| /* Definitions of target machine for GNU compiler for Renesas / SuperH SH. |
| Copyright (C) 1993-2013 Free Software Foundation, Inc. |
| Contributed by Steve Chamberlain (sac@cygnus.com). |
| Improved by Jim Wilson (wilson@cygnus.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 3, or (at your option) |
| any later version. |
| |
| 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 GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GCC_SH_PROTOS_H |
| #define GCC_SH_PROTOS_H |
| |
| enum sh_function_kind { |
| /* A function with normal C ABI */ |
| FUNCTION_ORDINARY, |
| /* A special function that guarantees that some otherwise call-clobbered |
| registers are not clobbered. These can't go through the SH5 resolver, |
| because it only saves argument passing registers. */ |
| SFUNC_GOT, |
| /* A special function that should be linked statically. These are typically |
| smaller or not much larger than a PLT entry. |
| Some also have a non-standard ABI which precludes dynamic linking. */ |
| SFUNC_STATIC |
| }; |
| |
| /* Atomic model. */ |
| struct sh_atomic_model |
| { |
| enum enum_type |
| { |
| none = 0, |
| soft_gusa, |
| hard_llcs, |
| soft_tcb, |
| soft_imask, |
| |
| num_models |
| }; |
| |
| /* If strict is set, disallow mixing of different models, as it would |
| happen on SH4A. */ |
| bool strict; |
| enum_type type; |
| |
| /* Name string as it was specified on the command line. */ |
| const char* name; |
| |
| /* Name string as it is used in C/C++ defines. */ |
| const char* cdef_name; |
| |
| /* GBR offset variable for TCB model. */ |
| int tcb_gbr_offset; |
| }; |
| |
| extern const sh_atomic_model& selected_atomic_model (void); |
| |
| /* Shortcuts to check the currently selected atomic model. */ |
| #define TARGET_ATOMIC_ANY \ |
| selected_atomic_model ().type != sh_atomic_model::none |
| |
| #define TARGET_ATOMIC_STRICT \ |
| selected_atomic_model ().strict |
| |
| #define TARGET_ATOMIC_SOFT_GUSA \ |
| selected_atomic_model ().type == sh_atomic_model::soft_gusa |
| |
| #define TARGET_ATOMIC_HARD_LLCS \ |
| selected_atomic_model ().type == sh_atomic_model::hard_llcs |
| |
| #define TARGET_ATOMIC_SOFT_TCB \ |
| selected_atomic_model ().type == sh_atomic_model::soft_tcb |
| |
| #define TARGET_ATOMIC_SOFT_TCB_GBR_OFFSET_RTX \ |
| GEN_INT (selected_atomic_model ().tcb_gbr_offset) |
| |
| #define TARGET_ATOMIC_SOFT_IMASK \ |
| selected_atomic_model ().type == sh_atomic_model::soft_imask |
| |
| #ifdef RTX_CODE |
| extern rtx sh_fsca_sf2int (void); |
| extern rtx sh_fsca_int2sf (void); |
| |
| /* Declare functions defined in sh.c and used in templates. */ |
| |
| extern const char *output_branch (int, rtx, rtx *); |
| extern const char *output_ieee_ccmpeq (rtx, rtx *); |
| extern const char *output_branchy_insn (enum rtx_code, const char *, rtx, rtx *); |
| extern const char *output_movedouble (rtx, rtx[], enum machine_mode); |
| extern const char *output_movepcrel (rtx, rtx[], enum machine_mode); |
| extern const char *output_far_jump (rtx, rtx); |
| |
| extern rtx sfunc_uses_reg (rtx); |
| extern int barrier_align (rtx); |
| extern int sh_loop_align (rtx); |
| extern bool fp_zero_operand (rtx); |
| extern bool fp_one_operand (rtx); |
| extern rtx get_fpscr_rtx (void); |
| extern bool sh_legitimate_index_p (enum machine_mode, rtx, bool, bool); |
| extern bool sh_legitimize_reload_address (rtx *, enum machine_mode, int, int); |
| extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx); |
| extern bool nonpic_symbol_mentioned_p (rtx); |
| extern void emit_sf_insn (rtx); |
| extern void emit_df_insn (rtx); |
| extern void output_pic_addr_const (FILE *, rtx); |
| extern bool expand_block_move (rtx *); |
| extern void prepare_move_operands (rtx[], enum machine_mode mode); |
| extern enum rtx_code prepare_cbranch_operands (rtx *, enum machine_mode mode, |
| enum rtx_code comparison); |
| extern void expand_cbranchsi4 (rtx *operands, enum rtx_code comparison, int); |
| extern bool expand_cbranchdi4 (rtx *operands, enum rtx_code comparison); |
| extern void sh_emit_scc_to_t (enum rtx_code, rtx, rtx); |
| extern rtx sh_emit_cheap_store_flag (enum machine_mode, enum rtx_code, rtx, rtx); |
| extern void sh_emit_compare_and_branch (rtx *, enum machine_mode); |
| extern void sh_emit_compare_and_set (rtx *, enum machine_mode); |
| extern bool sh_ashlsi_clobbers_t_reg_p (rtx); |
| extern bool sh_lshrsi_clobbers_t_reg_p (rtx); |
| extern void gen_shifty_op (int, rtx *); |
| extern void gen_shifty_hi_op (int, rtx *); |
| extern bool expand_ashiftrt (rtx *); |
