+++ /dev/null
-/* Definitions of target machine for GNU compiler for
- Motorola m88100 in an 88open OCS/BCS environment.
- Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002 Free Software Foundation, Inc.
- Contributed by Michael Tiemann (tiemann@cygnus.com).
- Currently maintained by (gcc@dg-rtp.dg.com)
-
-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. */
-
-/* The m88100 port of GNU CC adheres to the various standards from 88open.
- These documents are available by writing:
-
- 88open Consortium Ltd.
- 100 Homeland Court, Suite 800
- San Jose, CA 95112
- (408) 436-6600
-
- In brief, the current standards are:
-
- Binary Compatibility Standard, Release 1.1A, May 1991
- This provides for portability of application-level software at the
- executable level for AT&T System V Release 3.2.
-
- Object Compatibility Standard, Release 1.1A, May 1991
- This provides for portability of application-level software at the
- object file and library level for C, Fortran, and Cobol, and again,
- largely for SVR3.
-
- Under development are standards for AT&T System V Release 4, based on the
- [generic] System V Application Binary Interface from AT&T. These include:
-
- System V Application Binary Interface, Motorola 88000 Processor Supplement
- Another document from AT&T for SVR4 specific to the m88100.
- Available from Prentice Hall.
-
- System V Application Binary Interface, Motorola 88000 Processor Supplement,
- Release 1.1, Draft H, May 6, 1991
- A proposed update to the AT&T document from 88open.
-
- System V ABI Implementation Guide for the M88000 Processor,
- Release 1.0, January 1991
- A companion ABI document from 88open. */
-
-/* Other *.h files in config/m88k include this one and override certain items.
- Currently these are sysv3.h, sysv4.h, dgux.h, dolph.h, tekXD88.h, and luna.h.
- Additionally, sysv4.h and dgux.h include svr4.h first. All other
- m88k targets except luna.h are based on svr3.h. */
-
-/* Choose SVR3 as the default. */
-#if !defined(DBX_DEBUGGING_INFO) && !defined(DWARF_DEBUGGING_INFO)
-#include "svr3.h"
-#endif
-\f
-/* External types used. */
-
-/* What instructions are needed to manufacture an integer constant. */
-enum m88k_instruction {
- m88k_zero,
- m88k_or,
- m88k_subu,
- m88k_or_lo16,
- m88k_or_lo8,
- m88k_set,
- m88k_oru_hi16,
- m88k_oru_or
-};
-
-/* Which processor to schedule for. The elements of the enumeration
- must match exactly the cpu attribute in the m88k.md machine description. */
-
-enum processor_type {
- PROCESSOR_M88100,
- PROCESSOR_M88110,
- PROCESSOR_M88000
-};
-
-/* Recast the cpu class to be the cpu attribute. */
-#define m88k_cpu_attr ((enum attr_cpu)m88k_cpu)
-
-/* External variables/functions defined in m88k.c. */
-
-extern const char *m88k_pound_sign;
-extern const char *m88k_short_data;
-extern const char *m88k_version;
-extern char m88k_volatile_code;
-
-extern unsigned m88k_gp_threshold;
-extern int m88k_prologue_done;
-extern int m88k_function_number;
-extern int m88k_fp_offset;
-extern int m88k_stack_size;
-extern int m88k_case_index;
-
-extern struct rtx_def *m88k_compare_reg;
-extern struct rtx_def *m88k_compare_op0;
-extern struct rtx_def *m88k_compare_op1;
-
-extern enum processor_type m88k_cpu;
-
-/* external variables defined elsewhere in the compiler */
-
-extern int target_flags; /* -m compiler switches */
-extern int frame_pointer_needed; /* current function has a FP */
-extern int flag_delayed_branch; /* -fdelayed-branch */
-extern int flag_pic; /* -fpic */
-
-/* Specify the default monitors. The meaning of these values can
- be obtained by doing "grep MONITOR_GCC *m88k*". Generally, the
- values downward from 0x8000 are tests that will soon go away.
- values upward from 0x1 are generally useful tests that will remain. */
-
-#ifndef MONITOR_GCC
-#define MONITOR_GCC 0
-#endif
-\f
-/*** Controlling the Compilation Driver, `gcc' ***/
-/* Show we can debug even without a frame pointer. */
-#define CAN_DEBUG_WITHOUT_FP
-
-/* If -m88100 is in effect, add -D__m88100__; similarly for -m88110.
- Here, the CPU_DEFAULT is assumed to be -m88100. */
-#undef CPP_SPEC
-#define CPP_SPEC "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \
- %{!m88000:%{!m88110:-D__m88100__}}"
-
-/* LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC defined in svr3.h.
- ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC redefined
- in svr4.h.
- CPP_SPEC, ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and
- STARTFILE_SPEC redefined in dgux.h. */
-\f
-/*** Run-time Target Specification ***/
-
-/* Names to predefine in the preprocessor for this target machine.
- Redefined in sysv3.h, sysv4.h, dgux.h, and luna.h. */
-#define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -D__CLASSIFY_TYPE__=2"
-
-#define TARGET_VERSION fprintf (stderr, " (%s)", VERSION_INFO1)
-
-#ifndef VERSION_INFO1
-#define VERSION_INFO1 "m88k"
-#endif
-
-/* Run-time compilation parameters selecting different hardware subsets. */
-
-/* Macro to define tables used to set the flags.
- This is a list in braces of pairs in braces,
- each pair being { "NAME", VALUE }
- where VALUE is the bits to set or minus the bits to clear.
- An empty string NAME is used to identify the default VALUE. */
-
-#define MASK_88100 0x00000001 /* Target m88100 */
-#define MASK_88110 0x00000002 /* Target m88110 */
-#define MASK_88000 (MASK_88100 | MASK_88110)
-
-#define MASK_OCS_DEBUG_INFO 0x00000004 /* Emit .tdesc info */
-#define MASK_OCS_FRAME_POSITION 0x00000008 /* Debug frame = CFA, not r30 */
-#define MASK_SVR4 0x00000010 /* Target is AT&T System V.4 */
-#define MASK_SVR3 0x00000020 /* Target is AT&T System V.3 */
-#define MASK_NO_UNDERSCORES 0x00000040 /* Don't emit a leading `_' */
-#define MASK_BIG_PIC 0x00000080 /* PIC with large got-rel's -fPIC */
-#define MASK_TRAP_LARGE_SHIFT 0x00000100 /* Trap if shift not <= 31 */
-#define MASK_HANDLE_LARGE_SHIFT 0x00000200 /* Handle shift count >= 32 */
-#define MASK_CHECK_ZERO_DIV 0x00000400 /* Check for int div. by 0 */
-#define MASK_USE_DIV 0x00000800 /* No signed div. checks */
-#define MASK_IDENTIFY_REVISION 0x00001000 /* Emit ident, with GCC rev */
-#define MASK_WARN_PASS_STRUCT 0x00002000 /* Warn about passed structs */
-#define MASK_OPTIMIZE_ARG_AREA 0x00004000 /* Save stack space */
-#define MASK_NO_SERIALIZE_VOLATILE 0x00008000 /* Serialize volatile refs */
-#define MASK_EITHER_LARGE_SHIFT (MASK_TRAP_LARGE_SHIFT | \
- MASK_HANDLE_LARGE_SHIFT)
-#define MASK_OMIT_LEAF_FRAME_POINTER 0x00020000 /* omit leaf frame pointers */
-
-
-#define TARGET_88100 ((target_flags & MASK_88000) == MASK_88100)
-#define TARGET_88110 ((target_flags & MASK_88000) == MASK_88110)
-#define TARGET_88000 ((target_flags & MASK_88000) == MASK_88000)
-
-#define TARGET_OCS_DEBUG_INFO (target_flags & MASK_OCS_DEBUG_INFO)
-#define TARGET_OCS_FRAME_POSITION (target_flags & MASK_OCS_FRAME_POSITION)
-#define TARGET_SVR4 (target_flags & MASK_SVR4)
-#define TARGET_SVR3 (target_flags & MASK_SVR3)
-#define TARGET_NO_UNDERSCORES (target_flags & MASK_NO_UNDERSCORES)
-#define TARGET_BIG_PIC (target_flags & MASK_BIG_PIC)
-#define TARGET_TRAP_LARGE_SHIFT (target_flags & MASK_TRAP_LARGE_SHIFT)
-#define TARGET_HANDLE_LARGE_SHIFT (target_flags & MASK_HANDLE_LARGE_SHIFT)
-#define TARGET_CHECK_ZERO_DIV (target_flags & MASK_CHECK_ZERO_DIV)
-#define TARGET_USE_DIV (target_flags & MASK_USE_DIV)
-#define TARGET_IDENTIFY_REVISION (target_flags & MASK_IDENTIFY_REVISION)
-#define TARGET_WARN_PASS_STRUCT (target_flags & MASK_WARN_PASS_STRUCT)
-#define TARGET_OPTIMIZE_ARG_AREA (target_flags & MASK_OPTIMIZE_ARG_AREA)
-#define TARGET_SERIALIZE_VOLATILE (!(target_flags & MASK_NO_SERIALIZE_VOLATILE))
-
-#define TARGET_EITHER_LARGE_SHIFT (target_flags & MASK_EITHER_LARGE_SHIFT)
-#define TARGET_OMIT_LEAF_FRAME_POINTER (target_flags & MASK_OMIT_LEAF_FRAME_POINTER)
-
-/* Redefined in sysv3.h, sysv4.h, and dgux.h. */
-#define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV)
-#define CPU_DEFAULT MASK_88100
-
-#define TARGET_SWITCHES \
- { \
- { "88110", MASK_88110 }, \
- { "88100", MASK_88100 }, \
- { "88000", MASK_88000 }, \
- { "ocs-debug-info", MASK_OCS_DEBUG_INFO }, \
- { "no-ocs-debug-info", -MASK_OCS_DEBUG_INFO }, \
- { "ocs-frame-position", MASK_OCS_FRAME_POSITION }, \
- { "no-ocs-frame-position", -MASK_OCS_FRAME_POSITION }, \
- { "svr4", MASK_SVR4 }, \
- { "svr3", -MASK_SVR4 }, \
- { "no-underscores", MASK_NO_UNDERSCORES }, \
- { "big-pic", MASK_BIG_PIC }, \
- { "trap-large-shift", MASK_TRAP_LARGE_SHIFT }, \
- { "handle-large-shift", MASK_HANDLE_LARGE_SHIFT }, \
- { "check-zero-division", MASK_CHECK_ZERO_DIV }, \
- { "no-check-zero-division", -MASK_CHECK_ZERO_DIV }, \
- { "use-div-instruction", MASK_USE_DIV }, \
- { "identify-revision", MASK_IDENTIFY_REVISION }, \
- { "warn-passed-structs", MASK_WARN_PASS_STRUCT }, \
- { "optimize-arg-area", MASK_OPTIMIZE_ARG_AREA }, \
- { "no-optimize-arg-area", -MASK_OPTIMIZE_ARG_AREA }, \
- { "no-serialize-volatile", MASK_NO_SERIALIZE_VOLATILE }, \
- { "serialize-volatile", -MASK_NO_SERIALIZE_VOLATILE }, \
- { "omit-leaf-frame-pointer", MASK_OMIT_LEAF_FRAME_POINTER }, \
- { "no-omit-leaf-frame-pointer", -MASK_OMIT_LEAF_FRAME_POINTER }, \
- SUBTARGET_SWITCHES \
- /* Default switches */ \
- { "", TARGET_DEFAULT }, \
- }
-
-/* Redefined in dgux.h. */
-#define SUBTARGET_SWITCHES
-
-/* Macro to define table for command options with values. */
-
-#define TARGET_OPTIONS { { "short-data-", &m88k_short_data }, \
- { "version-", &m88k_version } }
-
-/* Do any checking or such that is needed after processing the -m switches. */
-
-#define OVERRIDE_OPTIONS \
- do { \
- register int i; \
- \
- if ((target_flags & MASK_88000) == 0) \
- target_flags |= CPU_DEFAULT; \
- \
- if (TARGET_88110) \
- { \
- target_flags |= MASK_USE_DIV; \
- target_flags &= ~MASK_CHECK_ZERO_DIV; \
- } \
- \
- m88k_cpu = (TARGET_88000 ? PROCESSOR_M88000 \
- : (TARGET_88100 ? PROCESSOR_M88100 : PROCESSOR_M88110)); \
- \
- if (TARGET_BIG_PIC) \
- flag_pic = 2; \
- \
- if ((target_flags & MASK_EITHER_LARGE_SHIFT) == MASK_EITHER_LARGE_SHIFT) \
- error ("-mtrap-large-shift and -mhandle-large-shift are incompatible");\
- \
- if (TARGET_SVR4) \
- { \
- for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \
- reg_names[i]--; \
- m88k_pound_sign = "#"; \
- } \
- else \
- { \
- target_flags |= MASK_SVR3; \
- target_flags &= ~MASK_SVR4; \
- } \
- \
- if (m88k_short_data) \
- { \
- const char *p = m88k_short_data; \
- while (*p) \
- if (ISDIGIT (*p)) \
- p++; \
- else \
- { \
- error ("invalid option `-mshort-data-%s'", m88k_short_data); \
- break; \
- } \
- m88k_gp_threshold = atoi (m88k_short_data); \
- if (m88k_gp_threshold > 0x7fffffff) \
- error ("-mshort-data-%s is too large ", m88k_short_data); \
- if (flag_pic) \
- error ("-mshort-data-%s and PIC are incompatible", m88k_short_data); \
- } \
- if (TARGET_OMIT_LEAF_FRAME_POINTER) /* keep nonleaf frame pointers */ \
- flag_omit_frame_pointer = 1; \
- } while (0)
-\f
-/*** Storage Layout ***/
-
-/* Sizes in bits of the various types. */
-#define CHAR_TYPE_SIZE 8
-#define SHORT_TYPE_SIZE 16
-#define INT_TYPE_SIZE 32
-#define LONG_TYPE_SIZE 32
-#define LONG_LONG_TYPE_SIZE 64
-#define FLOAT_TYPE_SIZE 32
-#define DOUBLE_TYPE_SIZE 64
-#define LONG_DOUBLE_TYPE_SIZE 64
-
-/* Define this if most significant bit is lowest numbered
- in instructions that operate on numbered bit-fields.
