/* Prototypes of target machine for GNU compiler. MIPS version.
Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2001 Free Software Foundation, Inc.
+ 1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008
+ Free Software Foundation, Inc.
Contributed by A. Lichnewsky (lich@inria.inria.fr).
Changed by Michael Meissner (meissner@osf.org).
- 64 bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
+ 64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
Brendan Eich (brendan@microunity.com).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_MIPS_PROTOS_H
#define GCC_MIPS_PROTOS_H
-extern HOST_WIDE_INT compute_frame_size PARAMS ((HOST_WIDE_INT));
-extern void mips_asm_file_end PARAMS ((FILE *));
-extern void mips_asm_file_start PARAMS ((FILE *));
-extern void iris6_asm_file_start PARAMS ((FILE *));
-extern void iris6_asm_file_end PARAMS ((FILE *));
-extern void iris6_asm_output_align PARAMS ((FILE *, unsigned));
-extern const char * current_section_name PARAMS ((void));
-extern unsigned int current_section_flags PARAMS ((void));
-extern int mips_can_use_return_insn PARAMS ((void));
-extern void mips_declare_object PARAMS ((FILE *, const char *,
- const char *,
- const char *, int));
-extern void mips_expand_epilogue PARAMS ((void));
-extern void mips_expand_prologue PARAMS ((void));
-extern void mips_output_filename PARAMS ((FILE *, const char *));
-extern void mips_output_lineno PARAMS ((FILE *, int));
-extern void mips_output_ascii PARAMS ((FILE *, const char *,
- size_t));
-extern void mips_order_regs_for_local_alloc PARAMS ((void));
-extern struct rtx_def * mips16_gp_pseudo_reg PARAMS ((void));
-#ifdef ASM_OUTPUT_UNDEF_FUNCTION
-extern int mips_output_external_libcall PARAMS ((FILE *, const char *));
-#endif /* ASM_OUTPUT_UNDEF_FUNCTION */
-extern struct rtx_def *mips_function_value PARAMS ((tree, tree,
- enum machine_mode));
-
-extern unsigned int mips_hard_regno_nregs PARAMS ((int,
- enum machine_mode));
-extern struct rtx_def *function_arg PARAMS ((CUMULATIVE_ARGS *,
- enum machine_mode, tree, int));
-extern void function_arg_advance PARAMS ((CUMULATIVE_ARGS *,
- enum machine_mode,
- tree, int));
-extern int function_arg_partial_nregs PARAMS ((CUMULATIVE_ARGS *,
- enum machine_mode,
- tree, int));
-extern int function_arg_pass_by_reference
- PARAMS ((CUMULATIVE_ARGS *,
- enum machine_mode, tree, int));
-extern int mips16_constant_after_function_p PARAMS ((tree));
-extern int mips_output_external PARAMS ((FILE *, tree,
- const char *));
-extern tree mips_build_va_list PARAMS ((void));
-extern void mips_va_start PARAMS ((int, tree, rtx));
-extern struct rtx_def *mips_va_arg PARAMS ((tree, tree));
-extern void mips_select_section PARAMS ((tree, int));
-extern void mips_unique_section PARAMS ((tree, int));
-
-extern void expand_block_move PARAMS ((rtx *));
-extern void final_prescan_insn PARAMS ((rtx, rtx *, int));
-extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *,
- tree, rtx));
-extern void gen_conditional_move PARAMS ((rtx *));
-extern void mips_gen_conditional_trap PARAMS ((rtx *));
-extern void mips_emit_fcc_reload PARAMS ((rtx, rtx, rtx));
-extern void machine_dependent_reorg PARAMS ((rtx));
-extern int mips_address_cost PARAMS ((rtx));
-extern void mips_count_memory_refs PARAMS ((rtx, int));
-extern HOST_WIDE_INT mips_debugger_offset PARAMS ((rtx, HOST_WIDE_INT));
-extern int mips_check_split PARAMS ((rtx, enum machine_mode));
-extern const char *mips_fill_delay_slot PARAMS ((const char *,
- enum delay_type, rtx *,
- rtx));
-extern const char *mips_move_1word PARAMS ((rtx *, rtx, int));
-extern const char *mips_move_2words PARAMS ((rtx *, rtx));
-extern const char *output_block_move PARAMS ((rtx, rtx *, int,
- enum block_move_type));
-extern void override_options PARAMS ((void));
-extern void print_operand_address PARAMS ((FILE *, rtx));
-extern void print_operand PARAMS ((FILE *, rtx, int));
-extern int double_memory_operand PARAMS ((rtx,enum machine_mode));
-extern struct rtx_def * embedded_pic_offset PARAMS ((rtx));
