_prologue() - and output_function_epilogue() are not invoked. - - The THUNK_FNDECL is redundant. (DELTA and FUNCTION have already been - extracted from it.) It might possibly be useful on some targets, but - probably not. - - If you do not define this macro, the target-independent code in the C++ - frontend will generate a less efficient heavyweight thunk that calls - FUNCTION instead of jumping to it. The generic approach does not support - varargs. */ -/* #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) */ - -/* A C structure for machine-specific, per-function data. - This is added to the cfun structure. */ -typedef struct machine_function -{ - /* Additionsl stack adjustment in __builtin_eh_throw. */ - struct rtx_def * eh_epilogue_sp_ofs; -} machine_function; - - -/* Generating Code for Profiling. */ - -/* A C statement or compound statement to output to FILE some assembler code to - call the profiling subroutine `mcount'. Before calling, the assembler code - must load the address of a counter variable into a register where `mcount' - expects to find the address. The name of this variable is `LP' followed by - the number LABELNO, so you would generate the name using `LP%d' in a - `fprintf'. - - The details of how the address should be passed to `mcount' are determined - by your operating system environment, not by GNU CC. To figure them out, - compile a small program for profiling using the system's installed C - compiler and look at the assembler code that results. */ - -#define FUNCTION_PROFILER(FILE, LABELNO) d30v_function_profiler (FILE, LABELNO) - -/* Define this macro if the code for function profiling should come before the - function prologue. Normally, the profiling code comes after. */ -/* #define PROFILE_BEFORE_PROLOGUE */ - - -/* Implementing the Varargs Macros. */ - -/* If defined, is a C expression that produces the machine-specific code for a - call to `__builtin_saveregs'. This code will be moved to the very beginning - of the function, before any parameter access are made. The return value of - this function should be an RTX that contains the value to use as the return - of `__builtin_saveregs'. - - If this macro is not defined, the compiler will output an ordinary call to - the library function `__builtin_saveregs'. */ - -#define EXPAND_BUILTIN_SAVEREGS() d30v_expand_builtin_saveregs () - -/* This macro offers an alternative to using `__builtin_saveregs' and defining - the macro `EXPAND_BUILTIN_SAVEREGS'. Use it to store the anonymous register - arguments into the stack so that all the arguments appear to have been - passed consecutively on the stack. Once this is done, you can use the - standard implementation of varargs that works for machines that pass all - their arguments on the stack. - - The argument ARGS_SO_FAR is the `CUMULATIVE_ARGS' data structure, containing - the values that obtain after processing of the named arguments. The - arguments MODE and TYPE describe the last named argument--its machine mode - and its data type as a tree node. - - The macro implementation should do two things: first, push onto the stack - all the argument registers *not* used for the named arguments, and second, - store the size of the data thus pushed into the `int'-valued variable whose - name is supplied as the argument PRETEND_ARGS_SIZE. The value that you - store here will serve as additional offset for setting up the stack frame. - - Because you must generate code to push the anonymous arguments at compile - time without knowing their data types, `SETUP_INCOMING_VARARGS' is only - useful on machines that have just a single category of argument register and - use it uniformly for all data types. - - If the argument SECOND_TIME is nonzero, it means that the arguments of the - function are being analyzed for the second time. This happens for an inline - function, which is not actually compiled until the end of the source file. - The macro `SETUP_INCOMING_VARARGS' should not generate any instructions in - this case. */ - -#define SETUP_INCOMING_VARARGS(ARGS_SO_FAR, MODE, TYPE, PRETEND_ARGS_SIZE, SECOND_TIME) \ - d30v_setup_incoming_varargs (&ARGS_SO_FAR, (int) MODE, TYPE, \ - &PRETEND_ARGS_SIZE, SECOND_TIME) - -/* Define this macro if the location where a function argument is passed - depends on whether or not it is a named argument. - - This macro controls how the NAMED argument to `FUNCTION_ARG' is set for - varargs and stdarg functions. With this macro defined, the NAMED argument - is always true for named arguments, and false for unnamed arguments. If - this is not defined, but `SETUP_INCOMING_VARARGS' is defined, then all - arguments are treated as named. Otherwise, all named arguments except the - last are treated as named. */ -/* #define STRICT_ARGUMENT_NAMING */ - -/* Build up the stdarg/varargs va_list type tree, assinging it to NODE. If not - defined, it is assumed that va_list is a void * pointer. */ - -#define BUILD_VA_LIST_TYPE(VALIST) \ - (VALIST) = d30v_build_va_list () - - -/* Implement the stdarg/varargs va_start macro. STDARG_P is non-zero if this - is stdarg.h instead of varargs.h. VALIST is the tree of the va_list - variable to initialize. NEXTARG is the machine independent notion of the - 'next' argument after the variable arguments. If not defined, a standard - implementation will be defined that works for arguments passed on the stack. */ - -#define EXPAND_BUILTIN_VA_START(STDARG_P, VALIST, NEXTARG) \ -(d30v_expand_builtin_va_start(STDARG_P, VALIST, NEXTARG)) - -/* Implement the stdarg/varargs va_arg macro. VALIST is the variable of type - va_list as a tree, TYPE is the type passed to va_arg. */ - -#define EXPAND_BUILTIN_VA_ARG(VALIST, TYPE) \ -(d30v_expand_builtin_va_arg (VALIST, TYPE)) - -/* Implement the stdarg/varargs va_end macro. - VALIST is the variable of type va_list as a tree. */ - -/* #define EXPAND_BUILTIN_VA_END(VALIST) */ - - - -/* Trampolines for Nested Functions. */ - -/* A C statement to output, on the stream FILE, assembler code for a block of - data that contains the constant parts of a trampoline. This code should not - include a label--the label is taken care of automatically. */ -/* #define TRAMPOLINE_TEMPLATE(FILE) d30v_trampoline_template (FILE) */ - -/* The name of a subroutine to switch to the section in which the trampoline - template is to be placed (*note Sections::.). The default is a value of - `readonly_data_section', which places the trampoline in the section - containing read-only data. */ -/* #define TRAMPOLINE_SECTION */ - -/* A C expression for the size in bytes of the trampoline, as an integer. */ -#define TRAMPOLINE_SIZE (d30v_trampoline_size ()) - -/* Alignment required for trampolines, in bits. - - If you don't define this macro, the value of `BIGGEST_ALIGNMENT' is used for - aligning trampolines. */ -#define TRAMPOLINE_ALIGNMENT 64 - -/* A C statement to initialize the variable parts of a trampoline. ADDR is an - RTX for the address of the trampoline; FNADDR is an RTX for the address of - the nested function; STATIC_CHAIN is an RTX for the static chain value that - should be passed to the function when it is called. */ -#define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, STATIC_CHAIN) \ - d30v_initialize_trampoline (ADDR, FNADDR, STATIC_CHAIN) - -/* A C expression to allocate run-time space for a trampoline. The expression - value should be an RTX representing a memory reference to the space for the - trampoline. - - If this macro is not defined, by default the trampoline is allocated as a - stack slot. This default is right for most machines. The exceptions are - machines where it is impossible to execute instructions in the stack area. - On such machines, you may have to implement a separate stack, using this - macro in conjunction with output_function_prologue () and - output_function_epilogue (). - - FP points to a data structure, a `struct function', which describes the - compilation status of the immediate containing function of the function - which the trampoline is for. Normally (when `ALLOCATE_TRAMPOLINE' is not - defined), the stack slot for the trampoline is in the stack frame of this - containing function. Other allocation strategies probably must do something - analogous with this information. */ -/* #define ALLOCATE_TRAMPOLINE(FP) */ - -/* Implementing trampolines is difficult on many machines because they have - separate instruction and data caches. Writing into a stack location fails - to clear the memory in the instruction cache, so when the program jumps to - that location, it executes the old contents. - - Here are two possible solutions. One is to clear the relevant parts of the - instruction cache whenever a trampoline is set up. The other is to make all - trampolines identical, by having them jump to a standard subroutine. The - former technique makes trampoline execution faster; the latter makes - initialization faster. - - To clear the instruction cache when a trampoline is initialized, define the - following macros which describe the shape of the cache. */ - -/* The total size in bytes of the cache. */ -/* #define INSN_CACHE_SIZE */ - -/* The length in bytes of each cache line. The cache is divided into cache - lines which are disjoint slots, each holding a contiguous chunk of data - fetched from memory. Each time data is brought into the cache, an entire - line is read at once. The data loaded into a cache line is always aligned - on a boundary equal to the line size. */ -/* #define INSN_CACHE_LINE_WIDTH */ - -/* The number of alternative cache lines that can hold any particular memory - location. */ -/* #define INSN_CACHE_DEPTH */ - -/* Alternatively, if the machine has system calls or instructions to clear the - instruction cache directly, you can define the following macro. */ - -/* If defined, expands to a C expression clearing the *instruction cache* in - the specified interval. If it is not defined, and the macro INSN_CACHE_SIZE - is defined, some generic code is generated to clear the cache. The - definition of this macro would typically be a series of `asm' statements. - Both BEG and END are both pointer expressions. */ -/* #define CLEAR_INSN_CACHE (BEG, END) */ - -/* To use a standard subroutine, define the following macro. In addition, you - must make sure that the instructions in a trampoline fill an entire cache - line with identical instructions, or else ensure that the beginning of the - trampoline code is always aligned at the same point in its cache line. Look - in `m68k.h' as a guide. */ - -/* Define this macro if trampolines need a special subroutine to do their work. - The macro should expand to a series of `asm' statements which will be - compiled with GNU CC. They go in a library function named - `__transfer_from_trampoline'. - - If you need to avoid executing the ordinary prologue code of a compiled C - function when you jump to the subroutine, you can do so by placing a special - label of your own in the assembler code. Use one `asm' statement to - generate an assembler label, and another to make the label global. Then - trampolines can use that label to jump directly to your special assembler - code. */ -/* #define TRANSFER_FROM_TRAMPOLINE */ - - -/* Implicit Calls to Library Routines */ - -/* A C string constant giving the name of the function to call for - multiplication of one signed full-word by another. If you do not define - this macro, the default name is used, which is `__mulsi3', a function - defined in `libgcc.a'. */ -/* #define MULSI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for division of - one signed full-word by another. If you do not define this macro, the - default name is used, which is `__divsi3', a function defined in `libgcc.a'. */ -/* #define DIVSI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for division of - one unsigned full-word by another. If you do not define this macro, the - default name is used, which is `__udivsi3', a function defined in - `libgcc.a'. */ -/* #define UDIVSI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for the - remainder in division of one signed full-word by another. If you do not - define this macro, the default name is used, which is `__modsi3', a function - defined in `libgcc.a'. */ -/* #define MODSI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for the - remainder in division of one unsigned full-word by another. If you do not - define this macro, the default name is used, which is `__umodsi3', a - function defined in `libgcc.a'. */ -/* #define UMODSI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for - multiplication of one signed double-word by another. If you do not define - this macro, the default name is used, which is `__muldi3', a function - defined in `libgcc.a'. */ -/* #define MULDI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for division of - one signed double-word by another. If you do not define this macro, the - default name is used, which is `__divdi3', a function defined in `libgcc.a'. */ -/* #define DIVDI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for division of - one unsigned full-word by another. If you do not define this macro, the - default name is used, which is `__udivdi3', a function defined in - `libgcc.a'. */ -/* #define UDIVDI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for the - remainder in division of one signed double-word by another. If you do not - define this macro, the default name is used, which is `__moddi3', a function - defined in `libgcc.a'. */ -/* #define MODDI3_LIBCALL */ - -/* A C string constant giving the name of the function to call for the - remainder in division of one unsigned full-word by another. If you do not - define this macro, the default name is used, which is `__umoddi3', a - function defined in `libgcc.a'. */ -/* #define UMODDI3_LIBCALL */ - -/* Define this macro as a C statement that declares additional library routines - renames existing ones. `init_optabs' calls this macro after initializing all - the normal library routines. */ -/* #define INIT_TARGET_OPTABS */ - -/* The value of `EDOM' on the target machine, as a C integer constant - expression. If you don't define this macro, GNU CC does not attempt to - deposit the value of `EDOM' into `errno' directly. Look in - `/usr/include/errno.h' to find the value of `EDOM' on your system. - - If you do not define `TARGET_EDOM', then compiled code reports domain errors - by calling the library function and letting it report the error. If - mathematical functions on your system use `matherr' when there is an error, - then you should leave `TARGET_EDOM' undefined so that `matherr' is used - normally. */ -/* #define TARGET_EDOM */ - -/* Define this macro as a C expression to create an rtl expression that refers - to the global "variable" `errno'. (On certain systems, `errno' may not - actually be a variable.) If you don't define this macro, a reasonable - default is used. */ -/* #define GEN_ERRNO_RTX */ - -/* Define this macro if GNU CC should generate calls to the System V (and ANSI - C) library functions `memcpy' and `memset' rather than the BSD functions - `bcopy' and `bzero'. - - Defined in svr4.h. */ -/* #define TARGET_MEM_FUNCTIONS */ - -/* Define this macro to generate code for Objective C message sending using the - calling convention of the NeXT system. This calling convention involves - passing the object, the selector and the method arguments all at once to the - method-lookup library function. - - The default calling convention passes just the object and the selector to - the lookup function, which returns a pointer to the method. */ -/* #define NEXT_OBJC_RUNTIME */ - - -/* Addressing Modes */ - -/* Define this macro if the machine supports post-increment addressing. */ -#define HAVE_POST_INCREMENT 1 - -/* Similar for other kinds of addressing. */ -/* #define HAVE_PRE_INCREMENT 0 */ -#define HAVE_POST_DECREMENT 1 -/* #define HAVE_PRE_DECREMENT 0 */ - -/* A C expression that is 1 if the RTX X is a constant which is a valid - address. On most machines, this can be defined as `CONSTANT_P (X)', but a - few machines are more restrictive in which constant addresses are supported. - - `CONSTANT_P' accepts integer-values expressions whose values are not - explicitly known, such as `symbol_ref', `label_ref', and `high' expressions - and `const' arithmetic expressions, in addition to `const_int' and - `const_double' expressions. */ -#define CONSTANT_ADDRESS_P(X) CONSTANT_P (X) - -/* A number, the maximum number of registers that can appear in a valid memory - address. Note that it is up to you to specify a value equal to the maximum - number that `GO_IF_LEGITIMATE_ADDRESS' would ever accept. */ -#define MAX_REGS_PER_ADDRESS 2 - -/* A C compound statement with a conditional `goto LABEL;' executed if X (an - RTX) is a legitimate memory address on the target machine for a memory - operand of mode MODE. - - It usually pays to define several simpler macros to serve as subroutines for - this one. Otherwise it may be too complicated to understand. - - This macro must exist in two variants: a strict variant and a non-strict - one. The strict variant is used in the reload pass. It must be defined so - that any pseudo-register that has not been allocated a hard register is - considered a memory reference. In contexts where some kind of register is - required, a pseudo-register with no hard register must be rejected. - - The non-strict variant is used in other passes. It must be defined to - accept all pseudo-registers in every context where some kind of register is - required. - - Compiler source files that want to use the strict variant of this macro - define the macro `REG_OK_STRICT'. You should use an `#ifdef REG_OK_STRICT' - conditional to define the strict variant in that case and the non-strict - variant otherwise. - - Subroutines to check for acceptable registers for various purposes (one for - base registers, one for index registers, and so on) are typically among the - subroutines used to define `GO_IF_LEGITIMATE_ADDRESS'. Then only these - subroutine macros need have two variants; the higher levels of macros may be - the same whether strict or not. - - Normally, constant addresses which are the sum of a `symbol_ref' and an - integer are stored inside a `const' RTX to mark them as constant. - Therefore, there is no need to recognize such sums specifically as - legitimate addresses. Normally you would simply recognize any `const' as - legitimate. - - Usually `PRINT_OPERAND_ADDRESS' is not prepared to handle constant sums that - are not marked with `const'. It assumes that a naked `plus' indicates - indexing. If so, then you *must* reject such naked constant sums as - illegitimate addresses, so that none of them will be given to - `PRINT_OPERAND_ADDRESS'. - - On some machines, whether a symbolic address is legitimate depends on the - section that the address refers to. On these machines, define the macro - `ENCODE_SECTION_INFO' to store the information into the `symbol_ref', and - then check for it here. When you see a `const', you will have to look - inside it to find the `symbol_ref' in order to determine the section. *Note - Assembler Format::. - - The best way to modify the name string is by adding text to the beginning, - with suitable punctuation to prevent any ambiguity. Allocate the new name - in `saveable_obstack'. You will have to modify `ASM_OUTPUT_LABELREF' to - remove and decode the added text and output the name accordingly, and define - `STRIP_NAME_ENCODING' to access the original name string. - - You can check the information stored here into the `symbol_ref' in the - definitions of the macros `GO_IF_LEGITIMATE_ADDRESS' and - `PRINT_OPERAND_ADDRESS'. */ - -#ifdef REG_OK_STRICT -#define REG_OK_STRICT_P 1 -#else -#define REG_OK_STRICT_P 0 -#endif - -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ -do { \ - if (d30v_legitimate_address_p ((int)MODE, X, REG_OK_STRICT_P)) \ - goto ADDR; \ -} while (0) - -/* A C expression that is nonzero if X (assumed to be a `reg' RTX) is valid for - use as a base register. For hard registers, it should always accept those - which the hardware permits and reject the others. Whether the macro accepts - or rejects pseudo registers must be controlled by `REG_OK_STRICT' as - described above. This usually requires two variant definitions, of which - `REG_OK_STRICT' controls the one actually used. */ - -#ifdef REG_OK_STRICT -#define REG_OK_FOR_BASE_P(X) (GPR_P (REGNO (X))) -#else -#define REG_OK_FOR_BASE_P(X) (GPR_OR_PSEUDO_P (REGNO (X))) -#endif - -/* A C expression that is nonzero if X (assumed to be a `reg' RTX) is valid for - use as an index register. - - The difference between an index register and a base register is that the - index register may be scaled. If an address involves the sum of two - registers, neither one of them scaled, then either one may be labeled the - "base" and the other the "index"; but whichever labeling is used must fit - the machine's constraints of which registers may serve in each capacity. - The compiler will try both labelings, looking for one that is valid, and - will reload one or both registers only if neither labeling works. */ - -#define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X) - -/* A C compound statement that attempts to replace X with a valid memory - address for an operand of mode MODE. WIN will be a C statement label - elsewhere in the code; the macro definition may use - - GO_IF_LEGITIMATE_ADDRESS (MODE, X, WIN); - - to avoid further processing if the address has become legitimate. - - X will always be the result of a call to `break_out_memory_refs', and OLDX - will be the operand that was given to that function to produce X. - - The code generated by this macro should not alter the substructure of X. If - it transforms X into a more legitimate form, it should assign X (which will - always be a C variable) a new value. - - It is not necessary for this macro to come up with a legitimate address. - The compiler has standard ways of doing so in all cases. In fact, it is - safe for this macro to do nothing. But often a machine-dependent strategy - can generate better code. */ - -#define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \ -do { \ - rtx y = d30v_legitimize_address (X, OLDX, (int)MODE, REG_OK_STRICT_P); \ - if (y) \ - { \ - X = y; \ - GO_IF_LEGITIMATE_ADDRESS (MODE, X, WIN); \ - } \ -} while (0) - -/* A C statement or compound statement with a conditional `goto LABEL;' - executed if memory address X (an RTX) can have different meanings depending - on the machine mode of the memory reference it is used for or if the address - is valid for some modes but not others. - - Autoincrement and autodecrement addresses typically have mode-dependent - effects because the amount of the increment or decrement is the size of the - operand being addressed. Some machines have other mode-dependent addresses. - Many RISC machines have no mode-dependent addresses. - - You may assume that ADDR is a valid address for the machine. */ - -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL) \ -do { \ - if (d30v_mode_dependent_address_p (ADDR)) \ - goto LABEL; \ -} while (0) \ - -/* A C expression that is nonzero if X is a legitimate constant for an - immediate operand on the target machine. You can assume that X satisfies - `CONSTANT_P', so you need not check this. In fact, `1' is a suitable - definition for this macro on machines where anything `CONSTANT_P' is valid. */ -#define LEGITIMATE_CONSTANT_P(X) 1 - - -/* Condition Code Status */ - -/* C code for a data type which is used for declaring the `mdep' component of - `cc_status'. It defaults to `int'. - - This macro is not used on machines that do not use `cc0'. */ -/* #define CC_STATUS_MDEP */ - -/* A C expression to initialize the `mdep' field to "empty". The default - definition does nothing, since most machines don't use the field anyway. If - you want to use the field, you should probably define this macro to - initialize it. - - This macro is not used on machines that do not use `cc0'. */ -/* #define CC_STATUS_MDEP_INIT */ - -/* A C compound statement to set the components of `cc_status' appropriately - for an insn INSN whose body is EXP. It is this macro's responsibility to - recognize insns that set the condition code as a byproduct of other activity - as well as those that explicitly set `(cc0)'. - - This macro is not used on machines that do not use `cc0'. - - If there are insns that do not set the condition code but do alter other - machine registers, this macro must check to see whether they invalidate the - expressions that the condition code is recorded as reflecting. For example, - on the 68000, insns that store in address registers do not set the condition - code, which means that usually `NOTICE_UPDATE_CC' can leave `cc_status' - unaltered for such insns. But suppose that the previous insn set the - condition code based on location `a4@(102)' and the current insn stores a - new value in `a4'. Although the condition code is not changed by this, it - will no longer be true that it reflects the contents of `a4@(102)'. - Therefore, `NOTICE_UPDATE_CC' must alter `cc_status' in this case to say - that nothing is known about the condition code value. - - The definition of `NOTICE_UPDATE_CC' must be prepared to deal with the - results of peephole optimization: insns whose patterns are `parallel' RTXs - containing various `reg', `mem' or constants which are just the operands. - The RTL structure of these insns is not sufficient to indicate what the - insns actually do. What `NOTICE_UPDATE_CC' should do when it sees one is - just to run `CC_STATUS_INIT'. - - A possible definition of `NOTICE_UPDATE_CC' is to call a function that looks - at an attribute (*note Insn Attributes::.) named, for example, `cc'. This - avoids having detailed information about patterns in two places, the `md' - file and in `NOTICE_UPDATE_CC'. */ -/* #define NOTICE_UPDATE_CC(EXP, INSN) */ - -/* A list of names to be used for additional modes for condition code values in - registers (*note Jump Patterns::.). These names are added to `enum - machine_mode' and all have class `MODE_CC'. By convention, they should - start with `CC' and end with `mode'. - - You should only define this macro if your machine does not use `cc0' and - only if additional modes are required. */ -/* #define EXTRA_CC_MODES */ - -/* Returns a mode from class `MODE_CC' to be used when comparison operation - code OP is applied to rtx X and Y. For example, on the Sparc, - `SELECT_CC_MODE' is defined as (see *note Jump Patterns::. for a - description of the reason for this definition) - - #define SELECT_CC_MODE(OP,X,Y) \ - (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \ - ? ((OP == EQ || OP == NE) ? CCFPmode : CCFPEmode) \ - : ((GET_CODE (X) == PLUS || GET_CODE (X) == MINUS \ - || GET_CODE (X) == NEG) \ - ? CC_NOOVmode : CCmode)) - - You need not define this macro if `EXTRA_CC_MODES' is not defined. */ -/* #define SELECT_CC_MODE(OP, X, Y) */ - -/* One some machines not all possible comparisons are defined, but you can - convert an invalid comparison into a valid one. For example, the Alpha does - not have a `GT' comparison, but you can use an `LT' comparison instead and - swap the order of the operands. - - On such machines, define this macro to be a C statement to do any required - conversions. CODE is the initial comparison code and OP0 and OP1 are the - left and right operands of the comparison, respectively. You should modify - CODE, OP0, and OP1 as required. - - GNU CC will not assume that the comparison resulting from this macro is - valid but will see if the resulting insn matches a pattern in the `md' file. - - You need not define this macro if it would never change the comparison code - or operands. */ -/* #define CANONICALIZE_COMPARISON(CODE, OP0, OP1) */ - -/* A C expression whose value is one if it is always safe to reverse a - comparison whose mode is MODE. If `SELECT_CC_MODE' can ever return MODE for - a floating-point inequality comparison, then `REVERSIBLE_CC_MODE (MODE)' - must be zero. - - You need not define this macro if it would always returns zero or if the - floating-point format is anything other than `IEEE_FLOAT_FORMAT'. For - example, here is the definition used on the Sparc, where floating-point - inequality comparisons are always given `CCFPEmode': - - #define REVERSIBLE_CC_MODE(MODE) ((MODE) != CCFPEmode) */ -/* #define REVERSIBLE_CC_MODE(MODE) */ - - -/* Describing Relative Costs of Operations */ - -/* A part of a C `switch' statement that describes the relative costs of - constant RTL expressions. It must contain `case' labels for expression - codes `const_int', `const', `symbol_ref', `label_ref' and `const_double'. - Each case must ultimately reach a `return' statement to return the relative - cost of the use of that kind of constant value in an expression. The cost - may depend on the precise value of the constant, which is available for - examination in X, and the rtx code of the expression in which it is - contained, found in OUTER_CODE. - - CODE is the expression code--redundant, since it can be obtained with - `GET_CODE (X)'. */ - -/* On the d30v, consider operatnds that fit in a short instruction very - cheap. However, at this time, it causes cse to generate incorrect - code, so disable it for now. */ -#if 0 -#define CONST_COSTS(X, CODE, OUTER_CODE) \ - case CONST_INT: \ - if (IN_RANGE_P (INTVAL (X), 0, 31)) \ - return 0; \ - else if ((OUTER_CODE) == LEU && (OUTER_CODE) == LTU \ - && (OUTER_CODE) == GEU && (OUTER_CODE) == GTU) \ - return IN_RANGE_P (INTVAL (X), 32, 63) ? 0 : COSTS_N_INSNS (2); \ - else \ - return IN_RANGE_P (INTVAL (X), -31, -1) ? 0 : COSTS_N_INSNS (2); \ - case SYMBOL_REF: \ - case LABEL_REF: \ - case CONST: \ - return COSTS_N_INSNS (2); \ - case CONST_DOUBLE: \ - return COSTS_N_INSNS ((GET_MODE (X) == SFmode) ? 2 : 4); -#else -#define CONST_COSTS(X, CODE, OUTER_CODE) -#endif - -/* Like `CONST_COSTS' but applies to nonconstant RTL expressions. This can be - used, for example, to indicate how costly a multiply instruction is. In - writing this macro, you can use the construct `COSTS_N_INSNS (N)' to specify - a cost equal to N fast instructions. OUTER_CODE is the code of the - expression in which X is contained. - - This macro is optional; do not define it if the default cost assumptions are - adequate for the target machine. */ -#define RTX_COSTS(X, CODE, OUTER_CODE) \ - case MULT: \ - return COSTS_N_INSNS ((GET_CODE (XEXP (x, 1)) == CONST_INT \ - && exact_log2 (INTVAL (XEXP (x, 1))) >= 0) \ - ? 