- Somewhat arbitrary. It matches the bit field patterns. */
-#define BITS_BIG_ENDIAN 1
-
-/* Define this if most significant byte of a word is the lowest numbered.
- That is true on the m88000. */
-#define BYTES_BIG_ENDIAN 1
-
-/* Define this if most significant word of a multiword number is the lowest
- numbered.
- For the m88000 we can decide arbitrarily since there are no machine
- instructions for them. */
-#define WORDS_BIG_ENDIAN 1
-
-/* Number of bits in an addressable storage unit */
-#define BITS_PER_UNIT 8
-
-/* Width in bits of a "word", which is the contents of a machine register.
- Note that this is not necessarily the width of data type `int';
- if using 16-bit ints on a 68000, this would still be 32.
- But on a machine with 16-bit registers, this would be 16. */
-#define BITS_PER_WORD 32
-
-/* Width of a word, in units (bytes). */
-#define UNITS_PER_WORD 4
-
-/* Width in bits of a pointer.
- See also the macro `Pmode' defined below. */
-#define POINTER_SIZE 32
-
-/* Allocation boundary (in *bits*) for storing arguments in argument list. */
-#define PARM_BOUNDARY 32
-
-/* Largest alignment for stack parameters (if greater than PARM_BOUNDARY). */
-#define MAX_PARM_BOUNDARY 64
-
-/* Boundary (in *bits*) on which stack pointer should be aligned. */
-#define STACK_BOUNDARY 128
-
-/* Allocation boundary (in *bits*) for the code of a function. On the
- m88100, it is desirable to align to a cache line. However, SVR3 targets
- only provided 8 byte alignment. The m88110 cache is small, so align
- to an 8 byte boundary. Pack code tightly when compiling crtstuff.c. */
-#define FUNCTION_BOUNDARY (flag_inhibit_size_directive ? 32 : \
- (TARGET_88100 && TARGET_SVR4 ? 128 : 64))
-
-/* No data type wants to be aligned rounder than this. */
-#define BIGGEST_ALIGNMENT 64
-
-/* The best alignment to use in cases where we have a choice. */
-#define FASTEST_ALIGNMENT (TARGET_88100 ? 32 : 64)
-
-/* Make strings 4/8 byte aligned so strcpy from constants will be faster. */
-#define CONSTANT_ALIGNMENT(EXP, ALIGN) \
- ((TREE_CODE (EXP) == STRING_CST \
- && (ALIGN) < FASTEST_ALIGNMENT) \
- ? FASTEST_ALIGNMENT : (ALIGN))
-
-/* Make arrays of chars 4/8 byte aligned for the same reasons. */
-#define DATA_ALIGNMENT(TYPE, ALIGN) \
- (TREE_CODE (TYPE) == ARRAY_TYPE \
- && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
- && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
-
-/* Alignment of field after `int : 0' in a structure.
- Ignored with PCC_BITFIELD_TYPE_MATTERS. */
-/* #define EMPTY_FIELD_BOUNDARY 8 */
-
-/* Every structure's size must be a multiple of this. */
-#define STRUCTURE_SIZE_BOUNDARY 8
-
-/* Set this nonzero if move instructions will actually fail to work
- when given unaligned data. */
-#define STRICT_ALIGNMENT 1
-
-/* A bitfield declared as `int' forces `int' alignment for the struct. */
-#define PCC_BITFIELD_TYPE_MATTERS 1
-
-/* Maximum size (in bits) to use for the largest integral type that
- replaces a BLKmode type. */
-/* #define MAX_FIXED_MODE_SIZE 0 */
-
-/* Check a `double' value for validity for a particular machine mode.
- This is defined to avoid crashes outputting certain constants.
- Since we output the number in hex, the assembler won't choke on it. */
-/* #define CHECK_FLOAT_VALUE(MODE,VALUE) */
-
-/* A code distinguishing the floating point format of the target machine. */
-/* #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT */
-\f
-/*** Register Usage ***/
-
-/* Number of actual hardware registers.
- The hardware registers are assigned numbers for the compiler
- from 0 to just below FIRST_PSEUDO_REGISTER.
- All registers that the compiler knows about must be given numbers,
- even those that are not normally considered general registers.
-
- The m88100 has a General Register File (GRF) of 32 32-bit registers.
- The m88110 adds an Extended Register File (XRF) of 32 80-bit registers. */
-#define FIRST_PSEUDO_REGISTER 64
-#define FIRST_EXTENDED_REGISTER 32
-
-/* General notes on extended registers, their use and misuse.
-
- Possible good uses:
-
- spill area instead of memory.
- -waste if only used once
-
- floating point calculations
- -probably a waste unless we have run out of general purpose registers
-
- freeing up general purpose registers
- -e.g. may be able to have more loop invariants if floating
- point is moved into extended registers.
-
-
- I've noticed wasteful moves into and out of extended registers; e.g. a load
- into x21, then inside a loop a move into r24, then r24 used as input to
- an fadd. Why not just load into r24 to begin with? Maybe the new cse.c
- will address this. This wastes a move, but the load,store and move could
- have been saved had extended registers been used throughout.
- E.g. in the code following code, if z and xz are placed in extended
- registers, there is no need to save preserve registers.
-
- long c=1,d=1,e=1,f=1,g=1,h=1,i=1,j=1,k;
-
- double z=0,xz=4.5;
-
- foo(a,b)
- long a,b;
- {
- while (a < b)
- {
- k = b + c + d + e + f + g + h + a + i + j++;
- z += xz;
- a++;
- }
- printf("k= %d; z=%f;\n", k, z);
- }
-
- I've found that it is possible to change the constraints (putting * before
- the 'r' constraints int the fadd.ddd instruction) and get the entire
- addition and store to go into extended registers. However, this also
- forces simple addition and return of floating point arguments to a
- function into extended registers. Not the correct solution.
-
- Found the following note in local-alloc.c which may explain why I can't
- get both registers to be in extended registers since two are allocated in
- local-alloc and one in global-alloc. Doesn't explain (I don't believe)
- why an extended register is used instead of just using the preserve
- register.
-
- from local-alloc.c:
- We have provision to exempt registers, even when they are contained
- within the block, that can be tied to others that are not contained in it.
- This is so that global_alloc could process them both and tie them then.
- But this is currently disabled since tying in global_alloc is not
- yet implemented.
-
- The explanation of why the preserved register is not used is as follows,
- I believe. The registers are being allocated in order. Tying is not
- done so efficiently, so when it comes time to do the first allocation,
- there are no registers left to use without spilling except extended
- registers. Then when the next pseudo register needs a hard reg, there
- are still no registers to be had for free, but this one must be a GRF
- reg instead of an extended reg, so a preserve register is spilled. Thus
- the move from extended to GRF is necessitated. I do not believe this can
- be 'fixed' through the files in config/m88k.
-
- gcc seems to sometimes make worse use of register allocation -- not counting
- moves -- whenever extended registers are present. For example in the
- whetstone, the simple for loop (slightly modified)
- for(i = 1; i <= n1; i++)
- {
- x1 = (x1 + x2 + x3 - x4) * t;
- x2 = (x1 + x2 - x3 + x4) * t;
- x3 = (x1 - x2 + x3 + x4) * t;
- x4 = (x1 + x2 + x3 + x4) * t;
- }
- in general loads the high bits of the addresses of x2-x4 and i into registers
- outside the loop. Whenever extended registers are used, it loads all of
- these inside the loop. My conjecture is that since the 88110 has so many
- registers, and gcc makes no distinction at this point -- just that they are
- not fixed, that in loop.c it believes it can expect a number of registers
- to be available. Then it allocates 'too many' in local-alloc which causes
- problems later. 'Too many' are allocated because a large portion of the
- registers are extended registers and cannot be used for certain purposes
- ( e.g. hold the address of a variable). When this loop is compiled on its
- own, the problem does not occur. I don't know the solution yet, though it
- is probably in the base sources. Possibly a different way to calculate
- "threshold". */
-
-/* 1 for registers that have pervasive standard uses and are not available
- for the register allocator. Registers r14-r25 and x22-x29 are expected
- to be preserved across function calls.
-
- On the 88000, the standard uses of the General Register File (GRF) are:
- Reg 0 = Pseudo argument pointer (hardware fixed to 0).
- Reg 1 = Subroutine return pointer (hardware).
- Reg 2-9 = Parameter registers (OCS).
- Reg 10 = OCS reserved temporary.
- Reg 11 = Static link if needed [OCS reserved temporary].
- Reg 12 = Address of structure return (OCS).
- Reg 13 = OCS reserved temporary.
- Reg 14-25 = Preserved register set.
- Reg 26-29 = Reserved by OCS and ABI.
- Reg 30 = Frame pointer (Common use).
- Reg 31 = Stack pointer.
-
- The following follows the current 88open UCS specification for the
- Extended Register File (XRF):
- Reg 32 = x0 Always equal to zero
- Reg 33-53 = x1-x21 Temporary registers (Caller Save)
- Reg 54-61 = x22-x29 Preserver registers (Callee Save)
- Reg 62-63 = x30-x31 Reserved for future ABI use.
-
- Note: The current 88110 extended register mapping is subject to change.
- The bias towards caller-save registers is based on the
- presumption that memory traffic can potentially be reduced by
- allowing the "caller" to save only that part of the register
- which is actually being used. (i.e. don't do a st.x if a st.d
- is sufficient). Also, in scientific code (a.k.a. Fortran), the
- large number of variables defined in common blocks may require
- that almost all registers be saved across calls anyway. */
-
-#define FIXED_REGISTERS \
- {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}
-
-/* 1 for registers not available across function calls.
- These must include the FIXED_REGISTERS and also any
- registers that can be used without being saved.
- The latter must include the registers where values are returned
- and the register where structure-value addresses are passed.
