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/* Prototypes for exported functions defined in arm.c and pe.c
Copyright (C) 1999-2014 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rearnsha@arm.com)
Minor hacks by Nick Clifton (nickc@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_ARM_PROTOS_H
#define GCC_ARM_PROTOS_H
extern enum unwind_info_type arm_except_unwind_info (struct gcc_options *);
extern int use_return_insn (int, rtx);
extern bool use_simple_return_p (void);
extern enum reg_class arm_regno_class (int);
extern void arm_load_pic_register (unsigned long);
extern int arm_volatile_func (void);
extern void arm_expand_prologue (void);
extern void arm_expand_epilogue (bool);
extern void thumb2_expand_return (bool);
extern const char *arm_strip_name_encoding (const char *);
extern void arm_asm_output_labelref (FILE *, const char *);
extern void thumb2_asm_output_opcode (FILE *);
extern unsigned long arm_current_func_type (void);
extern HOST_WIDE_INT arm_compute_initial_elimination_offset (unsigned int,
unsigned int);
extern HOST_WIDE_INT thumb_compute_initial_elimination_offset (unsigned int,
unsigned int);
extern unsigned int arm_dbx_register_number (unsigned int);
extern void arm_output_fn_unwind (FILE *, bool);
#ifdef RTX_CODE
extern bool arm_vector_mode_supported_p (enum machine_mode);
extern bool arm_small_register_classes_for_mode_p (enum machine_mode);
extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode);
extern bool arm_modes_tieable_p (enum machine_mode, enum machine_mode);
extern int const_ok_for_arm (HOST_WIDE_INT);
extern int const_ok_for_op (HOST_WIDE_INT, enum rtx_code);
extern int const_ok_for_dimode_op (HOST_WIDE_INT, enum rtx_code);
extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx,
HOST_WIDE_INT, rtx, rtx, int);
extern int legitimate_pic_operand_p (rtx);
extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx);
extern rtx legitimize_tls_address (rtx, rtx);
extern bool arm_legitimate_address_p (enum machine_mode, rtx, bool);
extern int arm_legitimate_address_outer_p (enum machine_mode, rtx, RTX_CODE, int);
extern int thumb_legitimate_offset_p (enum machine_mode, HOST_WIDE_INT);
extern bool arm_legitimize_reload_address (rtx *, enum machine_mode, int, int,
int);
extern rtx thumb_legitimize_reload_address (rtx *, enum machine_mode, int, int,
int);
extern int thumb1_legitimate_address_p (enum machine_mode, rtx, int);
extern bool ldm_stm_operation_p (rtx, bool, enum machine_mode mode,
bool, bool);
extern int arm_const_double_rtx (rtx);
extern int vfp3_const_double_rtx (rtx);
extern int neon_immediate_valid_for_move (rtx, enum machine_mode, rtx *, int *);
extern int neon_immediate_valid_for_logic (rtx, enum machine_mode, int, rtx *,
int *);
extern int neon_immediate_valid_for_shift (rtx, enum machine_mode, rtx *,
int *, bool);
extern char *neon_output_logic_immediate (const char *, rtx *,
enum machine_mode, int, int);
extern char *neon_output_shift_immediate (const char *, char, rtx *,
enum machine_mode, int, bool);
extern void neon_pairwise_reduce (rtx, rtx, enum machine_mode,
rtx (*) (rtx, rtx, rtx));
extern rtx neon_make_constant (rtx);
extern tree arm_builtin_vectorized_function (tree, tree, tree);
extern void neon_expand_vector_init (rtx, rtx);
extern void neon_lane_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
extern void neon_const_bounds (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
extern HOST_WIDE_INT neon_element_bits (enum machine_mode);
extern void neon_reinterpret (rtx, rtx);
extern void neon_emit_pair_result_insn (enum machine_mode,
rtx (*) (rtx, rtx, rtx, rtx),
rtx, rtx, rtx);
extern void neon_disambiguate_copy (rtx *, rtx *, rtx *, unsigned int);
extern void neon_split_vcombine (rtx op[3]);
extern enum reg_class coproc_secondary_reload_class (enum machine_mode, rtx,
bool);
extern bool arm_tls_referenced_p (rtx);
extern int arm_coproc_mem_operand (rtx, bool);
extern int neon_vector_mem_operand (rtx, int, bool);
extern int neon_struct_mem_operand (rtx);
extern int tls_mentioned_p (rtx);
extern int symbol_mentioned_p (rtx);
extern int label_mentioned_p (rtx);
extern RTX_CODE minmax_code (rtx);