| extern bool sh_dynamicalize_shift_p (rtx); |
| extern int shl_and_kind (rtx, rtx, int *); |
| extern int shl_and_length (rtx); |
| extern int shl_and_scr_length (rtx); |
| extern bool gen_shl_and (rtx, rtx, rtx, rtx); |
| extern int shl_sext_kind (rtx, rtx, int *); |
| extern int shl_sext_length (rtx); |
| extern bool gen_shl_sext (rtx, rtx, rtx, rtx); |
| extern rtx gen_datalabel_ref (rtx); |
| extern int regs_used (rtx, int); |
| extern void fixup_addr_diff_vecs (rtx); |
| extern int get_dest_uid (rtx, int); |
| extern void final_prescan_insn (rtx, rtx *, int); |
| extern enum tls_model tls_symbolic_operand (rtx, enum machine_mode); |
| extern bool system_reg_operand (rtx, enum machine_mode); |
| extern bool reg_unused_after (rtx, rtx); |
| extern void expand_sf_unop (rtx (*)(rtx, rtx, rtx), rtx *); |
| extern void expand_sf_binop (rtx (*)(rtx, rtx, rtx, rtx), rtx *); |
| extern void expand_df_unop (rtx (*)(rtx, rtx, rtx), rtx *); |
| extern void expand_df_binop (rtx (*)(rtx, rtx, rtx, rtx), rtx *); |
| extern int sh_insn_length_adjustment (rtx); |
| extern bool sh_can_redirect_branch (rtx, rtx); |
| extern void sh_expand_unop_v2sf (enum rtx_code, rtx, rtx); |
| extern void sh_expand_binop_v2sf (enum rtx_code, rtx, rtx, rtx); |
| extern bool sh_expand_t_scc (rtx *); |
| extern rtx sh_gen_truncate (enum machine_mode, rtx, int); |
| extern bool sh_vector_mode_supported_p (enum machine_mode); |
| extern bool sh_cfun_trap_exit_p (void); |
| extern rtx sh_find_equiv_gbr_addr (rtx cur_insn, rtx mem); |
| extern int sh_eval_treg_value (rtx op); |
| extern HOST_WIDE_INT sh_disp_addr_displacement (rtx mem_op); |
| extern int sh_max_mov_insn_displacement (machine_mode mode, bool consider_sh2a); |
| |
| /* Result value of sh_find_set_of_reg. */ |
| struct set_of_reg |
| { |
| /* The insn where sh_find_set_of_reg stopped looking. |
| Can be NULL_RTX if the end of the insn list was reached. */ |
| rtx insn; |
| |
| /* The set rtx of the specified reg if found, NULL_RTX otherwise. */ |
| const_rtx set_rtx; |
| |
| /* The set source rtx of the specified reg if found, NULL_RTX otherwise. |
| Usually, this is the most interesting return value. */ |
| rtx set_src; |
| }; |
| |
| extern set_of_reg sh_find_set_of_reg (rtx reg, rtx insn, rtx(*stepfunc)(rtx)); |
| extern bool sh_is_logical_t_store_expr (rtx op, rtx insn); |
| extern rtx sh_try_omit_signzero_extend (rtx extended_op, rtx insn); |
| #endif /* RTX_CODE */ |
| |
| extern void sh_cpu_cpp_builtins (cpp_reader* pfile); |
| |
| extern const char *output_jump_label_table (void); |
| extern rtx get_t_reg_rtx (void); |
| extern rtx get_fpscr_rtx (void); |
| extern int sh_media_register_for_return (void); |
| extern void sh_expand_prologue (void); |
| extern void sh_expand_epilogue (bool); |
| extern void sh_set_return_address (rtx, rtx); |
| extern int initial_elimination_offset (int, int); |
| extern bool fldi_ok (void); |
| extern bool sh_hard_regno_rename_ok (unsigned int, unsigned int); |
| extern bool sh_cfun_interrupt_handler_p (void); |
| extern bool sh_cfun_resbank_handler_p (void); |
| extern bool sh_attr_renesas_p (const_tree); |
| extern bool sh_cfun_attr_renesas_p (void); |
| extern bool sh_cannot_change_mode_class |
| (enum machine_mode, enum machine_mode, enum reg_class); |
| extern bool sh_small_register_classes_for_mode_p (enum machine_mode); |
| extern void sh_mark_label (rtx, int); |
| extern bool check_use_sfunc_addr (rtx, rtx); |
| |
| #ifdef HARD_CONST |
| extern void fpscr_set_from_mem (int, HARD_REG_SET); |
| #endif |
| |
| extern void sh_pr_interrupt (struct cpp_reader *); |
| extern void sh_pr_trapa (struct cpp_reader *); |
| extern void sh_pr_nosave_low_regs (struct cpp_reader *); |
| extern rtx function_symbol (rtx, const char *, enum sh_function_kind); |
| extern rtx sh_get_pr_initial_val (void); |
| |
| extern void sh_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, |
| signed int, enum machine_mode); |
| extern rtx sh_dwarf_register_span (rtx); |
| |
| extern rtx replace_n_hard_rtx (rtx, rtx *, int , int); |
| extern int shmedia_cleanup_truncate (rtx *, void *); |
| |
| extern bool sh_contains_memref_p (rtx); |
| extern bool sh_loads_bankedreg_p (rtx); |
| extern rtx shmedia_prepare_call_address (rtx fnaddr, int is_sibcall); |
| extern int sh2a_get_function_vector_number (rtx); |
| extern bool sh2a_is_function_vector_call (rtx); |
| extern void sh_fix_range (const char *); |
| extern bool sh_hard_regno_mode_ok (unsigned int, enum machine_mode); |
| extern bool sh_can_use_simple_return_p (void); |
| #endif /* ! GCC_SH_PROTOS_H */ |