- Aside from that, you can include as many other registers as you like. */
-
-#define CALL_USED_REGISTERS \
- {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
- 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1}
-
-/* Macro to conditionally modify fixed_regs/call_used_regs. */
-#define CONDITIONAL_REGISTER_USAGE \
- { \
- if (! TARGET_88110) \
- { \
- register int i; \
- for (i = FIRST_EXTENDED_REGISTER; i < FIRST_PSEUDO_REGISTER; i++) \
- { \
- fixed_regs[i] = 1; \
- call_used_regs[i] = 1; \
- } \
- } \
- if (flag_pic) \
- { \
- /* Current hack to deal with -fpic -O2 problems. */ \
- fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
- call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
- global_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
- } \
- }
-
-/* True if register is an extended register. */
-#define XRF_REGNO_P(N) ((N) < FIRST_PSEUDO_REGISTER && (N) >= FIRST_EXTENDED_REGISTER)
-
-/* Return number of consecutive hard regs needed starting at reg REGNO
- to hold something of mode MODE.
- This is ordinarily the length in words of a value of mode MODE
- but can be less for certain modes in special long registers.
-
- On the m88000, GRF registers hold 32-bits and XRF registers hold 80-bits.
- An XRF register can hold any mode, but two GRF registers are required
- for larger modes. */
-#define HARD_REGNO_NREGS(REGNO, MODE) \
- (XRF_REGNO_P (REGNO) \
- ? 1 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
-
-/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
-
- For double integers, we never put the value into an odd register so that
- the operators don't run into the situation where the high part of one of
- the inputs is the low part of the result register. (It's ok if the output
- registers are the same as the input registers.) The XRF registers can
- hold all modes, but only DF and SF modes can be manipulated in these
- registers. The compiler should be allowed to use these as a fast spill
- area. */
-#define HARD_REGNO_MODE_OK(REGNO, MODE) \
- (XRF_REGNO_P(REGNO) \
- ? (TARGET_88110 && GET_MODE_CLASS (MODE) == MODE_FLOAT) \
- : (((MODE) != DImode && (MODE) != DFmode && (MODE) != DCmode) \
- || ((REGNO) & 1) == 0))
-
-/* Value is 1 if it is a good idea to tie two pseudo registers
- when one has mode MODE1 and one has mode MODE2.
- If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
- for any hard reg, then this must be 0 for correct output. */
-#define MODES_TIEABLE_P(MODE1, MODE2) \
- (((MODE1) == DFmode || (MODE1) == DCmode || (MODE1) == DImode \
- || (TARGET_88110 && GET_MODE_CLASS (MODE1) == MODE_FLOAT)) \
- == ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode \
- || (TARGET_88110 && GET_MODE_CLASS (MODE2) == MODE_FLOAT)))
-
-/* Specify the registers used for certain standard purposes.
- The values of these macros are register numbers. */
-
-/* the m88000 pc isn't overloaded on a register that the compiler knows about. */
-/* #define PC_REGNUM */
-
-/* Register to use for pushing function arguments. */
-#define STACK_POINTER_REGNUM 31
-
-/* Base register for access to local variables of the function. */
-#define FRAME_POINTER_REGNUM 30
-
-/* Base register for access to arguments of the function. */
-#define ARG_POINTER_REGNUM 0
-
-/* Register used in cases where a temporary is known to be safe to use. */
-#define TEMP_REGNUM 10
-
-/* Register in which static-chain is passed to a function. */
-#define STATIC_CHAIN_REGNUM 11
-
-/* Register in which address to store a structure value
- is passed to a function. */
-#define STRUCT_VALUE_REGNUM 12
-
-/* Register to hold the addressing base for position independent
- code access to data items. */
-#define PIC_OFFSET_TABLE_REGNUM 25
-
-/* Order in which registers are preferred (most to least). Use temp
- registers, then param registers top down. Preserve registers are
- top down to maximize use of double memory ops for register save.
- The 88open reserved registers (r26-r29 and x30-x31) may commonly be used
- in most environments with the -fcall-used- or -fcall-saved- options. */
-#define REG_ALLOC_ORDER \
- { \
- 13, 12, 11, 10, 29, 28, 27, 26, \
- 62, 63, 9, 8, 7, 6, 5, 4, \
- 3, 2, 1, 53, 52, 51, 50, 49, \
- 48, 47, 46, 45, 44, 43, 42, 41, \
- 40, 39, 38, 37, 36, 35, 34, 33, \
- 25, 24, 23, 22, 21, 20, 19, 18, \
- 17, 16, 15, 14, 61, 60, 59, 58, \
- 57, 56, 55, 54, 30, 31, 0, 32}
-
-/* Order for leaf functions. */
-#define REG_LEAF_ALLOC_ORDER \
- { \
- 9, 8, 7, 6, 13, 12, 11, 10, \
- 29, 28, 27, 26, 62, 63, 5, 4, \
- 3, 2, 0, 53, 52, 51, 50, 49, \
- 48, 47, 46, 45, 44, 43, 42, 41, \
- 40, 39, 38, 37, 36, 35, 34, 33, \
- 25, 24, 23, 22, 21, 20, 19, 18, \
- 17, 16, 15, 14, 61, 60, 59, 58, \
- 57, 56, 55, 54, 30, 31, 1, 32}
-
-/* Switch between the leaf and non-leaf orderings. The purpose is to avoid
- write-over scoreboard delays between caller and callee. */
-#define ORDER_REGS_FOR_LOCAL_ALLOC \
-{ \
- static const int leaf[] = REG_LEAF_ALLOC_ORDER; \
- static const int nonleaf[] = REG_ALLOC_ORDER; \
- \
- memcpy (reg_alloc_order, regs_ever_live[1] ? nonleaf : leaf, \
- FIRST_PSEUDO_REGISTER * sizeof (int)); \
-}
-\f
-/*** Register Classes ***/
-
-/* Define the classes of registers for register constraints in the
- machine description. Also define ranges of constants.
-
- One of the classes must always be named ALL_REGS and include all hard regs.
- If there is more than one class, another class must be named NO_REGS
- and contain no registers.
-
- The name GENERAL_REGS must be the name of a class (or an alias for
- another name such as ALL_REGS). This is the class of registers
- that is allowed by "g" or "r" in a register constraint.
- Also, registers outside this class are allocated only when
- instructions express preferences for them.
-
- The classes must be numbered in nondecreasing order; that is,
- a larger-numbered class must never be contained completely
- in a smaller-numbered class.
-
- For any two classes, it is very desirable that there be another
- class that represents their union. */
-
-/* The m88000 hardware has two kinds of registers. In addition, we denote
- the arg pointer as a separate class. */
-
-enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS,
- XGRF_REGS, ALL_REGS, LIM_REG_CLASSES };
-
-#define N_REG_CLASSES (int) LIM_REG_CLASSES
-
-/* Give names of register classes as strings for dump file. */
-#define REG_CLASS_NAMES {"NO_REGS", "AP_REG", "XRF_REGS", "GENERAL_REGS", \
- "AGRF_REGS", "XGRF_REGS", "ALL_REGS" }
-
-/* Define which registers fit in which classes.
- This is an initializer for a vector of HARD_REG_SET
- of length N_REG_CLASSES. */
-#define REG_CLASS_CONTENTS {{0x00000000, 0x00000000}, \
- {0x00000001, 0x00000000}, \
- {0x00000000, 0xffffffff}, \
- {0xfffffffe, 0x00000000}, \
- {0xffffffff, 0x00000000}, \
- {0xfffffffe, 0xffffffff}, \
- {0xffffffff, 0xffffffff}}
-
-/* The same information, inverted:
- Return the class number of the smallest class containing
- reg number REGNO. This could be a conditional expression
- or could index an array. */
-#define REGNO_REG_CLASS(REGNO) \
- ((REGNO) ? ((REGNO < 32) ? GENERAL_REGS : XRF_REGS) : AP_REG)
-
-/* The class value for index registers, and the one for base regs. */
-#define BASE_REG_CLASS AGRF_REGS
-#define INDEX_REG_CLASS GENERAL_REGS
-
-/* Get reg_class from a letter such as appears in the machine description.
- For the 88000, the following class/letter is defined for the XRF:
- x - Extended register file */
-#define REG_CLASS_FROM_LETTER(C) \
- (((C) == 'x') ? XRF_REGS : NO_REGS)
-
-/* Macros to check register numbers against specific register classes.
- These assume that REGNO is a hard or pseudo reg number.
- They give nonzero only if REGNO is a hard reg of the suitable class
- or a pseudo reg currently allocated to a suitable hard reg.
- Since they use reg_renumber, they are safe only once reg_renumber
- has been allocated, which happens in local-alloc.c. */
-#define REGNO_OK_FOR_BASE_P(REGNO) \
- ((REGNO) < FIRST_EXTENDED_REGISTER \
- || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER)
-#define REGNO_OK_FOR_INDEX_P(REGNO) \
- (((REGNO) && (REGNO) < FIRST_EXTENDED_REGISTER) \
- || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER)
-
-/* Given an rtx X being reloaded into a reg required to be
- in class CLASS, return the class of reg to actually use.
- In general this is just CLASS; but on some machines
- in some cases it is preferable to use a more restrictive class.
- Double constants should be in a register iff they can be made cheaply. */
-#define PREFERRED_RELOAD_CLASS(X,CLASS) \
- (CONSTANT_P(X) && (CLASS == XRF_REGS) ? NO_REGS : (CLASS))
-
-/* Return the register class of a scratch register needed to load IN
- into a register of class CLASS in MODE. On the m88k, when PIC, we
- need a temporary when loading some addresses into a register. */
-#define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN) \
- ((flag_pic \
- && GET_CODE (IN) == CONST \
- && GET_CODE (XEXP (IN, 0)) == PLUS \
- && GET_CODE (XEXP (XEXP (IN, 0), 0)) == CONST_INT \
- && ! SMALL_INT (XEXP (XEXP (IN, 0), 1))) ? GENERAL_REGS : NO_REGS)
-
-/* Return the maximum number of consecutive registers
- needed to represent mode MODE in a register of class CLASS. */
-#define CLASS_MAX_NREGS(CLASS, MODE) \
- ((((CLASS) == XRF_REGS) ? 1 \
- : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)))
-
-/* Letters in the range `I' through `P' in a register constraint string can
- be used to stand for particular ranges of immediate operands. The C
- expression is true iff C is a known letter and VALUE is appropriate for
- that letter.
-
- For the m88000, the following constants are used:
- `I' requires a non-negative 16-bit value.
- `J' requires a non-positive 16-bit value.
- `K' requires a non-negative value < 32.
- `L' requires a constant with only the upper 16-bits set.
- `M' requires constant values that can be formed with `set'.
- `N' requires a negative value.
- `O' requires zero.
- `P' requires a non-negative value. */
-
-/* Quick tests for certain values. */
-#define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X)))
-#define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000)
-#define ADD_INT(X) (ADD_INTVAL (INTVAL (X)))
-#define ADD_INTVAL(I) ((unsigned) (I) + 0xffff < 0x1ffff)
-#define POWER_OF_2(I) ((I) && POWER_OF_2_or_0(I))
-#define POWER_OF_2_or_0(I) (((I) & ((unsigned)(I) - 1)) == 0)
-
-#define CONST_OK_FOR_LETTER_P(VALUE, C) \
- ((C) == 'I' ? SMALL_INTVAL (VALUE) \
- : (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \
- : (C) == 'K' ? (unsigned)(VALUE) < 32 \
- : (C) == 'L' ? ((VALUE) & 0xffff) == 0 \
- : (C) == 'M' ? integer_ok_for_set (VALUE) \
- : (C) == 'N' ? (VALUE) < 0 \
- : (C) == 'O' ? (VALUE) == 0 \
- : (C) == 'P' ? (VALUE) >= 0 \
- : 0)
-
-/* Similar, but for floating constants, and defining letters G and H.
- Here VALUE is the CONST_DOUBLE rtx itself. For the m88000, the
- constraints are: `G' requires zero, and `H' requires one or two. */
-#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
- ((C) == 'G' ? (CONST_DOUBLE_HIGH (VALUE) == 0 \
- && CONST_DOUBLE_LOW (VALUE) == 0) \
- : 0)
-
-/* Letters in the range `Q' through `U' in a register constraint string
- may be defined in a machine-dependent fashion to stand for arbitrary
- operand types.