-extern struct rtx_def * mips16_gp_offset PARAMS ((rtx));
-extern int mips16_gp_offset_p PARAMS ((rtx));
-extern int mips16_constant PARAMS ((rtx, enum machine_mode,
- int, int));
-extern int build_mips16_call_stub PARAMS ((rtx, rtx, rtx, int));
-extern const char *mips_output_conditional_branch PARAMS ((rtx, rtx *,
- int, int, int,
- int));
-extern int mips_adjust_insn_length PARAMS ((rtx, int));
-extern enum reg_class mips_secondary_reload_class PARAMS ((enum reg_class,
- enum machine_mode,
- rtx, int));
-extern void mips_select_rtx_section PARAMS ((enum machine_mode,
- rtx));
-
-extern int pic_address_needs_scratch PARAMS ((rtx));
-extern int se_arith_operand PARAMS ((rtx, enum machine_mode));
-extern int mips_legitimate_address_p PARAMS ((enum machine_mode,
- rtx, int));
-extern int mips_reg_mode_ok_for_base_p PARAMS ((rtx,
- enum machine_mode,
- int));
-extern int m16_uimm3_b PARAMS ((rtx, enum machine_mode));
-extern int m16_simm4_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_nsimm4_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_simm5_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_nsimm5_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_uimm5_4 PARAMS ((rtx, enum machine_mode));
-extern int m16_nuimm5_4 PARAMS ((rtx, enum machine_mode));
-extern int m16_simm8_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_nsimm8_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_uimm8_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_nuimm8_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_uimm8_m1_1 PARAMS ((rtx, enum machine_mode));
-extern int m16_uimm8_4 PARAMS ((rtx, enum machine_mode));
-extern int m16_nuimm8_4 PARAMS ((rtx, enum machine_mode));
-extern int m16_simm8_8 PARAMS ((rtx, enum machine_mode));
-extern int m16_nsimm8_8 PARAMS ((rtx, enum machine_mode));
-extern int m16_usym8_4 PARAMS ((rtx, enum machine_mode));
-extern int m16_usym5_4 PARAMS ((rtx, enum machine_mode));
+/* Describes how a symbol is used.
+ SYMBOL_CONTEXT_CALL
+ The symbol is used as the target of a call instruction.
+
+ SYMBOL_CONTEXT_LEA
+ The symbol is used in a load-address operation.
+
+ SYMBOL_CONTEXT_MEM
+ The symbol is used as the address in a MEM. */
+enum mips_symbol_context {
+ SYMBOL_CONTEXT_CALL,
+ SYMBOL_CONTEXT_LEA,
+ SYMBOL_CONTEXT_MEM
+};
+
+/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
+
+ SYMBOL_ABSOLUTE
+ The symbol's value will be calculated using absolute relocations,
+ such as %hi and %lo.
+
+ SYMBOL_GP_RELATIVE
+ The symbol's value will be calculated by adding a 16-bit offset
+ from $gp.
+
+ SYMBOL_PC_RELATIVE
+ The symbol's value will be calculated using a MIPS16 PC-relative
+ calculation.
+
+ SYMBOL_FORCE_TO_MEM
+ The symbol's value must be forced to memory and loaded from there.
+
+ SYMBOL_GOT_PAGE_OFST
+ The symbol's value will be calculated by loading an address
+ from the GOT and then applying a 16-bit offset.
+
+ SYMBOL_GOT_DISP
+ The symbol's value will be loaded directly from the GOT.
+
+ SYMBOL_GOTOFF_PAGE
+ An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
+ offset from _gp of the GOT entry.
+
+ SYMBOL_GOTOFF_DISP
+ An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
+ the offset from _gp of the symbol's GOT entry.
+
+ SYMBOL_GOTOFF_CALL
+ Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
+ The GOT entry is allowed to point to a stub rather than to the
+ function itself.
+
+ SYMBOL_GOTOFF_LOADGP
+ An UNSPEC wrapper around a function's address. It represents the
+ offset of _gp from the start of the function.
+
+ SYMBOL_TLS
+ A thread-local symbol.
+
+ SYMBOL_TLSGD
+ SYMBOL_TLSLDM
+ SYMBOL_DTPREL
+ SYMBOL_GOTTPREL
+ SYMBOL_TPREL
+ UNSPEC wrappers around SYMBOL_TLS, corresponding to the
+ thread-local storage relocation operators.
+
+ SYMBOL_32_HIGH
+ For a 32-bit symbolic address X, this is the value of %hi(X).
+
+ SYMBOL_64_HIGH
+ For a 64-bit symbolic address X, this is the value of
+ (%highest(X) << 16) + %higher(X).