1 : 2); - -/* An expression giving the cost of an addressing mode that contains ADDRESS. - If not defined, the cost is computed from the ADDRESS expression and the - `CONST_COSTS' values. - - For most CISC machines, the default cost is a good approximation of the true - cost of the addressing mode. However, on RISC machines, all instructions - normally have the same length and execution time. Hence all addresses will - have equal costs. - - In cases where more than one form of an address is known, the form with the - lowest cost will be used. If multiple forms have the same, lowest, cost, - the one that is the most complex will be used. - - For example, suppose an address that is equal to the sum of a register and a - constant is used twice in the same basic block. When this macro is not - defined, the address will be computed in a register and memory references - will be indirect through that register. On machines where the cost of the - addressing mode containing the sum is no higher than that of a simple - indirect reference, this will produce an additional instruction and possibly - require an additional register. Proper specification of this macro - eliminates this overhead for such machines. - - Similar use of this macro is made in strength reduction of loops. - - ADDRESS need not be valid as an address. In such a case, the cost is not - relevant and can be any value; invalid addresses need not be assigned a - different cost. - - On machines where an address involving more than one register is as cheap as - an address computation involving only one register, defining `ADDRESS_COST' - to reflect this can cause two registers to be live over a region of code - where only one would have been if `ADDRESS_COST' were not defined in that - manner. This effect should be considered in the definition of this macro. - Equivalent costs should probably only be given to addresses with different - numbers of registers on machines with lots of registers. - - This macro will normally either not be defined or be defined as a constant. */ -#define ADDRESS_COST(ADDRESS) 0 - -/* A C expression for the cost of moving data from a register in class FROM to - one in class TO. The classes are expressed using the enumeration values - such as `GENERAL_REGS'. A value of 4 is the default; other values are - interpreted relative to that. - - It is not required that the cost always equal 2 when FROM is the same as TO; - on some machines it is expensive to move between registers if they are not - general registers. - - If reload sees an insn consisting of a single `set' between two hard - registers, and if `REGISTER_MOVE_COST' applied to their classes returns a - value of 2, reload does not check to ensure that the constraints of the insn - are met. Setting a cost of other than 2 will allow reload to verify that - the constraints are met. You should do this if the `movM' pattern's - constraints do not allow such copying. */ - -#define REGISTER_MOVE_COST(MODE, FROM, TO) \ - (((FROM) != GPR_REGS && (FROM) != EVEN_REGS \ - && (TO) != GPR_REGS && (TO) != EVEN_REGS) ? 4 : 2) - -/* A C expression for the cost of moving data of mode M between a register and - memory. A value of 2 is the default; this cost is relative to those in - `REGISTER_MOVE_COST'. - - If moving between registers and memory is more expensive than between two - registers, you should define this macro to express the relative cost. */ -#define MEMORY_MOVE_COST(M,C,I) 4 - -/* A C expression for the cost of a branch instruction. A value of 1 is the - default; other values are interpreted relative to that. */ - -#define BRANCH_COST d30v_branch_cost - -#define D30V_DEFAULT_BRANCH_COST 2 - -/* Values of the -mbranch-cost=n string. */ -extern int d30v_branch_cost; -extern const char *d30v_branch_cost_string; - -/* Here are additional macros which do not specify precise relative costs, but - only that certain actions are more expensive than GNU CC would ordinarily - expect. */ - -/* Define this macro as a C expression which is nonzero if accessing less than - a word of memory (i.e. a `char' or a `short') is no faster than accessing a - word of memory, i.e., if such access require more than one instruction or if - there is no difference in cost between byte and (aligned) word loads. - - When this macro is not defined, the compiler will access a field by finding - the smallest containing object; when it is defined, a fullword load will be - used if alignment permits. Unless bytes accesses are faster than word - accesses, using word accesses is preferable since it may eliminate - subsequent memory access if subsequent accesses occur to other fields in the - same word of the structure, but to different bytes. */ -#define SLOW_BYTE_ACCESS 1 - -/* Define this macro to be the value 1 if unaligned accesses have a cost many - times greater than aligned accesses, for example if they are emulated in a - trap handler. - - When this macro is non-zero, the compiler will act as if `STRICT_ALIGNMENT' - were non-zero when generating code for block moves. This can cause - significantly more instructions to be produced. Therefore, do not set this - macro non-zero if unaligned accesses only add a cycle or two to the time for - a memory access. - - If the value of this macro is always zero, it need not be defined. */ -/* #define SLOW_UNALIGNED_ACCESS */ - -/* Define this macro to inhibit strength reduction of memory addresses. (On - some machines, such strength reduction seems to do harm rather than good.) */ -/* #define DONT_REDUCE_ADDR */ - -/* The number of scalar move insns which should be generated instead of a - string move insn or a library call. Increasing the value will always make - code faster, but eventually incurs high cost in increased code size. - - If you don't define this, a reasonable default is used. */ -/* #define MOVE_RATIO */ - -/* Define this macro if it is as good or better to call a constant function - address than to call an address kept in a register. */ -#define NO_FUNCTION_CSE - -/* Define this macro if it is as good or better for a function to call itself - with an explicit address than to call an address kept in a register. */ -/* #define NO_RECURSIVE_FUNCTION_CSE */ - - -/* Dividing the output into sections. */ - -/* A C expression whose value is a string containing the assembler operation - that should precede instructions and read-only data. Normally `".text"' is - right. */ -#define TEXT_SECTION_ASM_OP "\t.text" - -/* A C expression whose value is a string containing the assembler operation to - identify the following data as writable initialized data. Normally - `".data"' is right. */ -#define DATA_SECTION_ASM_OP "\t.data" - -/* if defined, a C expression whose value is a string containing the assembler - operation to identify the following data as shared data. If not defined, - `DATA_SECTION_ASM_OP' will be used. */ -/* #define SHARED_SECTION_ASM_OP */ - -/* If defined, a C expression whose value is a string containing the - assembler operation to identify the following data as - uninitialized global data. If not defined, and neither - `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined, - uninitialized global data will be output in the data section if - `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be - used. */ -#define BSS_SECTION_ASM_OP "\t.bss" - -/* If defined, a C expression whose value is a string containing the - assembler operation to identify the following data as - uninitialized global shared data. If not defined, and - `BSS_SECTION_ASM_OP' is, the latter will be used. */ -/* #define SHARED_BSS_SECTION_ASM_OP */ - -/* A list of names for sections other than the standard two, which are - `in_text' and `in_data'. You need not define this macro on a system with no - other sections (that GCC needs to use). - - Defined in svr4.h. */ -/* #define EXTRA_SECTIONS */ - -/* One or more functions to be defined in `varasm.c'. These functions should - do jobs analogous to those of `text_section' and `data_section', for your - additional sections. Do not define this macro if you do not define - `EXTRA_SECTIONS'. - - Defined in svr4.h. */ -/* #define EXTRA_SECTION_FUNCTIONS */ - -/* On most machines, read-only variables, constants, and jump tables are placed - in the text section. If this is not the case on your machine, this macro - should be defined to be the name of a function (either `data_section' or a - function defined in `EXTRA_SECTIONS') that switches to the section to be - used for read-only items. - - If these items should be placed in the text section, this macro should not - be defined. */ -/* #define READONLY_DATA_SECTION */ - -/* A C statement or statements to switch to the appropriate section for output - of EXP. You can assume that EXP is either a `VAR_DECL' node or a constant - of some sort. RELOC indicates whether the initial value of EXP requires - link-time relocations. Select the section by calling `text_section' or one - of the alternatives for other sections. - - Do not define this macro if you put all read-only variables and constants in - the read-only data section (usually the text section). - - Defined in svr4.h. */ -/* #define SELECT_SECTION(EXP, RELOC, ALIGN) */ - -/* A C statement or statements to switch to the appropriate section for output - of RTX in mode MODE. You can assume that RTX is some kind of constant in - RTL. The argument MODE is redundant except in the case of a `const_int' - rtx. Select the section by calling `text_section' or one of the - alternatives for other sections. - - Do not define this macro if you put all constants in the read-only data - section. - - Defined in svr4.h. */ -/* #define SELECT_RTX_SECTION(MODE, RTX, ALIGN) */ - -/* Define this macro if jump tables (for `tablejump' insns) should be output in - the text section, along with the assembler instructions. Otherwise, the - readonly data section is used. - - This macro is irrelevant if there is no separate readonly data section. */ -/* #define JUMP_TABLES_IN_TEXT_SECTION */ - -/* Define this macro if references to a symbol must be treated differently - depending on something about the variable or function named by the symbol - (such as what section it is in). - - The macro definition, if any, is executed immediately after the rtl for DECL - has been created and stored in `DECL_RTL (DECL)'. The value of the rtl will - be a `mem' whose address is a `symbol_ref'. - - The usual thing for this macro to do is to record a flag in the `symbol_ref' - (such as `SYMBOL_REF_FLAG') or to store a modified name string in the - `symbol_ref' (if one bit is not enough information). */ -/* #define ENCODE_SECTION_INFO(DECL) */ - -/* Decode SYM_NAME and store the real name part in VAR, sans the characters - that encode section info. Define this macro if `ENCODE_SECTION_INFO' alters - the symbol's name string. */ -/* #define STRIP_NAME_ENCODING(VAR, SYM_NAME) */ - -/* A C statement to build up a unique section name, expressed as a - STRING_CST node, and assign it to `DECL_SECTION_NAME (DECL)'. - RELOC indicates whether the initial value of EXP requires - link-time relocations. If you do not define this macro, GNU CC - will use the symbol name prefixed by `.' as the section name. - - Defined in svr4.h. */ -/* #define UNIQUE_SECTION(DECL, RELOC) */ - - -/* Position Independent Code. */ - -/* The register number of the register used to address a table of static data - addresses in memory. In some cases this register is defined by a - processor's "application binary interface" (ABI). When this macro is - defined, RTL is generated for this register once, as with the stack pointer - and frame pointer registers. If this macro is not defined, it is up to the - machine-dependent files to allocate such a register (if necessary). */ -/* #define PIC_OFFSET_TABLE_REGNUM */ - -/* Define this macro if the register defined by `PIC_OFFSET_TABLE_REGNUM' is - clobbered by calls. Do not define this macro if `PIC_OFFSET_TABLE_REGNUM' - is not defined. */ -/* #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED */ - -/* By generating position-independent code, when two different programs (A and - B) share a common library (libC.a), the text of the library can be shared - whether or not the library is linked at the same address for both programs. - In some of these environments, position-independent code requires not only - the use of different addressing modes, but also special code to enable the - use of these addressing modes. - - The `FINALIZE_PIC' macro serves as a hook to emit these special codes once - the function is being compiled into assembly code, but not before. (It is - not done before, because in the case of compiling an inline function, it - would lead to multiple PIC prologues being included in functions which used - inline functions and were compiled to assembly language.) */ -/* #define FINALIZE_PIC */ - -/* A C expression that is nonzero if X is a legitimate immediate operand on the - target machine when generating position independent code. You can assume - that X satisfies `CONSTANT_P', so you need not check this. You can also - assume FLAG_PIC is true, so you need not check it either. You need not - define this macro if all constants (including `SYMBOL_REF') can be immediate - operands when generating position independent code. */ -/* #define LEGITIMATE_PIC_OPERAND_P(X) */ - - -/* The Overall Framework of an Assembler File. */ - -/* A C expression which outputs to the stdio stream STREAM some appropriate - text to go at the start of an assembler file. - - Normally this macro is defined to output a line containing `#NO_APP', which - is a comment that has no effect on most assemblers but tells the GNU - assembler that it can save time by not checking for certain assembler - constructs. - - On systems that use SDB, it is necessary to output certain commands; see - `attasm.h'. - - Defined in svr4.h. */ - -/* #define ASM_FILE_START(STREAM) \ - output_file_directive ((STREAM), main_input_filename) */ - -/* A C expression which outputs to the stdio stream STREAM some appropriate - text to go at the end of an assembler file. - - If this macro is not defined, the default is to output nothing special at - the end of the file. Most systems don't require any definition. - - On systems that use SDB, it is necessary to output certain commands; see - `attasm.h'. - - Defined in svr4.h. */ -/* #define ASM_FILE_END(STREAM) */ - -/* A C string constant describing how to begin a comment in the target - assembler language. The compiler assumes that the comment will end at the - end of the line. */ -#define ASM_COMMENT_START ";" - -/* A C string constant for text to be output before each `asm' statement or - group of consecutive ones. Normally this is `"#APP"', which is a comment - that has no effect on most assemblers but tells the GNU assembler that it - must check the lines that follow for all valid assembler constructs. */ -#define ASM_APP_ON "#APP\n" - -/* A C string constant for text to be output after each `asm' statement or - group of consecutive ones. Normally this is `"#NO_APP"', which tells the - GNU assembler to resume making the time-saving assumptions that are valid - for ordinary compiler output. */ -#define ASM_APP_OFF "#NO_APP\n" - -/* A C statement to output COFF information or DWARF debugging information - which indicates that filename NAME is the current source file to the stdio - stream STREAM. - - This macro need not be defined if the standard form of output for the file - format in use is appropriate. */ -/* #define ASM_OUTPUT_SOURCE_FILENAME(STREAM, NAME) */ - -/* A C statement to output DBX or SDB debugging information before code for - line number LINE of the current source file to the stdio stream STREAM. - - This macro need not be defined if the standard form of debugging information - for the debugger in use is appropriate. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) */ - -/* A C statement to output something to the assembler file to handle a `#ident' - directive containing the text STRING. If this macro is not defined, nothing - is output for a `#ident' directive. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_IDENT(STREAM, STRING) */ - -/* A C statement to output any assembler statements which are required to - precede any Objective C object definitions or message sending. The - statement is executed only when compiling an Objective C program. */ -/* #define OBJC_PROLOGUE */ - - -/* Output of Data. */ - -/* A C statement to output to the stdio stream STREAM an assembler instruction - to assemble a string constant containing the LEN bytes at PTR. PTR will be - a C expression of type `char *' and LEN a C expression of type `int'. - - If the assembler has a `.ascii' pseudo-op as found in the Berkeley Unix - assembler, do not define the macro `ASM_OUTPUT_ASCII'. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) */ - -/* You may define this macro as a C expression. You should define the - expression to have a non-zero value if GNU CC should output the - constant pool for a function before the code for the function, or - a zero value if GNU CC should output the constant pool after the - function. If you do not define this macro, the usual case, GNU CC - will output the constant pool before the function. */ -/* #define CONSTANT_POOL_BEFORE_FUNCTION */ - -/* A C statement to output assembler commands to define the start of the - constant pool for a function. FUNNAME is a string giving the name of the - function. Should the return type of the function be required, it can be - obtained via FUNDECL. SIZE is the size, in bytes, of the constant pool that - will be written immediately after this call. - - If no constant-pool prefix is required, the usual case, this macro need not - be defined. */ -/* #define ASM_OUTPUT_POOL_PROLOGUE(FILE FUNNAME FUNDECL SIZE) */ - -/* A C statement (with or without semicolon) to output a constant in the - constant pool, if it needs special treatment. (This macro need not do - anything for RTL expressions that can be output normally.) - - The argument FILE is the standard I/O stream to output the assembler code - on. X is the RTL expression for the constant to output, and MODE is the - machine mode (in case X is a `const_int'). ALIGN is the required alignment - for the value X; you should output an assembler directive to force this much - alignment. - - The argument LABELNO is a number to use in an internal label for the address - of this pool entry. The definition of this macro is responsible for - outputting the label definition at the proper place. Here is how to do - this: - - ASM_OUTPUT_INTERNAL_LABEL (FILE, "LC", LABELNO); - - When you output a pool entry specially, you should end with a `goto' to the - label JUMPTO. This will prevent the same pool entry from being output a - second time in the usual manner. - - You need not define this macro if it would do nothing. */ -/* #define ASM_OUTPUT_SPECIAL_POOL_ENTRY(FILE, X, MODE, ALIGN, LABELNO, JUMPTO) */ - -/* Define this macro as a C expression which is nonzero if the constant EXP, of - type `tree', should be output after the code for a function. The compiler - will normally output all constants before the function; you need not define - this macro if this is OK. */ -/* #define CONSTANT_AFTER_FUNCTION_P(EXP) */ - -/* A C statement to output assembler commands to at the end of the constant - pool for a function. FUNNAME is a string giving the name of the function. - Should the return type of the function be required, you can obtain it via - FUNDECL. SIZE is the size, in bytes, of the constant pool that GNU CC wrote - immediately before this call. - - If no constant-pool epilogue is required, the usual case, you need not - define this macro. */ -/* #define ASM_OUTPUT_POOL_EPILOGUE (FILE FUNNAME FUNDECL SIZE) */ - -/* Define this macro as a C expression which is nonzero if C is used as a - logical line separator by the assembler. - - If you do not define this macro, the default is that only the character `;' - is treated as a logical line separator. */ -/* #define IS_ASM_LOGICAL_LINE_SEPARATOR(C) */ - -/* These macros are provided by `real.h' for writing the definitions of - `ASM_OUTPUT_DOUBLE' and the like: */ - -/* These translate X, of type `REAL_VALUE_TYPE', to the target's floating point - representation, and store its bit pattern in the array of `long int' whose - address is L. The number of elements in the output array is determined by - the size of the desired target floating point data type: 32 bits of it go in - each `long int' array element. Each array element holds 32 bits of the - result, even if `long int' is wider than 32 bits on the host machine. - - The array element values are designed so that you can print them out using - `fprintf' in the order they should appear in the target machine's memory. */ -/* #define REAL_VALUE_TO_TARGET_SINGLE(X, L) */ -/* #define REAL_VALUE_TO_TARGET_DOUBLE(X, L) */ -/* #define REAL_VALUE_TO_TARGET_LONG_DOUBLE(X, L) */ - -/* This macro converts X, of type `REAL_VALUE_TYPE', to a decimal number and - stores it as a string into STRING. You must pass, as STRING, the address of - a long enough block of space to hold the result. - - The argument FORMAT is a `printf'-specification that serves as a suggestion - for how to format the output string. */ -/* #define REAL_VALUE_TO_DECIMAL(X, FORMAT, STRING) */ - - -/* Output of Uninitialized Variables. */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM the - assembler definition of a common-label named NAME whose size is SIZE bytes. - The variable ROUNDED is the size rounded up to whatever alignment the caller - wants. - - Use the expression `assemble_name (STREAM, NAME)' to output the name itself; - before and after that, output the additional assembler syntax for defining - the name, and a newline. - - This macro controls how the assembler definitions of uninitialized global - variables are output. */ -/* #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) */ - -/* Like `ASM_OUTPUT_COMMON' except takes the required alignment as a separate, - explicit argument. If you define this macro, it is used in place of - `ASM_OUTPUT_COMMON', and gives you more flexibility in handling the required - alignment of the variable. The alignment is specified as the number of - bits. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_ALIGNED_COMMON(STREAM, NAME, SIZE, ALIGNMENT) */ - -/* Like ASM_OUTPUT_ALIGNED_COMMON except that it takes an additional argument - - the DECL of the variable to be output, if there is one. This macro can be - called with DECL == NULL_TREE. If you define this macro, it is used in - place of both ASM_OUTPUT_COMMON and ASM_OUTPUT_ALIGNED_COMMON, and gives you - more flexibility in handling the destination of the variable. */ -/* #define ASM_OUTPUT_DECL_COMMON (STREAM, DECL, NAME, SIZE, ALIGNMENT) */ - -/* If defined, it is similar to `ASM_OUTPUT_COMMON', except that it is used - when NAME is shared. If not defined, `ASM_OUTPUT_COMMON' will be used. */ -/* #define ASM_OUTPUT_SHARED_COMMON(STREAM, NAME, SIZE, ROUNDED) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM the - assembler definition of uninitialized global DECL named NAME whose size is - SIZE bytes. The variable ROUNDED is the size rounded up to whatever - alignment the caller wants. - - Try to use function `asm_output_bss' defined in `varasm.c' when defining - this macro. If unable, use the expression `assemble_name (STREAM, NAME)' to - output the name itself; before and after that, output the additional - assembler syntax for defining the name, and a newline. - - This macro controls how the assembler definitions of uninitialized global - variables are output. This macro exists to properly support languages like - `c++' which do not have `common' data. However, this macro currently is not - defined for all targets. If this macro and `ASM_OUTPUT_ALIGNED_BSS' are not - defined then `ASM_OUTPUT_COMMON' or `ASM_OUTPUT_ALIGNED_COMMON' or - `ASM_OUTPUT_DECL_COMMON' is used. */ -/* #define ASM_OUTPUT_BSS(STREAM, DECL, NAME, SIZE, ROUNDED) */ - -/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a separate, - explicit argument. If you define this macro, it is used in place of - `ASM_OUTPUT_BSS', and gives you more flexibility in handling the required - alignment of the variable. The alignment is specified as the number of - bits. - - Try to use function `asm_output_aligned_bss' defined in file `varasm.c' when - defining this macro. */ -/* #define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGNMENT) */ - -/* If defined, it is similar to `ASM_OUTPUT_BSS', except that it is used when - NAME is shared. If not defined, `ASM_OUTPUT_BSS' will be used. */ -/* #define ASM_OUTPUT_SHARED_BSS(STREAM, DECL, NAME, SIZE, ROUNDED) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM the - assembler definition of a local-common-label named NAME whose size is SIZE - bytes. The variable ROUNDED is the size rounded up to whatever alignment - the caller wants. - - Use the expression `assemble_name (STREAM, NAME)' to output the name itself; - before and after that, output the additional assembler syntax for defining - the name, and a newline. - - This macro controls how the assembler definitions of uninitialized static - variables are output. */ -/* #define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED) */ - -/* Like `ASM_OUTPUT_LOCAL' except takes the required alignment as a separate, - explicit argument. If you define this macro, it is used in place of - `ASM_OUTPUT_LOCAL', and gives you more flexibility in handling the required - alignment of the variable. The alignment is specified as the number of - bits. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGNMENT) */ - -/* Like `ASM_OUTPUT_ALIGNED_LOCAL' except that it takes an additional - parameter - the DECL of variable to be output, if there is one. - This macro can be called with DECL == NULL_TREE. If you define - this macro, it is used in place of `ASM_OUTPUT_LOCAL' and - `ASM_OUTPUT_ALIGNED_LOCAL', and gives you more flexibility in - handling the destination of the variable. */ -/* #define ASM_OUTPUT_DECL_LOCAL(STREAM, DECL, NAME, SIZE, ALIGNMENT) */ - -/* If defined, it is similar to `ASM_OUTPUT_LOCAL', except that it is used when - NAME is shared. If not defined, `ASM_OUTPUT_LOCAL' will be used. */ -/* #define ASM_OUTPUT_SHARED_LOCAL (STREAM, NAME, SIZE, ROUNDED) */ - - -/* Output and Generation of Labels. */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM the - assembler definition of a label named NAME. Use the expression - `assemble_name (STREAM, NAME)' to output the name itself; before and after - that, output the additional assembler syntax for defining the name, and a - newline. */ - -#define ASM_OUTPUT_LABEL(STREAM, NAME) \ -do { \ - assemble_name (STREAM, NAME); \ - fputs (":\n", STREAM); \ -} while (0) - -/* A C statement (sans semicolon) to output to the stdio stream STREAM any text - necessary for declaring the name NAME of a function which is being defined. - This macro is responsible for outputting the label definition (perhaps using - `ASM_OUTPUT_LABEL'). The argument DECL is the `FUNCTION_DECL' tree node - representing the function. - - If this macro is not defined, then the function name is defined in the usual - manner as a label (by means of `ASM_OUTPUT_LABEL'). - - Defined in svr4.h. */ -/* #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM any text - necessary for declaring the size of a function which is being defined. The - argument NAME is the name of the function. The argument DECL is the - `FUNCTION_DECL' tree node representing the function. - - If this macro is not defined, then the function size is not defined. - - Defined in svr4.h. */ -/* #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM any text - necessary for declaring the name NAME of an initialized variable which is - being defined. This macro must output the label definition (perhaps using - `ASM_OUTPUT_LABEL'). The argument DECL is the `VAR_DECL' tree node - representing the variable. - - If this macro is not defined, then the variable name is defined in the usual - manner as a label (by means of `ASM_OUTPUT_LABEL'). - - Defined in svr4.h. */ -/* #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) */ - -/* A C statement (sans semicolon) to finish up declaring a variable name once - the compiler has processed its initializer fully and thus has had a chance - to determine the size of an array when controlled by an initializer. This - is used on systems where it's necessary to declare something about the size - of the object. - - If you don't define this macro, that is equivalent to defining it to do - nothing. - - Defined in svr4.h. */ -/* #define ASM_FINISH_DECLARE_OBJECT(STREAM, DECL, TOPLEVEL, ATEND) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM some - commands that will make the label NAME global; that is, available for - reference from other files. Use the expression `assemble_name (STREAM, - NAME)' to output the name itself; before and after that, output the - additional assembler syntax for making that name global, and a newline. */ - -#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \ -do { \ - fputs ("\t.globl ", STREAM); \ - assemble_name (STREAM, NAME); \ - fputs ("\n", STREAM); \ -} while (0) - -/* A C statement (sans semicolon) to output to the stdio stream STREAM some - commands that will make the label NAME weak; that is, available for - reference from other files but only used if no other definition is - available. Use the expression `assemble_name (STREAM, NAME)' to output the - name itself; before and after that, output the additional assembler syntax - for making that name weak, and a newline. - - If you don't define this macro, GNU CC will not support weak symbols and you - should not define the `SUPPORTS_WEAK' macro. - - Defined in svr4.h. */ -/* #define ASM_WEAKEN_LABEL */ - -/* A C expression which evaluates to true if the target supports weak symbols. - - If you don't define this macro, `defaults.h' provides a default definition. - If `ASM_WEAKEN_LABEL' is defined, the default definition is `1'; otherwise, - it is `0'. Define this macro if you want to control weak symbol support - with a compiler flag such as `-melf'. */ -/* #define SUPPORTS_WEAK */ - -/* A C statement (sans semicolon) to mark DECL to be emitted as a - public symbol such that extra copies in multiple translation units - will be discarded by the linker. Define this macro if your object - file format provides support for this concept, such as the `COMDAT' - section flags in the Microsoft Windows PE/COFF format, and this - support requires changes to DECL, such as putting it in a separate - section. - - Defined in svr4.h. */ -/* #define MAKE_DECL_ONE_ONLY */ - -/* A C expression which evaluates to true if the target supports one-only - semantics. - - If you don't define this macro, `varasm.c' provides a default definition. - If `MAKE_DECL_ONE_ONLY' is defined, the default definition is `1'; - otherwise, it is `0'. Define this macro if you want to control one-only - symbol support with a compiler flag, or if setting the `DECL_ONE_ONLY' flag - is enough to mark a declaration to be emitted as one-only. */ -/* #define SUPPORTS_ONE_ONLY */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM any text - necessary for declaring the name of an external symbol named NAME which is - referenced in this compilation but not defined. The value of DECL is the - tree node for the declaration. - - This macro need not be defined if it does not need to output anything. The - GNU assembler and most Unix assemblers don't require anything. */ -/* #define ASM_OUTPUT_EXTERNAL(STREAM, DECL, NAME) */ - -/* A C statement (sans semicolon) to output on STREAM an assembler pseudo-op to - declare a library function name external. The name of the library function - is given by SYMREF, which has type `rtx' and is a `symbol_ref'. - - This macro need not be defined if it does not need to output anything. The - GNU assembler and most Unix assemblers don't require anything. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_EXTERNAL_LIBCALL(STREAM, SYMREF) */ - -/* A C statement (sans semicolon) to output to the stdio stream STREAM a - reference in assembler syntax to a label named NAME. This should add `_' to - the front of the name, if that is customary on your operating system, as it - is in most Berkeley Unix systems. This macro is used in `assemble_name'. */ -/* #define ASM_OUTPUT_LABELREF(STREAM, NAME) */ - -/* A C statement to output to the stdio stream STREAM a label whose name is - made from the string PREFIX and the number NUM. - - It is absolutely essential that these labels be distinct from the labels - used for user-level functions and variables. Otherwise, certain programs - will have name conflicts with internal labels. - - It is desirable to exclude internal labels from the symbol table of the - object file. Most assemblers have a naming convention for labels that - should be excluded; on many systems, the letter `L' at the beginning of a - label has this effect. You should find out what convention your system - uses, and follow it. - - The usual definition of this macro is as follows: - - fprintf (STREAM, "L%s%d:\n", PREFIX, NUM) - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_INTERNAL_LABEL(STREAM, PREFIX, NUM) */ - -/* A C statement to store into the string STRING a label whose name is made - from the string PREFIX and the number NUM. - - This string, when output subsequently by `assemble_name', should produce the - output that `ASM_OUTPUT_INTERNAL_LABEL' would produce with the same PREFIX - and NUM. - - If the string begins with `*', then `assemble_name' will output the rest of - the string unchanged. It is often convenient for - `ASM_GENERATE_INTERNAL_LABEL' to use `*' in this way. If the string doesn't - start with `*', then `ASM_OUTPUT_LABELREF' gets to output the string, and - may change it. (Of course, `ASM_OUTPUT_LABELREF' is also part of your - machine description, so you should know what it does on your machine.) - - Defined in svr4.h. */ - -/* -#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \ -do { \ - sprintf (LABEL, "*.%s%d", PREFIX, NUM); \ -} while (0) -*/ - -/* A C expression to assign to OUTVAR (which is a variable of type `char *') a - newly allocated string made from the string NAME and the number NUMBER, with - some suitable punctuation added. Use `alloca' to get space for the string. - - The string will be used as an argument to `ASM_OUTPUT_LABELREF' to produce - an assembler label for an internal static variable whose name is NAME. - Therefore, the string must be such as to result in valid assembler code. - The argument NUMBER is different each time this macro is executed; it - prevents conflicts between similarly-named internal static variables in - different scopes. - - Ideally this string should not be a valid C identifier, to prevent any - conflict with the user's own symbols. Most assemblers allow periods or - percent signs in assembler symbols; putting at least one of these between - the name and the number will suffice. */ - -#define ASM_FORMAT_PRIVATE_NAME(OUTVAR, NAME, NUMBER) \ -do { \ - (OUTVAR) = (char *) alloca (strlen ((NAME)) + 12); \ - sprintf ((OUTVAR), "%s.%ld", (NAME), (long)(NUMBER)); \ -} while (0) - -/* A C statement to output to the stdio stream STREAM assembler code which - defines (equates) the symbol NAME to have the value VALUE. - - If SET_ASM_OP is defined, a default definition is provided which is correct - for most systems. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_DEF(STREAM, NAME, VALUE) */ - -/* A C statement to output to the stdio stream STREAM assembler code which - defines (equates) the weak symbol NAME to have the value VALUE. - - Define this macro if the target only supports weak aliases; define - ASM_OUTPUT_DEF instead if possible. */ -/* #define ASM_OUTPUT_WEAK_ALIAS (STREAM, NAME, VALUE) */ - -/* Define this macro to override the default assembler names used for Objective - C methods. - - The default name is a unique method number followed by the name of the class - (e.g. `_1_Foo'). For methods in categories, the name of the category is - also included in the assembler name (e.g. `_1_Foo_Bar'). - - These names are safe on most systems, but make debugging difficult since the - method's selector is not present in the name. Therefore, particular systems - define other ways of computing names. - - BUF is an expression of type `char *' which gives you a buffer in which to - store the name; its length is as long as CLASS_NAME, CAT_NAME and SEL_NAME - put together, plus 50 characters extra. - - The argument IS_INST specifies whether the method is an instance method or a - class method; CLASS_NAME is the name of the class; CAT_NAME is the name of - the category (or NULL if the method is not in a category); and SEL_NAME is - the name of the selector. - - On systems where the assembler can handle quoted names, you can use this - macro to provide more human-readable names. */ -/* #define OBJC_GEN_METHOD_LABEL(BUF, IS_INST, CLASS_NAME, CAT_NAME, SEL_NAME) */ - - -/* Macros Controlling Initialization Routines. */ - -/* If defined, a C string constant for the assembler operation to identify the - following data as initialization code. If not defined, GNU CC will assume - such a section does not exist. When you are using special sections for - initialization and termination functions, this macro also controls how - `crtstuff.c' and `libgcc2.c' arrange to run the initialization functions. - - Defined in svr4.h. */ -/* #define INIT_SECTION_ASM_OP */ - -/* If defined, `main' will not call `__main' as described above. This macro - should be defined for systems that control the contents of the init section - on a symbol-by-symbol basis, such as OSF/1, and should not be defined - explicitly for systems that support `INIT_SECTION_ASM_OP'. */ -/* #define HAS_INIT_SECTION */ - -/* If defined, a C string constant for a switch that tells the linker that the - following symbol is an initialization routine. */ -/* #define LD_INIT_SWITCH */ - -/* If defined, a C string constant for a switch that tells the linker that the - following symbol is a finalization routine. */ -/* #define LD_FINI_SWITCH */ - -/* If defined, `main' will call `__main' despite the presence of - `INIT_SECTION_ASM_OP'. This macro should be defined for systems where the - init section is not actually run automatically, but is still useful for - collecting the lists of constructors and destructors. */ -#define INVOKE__main - -/* If your system uses `collect2' as the means of processing constructors, then - that program normally uses `nm' to scan an object file for constructor - functions to be called. On certain kinds of systems, you can define these - macros to make `collect2' work faster (and, in some cases, make it work at - all): */ - -/* Define this macro if the system uses COFF (Common Object File Format) object - files, so that `collect2' can assume this format and scan object files - directly for dynamic constructor/destructor functions. */ -/* #define OBJECT_FORMAT_COFF */ - -/* Define this macro if the system uses ROSE format object files, so that - `collect2' can assume this format and scan object files directly for dynamic - constructor/destructor functions. - - These macros are effective only in a native compiler; `collect2' as - part of a cross compiler always uses `nm' for the target machine. */ -/* #define OBJECT_FORMAT_ROSE */ - -/* Define this macro if the system uses ELF format object files. - - Defined in svr4.h. */ -/* #define OBJECT_FORMAT_ELF */ - -/* Define this macro as a C string constant containing the file name to use to - execute `nm'. The default is to search the path normally for `nm'. - - If your system supports shared libraries and has a program to list the - dynamic dependencies of a given library or executable, you can define these - macros to enable support for running initialization and termination - functions in shared libraries: */ -/* #define REAL_NM_FILE_NAME */ - -/* Define this macro to a C string constant containing the name of the program - which lists dynamic dependencies, like `"ldd"' under SunOS 4. */ -/* #define LDD_SUFFIX */ - -/* Define this macro to be C code that extracts filenames from the output of - the program denoted by `LDD_SUFFIX'. PTR is a variable of type `char *' - that points to the beginning of a line of output from `LDD_SUFFIX'. If the - line lists a dynamic dependency, the code must advance PTR to the beginning - of the filename on that line. Otherwise, it must set PTR to `NULL'. */ -/* #define PARSE_LDD_OUTPUT (PTR) */ - - -/* Output of Assembler Instructions. */ - -/* A C initializer containing the assembler's names for the machine registers, - each one as a C string constant. This is what translates register numbers - in the compiler into assembler language. */ -#define REGISTER_NAMES \ -{ \ - "r0", "r1", "r2", "r3", \ - "r4", "r5", "r6", "r7", \ - "r8", "r9", "r10", "r11", \ - "r12", "r13", "r14", "r15", \ - "r16", "r17", "r18", "r19", \ - "r20", "r21", "r22", "r23", \ - "r24", "r25", "r26", "r27", \ - "r28", "r29", "r30", "r31", \ - "r32", "r33", "r34", "r35", \ - "r36", "r37", "r38", "r39", \ - "r40", "r41", "r42", "r43", \ - "r44", "r45", "r46", "r47", \ - "r48", "r49", "r50", "r51", \ - "r52", "r53", "r54", "r55", \ - "r56", "r57", "r58", "r59", \ - "r60", "r61", "link", "sp", \ - "ap", \ - "f0", "f1", "f2", "f3", \ - "s", "v", "va", "c", \ - "a0", "a1", \ - "psw", "bpsw", "pc", "bpc", \ - "dpsw", "dpc", "rpt_c", "rpt_s", \ - "rpt_e", "mod_s", "mod_e", "iba", \ - "eit_vb", "int_s", "int_m", \ -} - -/* If defined, a C initializer for an array of structures containing a name and - a register number. This macro defines additional names for hard registers, - thus allowing the `asm' option in declarations to refer to registers using - alternate names. */ -#define ADDITIONAL_REGISTER_NAMES \ -{ \ - {"r62", GPR_LINK}, \ - {"r63", GPR_SP}, \ - {"f4", FLAG_SAT}, \ - {"f5", FLAG_OVERFLOW}, \ - {"f6", FLAG_ACC_OVER}, \ - {"f7", FLAG_CARRY}, \ - {"carry", FLAG_CARRY}, \ - {"borrow", FLAG_BORROW}, \ - {"b", FLAG_BORROW}, \ - {"cr0", CR_PSW}, \ - {"cr1", CR_BPSW}, \ - {"cr2", CR_PC}, \ - {"cr3", CR_BPC}, \ - {"cr4", CR_DPSW}, \ - {"cr5", CR_DPC}, \ - {"cr7", CR_RPT_C}, \ - {"cr8", CR_RPT_S}, \ - {"cr9", CR_RPT_E}, \ - {"cr10", CR_MOD_S}, \ - {"cr11", CR_MOD_E}, \ - {"cr14", CR_IBA}, \ - {"cr15", CR_EIT_VB}, \ - {"cr16", CR_INT_S}, \ - {"cr17", CR_INT_M} \ -} - -/* Define this macro if you are using an unusual assembler that requires - different names for the machine instructions. - - The definition is a C statement or statements which output an assembler - instruction opcode to the stdio stream STREAM. The macro-operand PTR is a - variable of type `char *' which points to the opcode name in its "internal" - form--the form that is written in the machine description. The definition - should output the opcode name to STREAM, performing any translation you - desire, and increment the variable PTR to point at the end of the opcode so - that it will not be output twice. - - In fact, your macro definition may process less than the entire opcode name, - or more than the opcode name; but if you want to process text that includes - `%'-sequences to substitute operands, you must take care of the substitution - yourself. Just be sure to increment PTR over whatever text should not be - output normally. - - If you need to look at the operand values, they can be found as the elements - of `recog_data.operand'. - - If the macro definition does nothing, the instruction is output in the usual - way. */ -/* #define ASM_OUTPUT_OPCODE(STREAM, PTR) */ - -/* If defined, a C statement to be executed just prior to the output of - assembler code for INSN, to modify the extracted operands so they will be - output differently. - - Here the argument OPVEC is the vector containing the operands extracted from - INSN, and NOPERANDS is the number of elements of the vector which contain - meaningful data for this insn. The contents of this vector are what will be - used to convert the insn template into assembler code, so you can change the - assembler output by changing the contents of the vector. - - This macro is useful when various assembler syntaxes share a single file of - instruction patterns; by defining this macro differently, you can cause a - large class of instructions to be output differently (such as with - rearranged operands). Naturally, variations in assembler syntax affecting - individual insn patterns ought to be handled by writing conditional output - routines in those patterns. - - If this macro is not defined, it is equivalent to a null statement. */ -/* #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) */ - -/* If defined, `FINAL_PRESCAN_INSN' will be called on each - `CODE_LABEL'. In that case, OPVEC will be a null pointer and - NOPERANDS will be zero. */ -/* #define FINAL_PRESCAN_LABEL */ - -/* A C compound statement to output to stdio stream STREAM the assembler syntax - for an instruction operand X. X is an RTL expression. - - CODE is a value that can be used to specify one of several ways of printing - the operand. It is used when identical operands must be printed differently - depending on the context. CODE comes from the `%' specification that was - used to request printing of the operand. If the specification was just - `%DIGIT' then CODE is 0; if the specification was `%LTR DIGIT' then CODE is - the ASCII code for LTR. - - If X is a register, this macro should print the register's name. The names - can be found in an array `reg_names' whose type is `char *[]'. `reg_names' - is initialized from `REGISTER_NAMES'. - - When the machine description has a specification `%PUNCT' (a `%' followed by - a punctuation character), this macro is called with a null pointer for X and - the punctuation character for CODE. - - Standard operand flags that are handled elsewhere: - `=' Output a number unique to each instruction in the compilation. - `a' Substitute an operand as if it were a memory reference. - `c' Omit the syntax that indicates an immediate operand. - `l' Substitute a LABEL_REF into a jump instruction. - `n' Like %cDIGIT, except negate the value before printing. - - The d30v specific operand flags are: - `.' Print r0. - `f' Print a SF constant as an int. - `s' Subtract 32 and negate. - `A' Print accumulator number without an `a' in front of it. - `B' Print bit offset for BSET, etc. instructions. - `E' Print u if this is zero extend, nothing if this is sign extend. - `F' Emit /{f,t,x}{f,t,x} for executing a false condition. - `L' Print the lower half of a 64 bit item. - `M' Print a memory reference for ld/st instructions. - `R' Return appropriate cmp instruction for relational test. - `S' Subtract 32. - `T' Emit /{f,t,x}{f,t,x} for executing a true condition. - `U' Print the upper half of a 64 bit item. */ - -#define PRINT_OPERAND(STREAM, X, CODE) d30v_print_operand (STREAM, X, CODE) - -/* A C expression which evaluates to true if CODE is a valid punctuation - character for use in the `PRINT_OPERAND' macro. If - `PRINT_OPERAND_PUNCT_VALID_P' is not defined, it means that no punctuation - characters (except for the standard one, `%') are used in this way. */ - -#define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '.' || (CODE) == ':') - -/* A C compound statement to output to stdio stream STREAM the assembler syntax - for an instruction operand that is a memory reference whose address is X. X - is an RTL expression. - - On some machines, the syntax for a symbolic address depends on the section - that the address refers to. On these machines, define the macro - `ENCODE_SECTION_INFO' to store the information into the `symbol_ref', and - then check for it here. *Note Assembler Format::. */ - -#define PRINT_OPERAND_ADDRESS(STREAM, X) d30v_print_operand_address (STREAM, X) - -/* A C statement, to be executed after all slot-filler instructions have been - output. If necessary, call `dbr_sequence_length' to determine the number of - slots filled in a sequence (zero if not currently outputting a sequence), to - decide how many no-ops to output, or whatever. - - Don't define this macro if it has nothing to do, but it is helpful in - reading assembly output if the extent of the delay sequence is made explicit - (e.g. with white space). - - Note that output routines for instructions with delay slots must be prepared - to deal with not being output as part of a sequence (i.e. when the - scheduling pass is not run, or when no slot fillers could be found.) The - variable `final_sequence' is null when not processing a sequence, otherwise - it contains the `sequence' rtx being output. */ -/* #define DBR_OUTPUT_SEQEND(FILE) */ - -/* If defined, C string expressions to be used for the `%R', `%L', `%U', and - `%I' options of `asm_fprintf' (see `final.c'). These are useful when a - single `md' file must support multiple assembler formats. In that case, the - various `tm.h' files can define these macros differently. - - USER_LABEL_PREFIX is defined in svr4.h. */ - -#define REGISTER_PREFIX "%" -#define LOCAL_LABEL_PREFIX "." -#define USER_LABEL_PREFIX "" -#define IMMEDIATE_PREFIX "" - -/* If your target supports multiple dialects of assembler language (such as - different opcodes), define this macro as a C expression that gives the - numeric index of the assembler language dialect to use, with zero as the - first variant. - - If this macro is defined, you may use `{option0|option1|option2...