-
- For the m88k, `Q' handles addresses in a call context. */
-
-#define EXTRA_CONSTRAINT(OP, C) \
- ((C) == 'Q' ? symbolic_address_p (OP) : 0)
-\f
-/*** Describing Stack Layout ***/
-
-/* Define this if pushing a word on the stack moves the stack pointer
- to a smaller address. */
-#define STACK_GROWS_DOWNWARD
-
-/* Define this if the addresses of local variable slots are at negative
- offsets from the frame pointer. */
-/* #define FRAME_GROWS_DOWNWARD */
-
-/* Offset from the frame pointer to the first local variable slot to be
- allocated. For the m88k, the debugger wants the return address (r1)
- stored at location r30+4, and the previous frame pointer stored at
- location r30. */
-#define STARTING_FRAME_OFFSET 8
-
-/* If we generate an insn to push BYTES bytes, this says how many the
- stack pointer really advances by. The m88k has no push instruction. */
-/* #define PUSH_ROUNDING(BYTES) */
-
-/* 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. */
-#define ACCUMULATE_OUTGOING_ARGS 1
-
-/* Offset from the stack pointer register to the first location at which
- outgoing arguments are placed. Use the default value zero. */
-/* #define STACK_POINTER_OFFSET 0 */
-
-/* Offset of first parameter from the argument pointer register value.
- Using an argument pointer, this is 0 for the m88k. GCC knows
- how to eliminate the argument pointer references if necessary. */
-#define FIRST_PARM_OFFSET(FNDECL) 0
-
-/* Define this 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.
-
- This space can either 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) 32
-
-/* Define this macro if REG_PARM_STACK_SPACE is defined but stack
- parameters don't skip the area specified by REG_PARM_STACK_SPACE.
- 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
-
-/* 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 also defined, the only effect of this
- macro is to determine whether the space is included in
- `current_function_outgoing_args_size'. */
-/* #define OUTGOING_REG_PARM_STACK_SPACE */
-
-/* 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) ... */
-
-/* Value is the number of bytes of arguments automatically
- popped when returning from a subroutine call.
- FUNDECL is the declaration node of the function (as a tree),
- FUNTYPE is the data type of the function (as a tree),
- or for a library call it is an identifier node for the subroutine name.
- SIZE is the number of bytes of arguments passed on the stack. */
-#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
-
-/* Define how to find the value returned by a function.
- VALTYPE is the data type of the value (as a tree).
- If the precise function being called is known, FUNC is its FUNCTION_DECL;
- otherwise, FUNC is 0. */
-#define FUNCTION_VALUE(VALTYPE, FUNC) \
- gen_rtx_REG (TYPE_MODE (VALTYPE) == BLKmode ? SImode : TYPE_MODE (VALTYPE), \
- 2)
-
-/* Define this if it differs from FUNCTION_VALUE. */
-/* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) ... */
-
-/* Disable the promotion of some structures and unions to registers. */
-#define RETURN_IN_MEMORY(TYPE) \
- (TYPE_MODE (TYPE) == BLKmode \
- || ((TREE_CODE (TYPE) == RECORD_TYPE || TREE_CODE(TYPE) == UNION_TYPE) \
- && !(TYPE_MODE (TYPE) == SImode \
- || (TYPE_MODE (TYPE) == BLKmode \
- && TYPE_ALIGN (TYPE) == BITS_PER_WORD \
- && int_size_in_bytes (TYPE) == UNITS_PER_WORD))))
-
-/* Don't default to pcc-struct-return, because we have already specified
- exactly how to return structures in the RETURN_IN_MEMORY macro. */
-#define DEFAULT_PCC_STRUCT_RETURN 0
-
-/* Define how to find the value returned by a library function
- assuming the value has mode MODE. */
-#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 2)
-
-/* True if N is a possible register number for a function value
- as seen by the caller. */
-#define FUNCTION_VALUE_REGNO_P(N) ((N) == 2)
-
-/* Determine whether a function argument is passed in a register, and
- which register. See m88k.c. */
-#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
- m88k_function_arg (CUM, MODE, TYPE, NAMED)
-
-/* Define this if it differs from FUNCTION_ARG. */
-/* #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) ... */
-
-/* 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. */
-#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0)
-
-/* 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. */
-#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) (0)
-
-/* A C type for declaring a variable that is used as the first argument
- of `FUNCTION_ARG' and other related values. It suffices to count
- the number of words of argument so far. */
-#define CUMULATIVE_ARGS int
-
-/* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a
- function whose data type is FNTYPE. For a library call, FNTYPE is 0. */
-#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) ((CUM) = 0)
-
-/* 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. (TYPE is null for libcalls where that
- information may not be available.) */
-#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
- do { \
- enum machine_mode __mode = (TYPE) ? TYPE_MODE (TYPE) : (MODE); \
- if ((CUM & 1) \
- && (__mode == DImode || __mode == DFmode \
- || ((TYPE) && TYPE_ALIGN (TYPE) > BITS_PER_WORD))) \
- CUM++; \
- CUM += (((__mode != BLKmode) \
- ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) \
- + 3) / 4; \
- } while (0)
-
-/* True if N is a possible register number for function argument passing.
- On the m88000, these are registers 2 through 9. */
-#define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2)
-
-/* 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.
-
- This macro does not control the *amount* of padding; that is always
- just enough to reach the next multiple of `FUNCTION_ARG_BOUNDARY'. */
-#define FUNCTION_ARG_PADDING(MODE, TYPE) \
- ((MODE) == BLKmode \
- || ((TYPE) && (TREE_CODE (TYPE) == RECORD_TYPE \
- || TREE_CODE (TYPE) == UNION_TYPE)) \
- ? upward : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY ? downward : none)
-
-/* 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) \
- (((TYPE) ? TYPE_ALIGN (TYPE) : GET_MODE_BITSIZE (MODE)) <= PARM_BOUNDARY \
- ? PARM_BOUNDARY : 2 * PARM_BOUNDARY)
-
-/* Generate necessary RTL for __builtin_saveregs().
- ARGLIST is the argument list; see expr.c. */
-#define EXPAND_BUILTIN_SAVEREGS() m88k_builtin_saveregs ()
-
-/* Define the `__builtin_va_list' type for the ABI. */
-#define BUILD_VA_LIST_TYPE(VALIST) \
- (VALIST) = m88k_build_va_list ()
-
-/* Implement `va_start' for varargs and stdarg. */
-#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
- m88k_va_start (stdarg, valist, nextarg)
-
-/* Implement `va_arg'. */
-#define EXPAND_BUILTIN_VA_ARG(valist, type) \
- m88k_va_arg (valist, type)
-
-/* Output assembler code to FILE to increment profiler label # LABELNO
- for profiling a function entry. Redefined in sysv3.h, sysv4.h and
- dgux.h. */
-#define FUNCTION_PROFILER(FILE, LABELNO) \
- output_function_profiler (FILE, LABELNO, "mcount", 1)
-
-/* Maximum length in instructions of the code output by FUNCTION_PROFILER. */
-#define FUNCTION_PROFILER_LENGTH (5+3+1+5)
-
-/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
- the stack pointer does not matter. The value is tested only in
- functions that have frame pointers.
- No definition is equivalent to always zero. */
-#define EXIT_IGNORE_STACK (1)
-
-/* Value should be nonzero if functions must have frame pointers.
- Zero means the frame pointer need not be set up (and parms
- may be accessed via the stack pointer) in functions that seem suitable.
- This is computed in `reload', in reload1.c. */
-#define FRAME_POINTER_REQUIRED \
-(current_function_varargs \
- || (TARGET_OMIT_LEAF_FRAME_POINTER && !leaf_function_p ()) \
- || (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION))
-
-/* Definitions for register eliminations.
-
- We have two registers that can be eliminated on the m88k. First, the
- frame pointer register can often be eliminated in favor of the stack
- pointer register. Secondly, the argument pointer register can always be
- eliminated; it is replaced with either the stack or frame pointer. */
-
-/* This is an array of structures. Each structure initializes one pair
- of eliminable registers. The "from" register number is given first,
- followed by "to". Eliminations of the same "from" register are listed
- in order of preference. */
-#define ELIMINABLE_REGS \
-{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
- { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
- { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
-
-/* Given FROM and TO register numbers, say whether this elimination
- is allowed. */
-#define CAN_ELIMINATE(FROM, TO) \
- (!((FROM) == FRAME_POINTER_REGNUM && FRAME_POINTER_REQUIRED))
-
-/* Define the offset between two registers, one to be eliminated, and the other
- its replacement, at the start of a routine. */
-#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
-{ m88k_layout_frame (); \
- if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
- (OFFSET) = m88k_fp_offset; \
- else if ((FROM) == ARG_POINTER_REGNUM && (TO) == FRAME_POINTER_REGNUM) \
- (OFFSET) = m88k_stack_size - m88k_fp_offset; \
- else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
- (OFFSET) = m88k_stack_size; \
- else \
- abort (); \
-}
-\f
-/*** Trampolines for Nested Functions ***/
-
-/* Output assembler code for a block containing the constant parts
- of a trampoline, leaving space for the variable parts.
-
- This block is placed on the stack and filled in. It is aligned
- 0 mod 128 and those portions that are executed are constant.
- This should work for instruction caches that have cache lines up
- to the aligned amount (128 is arbitrary), provided no other code
- producer is attempting to play the same game. This of course is
- in violation of any number of 88open standards. */
-
-#define TRAMPOLINE_TEMPLATE(FILE) \
-{ \
- char buf[256]; \
- static int labelno = 0; \
- labelno++; \
- ASM_GENERATE_INTERNAL_LABEL (buf, "LTRMP", labelno); \
- /* Save the return address (r1) in the static chain reg (r11). */ \
- fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[11], reg_names[1]); \
- /* Locate this block; transfer to the next instruction. */ \
- fprintf (FILE, "\tbsr\t %s\n", &buf[1]); \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, "LTRMP", labelno); \
- /* Save r10; use it as the relative pointer; restore r1. */ \
- fprintf (FILE, "\tst\t %s,%s,24\n", reg_names[10], reg_names[1]); \
- fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[10], reg_names[1]); \
- fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[1], reg_names[11]); \
- /* Load the function's address and go there. */ \
- fprintf (FILE, "\tld\t %s,%s,32\n", reg_names[11], reg_names[10]); \
- fprintf (FILE, "\tjmp.n\t %s\n", reg_names[11]); \
- /* Restore r10 and load the static chain register. */ \
- fprintf (FILE, "\tld.d\t %s,%s,24\n", reg_names[10], reg_names[10]); \
- /* Storage: r10 save area, static chain, function address. */ \
- assemble_aligned_integer (UNITS_PER_WORD, const0_rtx); \
- assemble_aligned_integer (UNITS_PER_WORD, const0_rtx); \
- assemble_aligned_integer (UNITS_PER_WORD, const0_rtx); \
-}
-
-/* Length in units of the trampoline for entering a nested function.
- This is really two components. The first 32 bytes are fixed and
- must be copied; the last 12 bytes are just storage that's filled
- in later. So for allocation purposes, it's 32+12 bytes, but for
- initialization purposes, it's 32 bytes. */
-
-#define TRAMPOLINE_SIZE (32+12)
-
-/* Alignment required for a trampoline. 128 is used to find the
- beginning of a line in the instruction cache and to allow for
- instruction cache lines of up to 128 bytes. */
-
-#define TRAMPOLINE_ALIGNMENT 128
-
-/* Emit RTL insns to initialize the variable parts of a trampoline.
- FNADDR is an RTX for the address of the function's pure code.
- CXT is an RTX for the static chain value for the function. */
-
-#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
-{ \
- emit_move_insn (gen_rtx_MEM (SImode, plus_constant (TRAMP, 40)), FNADDR); \
- emit_move_insn (gen_rtx_MEM (SImode, plus_constant (TRAMP, 36)), CXT); \
-}
-
-/*** Library Subroutine Names ***/
-
-/* 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'. */
-#define TARGET_MEM_FUNCTIONS
-\f
-/*** Addressing Modes ***/
-
-#define EXTRA_CC_MODES CC(CCEVENmode, "CCEVEN")
-
-#define SELECT_CC_MODE(OP,X,Y) CCmode
-
-/* #define HAVE_POST_INCREMENT 0 */
-/* #define HAVE_POST_DECREMENT 0 */
-
-/* #define HAVE_PRE_DECREMENT 0 */
-/* #define HAVE_PRE_INCREMENT 0 */
-
-/* Recognize any constant value that is a valid address.
