/* Prototypes of target machine for GNU compiler. MIPS version.
Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
+ 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 GCC.
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.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; 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 int mips_reg_mode_ok_for_base_p (rtx, enum machine_mode, int);
-extern int mips_address_insns (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_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_fetch_insns (rtx);
-extern bool mips_global_pic_constant_p (rtx);
-extern bool mips_legitimate_address_p (enum machine_mode, rtx, int);
-extern bool mips_legitimize_address (rtx *, enum machine_mode);
+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 void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
-extern rtx mips_delegitimize_address (rtx);
extern int m16_uimm3_b (rtx, enum machine_mode);
extern int m16_simm4_1 (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 int m16_usym8_4 (rtx, enum machine_mode);
-extern int m16_usym5_4 (rtx, enum machine_mode);
-extern struct rtx_def *embedded_pic_fnaddr_reg (void);
-extern struct rtx_def *embedded_pic_offset (rtx);
-extern rtx mips_subword (rtx, int);
+extern rtx mips_subword (rtx, bool);
extern bool mips_split_64bit_move_p (rtx, rtx);
-extern void mips_split_64bit_move (rtx, rtx);
+extern void mips_split_doubleword_move (rtx, rtx);
extern const char *mips_output_move (rtx, rtx);
-extern const char *mips_restore_gp (rtx *);
+extern bool mips_cfun_has_cprestore_slot_p (void);
+extern bool mips_cprestore_address_p (rtx, bool);
+extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
+extern void mips_restore_gp_from_cprestore_slot (rtx);
#ifdef RTX_CODE
-extern rtx gen_int_relational (enum rtx_code, rtx, rtx, rtx, int *);
-extern void gen_conditional_branch (rtx *, enum rtx_code);
+extern void mips_expand_scc (rtx *);
+extern void mips_expand_conditional_branch (rtx *);
+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 (rtx);
#endif
-extern void gen_conditional_move (rtx *);
-extern void mips_gen_conditional_trap (rtx *);
-extern void mips_expand_call (rtx, rtx, rtx, rtx, int);
-extern void mips_emit_fcc_reload (rtx, rtx, rtx);
+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 bool mips_get_pic_call_symbol (rtx *, int);
+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 init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
-extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
- tree, int);
-extern struct rtx_def *function_arg (const CUMULATIVE_ARGS *,
- enum machine_mode, tree, int);
-extern int function_arg_partial_nregs (const CUMULATIVE_ARGS *,
- enum machine_mode, tree, int);
-extern bool mips_pad_arg_upward (enum machine_mode, tree);
+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 int mips_setup_incoming_varargs (const CUMULATIVE_ARGS *,
- enum machine_mode, tree, int);
-extern tree mips_build_va_list (void);
-extern void mips_va_start (tree, rtx);
-extern struct rtx_def *mips_va_arg (tree, tree);
-
-extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
-extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
-extern void override_options (void);
+
+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 print_operand (FILE *, rtx, int);
-extern void print_operand_address (FILE *, rtx);
-extern int mips_output_external (FILE *, tree, const char *);
-#if TARGET_IRIX5 || TARGET_IRIX6
-extern void mips_output_external_libcall (rtx);
-#endif
+extern void mips_push_asm_switch (struct mips_asm_switch *);
+extern void mips_pop_asm_switch (struct mips_asm_switch *);
+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_lineno (FILE *, int);
extern void mips_output_ascii (FILE *, const char *, size_t);
-extern void mips_output_aligned_bss (FILE *, tree, const char *,
- unsigned HOST_WIDE_INT, int);
+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 *, int);
+ 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 HOST_WIDE_INT compute_frame_size (HOST_WIDE_INT);
-extern int mips_initial_elimination_offset (int, int);
+extern bool mips_small_data_pattern_p (rtx);
+extern rtx mips_rewrite_small_data (rtx);
+extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
extern rtx mips_return_addr (int, rtx);
+extern bool mips_must_initialize_gp_p (void);
+extern enum mips_loadgp_style mips_current_loadgp_style (void);
+extern void mips_emit_save_slot_move (rtx, rtx, rtx);
extern void mips_expand_prologue (void);
-extern void mips_expand_epilogue (int);
-extern int mips_can_use_return_insn (void);
-extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
-extern int function_arg_pass_by_reference (const CUMULATIVE_ARGS *,
- enum machine_mode, tree, int);
+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, 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, int);
+ rtx, bool);
extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
-extern bool mips_valid_pointer_mode (enum machine_mode);
-extern struct rtx_def *mips16_gp_pseudo_reg (void);
-extern int build_mips16_call_stub (rtx, rtx, rtx, int);
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 *, int, int,
- int, int);
+extern void mips_output_load_label (rtx);
+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 (void);
+extern const char *mips_output_sync_loop (rtx, rtx *);
+extern unsigned int mips_sync_loop_insns (rtx, rtx *);
extern const char *mips_output_division (const char *, rtx *);
extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
-extern int mips_return_in_memory (tree);
-extern const char *mips_emit_prefetch (rtx *);
+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 iris6_asm_output_align (FILE *, unsigned);
+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);
+extern bool and_operands_ok (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);
+
+extern bool mips_eh_uses (unsigned int);
+extern bool mips_epilogue_uses (unsigned int);
+extern void mips_final_prescan_insn (rtx, rtx *, int);
+extern int mips_trampoline_code_size (void);
+extern void mips_function_profiler (FILE *);
+
+typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
+#ifdef RTX_CODE
+extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
+#endif
#endif /* ! GCC_MIPS_PROTOS_H */
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