}' - constructs in the output templates of patterns (*note Output Template::.) or - in the first argument of `asm_fprintf'. This construct outputs `option0', - `option1' or `option2', etc., if the value of `ASSEMBLER_DIALECT' is zero, - one or two, etc. Any special characters within these strings retain their - usual meaning. - - If you do not define this macro, the characters `{', `|' and `}' do not have - any special meaning when used in templates or operands to `asm_fprintf'. - - Define the macros `REGISTER_PREFIX', `LOCAL_LABEL_PREFIX', - `USER_LABEL_PREFIX' and `IMMEDIATE_PREFIX' if you can express the variations - in assemble language syntax with that mechanism. Define `ASSEMBLER_DIALECT' - and use the `{option0|option1}' syntax if the syntax variant are larger and - involve such things as different opcodes or operand order. */ -/* #define ASSEMBLER_DIALECT */ - -/* A C expression to output to STREAM some assembler code which will push hard - register number REGNO onto the stack. The code need not be optimal, since - this macro is used only when profiling. */ -/* #define ASM_OUTPUT_REG_PUSH (STREAM, REGNO) */ - -/* A C expression to output to STREAM some assembler code which will pop hard - register number REGNO off of the stack. The code need not be optimal, since - this macro is used only when profiling. */ -/* #define ASM_OUTPUT_REG_POP (STREAM, REGNO) */ - - -/* Output of dispatch tables. */ - -/* This macro should be provided on machines where the addresses in a dispatch - table are relative to the table's own address. - - The definition should be a C statement to output to the stdio stream STREAM - an assembler pseudo-instruction to generate a difference between two labels. - VALUE and REL are the numbers of two internal labels. The definitions of - these labels are output using `ASM_OUTPUT_INTERNAL_LABEL', and they must be - printed in the same way here. For example, - - fprintf (STREAM, "\t.word L%d-L%d\n", VALUE, REL) */ - -#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ -fprintf (STREAM, "\t.word .L%d-.L%d\n", VALUE, REL) - -/* This macro should be provided on machines where the addresses in a dispatch - table are absolute. - - The definition should be a C statement to output to the stdio stream STREAM - an assembler pseudo-instruction to generate a reference to a label. VALUE - is the number of an internal label whose definition is output using - `ASM_OUTPUT_INTERNAL_LABEL'. For example, - - fprintf (STREAM, "\t.word L%d\n", VALUE) */ - -#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ -fprintf (STREAM, "\t.word .L%d\n", VALUE) - -/* Define this if the label before a jump-table needs to be output specially. - The first three arguments are the same as for `ASM_OUTPUT_INTERNAL_LABEL'; - the fourth argument is the jump-table which follows (a `jump_insn' - containing an `addr_vec' or `addr_diff_vec'). - - This feature is used on system V to output a `swbeg' statement for the - table. - - If this macro is not defined, these labels are output with - `ASM_OUTPUT_INTERNAL_LABEL'. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_CASE_LABEL(STREAM, PREFIX, NUM, TABLE) */ - -/* Define this if something special must be output at the end of a jump-table. - The definition should be a C statement to be executed after the assembler - code for the table is written. It should write the appropriate code to - stdio stream STREAM. The argument TABLE is the jump-table insn, and NUM is - the label-number of the preceding label. - - If this macro is not defined, nothing special is output at the end of the - jump-table. */ -/* #define ASM_OUTPUT_CASE_END(STREAM, NUM, TABLE) */ - - -/* Assembler Commands for Exception Regions. */ - -/* An rtx used to mask the return address found via RETURN_ADDR_RTX, so that it - does not contain any extraneous set bits in it. */ -/* #define MASK_RETURN_ADDR */ - -/* Define this macro to 0 if your target supports DWARF 2 frame unwind - information, but it does not yet work with exception handling. Otherwise, - if your target supports this information (if it defines - `INCOMING_RETURN_ADDR_RTX'), GCC will provide a default definition of 1. - - If this macro is defined to 1, the DWARF 2 unwinder will be the default - exception handling mechanism; otherwise, setjmp/longjmp will be used by - default. - - If this macro is defined to anything, the DWARF 2 unwinder will be used - instead of inline unwinders and __unwind_function in the non-setjmp case. */ -/* #define DWARF2_UNWIND_INFO */ - - -/* Assembler Commands for Alignment. */ - -/* The alignment (log base 2) to put in front of LABEL, which follows - a BARRIER. - - This macro need not be defined if you don't want any special alignment to be - done at such a time. Most machine descriptions do not currently define the - macro. */ -/* #define LABEL_ALIGN_AFTER_BARRIER(LABEL) */ - -/* The desired alignment for the location counter at the beginning - of a loop. - - This macro need not be defined if you don't want any special alignment to be - done at such a time. Most machine descriptions do not currently define the - macro. */ -/* #define LOOP_ALIGN(LABEL) */ - -/* A C statement to output to the stdio stream STREAM an assembler instruction - to advance the location counter by NBYTES bytes. Those bytes should be zero - when loaded. NBYTES will be a C expression of type `int'. - - Defined in svr4.h. */ -/* #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \ - fprintf (STREAM, "\t.zero\t%u\n", (NBYTES)) */ - -/* Define this macro if `ASM_OUTPUT_SKIP' should not be used in the text - section because it fails put zeros in the bytes that are skipped. This is - true on many Unix systems, where the pseudo-op to skip bytes produces no-op - instructions rather than zeros when used in the text section. */ -/* #define ASM_NO_SKIP_IN_TEXT */ - -/* A C statement to output to the stdio stream STREAM an assembler command to - advance the location counter to a multiple of 2 to the POWER bytes. POWER - will be a C expression of type `int'. */ -#define ASM_OUTPUT_ALIGN(STREAM, POWER) \ - fprintf ((STREAM), "\t.p2align %d\n", (POWER)) - - -/* Macros Affecting all Debug Formats. */ - -/* A C expression that returns the DBX register number for the compiler - register number REGNO. In simple cases, the value of this expression may be - REGNO itself. But sometimes there are some registers that the compiler - knows about and DBX does not, or vice versa. In such cases, some register - may need to have one number in the compiler and another for DBX. - - If two registers have consecutive numbers inside GNU CC, and they can be - used as a pair to hold a multiword value, then they *must* have consecutive - numbers after renumbering with `DBX_REGISTER_NUMBER'. Otherwise, debuggers - will be unable to access such a pair, because they expect register pairs to - be consecutive in their own numbering scheme. - - If you find yourself defining `DBX_REGISTER_NUMBER' in way that does not - preserve register pairs, then what you must do instead is redefine the - actual register numbering scheme. */ -#define DBX_REGISTER_NUMBER(REGNO) \ -(GPR_P (REGNO) ? ((REGNO) - GPR_FIRST) \ - : ACCUM_P (REGNO) ? ((REGNO) - ACCUM_FIRST + 84) \ - : FLAG_P (REGNO) ? 66 /* return psw for all flags */ \ - : (REGNO) == ARG_POINTER_REGNUM ? (GPR_SP - GPR_FIRST) \ - : (REGNO) == CR_PSW ? (66 + 0) \ - : (REGNO) == CR_BPSW ? (66 + 1) \ - : (REGNO) == CR_PC ? (66 + 2) \ - : (REGNO) == CR_BPC ? (66 + 3) \ - : (REGNO) == CR_DPSW ? (66 + 4) \ - : (REGNO) == CR_DPC ? (66 + 5) \ - : (REGNO) == CR_RPT_C ? (66 + 7) \ - : (REGNO) == CR_RPT_S ? (66 + 8) \ - : (REGNO) == CR_RPT_E ? (66 + 9) \ - : (REGNO) == CR_MOD_S ? (66 + 10) \ - : (REGNO) == CR_MOD_E ? (66 + 11) \ - : (REGNO) == CR_IBA ? (66 + 14) \ - : (REGNO) == CR_EIT_VB ? (66 + 15) \ - : (REGNO) == CR_INT_S ? (66 + 16) \ - : (REGNO) == CR_INT_M ? (66 + 17) \ - : -1) - -/* A C expression that returns the integer offset value for an automatic - variable having address X (an RTL expression). The default computation - assumes that X is based on the frame-pointer and gives the offset from the - frame-pointer. This is required for targets that produce debugging output - for DBX or COFF-style debugging output for SDB and allow the frame-pointer - to be eliminated when the `-g' options is used. */ -/* #define DEBUGGER_AUTO_OFFSET(X) */ - -/* A C expression that returns the integer offset value for an argument having - address X (an RTL expression). The nominal offset is OFFSET. */ -/* #define DEBUGGER_ARG_OFFSET(OFFSET, X) */ - -/* A C expression that returns the type of debugging output GNU CC produces - when the user specifies `-g' or `-ggdb'. Define this if you have arranged - for GNU CC to support more than one format of debugging output. Currently, - the allowable values are `DBX_DEBUG', `SDB_DEBUG', `DWARF_DEBUG', - `DWARF2_DEBUG', and `XCOFF_DEBUG'. - - The value of this macro only affects the default debugging output; the user - can always get a specific type of output by using `-gstabs', `-gcoff', - `-gdwarf-1', `-gdwarf-2', or `-gxcoff'. - - Defined in svr4.h. */ - -#undef PREFERRED_DEBUGGING_TYPE -#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG - - -/* Specific Options for DBX Output. */ - -/* Define this macro if GNU CC should produce debugging output for DBX in - response to the `-g' option. - - Defined in svr4.h. */ -/* #define DBX_DEBUGGING_INFO */ - -/* Define this macro if GNU CC should produce XCOFF format debugging output in - response to the `-g' option. This is a variant of DBX format. */ -/* #define XCOFF_DEBUGGING_INFO */ - -/* Define this macro to control whether GNU CC should by default generate GDB's - extended version of DBX debugging information (assuming DBX-format debugging - information is enabled at all). If you don't define the macro, the default - is 1: always generate the extended information if there is any occasion to. */ -/* #define DEFAULT_GDB_EXTENSIONS */ - -/* Define this macro if all `.stabs' commands should be output while in the - text section. */ -/* #define DEBUG_SYMS_TEXT */ - -/* A C string constant naming the assembler pseudo op to use instead of - `.stabs' to define an ordinary debugging symbol. If you don't define this - macro, `.stabs' is used. This macro applies only to DBX debugging - information format. */ -/* #define ASM_STABS_OP */ - -/* A C string constant naming the assembler pseudo op to use instead of - `.stabd' to define a debugging symbol whose value is the current location. - If you don't define this macro, `.stabd' is used. This macro applies only - to DBX debugging information format. */ -/* #define ASM_STABD_OP */ - -/* A C string constant naming the assembler pseudo op to use instead of - `.stabn' to define a debugging symbol with no name. If you don't define - this macro, `.stabn' is used. This macro applies only to DBX debugging - information format. */ -/* #define ASM_STABN_OP */ - -/* Define this macro if DBX on your system does not support the construct - `xsTAGNAME'. On some systems, this construct is used to describe a forward - reference to a structure named TAGNAME. On other systems, this construct is - not supported at all. */ -/* #define DBX_NO_XREFS */ - -/* A symbol name in DBX-format debugging information is normally continued - (split into two separate `.stabs' directives) when it exceeds a certain - length (by default, 80 characters). On some operating systems, DBX requires - this splitting; on others, splitting must not be done. You can inhibit - splitting by defining this macro with the value zero. You can override the - default splitting-length by defining this macro as an expression for the - length you desire. */ -/* #define DBX_CONTIN_LENGTH */ - -/* Normally continuation is indicated by adding a `\' character to the end of a - `.stabs' string when a continuation follows. To use a different character - instead, define this macro as a character constant for the character you - want to use. Do not define this macro if backslash is correct for your - system. */ -/* #define DBX_CONTIN_CHAR */ - -/* Define this macro if it is necessary to go to the data section before - outputting the `.stabs' pseudo-op for a non-global static variable. */ -/* #define DBX_STATIC_STAB_DATA_SECTION */ - -/* The value to use in the "code" field of the `.stabs' directive for a - typedef. The default is `N_LSYM'. */ -/* #define DBX_TYPE_DECL_STABS_CODE */ - -/* The value to use in the "code" field of the `.stabs' directive for a static - variable located in the text section. DBX format does not provide any - "right" way to do this. The default is `N_FUN'. */ -/* #define DBX_STATIC_CONST_VAR_CODE */ - -/* The value to use in the "code" field of the `.stabs' directive for a - parameter passed in registers. DBX format does not provide any "right" way - to do this. The default is `N_RSYM'. */ -/* #define DBX_REGPARM_STABS_CODE */ - -/* The letter to use in DBX symbol data to identify a symbol as a parameter - passed in registers. DBX format does not customarily provide any way to do - this. The default is `'P''. */ -/* #define DBX_REGPARM_STABS_LETTER */ - -/* The letter to use in DBX symbol data to identify a symbol as a stack - parameter. The default is `'p''. */ -/* #define DBX_MEMPARM_STABS_LETTER */ - -/* Define this macro if the DBX information for a function and its arguments - should precede the assembler code for the function. Normally, in DBX - format, the debugging information entirely follows the assembler code. - - Defined in svr4.h. */ -/* #define DBX_FUNCTION_FIRST */ - -/* Define this macro if the `N_LBRAC' symbol for a block should precede the - debugging information for variables and functions defined in that block. - Normally, in DBX format, the `N_LBRAC' symbol comes first. */ -/* #define DBX_LBRAC_FIRST */ - -/* Define this macro if the value of a symbol describing the scope of a block - (`N_LBRAC' or `N_RBRAC') should be relative to the start of the enclosing - function. Normally, GNU C uses an absolute address. - - Defined in svr4.h. */ -/* #define DBX_BLOCKS_FUNCTION_RELATIVE */ - -/* Define this macro if GNU C should generate `N_BINCL' and `N_EINCL' - stabs for included header files, as on Sun systems. This macro - also directs GNU C to output a type number as a pair of a file - number and a type number within the file. Normally, GNU C does not - generate `N_BINCL' or `N_EINCL' stabs, and it outputs a single - number for a type number. */ -/* #define DBX_USE_BINCL */ - - -/* Open ended Hooks for DBX Output. */ - -/* Define this macro to say how to output to STREAM the debugging information - for the