- When PIC, we do not accept an address that would require a scratch reg
- to load into a register. */
-
-#define CONSTANT_ADDRESS_P(X) \
- (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
- || GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH \
- || (GET_CODE (X) == CONST \
- && ! (flag_pic && pic_address_needs_scratch (X))))
-
-
-/* Maximum number of registers that can appear in a valid memory address. */
-#define MAX_REGS_PER_ADDRESS 2
-
-/* The condition for memory shift insns. */
-#define SCALED_ADDRESS_P(ADDR) \
- (GET_CODE (ADDR) == PLUS \
- && (GET_CODE (XEXP (ADDR, 0)) == MULT \
- || GET_CODE (XEXP (ADDR, 1)) == MULT))
-
-/* Can the reference to X be made short? */
-#define SHORT_ADDRESS_P(X,TEMP) \
- ((TEMP) = (GET_CODE (X) == CONST ? get_related_value (X) : X), \
- ((TEMP) && GET_CODE (TEMP) == SYMBOL_REF && SYMBOL_REF_FLAG (TEMP)))
-
-/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
- that is a valid memory address for an instruction.
- The MODE argument is the machine mode for the MEM expression
- that wants to use this address.
-
- On the m88000, a legitimate address has the form REG, REG+REG,
- REG+SMALLINT, REG+(REG*modesize) (REG[REG]), or SMALLINT.
-
- The register elimination process should deal with the argument
- pointer and frame pointer changing to REG+SMALLINT. */
-
-#define LEGITIMATE_INDEX_P(X, MODE) \
- ((GET_CODE (X) == CONST_INT \
- && SMALL_INT (X)) \
- || (REG_P (X) \
- && REG_OK_FOR_INDEX_P (X)) \
- || (GET_CODE (X) == MULT \
- && REG_P (XEXP (X, 0)) \
- && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \
- && GET_CODE (XEXP (X, 1)) == CONST_INT \
- && INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE)))
-
-#define RTX_OK_FOR_BASE_P(X) \
- ((GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \
- || (GET_CODE (X) == SUBREG \
- && GET_CODE (SUBREG_REG (X)) == REG \
- && REG_OK_FOR_BASE_P (SUBREG_REG (X))))
-
-#define RTX_OK_FOR_INDEX_P(X) \
- ((GET_CODE (X) == REG && REG_OK_FOR_INDEX_P (X)) \
- || (GET_CODE (X) == SUBREG \
- && GET_CODE (SUBREG_REG (X)) == REG \
- && REG_OK_FOR_INDEX_P (SUBREG_REG (X))))
-
-#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
-{ \
- register rtx _x; \
- if (REG_P (X)) \
- { \
- if (REG_OK_FOR_BASE_P (X)) \
- goto ADDR; \
- } \
- else if (GET_CODE (X) == PLUS) \
- { \
- register rtx _x0 = XEXP (X, 0); \
- register rtx _x1 = XEXP (X, 1); \
- if ((flag_pic \
- && _x0 == pic_offset_table_rtx \
- && (flag_pic == 2 \
- ? RTX_OK_FOR_BASE_P (_x1) \
- : (GET_CODE (_x1) == SYMBOL_REF \
- || GET_CODE (_x1) == LABEL_REF))) \
- || (REG_P (_x0) \
- && (REG_OK_FOR_BASE_P (_x0) \
- && LEGITIMATE_INDEX_P (_x1, MODE))) \
- || (REG_P (_x1) \
- && (REG_OK_FOR_BASE_P (_x1) \
- && LEGITIMATE_INDEX_P (_x0, MODE)))) \
- goto ADDR; \
- } \
- else if (GET_CODE (X) == LO_SUM) \
- { \
- register rtx _x0 = XEXP (X, 0); \
- register rtx _x1 = XEXP (X, 1); \
- if (((REG_P (_x0) \
- && REG_OK_FOR_BASE_P (_x0)) \
- || (GET_CODE (_x0) == SUBREG \
- && REG_P (SUBREG_REG (_x0)) \
- && REG_OK_FOR_BASE_P (SUBREG_REG (_x0)))) \
- && CONSTANT_P (_x1)) \
- goto ADDR; \
- } \
- else if (GET_CODE (X) == CONST_INT \
- && SMALL_INT (X)) \
- goto ADDR; \
- else if (SHORT_ADDRESS_P (X, _x)) \
- goto ADDR; \
-}
-
-/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
- and check its validity for a certain class.
- We have two alternate definitions for each of them.
- The usual definition accepts all pseudo regs; the other rejects
- them unless they have been allocated suitable hard regs.
- The symbol REG_OK_STRICT causes the latter definition to be used.
-
- Most source files want to accept pseudo regs in the hope that
- they will get allocated to the class that the insn wants them to be in.
- Source files for reload pass need to be strict.
- After reload, it makes no difference, since pseudo regs have
- been eliminated by then. */
-
-#ifndef REG_OK_STRICT
-
-/* Nonzero if X is a hard reg that can be used as an index
- or if it is a pseudo reg. Not the argument pointer. */
-#define REG_OK_FOR_INDEX_P(X) \
- (!XRF_REGNO_P(REGNO (X)))
-/* Nonzero if X is a hard reg that can be used as a base reg
- or if it is a pseudo reg. */
-#define REG_OK_FOR_BASE_P(X) (REG_OK_FOR_INDEX_P (X))
-
-#else
-
-/* Nonzero if X is a hard reg that can be used as an index. */
-#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
-/* Nonzero if X is a hard reg that can be used as a base reg. */
-#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
-
-#endif
-
-/* Try machine-dependent ways of modifying an illegitimate address
- to be legitimate. If we find one, return the new, valid address.
- This macro is used in only one place: `memory_address' in explow.c.
-
- OLDX is the address as it was before break_out_memory_refs was called.
- In some cases it is useful to look at this to decide what needs to be done.
-
- MODE and WIN are passed so that this macro can use
- GO_IF_LEGITIMATE_ADDRESS.
-
- It is always safe for this macro to do nothing. It exists to recognize
- opportunities to optimize the output. */
-
-/* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */
-
-#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \
-{ \
- if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
- (X) = gen_rtx_PLUS (SImode, XEXP (X, 0), \
- copy_to_mode_reg (SImode, XEXP (X, 1))); \
- if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
- (X) = gen_rtx_PLUS (SImode, XEXP (X, 1), \
- copy_to_mode_reg (SImode, XEXP (X, 0))); \
- if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \
- (X) = gen_rtx_PLUS (SImode, XEXP (X, 1), \
- force_operand (XEXP (X, 0), 0)); \
- if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \
- (X) = gen_rtx_PLUS (SImode, XEXP (X, 0), \
- force_operand (XEXP (X, 1), 0)); \
- if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS) \
- (X) = gen_rtx_PLUS (Pmode, force_operand (XEXP (X, 0), NULL_RTX),\
- XEXP (X, 1)); \
- if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS) \
- (X) = gen_rtx_PLUS (Pmode, XEXP (X, 0), \
- force_operand (XEXP (X, 1), NULL_RTX)); \
- if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
- || GET_CODE (X) == LABEL_REF) \
- (X) = legitimize_address (flag_pic, X, 0, 0); \
- if (memory_address_p (MODE, X)) \
- goto WIN; }
-
-/* Go to LABEL if ADDR (a legitimate address expression)
- has an effect that depends on the machine mode it is used for.
- On the m88000 this is never true. */
-
-#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
-
-/* Nonzero if the constant value X is a legitimate general operand.
- It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
-#define LEGITIMATE_CONSTANT_P(X) (1)
-
-/* Define this, so that when PIC, reload won't try to reload invalid
- addresses which require two reload registers. */
-
-#define LEGITIMATE_PIC_OPERAND_P(X) (! pic_address_needs_scratch (X))
-
-\f
-/*** Condition Code Information ***/
-
-/* C code for a data type which is used for declaring the `mdep'
- component of `cc_status'. It defaults to `int'. */
-/* #define CC_STATUS_MDEP int */
-
-/* A C expression to initialize the `mdep' field to "empty". */
-/* #define CC_STATUS_MDEP_INIT (cc_status.mdep = 0) */
-
-/* Macro to zap the normal portions of CC_STATUS, but leave the
- machine dependent parts (ie, literal synthesis) alone. */
-/* #define CC_STATUS_INIT_NO_MDEP \
- (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0) */
-
-/* When using a register to hold the condition codes, the cc_status
- mechanism cannot be used. */
-#define NOTICE_UPDATE_CC(EXP, INSN) (0)
-\f
-/*** Miscellaneous Parameters ***/
-
-/* Define the codes that are matched by predicates in m88k.c. */
-#define PREDICATE_CODES \
- {"move_operand", {SUBREG, REG, CONST_INT, LO_SUM, MEM}}, \
- {"call_address_operand", {SUBREG, REG, SYMBOL_REF, LABEL_REF, CONST}}, \
- {"arith_operand", {SUBREG, REG, CONST_INT}}, \
- {"arith5_operand", {SUBREG, REG, CONST_INT}}, \
- {"arith32_operand", {SUBREG, REG, CONST_INT}}, \
- {"arith64_operand", {SUBREG, REG, CONST_INT}}, \
- {"int5_operand", {CONST_INT}}, \
- {"int32_operand", {CONST_INT}}, \
- {"add_operand", {SUBREG, REG, CONST_INT}}, \
- {"reg_or_bbx_mask_operand", {SUBREG, REG, CONST_INT}}, \
- {"real_or_0_operand", {SUBREG, REG, CONST_DOUBLE}}, \
- {"reg_or_0_operand", {SUBREG, REG, CONST_INT}}, \
- {"relop", {EQ, NE, LT, LE, GE, GT, LTU, LEU, GEU, GTU}}, \
- {"even_relop", {EQ, LT, GT, LTU, GTU}}, \
- {"odd_relop", { NE, LE, GE, LEU, GEU}}, \
- {"partial_ccmode_register_operand", { SUBREG, REG}}, \
- {"relop_no_unsigned", {EQ, NE, LT, LE, GE, GT}}, \
- {"equality_op", {EQ, NE}}, \
- {"pc_or_label_ref", {PC, LABEL_REF}},
-
-/* A list of predicates that do special things with modes, and so
- should not elicit warnings for VOIDmode match_operand. */
-
-#define SPECIAL_MODE_PREDICATES \
- "partial_ccmode_register_operand", \
- "pc_or_label_ref",
-
-/* The case table contains either words or branch instructions. This says
- which. We always claim that the vector is PC-relative. It is position
- independent when -fpic is used. */
-#define CASE_VECTOR_INSNS (TARGET_88100 || flag_pic)
-
-/* 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 4 for machines with a casesi instruction and 5 otherwise.
- The best 88110 number is around 7, though the exact number isn't yet
- known. A third alternative for the 88110 is to use a binary tree of
- bb1 instructions on bits 2/1/0 if the range is dense. This may not
- win very much though. */
-#define CASE_VALUES_THRESHOLD (TARGET_88100 ? 4 : 7)
-
-/* Define this as 1 if `char' should by default be signed; else as 0. */
-#define DEFAULT_SIGNED_CHAR 1
-
-/* The 88open ABI says size_t is unsigned int. */
-#define SIZE_TYPE "unsigned int"
-
-/* Allow and ignore #sccs directives */
-#define SCCS_DIRECTIVE
-
-/* Handle #pragma pack and sometimes #pragma weak. */
-#define HANDLE_SYSV_PRAGMA
-
-/* Tell when to handle #pragma weak. This is only done for V.4. */
-#define SUPPORTS_WEAK TARGET_SVR4
-#define SUPPORTS_ONE_ONLY TARGET_SVR4
-
-/* Max number of bytes we can move from memory to memory
- in one reasonably fast instruction. */
-#define MOVE_MAX 8
-
-/* Define if normal loads of shorter-than-word items from memory clears
- the rest of the bigs in the register. */
-#define BYTE_LOADS_ZERO_EXTEND
-
-/* Zero if access to memory by bytes is faster. */
-#define SLOW_BYTE_ACCESS 1
-
-/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
- is done just by pretending it is already truncated. */
-#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
-
-/* Define this if addresses of constant functions
- shouldn't be put through pseudo regs where they can be cse'd.