+
+ SYMBOL_64_MID
+ For a 64-bit symbolic address X, this is the value of
+ (%higher(X) << 16) + %hi(X).
+
+ SYMBOL_64_LOW
+ For a 64-bit symbolic address X, this is the value of
+ (%hi(X) << 16) + %lo(X).
+
+ SYMBOL_HALF
+ An UNSPEC wrapper around any kind of address. It represents the
+ low 16 bits of that address. */
+enum mips_symbol_type {
+ SYMBOL_ABSOLUTE,
+ SYMBOL_GP_RELATIVE,
+ SYMBOL_PC_RELATIVE,
+ SYMBOL_FORCE_TO_MEM,
+ SYMBOL_GOT_PAGE_OFST,
+ SYMBOL_GOT_DISP,
+ SYMBOL_GOTOFF_PAGE,
+ SYMBOL_GOTOFF_DISP,
+ SYMBOL_GOTOFF_CALL,
+ SYMBOL_GOTOFF_LOADGP,
+ SYMBOL_TLS,
+ SYMBOL_TLSGD,
+ SYMBOL_TLSLDM,
+ SYMBOL_DTPREL,
+ SYMBOL_GOTTPREL,
+ SYMBOL_TPREL,
+ SYMBOL_32_HIGH,
+ SYMBOL_64_HIGH,
+ SYMBOL_64_MID,
+ SYMBOL_64_LOW,
+ SYMBOL_HALF
+};
+#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
+
+/* Identifiers a style of $gp initialization sequence.
+
+ LOADGP_NONE
+ No initialization sequence is needed.
+
+ LOADGP_OLDABI
+ The o32 and o64 PIC sequence (the kind traditionally generated
+ by .cpload).
+
+ LOADGP_NEWABI
+ The n32 and n64 PIC sequence (the kind traditionally generated
+ by .cpsetup).
+
+ LOADGP_ABSOLUTE
+ The GNU absolute sequence, as generated by loadgp_absolute.
+
+ LOADGP_RTP
+ The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
+enum mips_loadgp_style {
+ LOADGP_NONE,
+ LOADGP_OLDABI,
+ LOADGP_NEWABI,
+ LOADGP_ABSOLUTE,
+ LOADGP_RTP
+};
+
+struct mips16e_save_restore_info;
+
+/* Classifies a type of call.
+
+ MIPS_CALL_NORMAL
+ A normal call or call_value pattern.
+
+ MIPS_CALL_SIBCALL
+ A sibcall or sibcall_value pattern.
+
+ MIPS_CALL_EPILOGUE
+ A call inserted in the epilogue. */
+enum mips_call_type {
+ MIPS_CALL_NORMAL,
+ MIPS_CALL_SIBCALL,
+ MIPS_CALL_EPILOGUE
+};
+
+extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context,
+ enum mips_symbol_type *);
+extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
+extern bool mips_legitimate_address_p (enum machine_mode, rtx, bool);
+extern bool mips_stack_address_p (rtx, enum machine_mode);
+extern int mips_address_insns (rtx, enum machine_mode, bool);
+extern int mips_const_insns (rtx);
+extern int mips_split_const_insns (rtx);
+extern int mips_load_store_insns (rtx, rtx);
+extern int mips_idiv_insns (void);
+extern rtx mips_emit_move (rtx, rtx);
+extern rtx mips_pic_base_register (rtx);
+extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
+extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *);
+extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
+extern bool mips_legitimize_address (rtx *, enum machine_mode);
+extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
+extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
+
+extern int m16_uimm3_b (rtx, enum machine_mode);
+extern int m16_simm4_1 (rtx, enum machine_mode);
+extern int m16_nsimm4_1 (rtx, enum machine_mode);
+extern int m16_simm5_1 (rtx, enum machine_mode);
+extern int m16_nsimm5_1 (rtx, enum machine_mode);
+extern int m16_uimm5_4 (rtx, enum machine_mode);
+extern int m16_nuimm5_4 (rtx, enum machine_mode);
+extern int m16_simm8_1 (rtx, enum machine_mode);
+extern int m16_nsimm8_1 (rtx, enum machine_mode);
+extern int m16_uimm8_1 (rtx, enum machine_mode);
+extern int m16_nuimm8_1 (rtx, enum machine_mode);
+extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
+extern int m16_uimm8_4 (rtx, enum machine_mode);
+extern int m16_nuimm8_4 (rtx, enum machine_mode);
+extern int m16_simm8_8 (rtx, enum machine_mode);
+extern int m16_nsimm8_8 (rtx, enum machine_mode);
+
+extern rtx mips_subword (rtx, bool);
+extern bool mips_split_64bit_move_p (rtx, rtx);
+extern void mips_split_doubleword_move (rtx, rtx);
+extern const char *mips_output_move (rtx, rtx);
+extern void mips_restore_gp (rtx);
#ifdef RTX_CODE
-extern rtx gen_int_relational PARAMS ((enum rtx_code, rtx, rtx,
- rtx,int *));
-extern void gen_conditional_branch PARAMS ((rtx *, enum rtx_code));
+extern bool mips_expand_scc (enum rtx_code, rtx);
+extern void mips_expand_conditional_branch (rtx *, enum rtx_code);
+extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
+extern void mips_expand_conditional_move (rtx *);
+extern void mips_expand_conditional_trap (enum rtx_code);
#endif
+extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
+extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool);
+extern void mips_split_call (rtx, rtx);