start of a scope level for variable names. The argument NAME is the - name of an assembler symbol (for use with `assemble_name') whose value is - the address where the scope begins. */ -/* #define DBX_OUTPUT_LBRAC(STREAM, NAME) */ - -/* Like `DBX_OUTPUT_LBRAC', but for the end of a scope level. */ -/* #define DBX_OUTPUT_RBRAC(STREAM, NAME) */ - -/* Define this macro if the target machine requires special handling to output - an enumeration type. The definition should be a C statement (sans - semicolon) to output the appropriate information to STREAM for the type - TYPE. */ -/* #define DBX_OUTPUT_ENUM(STREAM, TYPE) */ - -/* Define this macro if the target machine requires special output at the end - of the debugging information for a function. The definition should be a C - statement (sans semicolon) to output the appropriate information to STREAM. - FUNCTION is the `FUNCTION_DECL' node for the function. */ -/* #define DBX_OUTPUT_FUNCTION_END(STREAM, FUNCTION) */ - -/* Define this macro if you need to control the order of output of the standard - data types at the beginning of compilation. The argument SYMS is a `tree' - which is a chain of all the predefined global symbols, including names of - data types. - - Normally, DBX output starts with definitions of the types for integers and - characters, followed by all the other predefined types of the particular - language in no particular order. - - On some machines, it is necessary to output different particular types - first. To do this, define `DBX_OUTPUT_STANDARD_TYPES' to output those - symbols in the necessary order. Any predefined types that you don't - explicitly output will be output afterward in no particular order. - - Be careful not to define this macro so that it works only for C. There are - no global variables to access most of the built-in types, because another - language may have another set of types. The way to output a particular type - is to look through SYMS to see if you can find it. Here is an example: - - { - tree decl; - for (decl = syms; decl; decl = TREE_CHAIN (decl)) - if (!strcmp (IDENTIFIER_POINTER (DECL_NAME (decl)), - "long int")) - dbxout_symbol (decl); - ... - } - - This does nothing if the expected type does not exist. - - See the function `init_decl_processing' in `c-decl.c' to find the names to - use for all the built-in C types. */ -/* #define DBX_OUTPUT_STANDARD_TYPES(SYMS) */ - -/* Some stabs encapsulation formats (in particular ECOFF), cannot - handle the `.stabs "",N_FUN,,0,0,Lscope-function-1' gdb dbx - extension construct. On those machines, define this macro to turn - this feature off without disturbing the rest of the gdb extensions. */ -/* #define NO_DBX_FUNCTION_END */ - - -/* File names in DBX format. */ - -/* Define this if DBX wants to have the current directory recorded in each - object file. - - Note that the working directory is always recorded if GDB extensions are - enabled. */ -/* #define DBX_WORKING_DIRECTORY */ - -/* A C statement to output DBX debugging information to the stdio stream STREAM - which indicates that file NAME is the main source file--the file specified - as the input file for compilation. This macro is called only once, at the - beginning of compilation. - - This macro need not be defined if the standard form of output for DBX - debugging information is appropriate. - - Defined in svr4.h. */ -/* #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM, NAME) */ - -/* A C statement to output DBX debugging information to the stdio stream STREAM - which indicates that the current directory during compilation is named NAME. - - This macro need not be defined if the standard form of output for DBX - debugging information is appropriate. */ -/* #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(STREAM, NAME) */ - -/* A C statement to output DBX debugging information at the end of compilation - of the main source file NAME. - - If you don't define this macro, nothing special is output at the end of - compilation, which is correct for most machines. */ -/* #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(STREAM, NAME) */ - -/* A C statement to output DBX debugging information to the stdio stream STREAM - which indicates that file NAME is the current source file. This output is - generated each time input shifts to a different source file as a result of - `#include', the end of an included file, or a `#line' command. - - This macro need not be defined if the standard form of output for DBX - debugging information is appropriate. */ -/* #define DBX_OUTPUT_SOURCE_FILENAME(STREAM, NAME) */ - - -/* Macros for SDB and Dwarf Output. */ - -/* Define this macro if GNU CC should produce COFF-style debugging output for - SDB in response to the `-g' option. */ -/* #define SDB_DEBUGGING_INFO */ - -/* Define this macro if GNU CC should produce dwarf format debugging output in - response to the `-g' option. - - Defined in svr4.h. */ -/* #define DWARF_DEBUGGING_INFO */ - -/* Define this macro if GNU CC should produce dwarf version 2 format debugging - output in response to the `-g' option. - - To support optional call frame debugging information, you must also define - `INCOMING_RETURN_ADDR_RTX' and either set `RTX_FRAME_RELATED_P' on the - prologue insns if you use RTL for the prologue, or call `dwarf2out_def_cfa' - and `dwarf2out_reg_save' as appropriate from output_function_prologue() if - you don't. - - Defined in svr4.h. */ -/* #define DWARF2_DEBUGGING_INFO */ - -/* Define these macros to override the assembler syntax for the special SDB - assembler directives. See `sdbout.c' for a list of these macros and their - arguments. If the standard syntax is used, you need not define them - yourself. */ -/* #define PUT_SDB_... */ - -/* Some assemblers do not support a semicolon as a delimiter, even between SDB - assembler directives. In that case, define this macro to be the delimiter - to use (usually `\n'). It is not necessary to define a new set of - `PUT_SDB_OP' macros if this is the only change required. */ -/* #define SDB_DELIM */ - -/* Define this macro to override the usual method of constructing a dummy name - for anonymous structure and union types. See `sdbout.c' for more - information. */ -/* #define SDB_GENERATE_FAKE */ - -/* Define this macro to allow references to unknown structure, union, or - enumeration tags to be emitted. Standard COFF does not allow handling of - unknown references, MIPS ECOFF has support for it. */ -/* #define SDB_ALLOW_UNKNOWN_REFERENCES */ - -/* Define this macro to allow references to structure, union, or enumeration - tags that have not yet been seen to be handled. Some assemblers choke if - forward tags are used, while some require it. */ -/* #define SDB_ALLOW_FORWARD_REFERENCES */ - - -/* Cross Compilation and Floating Point. */ - -/* While all modern machines use 2's complement representation for integers, - there are a variety of representations for floating point numbers. This - means that in a cross-compiler the representation of floating point numbers - in the compiled program may be different from that used in the machine doing - the compilation. - - Because different representation systems may offer different amounts of - range and precision, the cross compiler cannot safely use the host machine's - floating point arithmetic. Therefore, floating point constants must be - represented in the target machine's format. This means that the cross - compiler cannot use `atof' to parse a floating point constant; it must have - its own special routine to use instead. Also, constant folding must emulate - the target machine's arithmetic (or must not be done at all). - - The macros in the following table should be defined only if you are cross - compiling between different floating point formats. - - Otherwise, don't define them. Then default definitions will be set up which - use `double' as the data type, `==' to test for equality, etc. - - You don't need to worry about how many times you use an operand of any of - these macros. The compiler never uses operands which have side effects. */ - -/* A macro for the C data type to be used to hold a floating point value in the - target machine's format. Typically this would be a `struct' containing an - array of `int'. */ -/* #define REAL_VALUE_TYPE */ - -/* A macro for a C expression which compares for equality the two values, X and - Y, both of type `REAL_VALUE_TYPE'. */ -/* #define REAL_VALUES_EQUAL(X, Y) */ - -/* A macro for a C expression which tests whether X is less than Y, both values - being of type `REAL_VALUE_TYPE' and interpreted as floating point numbers in - the target machine's representation. */ -/* #define REAL_VALUES_LESS(X, Y) */ - -/* A macro for a C expression which performs the standard library function - `ldexp', but using the target machine's floating point representation. Both - X and the value of the expression have type `REAL_VALUE_TYPE'. The second - argument, SCALE, is an integer. */ -/* #define REAL_VALUE_LDEXP(X, SCALE) */ - -/* A macro whose definition is a C expression to convert the target-machine - floating point value X to a signed integer. X has type `REAL_VALUE_TYPE'. */ -/* #define REAL_VALUE_FIX(X) */ - -/* A macro whose definition is a C expression to convert the target-machine - floating point value X to an unsigned integer. X has type - `REAL_VALUE_TYPE'. */ -/* #define REAL_VALUE_UNSIGNED_FIX(X) */ - -/* A macro whose definition is a C expression to round the target-machine - floating point value X towards zero to an integer value (but still as a - floating point number). X has type `REAL_VALUE_TYPE', and so does the - value. */ -/* #define REAL_VALUE_RNDZINT(X) */ - -/* A macro whose definition is a C expression to round the target-machine - floating point value X towards zero to an unsigned integer value (but still - represented as a floating point number). X has type `REAL_VALUE_TYPE', and - so does the value. */ -/* #define REAL_VALUE_UNSIGNED_RNDZINT(X) */ - -/* A macro for a C expression which converts STRING, an expression of type - `char *', into a floating point number in the target machine's - representation for mode MODE. The value has type `REAL_VALUE_TYPE'. */ -/* #define REAL_VALUE_ATOF(STRING, MODE) */ - -/* Define this macro if infinity is a possible floating point value, and - therefore division by 0 is legitimate. */ -/* #define REAL_INFINITY */ - -/* A macro for a C expression which determines whether X, a floating point - value, is infinity. The value has type `int'. By default, this is defined - to call `isinf'. */ -/* #define REAL_VALUE_ISINF(X) */ - -/* A macro for a C expression which determines whether X, a floating point - value, is a "nan" (not-a-number). The value has type `int'. By default, - this is defined to call `isnan'. */ -/* #define REAL_VALUE_ISNAN(X) */ - -/* Define the following additional macros if you want to make floating point - constant folding work while cross compiling. If you don't define them, - cross compilation is still possible, but constant folding will not happen - for floating point values. */ - -/* A macro for a C statement which calculates an arithmetic operation of the - two floating point values X and Y, both of type `REAL_VALUE_TYPE' in the - target machine's representation, to produce a result of the same type and - representation which is stored in OUTPUT (which will be a variable). - - The operation to be performed is specified by CODE, a tree code which will - always be one of the following: `PLUS_EXPR', `MINUS_EXPR', `MULT_EXPR', - `RDIV_EXPR', `MAX_EXPR', `MIN_EXPR'. - - The expansion of this macro is responsible for checking for overflow. If - overflow happens, the macro expansion should execute the statement `return - 0;', which indicates the inability to perform the arithmetic operation - requested. */ -/* #define REAL_ARITHMETIC(OUTPUT, CODE, X, Y) */ - -/* The real.h file actually defines REAL_ARITHMETIC appropriately if it was - defined at all before entering into the code, by using #undef first. */ -#define REAL_ARITHMETIC - -/* A macro for a C expression which returns the negative of the floating point - value X. Both X and the value of the expression have type `REAL_VALUE_TYPE' - and are in the target machine's floating point representation. - - There is no way for this macro to report overflow, since overflow can't - happen in the negation operation. */ -/* #define REAL_VALUE_NEGATE(X) */ - -/* A macro for a C expression which converts the floating point value X to mode - MODE. - - Both X and the value of the expression are in the target machine's floating - point representation and have type `REAL_VALUE_TYPE'. However, the value - should have an appropriate bit pattern to be output properly as a floating - constant whose precision accords with mode MODE. - - There is no way for this macro to report overflow. */ -/* #define REAL_VALUE_TRUNCATE(MODE, X) */ - -/* A macro for a C expression which converts a floating point value X into a - double-precision integer which is then stored into LOW and HIGH, two - variables of type INT. */ -/* #define REAL_VALUE_TO_INT(LOW, HIGH, X) */ - -/* A macro for a C expression which converts a double-precision integer found - in LOW and HIGH, two variables of type INT, into a floating point value - which is then stored into X. */ -/* #define REAL_VALUE_FROM_INT(X, LOW, HIGH) */ - - -/* Miscellaneous Parameters. */ - -/* Define this if you have defined special-purpose predicates in the file - `MACHINE.c'. This macro is called within an initializer of an array of - structures. The first field in the structure is the name of a predicate and - the second field is an array of rtl codes. For each predicate, list all rtl - codes that can be in expressions matched by the predicate. The list should - have a trailing comma. Here is an example of two entries in the list for a - typical RISC machine: - - #define PREDICATE_CODES \ - {"gen_reg_rtx_operand", {SUBREG, REG}}, \ - {"reg_or_short_cint_operand", {SUBREG, REG, CONST_INT}}, - - Defining this macro does not affect the generated code (however, incorrect - definitions that omit an rtl code that may be matched by the predicate can - cause the compiler to malfunction). Instead, it allows the table built by - `genrecog' to be more compact and efficient, thus speeding up the compiler. - The most important predicates to include in the list specified by this macro - are thoses used in the most insn patterns. */ - -#define PREDICATE_CODES \ - { "short_memory_operand", { MEM }}, \ - { "long_memory_operand", { MEM }}, \ - { "d30v_memory_operand", { MEM }}, \ - { "single_reg_memory_operand", { MEM }}, \ - { "const_addr_memory_operand", { MEM }}, \ - { "call_operand", { MEM }}, \ - { "gpr_operand", { REG, SUBREG }}, \ - { "accum_operand", { REG, SUBREG }}, \ - { "gpr_or_accum_operand", { REG, SUBREG }}, \ - { "cr_operand", { REG, SUBREG }}, \ - { "repeat_operand", { REG, SUBREG }}, \ - { "flag_operand", { REG, SUBREG }}, \ - { "br_flag_operand", { REG, SUBREG }}, \ - { "br_flag_or_constant_operand", { REG, SUBREG, CONST_INT }}, \ - { "gpr_or_br_flag_operand", { REG, SUBREG }}, \ - { "f0_operand", { REG, SUBREG }}, \ - { "f1_operand", { REG, SUBREG }}, \ - { "carry_operand", { REG, SUBREG }}, \ - { "reg_or_0_operand", { REG, SUBREG, CONST_INT, \ - CONST_DOUBLE }}, \ - { "gpr_or_signed6_operand", { REG, SUBREG, CONST_INT }}, \ - { "gpr_or_unsigned5_operand", { REG, SUBREG, CONST_INT }}, \ - { "gpr_or_unsigned6_operand", { REG, SUBREG, CONST_INT }}, \ - { "gpr_or_constant_operand", { REG, SUBREG, CONST_INT, \ - CONST, SYMBOL_REF, \ - LABEL_REF }}, \ - { "gpr_or_dbl_const_operand", { REG, SUBREG, CONST_INT, \ - CONST, SYMBOL_REF, \ - LABEL_REF, CONST_DOUBLE }}, \ - { "gpr_or_memory_operand", { REG, SUBREG, MEM }}, \ - { "move_input_operand", { REG, SUBREG, MEM, CONST_INT, \ - CONST, SYMBOL_REF, \ - LABEL_REF, CONST_DOUBLE }}, \ - { "move_output_operand", { REG, SUBREG, MEM }}, \ - { "signed6_operand", { CONST_INT }}, \ - { "unsigned5_operand", { CONST_INT }}, \ - { "unsigned6_operand", { CONST_INT }}, \ - { "bitset_operand", { CONST_INT }}, \ - { "condexec_test_operator", { EQ, NE }}, \ - { "condexec_branch_operator", { EQ, NE }}, \ - { "condexec_unary_operator", { ABS, NEG, NOT, ZERO_EXTEND }}, \ - { "condexec_addsub_operator", { PLUS, MINUS }}, \ - { "condexec_binary_operator", { MULT, AND, IOR, XOR, \ - ASHIFT, ASHIFTRT, LSHIFTRT, \ - ROTATE, ROTATERT }}, \ - { "condexec_shiftl_operator", { ASHIFT, ROTATE }}, \ - { "condexec_extend_operator", { SIGN_EXTEND, ZERO_EXTEND }}, \ - { "branch_zero_operator", { EQ, NE }}, \ - { "cond_move_dest_operand", { REG, SUBREG, MEM }}, \ - { "cond_move_operand", { REG, SUBREG, CONST_INT, \ - CONST, SYMBOL_REF, \ - LABEL_REF, MEM }}, \ - { "cond_exec_operand", { REG, SUBREG, CONST_INT, \ - CONST, SYMBOL_REF, \ - LABEL_REF, MEM }}, \ - { "srelational_si_operator", { EQ, NE, LT, LE, GT, GE }}, \ - { "urelational_si_operator", { LTU, LEU, GTU, GEU }}, \ - { "relational_di_operator", { EQ, NE, LT, LE, GT, GE, \ - LTU, LEU, GTU, GEU }}, - -/* An alias for a machine mode name. This is the machine mode that elements of - a jump-table should have. */ -#define CASE_VECTOR_MODE SImode - -/* Define as C expression which evaluates to nonzero if the tablejump - instruction expects the table to contain offsets from the address of the - table. - Do not define this if the table should contain absolute addresses. */ -/* #define CASE_VECTOR_PC_RELATIVE 1 */ - -/* Define this if control falls through a `case' insn when the index value is - out of range. This means the specified default-label is actually ignored by - the `case' insn proper. */ -/* #define CASE_DROPS_THROUGH */ - -/* Define this to be the smallest number of different values for which it is - best to use a jump-table instead of a tree of conditional branches. The - default is four for machines with a `casesi' instruction and five otherwise. - This is best for most machines. */ -/* #define CASE_VALUES_THRESHOLD */ - -/* Define this macro if operations between registers with integral mode smaller - than a word are always performed on the entire register. Most RISC machines - have this property and most CISC machines do not. */ -#define WORD_REGISTER_OPERATIONS 1 - -/* Define this macro to be a C expression indicating when insns that read - memory in MODE, an integral mode narrower than a word, set the bits outside - of MODE to be either the sign-extension or the zero-extension of the data - read. Return `SIGN_EXTEND' for values of MODE for which the insn - sign-extends, `ZERO_EXTEND' for which it zero-extends, and `NIL' for other - modes. - - This macro is not called with MODE non-integral or with a width greater than - or equal to `BITS_PER_WORD', so you may return any value in this case. Do - not define this macro if it would always return `NIL'. On machines where - this macro is defined, you will normally define it as the constant - `SIGN_EXTEND' or `ZERO_EXTEND'. */ - -#define LOAD_EXTEND_OP(MODE) SIGN_EXTEND - -/* Define if loading short immediate values into registers sign extends. */ -#define SHORT_IMMEDIATES_SIGN_EXTEND - -/* Define this macro if the same instructions that convert a floating point - number to a signed fixed point number also convert validly to an unsigned - one. */ -/* #define FIXUNS_TRUNC_LIKE_FIX_TRUNC */ - -/* The maximum number of bytes that a single instruction can move quickly from - memory to memory. */ -#define MOVE_MAX 8 - -/* The maximum number of bytes that a single instruction can move quickly from - memory to memory. If this is undefined, the default is `MOVE_MAX'. - Otherwise, it is the constant value that is the largest value that - `MOVE_MAX' can have at run-time. */ -/* #define MAX_MOVE_MAX */ - -/* A C expression that is nonzero if on this machine the number of bits - actually used for the count of a shift operation is equal to the number of - bits needed to represent the size of the object being shifted. When this - macro is non-zero, the compiler will assume that it is safe to omit a - sign-extend, zero-extend, and certain bitwise `and' instructions that - truncates the count of a shift operation. On machines that have - instructions that act on bitfields at variable positions, which may include - `bit test' instructions, a nonzero `SHIFT_COUNT_TRUNCATED' also enables - deletion of truncations of the values that serve as arguments to bitfield - instructions. - - If both types of instructions truncate the count (for shifts) and position - (for bitfield operations), or if no variable-position bitfield instructions - exist, you should define this macro. - - However, on some machines, such as the 80386 and the 680x0, truncation only - applies to shift operations and not the (real or pretended) bitfield - operations. Define `SHIFT_COUNT_TRUNCATED' to be zero on such machines. - Instead, add patterns to the `md' file that include the implied truncation - of the shift instructions. - - You need not define this macro if it would always have the value of zero. */ -/* #define SHIFT_COUNT_TRUNCATED */ - -/* A C expression which is nonzero if on this machine it is safe to "convert" - an integer of INPREC bits to one of OUTPREC bits (where OUTPREC is smaller - than INPREC) by merely operating on it as if it had only OUTPREC bits. - - On many machines, this expression can be 1. - - When `TRULY_NOOP_TRUNCATION' returns 1 for a pair of sizes for modes for - which `MODES_TIEABLE_P' is 0, suboptimal code can result. If this is the - case, making `TRULY_NOOP_TRUNCATION' return 0 in such cases may improve - things. */ -#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 - -/* A C expression describing the value returned by a comparison operator with - an integral mode and stored by a store-flag instruction (`sCOND') when the - condition is true. This description must apply to *all* the `sCOND' - patterns and all the comparison operators whose results have a `MODE_INT' - mode. - - A value of 1 or -1 means that the instruction implementing the comparison - operator returns exactly 1 or -1 when the comparison is true and 0 when the - comparison is false. Otherwise, the value indicates which bits of the - result are guaranteed to be 1 when the comparison is true. This value is - interpreted in the mode of the comparison operation, which is given by the - mode of the first operand in the `sCOND' pattern. Either the low bit or the - sign bit of `STORE_FLAG_VALUE' be on. Presently, only those bits are used - by the compiler. - - If `STORE_FLAG_VALUE' is neither 1 or -1, the compiler will generate code - that depends only on the specified bits. It can also replace comparison - operators with equivalent operations if they cause the required bits to be - set, even if the remaining bits are undefined. For example, on a machine - whose comparison operators return an `SImode' value and where - `STORE_FLAG_VALUE' is defined as `0x80000000', saying that just the sign bit - is relevant, the expression - - (ne:SI (and:SI X (const_int POWER-OF-2)) (const_int 0)) - - can be converted to - - (ashift:SI X (const_int N)) - - where N is the appropriate shift count to move the bit being tested into the - sign bit. - - There is no way to describe a machine that always sets the low-order bit for - a true value, but does not guarantee the value of any other bits, but we do - not know of any machine that has such an instruction. If you are trying to - port GNU CC to such a machine, include an instruction to perform a - logical-and of the result with 1 in the pattern for the comparison operators - and let us know (*note How to Report Bugs: Bug Reporting.). - - Often, a machine will have multiple instructions that obtain a value from a - comparison (or the condition codes). Here are rules to guide the choice of - value for `STORE_FLAG_VALUE', and hence the instructions to be used: - - * Use the shortest sequence that yields a valid definition for - `STORE_FLAG_VALUE'. It is more efficient for the compiler to - "normalize" the value (convert it to, e.g., 1 or 0) than for - the comparison operators to do so because there may be - opportunities to combine the normalization with other - operations. - - * For equal-length sequences, use a value of 1 or -1, with -1 - being slightly preferred on machines with expensive jumps and - 1 preferred on other machines. - - * As a second choice, choose a value of `0x80000001' if - instructions exist that set both the sign and low-order bits - but do not define the others. - - * Otherwise, use a value of `0x80000000'. - - Many machines can produce both the value chosen for `STORE_FLAG_VALUE' and - its negation in the same number of instructions. On those machines, you - should also define a pattern for those cases, e.g., one matching - - (set A (neg:M (ne:M B C))) - - Some machines can also perform `and' or `plus' operations on condition code - values with less instructions than the corresponding `sCOND' insn followed - by `and' or `plus'. On those machines, define the appropriate patterns. - Use the names `incscc' and `decscc', respectively, for the the patterns - which perform `plus' or `minus' operations on condition code values. See - `rs6000.md' for some examples. The GNU Superoptizer can be used to find - such instruction sequences on other machines. - - You need not define `STORE_FLAG_VALUE' if the machine has no store-flag - instructions. */ -/* #define STORE_FLAG_VALUE */ - -/* A C expression that gives a non-zero floating point value that is returned - when comparison operators with floating-point results are true. Define this - macro on machine that have comparison operations that return floating-point - values. If there are no such operations, do not define this macro. */ -/* #define FLOAT_STORE_FLAG_VALUE */ - -/* An alias for the machine mode for pointers. On most machines, define this - to be the integer mode corresponding to the width of a hardware pointer; - `SImode' on 32-bit machine or `DImode' on 64-bit machines. On some machines - you must define this to be one of the partial integer modes, such as - `PSImode'. - - The width of `Pmode' must be at least as large as the value of - `POINTER_SIZE'. If it is not equal, you must define the macro - `POINTERS_EXTEND_UNSIGNED' to specify how pointers are extended to `Pmode'. */ -#define Pmode SImode - -/* An alias for the machine mode used for memory references to functions being - called, in `call' RTL expressions. On most machines this should be - `QImode'. */ -#define FUNCTION_MODE QImode - -/* A C expression for the maximum number of instructions above which the - function DECL should not be inlined. DECL is a `FUNCTION_DECL' node. - - The default definition of this macro is 64 plus 8 times the number of - arguments that the function accepts. Some people think a larger threshold - should be used on RISC machines. */ -/* #define INTEGRATE_THRESHOLD(DECL) */ - -/* Define this if the preprocessor should ignore `#sccs' directives and print - no error message. - - Defined in svr4.h. */ -/* #define SCCS_DIRECTIVE */ - -/* Define this macro if the system header files support C++ as well as C. This - macro inhibits the usual method of using system header files in C++, which - is to pretend that the file's contents are enclosed in `extern "C" {...}'. */ -/* #define NO_IMPLICIT_EXTERN_C */ - -/* Define this macro to handle System V style pragmas (particularly #pack). - - Defined in svr4.h. */ -#define HANDLE_SYSV_PRAGMA - -/* Define this macro if you want to handle #pragma weak (HANDLE_SYSV_PRAGMA - must also be defined). */ -/* #define HANDLE_WEAK_PRAGMA */ - -/* Define this macro to control use of the character `$' in identifier names. - The value should be 0, 1, or 2. 0 means `$' is not allowed by default; 1 - means it is allowed by default if `-traditional' is used; 2 means it is - allowed by default provided `-ansi' is not used. 1 is the default; there is - no need to define this macro in that case. */ -/* #define DOLLARS_IN_IDENTIFIERS */ - -/* Define this macro if the assembler does not accept the character `$' in - label names. By default constructors and destructors in G++ have `$' in the - identifiers. If this macro is defined, `.' is used instead. - - Defined in svr4.h. */ -/* #define NO_DOLLAR_IN_LABEL */ - -/* Define this macro if the assembler does not accept the character `.' in - label names. By default constructors and destructors in G++ have names that - use `.'. If this macro is defined, these names are rewritten to avoid `.'. */ -/* #define NO_DOT_IN_LABEL */ - -/* Define this macro if the target system expects every program's `main' - function to return a standard "success" value by default (if no other value - is explicitly returned). - - The definition should be a C statement (sans semicolon) to generate the - appropriate rtl instructions. It is used only when compiling the end of - `main'. */ -/* #define DEFAULT_MAIN_RETURN */ - -/* Define this if your `exit' function needs to do something besides calling an - external function `_cleanup' before terminating with `_exit'. The - `EXIT_BODY' macro is only needed if `NEED_ATEXIT' is defined and - `ON_EXIT' is not defined. */ -/* #define EXIT_BODY */ - -/* Define this macro as a C expression that is nonzero if it is safe for the - delay slot scheduler to place instructions in the delay slot of INSN, even - if they appear to use a resource set or clobbered in INSN. INSN is always a - `jump_insn' or an `insn'; GNU CC knows that every `call_insn' has this - behavior. On machines where some `insn' or `jump_insn' is really a function - call and hence has this behavior, you should define this macro. - - You need not define this macro if it would always return zero. */ -/* #define INSN_SETS_ARE_DELAYED(INSN) */ - -/* Define this macro as a C expression that is nonzero if it is safe for the - delay slot scheduler to place instructions in the delay slot of INSN, even - if they appear to set or clobber a resource referenced in INSN. INSN is - always a `jump_insn' or an `insn'. On machines where some `insn' or - `jump_insn' is really a function call and its operands are registers whose - use is actually in the subroutine it calls, you should define this macro. - Doing so allows the delay slot scheduler to move instructions which copy - arguments into the argument registers into the delay slot of INSN. - - You need not define this macro if it would always return zero. */ -/* #define INSN_REFERENCES_ARE_DELAYED(INSN) */ - -/* In rare cases, correct code generation requires extra machine dependent - processing between the second jump optimization pass and delayed branch - scheduling. On those machines, define this macro as a C statement to act on - the code starting at INSN. */ -#define MACHINE_DEPENDENT_REORG(INSN) d30v_machine_dependent_reorg (INSN) - -/* Define this macro if in some cases global symbols from one translation unit - may not be bound to undefined symbols in another translation unit without - user intervention. For instance, under Microsoft Windows symbols must be - explicitly imported from shared libraries (DLLs). */ -/* #define MULTIPLE_SYMBOL_SPACES */ - -/* A C expression for the maximum number of instructions to execute via - conditional execution instructions instead of a branch. A value of - BRANCH_COST+1 is the default if the machine does not use cc0, and 1 if it - does use cc0. */ -#define MAX_CONDITIONAL_EXECUTE d30v_cond_exec - -#define D30V_DEFAULT_MAX_CONDITIONAL_EXECUTE 4 - -/* Values of the -mcond-exec=n string. */ -extern int d30v_cond_exec; -extern const char *d30v_cond_exec_string; - -#endif /* GCC_D30V_H */