- Desirable on machines where ordinary constants are expensive
- but a CALL with constant address is cheap. */
-#define NO_FUNCTION_CSE
-
-/* Define this macro if an argument declared as `char' or
- `short' in a prototype 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 1
-
-/* Define this macro if a float function always returns float
- (even in traditional mode). Redefined in luna.h. */
-#define TRADITIONAL_RETURN_FLOAT
-
-/* We assume that the store-condition-codes instructions store 0 for false
- and some other value for true. This is the value stored for true. */
-#define STORE_FLAG_VALUE (-1)
-
-/* Specify the machine mode that pointers have.
- After generation of rtl, the compiler makes no further distinction
- between pointers and any other objects of this machine mode. */
-#define Pmode SImode
-
-/* A function address in a call instruction
- is a word address (for indexing purposes)
- so give the MEM rtx word mode. */
-#define FUNCTION_MODE SImode
-
-/* A barrier will be aligned so account for the possible expansion.
- A volatile load may be preceded by a serializing instruction.
- Account for profiling code output at NOTE_INSN_PROLOGUE_END.
- Account for block profiling code at basic block boundaries. */
-#define ADJUST_INSN_LENGTH(RTX, LENGTH) \
- if (GET_CODE (RTX) == BARRIER \
- || (TARGET_SERIALIZE_VOLATILE \
- && GET_CODE (RTX) == INSN \
- && GET_CODE (PATTERN (RTX)) == SET \
- && ((GET_CODE (SET_SRC (PATTERN (RTX))) == MEM \
- && MEM_VOLATILE_P (SET_SRC (PATTERN (RTX))))))) \
- LENGTH += 1; \
- else if (GET_CODE (RTX) == NOTE \
- && NOTE_LINE_NUMBER (RTX) == NOTE_INSN_PROLOGUE_END) \
- { \
- if (current_function_profile) \
- LENGTH += (FUNCTION_PROFILER_LENGTH + REG_PUSH_LENGTH \
- + REG_POP_LENGTH); \
- } \
-
-/* Track the state of the last volatile memory reference. Clear the
- state with CC_STATUS_INIT for now. */
-#define CC_STATUS_INIT m88k_volatile_code = '\0'
-
-/* Compute the cost of computing a constant rtl expression RTX
- whose rtx-code is CODE. The body of this macro is a portion
- of a switch statement. If the code is computed here,
- return it with a return statement. Otherwise, break from the switch.
-
- We assume that any 16 bit integer can easily be recreated, so we
- indicate 0 cost, in an attempt to get GCC not to optimize things
- like comparison against a constant.
-
- The cost of CONST_DOUBLE is zero (if it can be placed in an insn, it
- is as good as a register; since it can't be placed in any insn, it
- won't do anything in cse, but it will cause expand_binop to pass the
- constant to the define_expands). */
-#define CONST_COSTS(RTX,CODE,OUTER_CODE) \
- case CONST_INT: \
- if (SMALL_INT (RTX)) \
- return 0; \
- else if (SMALL_INTVAL (- INTVAL (RTX))) \
- return 2; \
- else if (classify_integer (SImode, INTVAL (RTX)) != m88k_oru_or) \
- return 4; \
- return 7; \
- case HIGH: \
- return 2; \
- case CONST: \
- case LABEL_REF: \
- case SYMBOL_REF: \
- if (flag_pic) \
- return (flag_pic == 2) ? 11 : 8; \
- return 5; \
- case CONST_DOUBLE: \
- return 0;
-
-/* Provide the costs of an addressing mode that contains ADDR.
- If ADDR is not a valid address, its cost is irrelevant.
- REG+REG is made slightly more expensive because it might keep
- a register live for longer than we might like. */
-#define ADDRESS_COST(ADDR) \
- (GET_CODE (ADDR) == REG ? 1 : \
- GET_CODE (ADDR) == LO_SUM ? 1 : \
- GET_CODE (ADDR) == HIGH ? 2 : \
- GET_CODE (ADDR) == MULT ? 1 : \
- GET_CODE (ADDR) != PLUS ? 4 : \
- (REG_P (XEXP (ADDR, 0)) && REG_P (XEXP (ADDR, 1))) ? 2 : 1)
-
-/* Provide the costs of a rtl expression. This is in the body of a
- switch on CODE. */
-#define RTX_COSTS(X,CODE,OUTER_CODE) \
- case MEM: \
- return COSTS_N_INSNS (2); \
- case MULT: \
- return COSTS_N_INSNS (3); \
- case DIV: \
- case UDIV: \
- case MOD: \
- case UMOD: \
- return COSTS_N_INSNS (38);
-
-/* A C expressions returning the cost of moving data of MODE from a register
- to or from memory. This is more costly than between registers. */
-#define MEMORY_MOVE_COST(MODE,CLASS,IN) 4
-
-/* Provide the cost of a branch. Exact meaning under development. */
-#define BRANCH_COST (TARGET_88100 ? 1 : 2)
-
-/* Do not break .stabs pseudos into continuations. */
-#define DBX_CONTIN_LENGTH 0
-\f
-/*** Output of Assembler Code ***/
-
-/* Control the assembler format that we output. */
-
-/* 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 ";"
-
-/* Allow pseudo-ops to be overridden. Override these in svr[34].h. */
-#undef ASCII_DATA_ASM_OP
-#undef CONST_SECTION_ASM_OP
-#undef CTORS_SECTION_ASM_OP
-#undef DTORS_SECTION_ASM_OP
-#undef TARGET_ASM_NAMED_SECTION
-#undef INIT_SECTION_ASM_OP
-#undef FINI_SECTION_ASM_OP
-#undef TYPE_ASM_OP
-#undef SIZE_ASM_OP
-#undef SET_ASM_OP
-#undef SKIP_ASM_OP
-#undef COMMON_ASM_OP
-#undef ALIGN_ASM_OP
-#undef IDENT_ASM_OP
-
-/* These are used in varasm.c as well. */
-#define TEXT_SECTION_ASM_OP "\ttext"
-#define DATA_SECTION_ASM_OP "\tdata"
-
-/* Other sections. */
-#define CONST_SECTION_ASM_OP (TARGET_SVR4 \
- ? "\tsection\t .rodata,\"a\"" \
- : "\tsection\t .rodata,\"x\"")
-#define TDESC_SECTION_ASM_OP (TARGET_SVR4 \
- ? "\tsection\t .tdesc,\"a\"" \
- : "\tsection\t .tdesc,\"x\"")
-
-/* These must be constant strings for crtstuff.c. */
-#define CTORS_SECTION_ASM_OP "\tsection\t .ctors,\"d\""
-#define DTORS_SECTION_ASM_OP "\tsection\t .dtors,\"d\""
-#define INIT_SECTION_ASM_OP "\tsection\t .init,\"x\""
-#define FINI_SECTION_ASM_OP "\tsection\t .fini,\"x\""
-
-/* These are pretty much common to all assemblers. */
-#define IDENT_ASM_OP "\tident\t"
-#define FILE_ASM_OP "\tfile\t"
-#define SECTION_ASM_OP "\tsection\t"
-#define SET_ASM_OP "\tdef\t"
-#define GLOBAL_ASM_OP "\tglobal\t"
-#define ALIGN_ASM_OP "\talign\t"
-#define SKIP_ASM_OP "\tzero\t"
-#define COMMON_ASM_OP "\tcomm\t"
-#define BSS_ASM_OP "\tbss\t"
-#define FLOAT_ASM_OP "\tfloat\t"
-#define DOUBLE_ASM_OP "\tdouble\t"
-#define ASCII_DATA_ASM_OP "\tstring\t"
-
-/* These are particular to the global pool optimization. */
-#define SBSS_ASM_OP "\tsbss\t"
-#define SCOMM_ASM_OP "\tscomm\t"
-#define SDATA_SECTION_ASM_OP "\tsdata"
-
-/* These are specific to PIC. */
-#define TYPE_ASM_OP "\ttype\t"
-#define SIZE_ASM_OP "\tsize\t"
-#ifndef AS_BUG_POUND_TYPE /* Faulty assemblers require @ rather than #. */
-#undef TYPE_OPERAND_FMT
-#define TYPE_OPERAND_FMT "#%s"
-#endif
-
-/* This is how we tell the assembler that a symbol is weak. */
-
-#undef ASM_WEAKEN_LABEL
-#define ASM_WEAKEN_LABEL(FILE,NAME) \
- do { fputs ("\tweak\t", FILE); assemble_name (FILE, NAME); \
- fputc ('\n', FILE); } while (0)
-
-/* These are specific to version 03.00 assembler syntax. */
-#define INTERNAL_ASM_OP "\tlocal\t"
-#define VERSION_ASM_OP "\tversion\t"
-#define PUSHSECTION_ASM_OP "\tsection\t"
-#define POPSECTION_ASM_OP "\tprevious"
-
-/* These are specific to the version 04.00 assembler syntax. */
-#define REQUIRES_88110_ASM_OP "\trequires_88110"
-
-/* Output any initial stuff to the assembly file. Always put out
- a file directive, even if not debugging.
-
- Immediately after putting out the file, put out a "sem.<value>"
- declaration. This should be harmless on other systems, and
- is used in DG/UX by the debuggers to supplement COFF. The
- fields in the integer value are as follows:
-
- Bits Value Meaning
- ---- ----- -------
- 0-1 0 No information about stack locations
- 1 Auto/param locations are based on r30
- 2 Auto/param locations are based on CFA
-
- 3-2 0 No information on dimension order
- 1 Array dims in sym table matches source language
- 2 Array dims in sym table is in reverse order
-
- 5-4 0 No information about the case of global names
- 1 Global names appear in the symbol table as in the source
- 2 Global names have been converted to lower case
- 3 Global names have been converted to upper case. */
-
-#ifdef SDB_DEBUGGING_INFO
-#define ASM_COFFSEM(FILE) \
- if (write_symbols == SDB_DEBUG) \
- { \
- fprintf (FILE, "\nsem.%x:\t\t; %s\n", \
- (((TARGET_OCS_FRAME_POSITION) ? 2 : 1) << 0) + (1 << 2) + (1 << 4),\
- (TARGET_OCS_FRAME_POSITION) \
- ? "frame is CFA, normal array dims, case unchanged" \
- : "frame is r30, normal array dims, case unchanged"); \
- }
-#else
-#define ASM_COFFSEM(FILE)
-#endif
-
-/* Output the first line of the assembly file. Redefined in dgux.h. */
-
-#define ASM_FIRST_LINE(FILE) \
- do { \
- if (TARGET_SVR4) \
- { \
- if (TARGET_88110) \
- fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "04.00"); \
- else \
- fprintf (FILE, "%s\"%s\"\n", VERSION_ASM_OP, "03.00"); \
- } \
- } while (0)
-
-/* Override svr[34].h. */
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE) \
- output_file_start (FILE, \
- (struct m88k_lang_independent_options *) f_options, \
- ARRAY_SIZE (f_options), \
- (struct m88k_lang_independent_options *) W_options, \
- ARRAY_SIZE (W_options))
-
-#undef ASM_FILE_END
-
-#define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) \
- fprintf (FILE, "%s\"%s\"\n", FILE_ASM_OP, NAME)
-
-#ifdef SDB_DEBUGGING_INFO
-#undef ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \
- if (m88k_prologue_done) \
- fprintf (FILE, "\n\tln\t %d\t\t\t\t; Real source line %d\n",\
- LINE - sdb_begin_function_line, LINE)
-#endif
-
-/* Code to handle #ident directives. Override svr[34].h definition. */
-#undef ASM_OUTPUT_IDENT
-#ifdef DBX_DEBUGGING_INFO
-#define ASM_OUTPUT_IDENT(FILE, NAME)
-#else
-#define ASM_OUTPUT_IDENT(FILE, NAME) \
- output_ascii (FILE, IDENT_ASM_OP, 4000, NAME, strlen (NAME));
-#endif
-
-/* Output to assembler file text saying following lines
- may contain character constants, extra white space, comments, etc. */
-#define ASM_APP_ON ""
-
-/* Output to assembler file text saying following lines
- no longer contain unusual constructs. */
-#define ASM_APP_OFF ""
-
-/* Format the assembly opcode so that the arguments are all aligned.