+extern void mips_expand_fcc_reload (rtx, rtx, rtx);
+extern void mips_set_return_address (rtx, rtx);
+extern bool mips_expand_block_move (rtx, rtx, rtx);
+extern void mips_expand_synci_loop (rtx, rtx);
+
+extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
+extern void mips_function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
+ tree, int);
+extern rtx mips_function_arg (const CUMULATIVE_ARGS *,
+ enum machine_mode, tree, int);
+extern int mips_function_arg_boundary (enum machine_mode, tree);
+extern bool mips_pad_arg_upward (enum machine_mode, const_tree);
+extern bool mips_pad_reg_upward (enum machine_mode, tree);
+
+extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
+ HOST_WIDE_INT);
+extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
+ HOST_WIDE_INT);
+extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
+extern void mips_override_options (void);
+extern void mips_conditional_register_usage (void);
+extern void mips_order_regs_for_local_alloc (void);
+extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
+
+extern void mips_print_operand (FILE *, rtx, int);
+extern void mips_print_operand_address (FILE *, rtx);
+extern void mips_output_external (FILE *, tree, const char *);
+extern void mips_output_filename (FILE *, const char *);
+extern void mips_output_ascii (FILE *, const char *, size_t);
+extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
+ unsigned HOST_WIDE_INT,
+ unsigned int);
+extern void mips_declare_common_object (FILE *, const char *,
+ const char *, unsigned HOST_WIDE_INT,
+ unsigned int, bool);
+extern void mips_declare_object (FILE *, const char *, const char *,
+ const char *, ...) ATTRIBUTE_PRINTF_4;
+extern void mips_declare_object_name (FILE *, const char *, tree);
+extern void mips_finish_declare_object (FILE *, tree, int, int);
+
+extern bool mips_small_data_pattern_p (rtx);
+extern rtx mips_rewrite_small_data (rtx);
+extern bool mips_frame_pointer_required (void);
+extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
+extern rtx mips_return_addr (int, rtx);
+extern enum mips_loadgp_style mips_current_loadgp_style (void);
+extern void mips_expand_prologue (void);
+extern void mips_expand_before_return (void);
+extern void mips_expand_epilogue (bool);
+extern bool mips_can_use_return_insn (void);
+extern rtx mips_function_value (const_tree, enum machine_mode);
+
+extern bool mips_cannot_change_mode_class (enum machine_mode,
+ enum machine_mode, enum reg_class);
+extern bool mips_dangerous_for_la25_p (rtx);
+extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
+extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
+extern enum reg_class mips_secondary_reload_class (enum reg_class,
+ enum machine_mode,
+ rtx, bool);
+extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
+extern int mips_register_move_cost (enum machine_mode, enum reg_class,
+ enum reg_class);
+
+extern int mips_adjust_insn_length (rtx, int);
+extern const char *mips_output_load_label (void);
+extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
+ const char *);
+extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
+extern const char *mips_output_sync_loop (const char *);
+extern const char *mips_output_division (const char *, rtx *);
+extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
+extern bool mips_linked_madd_p (rtx, rtx);
+extern bool mips_store_data_bypass_p (rtx, rtx);
+extern rtx mips_prefetch_cookie (rtx, rtx);
+
+extern void irix_asm_output_align (FILE *, unsigned);
+extern const char *current_section_name (void);
+extern unsigned int current_section_flags (void);
+extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
+
+extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
+extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
+ struct mips16e_save_restore_info *);
+
+extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int);
+extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx);
+
+union mips_gen_fn_ptrs
+{
+ rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
+ rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
+ rtx (*fn_4) (rtx, rtx, rtx, rtx);
+};
+
+extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
+ rtx, rtx, rtx, rtx);
+
+extern void mips_expand_vector_init (rtx, rtx);
#endif /* ! GCC_MIPS_PROTOS_H */
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