- The maximum instruction size is 8 characters (fxxx.xxx), so a tab and a
- space will do to align the output. Abandon the output if a `%' is
- encountered. */
-#define ASM_OUTPUT_OPCODE(STREAM, PTR) \
- { \
- int ch; \
- const char *orig_ptr; \
- \
- for (orig_ptr = (PTR); \
- (ch = *(PTR)) && ch != ' ' && ch != '\t' && ch != '\n' && ch != '%'; \
- (PTR)++) \
- putc (ch, STREAM); \
- \
- if (ch == ' ' && orig_ptr != (PTR) && (PTR) - orig_ptr < 8) \
- putc ('\t', STREAM); \
- }
-
-/* How to refer to registers in assembler output.
- This sequence is indexed by compiler's hard-register-number.
- Updated by OVERRIDE_OPTIONS to include the # for version 03.00 syntax. */
-
-#define REGISTER_NAMES \
- {"#r0"+1, "#r1"+1, "#r2"+1, "#r3"+1, "#r4"+1, "#r5"+1, "#r6"+1, "#r7"+1, \
- "#r8"+1, "#r9"+1, "#r10"+1,"#r11"+1,"#r12"+1,"#r13"+1,"#r14"+1,"#r15"+1,\
- "#r16"+1,"#r17"+1,"#r18"+1,"#r19"+1,"#r20"+1,"#r21"+1,"#r22"+1,"#r23"+1,\
- "#r24"+1,"#r25"+1,"#r26"+1,"#r27"+1,"#r28"+1,"#r29"+1,"#r30"+1,"#r31"+1,\
- "#x0"+1, "#x1"+1, "#x2"+1, "#x3"+1, "#x4"+1, "#x5"+1, "#x6"+1, "#x7"+1, \
- "#x8"+1, "#x9"+1, "#x10"+1,"#x11"+1,"#x12"+1,"#x13"+1,"#x14"+1,"#x15"+1,\
- "#x16"+1,"#x17"+1,"#x18"+1,"#x19"+1,"#x20"+1,"#x21"+1,"#x22"+1,"#x23"+1,\
- "#x24"+1,"#x25"+1,"#x26"+1,"#x27"+1,"#x28"+1,"#x29"+1,"#x30"+1,"#x31"+1}
-
-/* Define additional names for use in asm clobbers and asm declarations.
-
- We define the fake Condition Code register as an alias for reg 0 (which
- is our `condition code' register), so that condition codes can easily
- be clobbered by an asm. The carry bit in the PSR is now used. */
-
-#define ADDITIONAL_REGISTER_NAMES {{"psr", 0}, {"cc", 0}}
-
-/* Tell when to declare ASM names. Override svr4.h to provide this hook. */
-#undef DECLARE_ASM_NAME
-#define DECLARE_ASM_NAME TARGET_SVR4
-
-/* Write the extra assembler code needed to declare a function properly. */
-#undef ASM_DECLARE_FUNCTION_NAME
-#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
- do { \
- if (DECLARE_ASM_NAME) \
- { \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
- putc ('\n', FILE); \
- } \
- ASM_OUTPUT_LABEL(FILE, NAME); \
- } while (0)
-
-/* Write the extra assembler code needed to declare an object properly. */
-#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- if (DECLARE_ASM_NAME) \
- { \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
- } \
- } \
- ASM_OUTPUT_LABEL(FILE, NAME); \
- } while (0)
-
-/* Output the size directive for a decl in rest_of_decl_compilation
- in the case where we did not do so before the initializer.
- Once we find the error_mark_node, we know that the value of
- size_directive_output was set
- by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
-
-#undef ASM_FINISH_DECLARE_OBJECT
-#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
-do { \
- const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
- && DECLARE_ASM_NAME \
- && ! AT_END && TOP_LEVEL \
- && DECL_INITIAL (DECL) == error_mark_node \
- && !size_directive_output) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, name); \
- fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
- } \
- } while (0)
-
-/* This is how to declare the size of a function. */
-#undef ASM_DECLARE_FUNCTION_SIZE
-#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
- do { \
- if (DECLARE_ASM_NAME) \
- { \
- if (!flag_inhibit_size_directive) \
- { \
- char label[256]; \
- static int labelno = 0; \
- labelno++; \
- ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, (FNAME)); \
- fprintf (FILE, ",%s-", &label[1]); \
- assemble_name (FILE, (FNAME)); \
- putc ('\n', FILE); \
- } \
- } \
- } while (0)
-
-/* This is how to output the definition of a user-level label named NAME,
- such as the label on a static function or variable NAME. */
-#define ASM_OUTPUT_LABEL(FILE,NAME) \
- do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
-
-/* This is how to output a command to make the user-level label named NAME
- defined for reference from other files. */
-#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
- do { \
- fprintf (FILE, "%s", GLOBAL_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc ('\n', FILE); \
- } while (0)
-
-/* The prefix to add to user-visible assembler symbols.
- Override svr[34].h. */
-#undef USER_LABEL_PREFIX
-#define USER_LABEL_PREFIX "_"
-
-/* This is how to output a reference to a user-level label named NAME.
- Override svr[34].h. */
-#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- { \
- if (!TARGET_NO_UNDERSCORES && !TARGET_SVR4) \
- fputc ('_', FILE); \
- fputs (NAME, FILE); \
- }
-
-/* This is how to output an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class.
- For V.4, labels use `.' rather than `@'. */
-
-#undef ASM_OUTPUT_INTERNAL_LABEL
-#ifdef AS_BUG_DOT_LABELS /* The assembler requires a declaration of local. */
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, TARGET_SVR4 ? ".%s%d:\n%s.%s%d\n" : "@%s%d:\n", \
- PREFIX, NUM, INTERNAL_ASM_OP, PREFIX, NUM)
-#else
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, TARGET_SVR4 ? ".%s%d:\n" : "@%s%d:\n", PREFIX, NUM)
-#endif /* AS_BUG_DOT_LABELS */
-
-/* This is how to store into the string LABEL
- the symbol_ref name of an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class.
- This is suitable for output with `assemble_name'. This must agree
- with ASM_OUTPUT_INTERNAL_LABEL above, except for being prefixed
- with an `*'. */
-
-#undef ASM_GENERATE_INTERNAL_LABEL
-#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, TARGET_SVR4 ? "*.%s%ld" : "*@%s%ld", PREFIX, (long)(NUM))
-
-/* The single-byte pseudo-op is the default. Override svr[34].h. */
-#undef ASM_OUTPUT_ASCII
-#define ASM_OUTPUT_ASCII(FILE, P, SIZE) \
- output_ascii (FILE, ASCII_DATA_ASM_OP, 48, P, SIZE)
-
-/* Override svr4.h. Change to the readonly data section for a table of
- addresses. final_scan_insn changes back to the text section. */
-#undef ASM_OUTPUT_CASE_LABEL
-#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
- do { \
- if (! CASE_VECTOR_INSNS) \
- { \
- readonly_data_section (); \
- ASM_OUTPUT_ALIGN (FILE, 2); \
- } \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
- } while (0)
-
-/* Epilogue for case labels. This jump instruction is called by casesi
- to transfer to the appropriate branch instruction within the table.
- The label `@L<n>e' is coined to mark the end of the table. */
-#define ASM_OUTPUT_CASE_END(FILE, NUM, TABLE) \
- do { \
- if (CASE_VECTOR_INSNS) \
- { \
- char label[256]; \
- ASM_GENERATE_INTERNAL_LABEL (label, "L", NUM); \
- fprintf (FILE, "%se:\n", &label[1]); \
- if (! flag_delayed_branch) \
- fprintf (FILE, "\tlda\t %s,%s[%s]\n", reg_names[1], \
- reg_names[1], reg_names[m88k_case_index]); \
- fprintf (FILE, "\tjmp\t %s\n", reg_names[1]); \
- } \
- } while (0)
-
-/* This is how to output an element of a case-vector that is absolute. */
-#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
- do { \
- char buffer[256]; \
- ASM_GENERATE_INTERNAL_LABEL (buffer, "L", VALUE); \
- fprintf (FILE, CASE_VECTOR_INSNS ? "\tbr\t %s\n" : "\tword\t %s\n", \
- &buffer[1]); \
- } while (0)
-
-/* This is how to output an element of a case-vector that is relative. */
-#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
- ASM_OUTPUT_ADDR_VEC_ELT (FILE, VALUE)
-
-/* This is how to output an assembler line
- that says to advance the location counter
- to a multiple of 2**LOG bytes. */
-#define ASM_OUTPUT_ALIGN(FILE,LOG) \
- if ((LOG) != 0) \
- fprintf (FILE, "%s%d\n", ALIGN_ASM_OP, 1<<(LOG))
-
-/* On the m88100, align the text address to half a cache boundary when it
- can only be reached by jumping. Pack code tightly when compiling
- crtstuff.c. */
-#define LABEL_ALIGN_AFTER_BARRIER(LABEL) \
- (TARGET_88100 && !flag_inhibit_size_directive ? 3 : 2)
-
-/* Override svr[34].h. */
-#undef ASM_OUTPUT_SKIP
-#define ASM_OUTPUT_SKIP(FILE,SIZE) \
- fprintf (FILE, "%s%u\n", SKIP_ASM_OP, (SIZE))
-
-/* Override svr4.h. */
-#undef ASM_OUTPUT_EXTERNAL_LIBCALL
-
-/* This says how to output an assembler line to define a global common
- symbol. Size can be zero for the unusual case of a `struct { int : 0; }'.
- Override svr[34].h. */
-#undef ASM_OUTPUT_COMMON
-#undef ASM_OUTPUT_ALIGNED_COMMON
-#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
-( fprintf ((FILE), "%s", \
- ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SCOMM_ASM_OP : COMMON_ASM_OP), \
- assemble_name ((FILE), (NAME)), \
- fprintf ((FILE), ",%u\n", (SIZE) ? (SIZE) : 1))
-
-/* This says how to output an assembler line to define a local common
- symbol. Override svr[34].h. */
-#undef ASM_OUTPUT_LOCAL
-#undef ASM_OUTPUT_ALIGNED_LOCAL
-#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
-( fprintf ((FILE), "%s", \
- ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SBSS_ASM_OP : BSS_ASM_OP), \
- assemble_name ((FILE), (NAME)), \
- fprintf ((FILE), ",%u,%d\n", (SIZE) ? (SIZE) : 1, (SIZE) <= 4 ? 4 : 8))
-
-/* Store in OUTPUT a string (made with alloca) containing
- an assembler-name for a local static variable named NAME.
- LABELNO is an integer which is different for each call. */
-#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
-( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \
- sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
-
-/* This is how to output an insn to push a register on the stack.
- It need not be very fast code. */
-#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
- fprintf (FILE, "\tsubu\t %s,%s,%d\n\tst\t %s,%s,0\n", \
- reg_names[STACK_POINTER_REGNUM], \
- reg_names[STACK_POINTER_REGNUM], \
- (STACK_BOUNDARY / BITS_PER_UNIT), \
- reg_names[REGNO], \
- reg_names[STACK_POINTER_REGNUM])
-
-/* Length in instructions of the code output by ASM_OUTPUT_REG_PUSH. */
-#define REG_PUSH_LENGTH 2
-
-/* This is how to output an insn to pop a register from the stack. */
-#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
- fprintf (FILE, "\tld\t %s,%s,0\n\taddu\t %s,%s,%d\n", \
- reg_names[REGNO], \
- reg_names[STACK_POINTER_REGNUM], \
- reg_names[STACK_POINTER_REGNUM], \
- reg_names[STACK_POINTER_REGNUM], \
- (STACK_BOUNDARY / BITS_PER_UNIT))
-
-/* Length in instructions of the code output by ASM_OUTPUT_REG_POP. */
-#define REG_POP_LENGTH 2
-\f
-/* Macros to deal with OCS debug information */
-
-#define OCS_START_PREFIX "Ltb"
-#define OCS_END_PREFIX "Lte"
-
-#define PUT_OCS_FUNCTION_START(FILE) \
- { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_START_PREFIX, m88k_function_number); }
-
-#define PUT_OCS_FUNCTION_END(FILE) \
- { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_END_PREFIX, m88k_function_number); }
-
-/* Macros for debug information */
-#define DEBUGGER_AUTO_OFFSET(X) \
- (m88k_debugger_offset (X, 0) \
- + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset))
-
-#define DEBUGGER_ARG_OFFSET(OFFSET, X) \
- (m88k_debugger_offset (X, OFFSET) \
- + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset))
-
-/* Macros to deal with SDB debug information */
-#ifdef SDB_DEBUGGING_INFO
-
-/* Output structure tag names even when it causes a forward reference. */
-#define SDB_ALLOW_FORWARD_REFERENCES
-
-/* Print out extra debug information in the assembler file */
-#define PUT_SDB_SCL(a) \
- do { \
- register int s = (a); \
- register const char *scl; \
- switch (s) \
- { \
- case C_EFCN: scl = "end of function"; break; \
- case C_NULL: scl = "NULL storage class"; break; \
- case C_AUTO: scl = "automatic"; break; \
- case C_EXT: scl = "external"; break; \
- case C_STAT: scl = "static"; break; \
- case C_REG: scl = "register"; break; \
- case C_EXTDEF: scl = "external definition"; break; \
- case C_LABEL: scl = "label"; break; \
- case C_ULABEL: scl = "undefined label"; break; \
- case C_MOS: scl = "structure member"; break; \
- case C_ARG: scl = "argument"; break; \
- case C_STRTAG: scl = "structure tag"; break; \
- case C_MOU: scl = "union member"; break; \
- case C_UNTAG: scl = "union tag"; break; \
- case C_TPDEF: scl = "typedef"; break; \
- case C_USTATIC: scl = "uninitialized static"; break; \
- case C_ENTAG: scl = "enumeration tag"; break; \
- case C_MOE: scl = "member of enumeration"; break; \
- case C_REGPARM: scl = "register parameter"; break; \
- case C_FIELD: scl = "bit field"; break; \
- case C_BLOCK: scl = "block start/end"; break; \
- case C_FCN: scl = "function start/end"; break; \
- case C_EOS: scl = "end of structure"; break; \
- case C_FILE: scl = "filename"; break; \
- case C_LINE: scl = "line"; break; \
- case C_ALIAS: scl = "duplicated tag"; break; \
- case C_HIDDEN: scl = "hidden"; break; \
- default: scl = "unknown"; break; \
- } \
- \
- fprintf(asm_out_file, "\tscl\t %d\t\t\t\t; %s\n", s, scl); \
- } while (0)
-
-#define PUT_SDB_TYPE(a) \
- do { \
- register int t = (a); \
- static char buffer[100]; \
- register char *p = buffer; \
- register const char *q; \
- register int typ = t; \
- register int i; \
- \
- for (i = 0; i <= 5; i++) \
- { \
- switch ((typ >> ((i*N_TSHIFT) + N_BTSHFT)) & 03) \
- { \
- case DT_PTR: \
- strcpy (p, "ptr to "); \
- p += sizeof("ptr to"); \
- break; \
- \
- case DT_ARY: \
- strcpy (p, "array of "); \
- p += sizeof("array of"); \
- break; \
- \
- case DT_FCN: \
- strcpy (p, "func ret "); \
- p += sizeof("func ret"); \
- break; \
- } \
- } \
- \
- switch (typ & N_BTMASK) \
- { \
- case T_NULL: q = "<no type>"; break; \
- case T_CHAR: q = "char"; break; \
- case T_SHORT: q = "short"; break; \
- case T_INT: q = "int"; break; \
- case T_LONG: q = "long"; break; \
- case T_FLOAT: q = "float"; break; \
- case T_DOUBLE: q = "double"; break; \
- case T_STRUCT: q = "struct"; break; \
- case T_UNION: q = "union"; break; \
- case T_ENUM: q = "enum"; break; \
- case T_MOE: q = "enum member"; break; \
- case T_UCHAR: q = "unsigned char"; break; \
- case T_USHORT: q = "unsigned short"; break; \
- case T_UINT: q = "unsigned int"; break; \
- case T_ULONG: q = "unsigned long"; break; \
- default: q = "void"; break; \
- } \
- \
- strcpy (p, q); \
- fprintf(asm_out_file, "\ttype\t %d\t\t\t\t; %s\n", \
- t, buffer); \
- } while (0)
-
-#define PUT_SDB_INT_VAL(a) \
- fprintf (asm_out_file, "\tval\t %d\n", (a))
-
-#define PUT_SDB_VAL(a) \
-( fprintf (asm_out_file, "\tval\t "), \
- output_addr_const (asm_out_file, (a)), \
- fputc ('\n', asm_out_file))
-
-#define PUT_SDB_DEF(a) \
- do { fprintf (asm_out_file, "\tsdef\t "); \
- ASM_OUTPUT_LABELREF (asm_out_file, a); \
- fputc ('\n', asm_out_file); \
- } while (0)
-
-#define PUT_SDB_PLAIN_DEF(a) \
- fprintf(asm_out_file,"\tsdef\t .%s\n", a)
-
-/* Simply and endef now. */
-#define PUT_SDB_ENDEF \
- fputs("\tendef\n\n", asm_out_file)
-
-#define PUT_SDB_SIZE(a) \
- fprintf (asm_out_file, "\tsize\t %d\n", (a))
-
-/* Max dimensions to store for debug information (limited by COFF). */
-#define SDB_MAX_DIM 6
-
-/* New method for dim operations. */
-#define PUT_SDB_START_DIM \
- fputs("\tdim\t ", asm_out_file)
-
-/* How to end the DIM sequence. */
-#define PUT_SDB_LAST_DIM(a) \
- fprintf(asm_out_file, "%d\n", a)
-
-#define PUT_SDB_TAG(a) \
- do { \
- fprintf (asm_out_file, "\ttag\t "); \
- ASM_OUTPUT_LABELREF (asm_out_file, a); \
- fputc ('\n', asm_out_file); \
- } while( 0 )
-
-#define PUT_SDB_BLOCK_OR_FUNCTION(NAME, SCL, LINE) \
- do { \
- fprintf (asm_out_file, "\n\tsdef\t %s\n\tval\t .\n", \
- NAME); \
- PUT_SDB_SCL( SCL ); \
- fprintf (asm_out_file, "\tline\t %d\n\tendef\n\n", \
- (LINE)); \
- } while (0)
-
-#define PUT_SDB_BLOCK_START(LINE) \
- PUT_SDB_BLOCK_OR_FUNCTION (".bb", C_BLOCK, (LINE))
-
-#define PUT_SDB_BLOCK_END(LINE) \
- PUT_SDB_BLOCK_OR_FUNCTION (".eb", C_BLOCK, (LINE))
-
-#define PUT_SDB_FUNCTION_START(LINE) \
- do { \
- fprintf (asm_out_file, "\tln\t 1\n"); \
- PUT_SDB_BLOCK_OR_FUNCTION (".bf", C_FCN, (LINE)); \
- } while (0)
-
-#define PUT_SDB_FUNCTION_END(LINE) \
- do { \
- PUT_SDB_BLOCK_OR_FUNCTION (".ef", C_FCN, (LINE)); \
- } while (0)
-
-#define PUT_SDB_EPILOGUE_END(NAME) \
- do { \
- text_section (); \
- fprintf (asm_out_file, "\n\tsdef\t "); \
- ASM_OUTPUT_LABELREF(asm_out_file, (NAME)); \
- fputc('\n', asm_out_file); \
- PUT_SDB_SCL( C_EFCN ); \
- fprintf (asm_out_file, "\tendef\n\n"); \
- } while (0)
-
-#define SDB_GENERATE_FAKE(BUFFER, NUMBER) \
- sprintf ((BUFFER), ".%dfake", (NUMBER));
-
-#endif /* SDB_DEBUGGING_INFO */
-\f
-/* Support const and tdesc sections. Generally, a const section will
- be distinct from the text section whenever we do V.4-like things
- and so follows DECLARE_ASM_NAME. Note that strings go in text
- rather than const. Override svr[34].h. */
-
-#undef USE_CONST_SECTION
-#undef EXTRA_SECTIONS
-
-#define USE_CONST_SECTION DECLARE_ASM_NAME
-
-#if defined(USING_SVR4_H)
-
-#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata
-#define INIT_SECTION_FUNCTION
-#define FINI_SECTION_FUNCTION
-
-#else
-#if defined(USING_SVR3_H)
-
-#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_init, in_fini
-
-#else /* luna or other not based on svr[34].h. */
-
-#undef INIT_SECTION_ASM_OP
-#define EXTRA_SECTIONS in_const, in_tdesc, in_sdata
-#define CONST_SECTION_FUNCTION \
-void \
-const_section () \
-{ \
- text_section(); \
-}
-#define INIT_SECTION_FUNCTION
-#define FINI_SECTION_FUNCTION
-
-#endif /* USING_SVR3_H */
-#endif /* USING_SVR4_H */
-
-#undef EXTRA_SECTION_FUNCTIONS
-#define EXTRA_SECTION_FUNCTIONS \
- CONST_SECTION_FUNCTION \
- \
-void \
-tdesc_section () \
-{ \
- if (in_section != in_tdesc) \
- { \
- fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \
- in_section = in_tdesc; \
- } \
-} \
- \
-void \
-sdata_section () \
-{ \
- if (in_section != in_sdata) \
- { \
- fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
- in_section = in_sdata; \
- } \
-} \
- \
- INIT_SECTION_FUNCTION \
- FINI_SECTION_FUNCTION
-
-/* A C statement or statements to switch to the appropriate
- section for output of DECL. DECL is either a `VAR_DECL' node
- or a constant of some sort. RELOC indicates whether forming
- the initial value of DECL requires link-time relocations.
-
- For strings, the section is selected before the segment info is encoded. */
-#undef SELECT_SECTION
-#define SELECT_SECTION(DECL,RELOC,ALIGN) \
-{ \
- if (TREE_CODE (DECL) == STRING_CST) \
- { \
- if (! flag_writable_strings) \
- const_section (); \
- else if ( TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \
- sdata_section (); \
- else \
- data_section (); \
- } \
- else if (TREE_CODE (DECL) == VAR_DECL) \
- { \
- if (SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0))) \
- sdata_section (); \
- else if ((flag_pic && RELOC) \
- || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
- || !DECL_INITIAL (DECL) \
- || (DECL_INITIAL (DECL) != error_mark_node \
- && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
- data_section (); \
- else \
- const_section (); \
- } \
- else \
- const_section (); \
-}
-
-/* Jump tables consist of branch instructions and should be output in
- the text section. When we use a table of addresses, we explicitly
- change to the readonly data section. */
-#define JUMP_TABLES_IN_TEXT_SECTION 1
-
-/* 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'.
-
- For the m88k, determine if the item should go in the global pool. */
-#define ENCODE_SECTION_INFO(DECL) \
- do { \
- if (m88k_gp_threshold > 0) \
- { \
- if (TREE_CODE (DECL) == VAR_DECL) \
- { \
- if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
- { \
- int size = int_size_in_bytes (TREE_TYPE (DECL)); \
- \
- if (size > 0 && size <= m88k_gp_threshold) \
- SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0)) = 1; \
- } \
- } \
- else if (TREE_CODE (DECL) == STRING_CST \
- && flag_writable_strings \
- && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \
- SYMBOL_REF_FLAG (XEXP (TREE_CST_RTL (DECL), 0)) = 1; \
- } \
- } while (0)
-\f
-/* Print operand X (an rtx) in assembler syntax to file FILE.
- CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
- For `%' followed by punctuation, CODE is the punctuation and X is null. */
-#define PRINT_OPERAND_PUNCT_VALID_P(c) \
- ((c) == '#' || (c) == '.' || (c) == '!' || (c) == '*' || (c) == ';')
-
-#define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
-
-/* Print a memory address as an operand to reference that memory location. */
-#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
-
-/* This says not to strength reduce the addr calculations within loops
- (otherwise it does not take advantage of m88k scaled loads and stores */
-
-#define DONT_REDUCE_ADDR
projects / msp430-gcc.git / blobdiff