extern bool arm_sat_operator_match (rtx, rtx, int *, bool *);
extern int adjacent_mem_locations (rtx, rtx);
extern bool gen_ldm_seq (rtx *, int, bool);
extern bool gen_stm_seq (rtx *, int);
extern bool gen_const_stm_seq (rtx *, int);
extern rtx arm_gen_load_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *);
extern rtx arm_gen_store_multiple (int *, int, rtx, int, rtx, HOST_WIDE_INT *);
extern bool offset_ok_for_ldrd_strd (HOST_WIDE_INT);
extern bool operands_ok_ldrd_strd (rtx, rtx, rtx, HOST_WIDE_INT, bool, bool);
extern bool gen_operands_ldrd_strd (rtx *, bool, bool, bool);
extern int arm_gen_movmemqi (rtx *);
extern bool gen_movmem_ldrd_strd (rtx *);
extern enum machine_mode arm_select_cc_mode (RTX_CODE, rtx, rtx);
extern enum machine_mode arm_select_dominance_cc_mode (rtx, rtx,
HOST_WIDE_INT);
extern rtx arm_gen_compare_reg (RTX_CODE, rtx, rtx, rtx);
extern rtx arm_gen_return_addr_mask (void);
extern void arm_reload_in_hi (rtx *);
extern void arm_reload_out_hi (rtx *);
extern int arm_max_const_double_inline_cost (void);
extern int arm_const_double_inline_cost (rtx);
extern bool arm_const_double_by_parts (rtx);
extern bool arm_const_double_by_immediates (rtx);
extern void arm_emit_call_insn (rtx, rtx, bool);
extern const char *output_call (rtx *);
extern const char *output_call_mem (rtx *);
void arm_emit_movpair (rtx, rtx);
extern const char *output_mov_long_double_arm_from_arm (rtx *);
extern const char *output_move_double (rtx *, bool, int *count);
extern const char *output_move_quad (rtx *);
extern int arm_count_output_move_double_insns (rtx *);
extern const char *output_move_vfp (rtx *operands);
extern const char *output_move_neon (rtx *operands);
extern int arm_attr_length_move_neon (rtx_insn *);
extern int arm_address_offset_is_imm (rtx_insn *);
extern const char *output_add_immediate (rtx *);
extern const char *arithmetic_instr (rtx, int);
extern void output_ascii_pseudo_op (FILE *, const unsigned char *, int);
extern const char *output_return_instruction (rtx, bool, bool, bool);
extern void arm_poke_function_name (FILE *, const char *);
extern void arm_final_prescan_insn (rtx_insn *);
extern int arm_debugger_arg_offset (int, rtx);
extern bool arm_is_long_call_p (tree);
extern int arm_emit_vector_const (FILE *, rtx);
extern void arm_emit_fp16_const (rtx c);
extern const char * arm_output_load_gr (rtx *);
extern const char *vfp_output_vstmd (rtx *);
extern void arm_output_multireg_pop (rtx *, bool, rtx, bool, bool);
extern void arm_set_return_address (rtx, rtx);
extern int arm_eliminable_register (rtx);
extern const char *arm_output_shift(rtx *, int);
extern const char *arm_output_iwmmxt_shift_immediate (const char *, rtx *, bool);
extern const char *arm_output_iwmmxt_tinsr (rtx *);
extern unsigned int arm_sync_loop_insns (rtx , rtx *);
extern int arm_attr_length_push_multi(rtx, rtx);
extern void arm_expand_compare_and_swap (rtx op[]);
extern void arm_split_compare_and_swap (rtx op[]);
extern void arm_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx, rtx);
extern rtx arm_load_tp (rtx);
#if defined TREE_CODE
extern void arm_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree);
extern bool arm_pad_arg_upward (enum machine_mode, const_tree);
extern bool arm_pad_reg_upward (enum machine_mode, tree, int);
#endif
extern int arm_apply_result_size (void);
#endif /* RTX_CODE */
/* Thumb functions. */
extern void arm_init_expanders (void);
extern const char *thumb1_unexpanded_epilogue (void);
extern void thumb1_expand_prologue (void);
extern void thumb1_expand_epilogue (void);
extern const char *thumb1_output_interwork (void);
#ifdef TREE_CODE
extern int is_called_in_ARM_mode (tree);
#endif
extern int thumb_shiftable_const (unsigned HOST_WIDE_INT);
#ifdef RTX_CODE
extern enum arm_cond_code maybe_get_arm_condition_code (rtx);
extern void thumb1_final_prescan_insn (rtx_insn *);
extern void thumb2_final_prescan_insn (rtx_insn *);
extern const char *thumb_load_double_from_address (rtx *);
extern const char *thumb_output_move_mem_multiple (int, rtx *);
extern const char *thumb_call_via_reg (rtx);
extern void thumb_expand_movmemqi (rtx *);
extern rtx arm_return_addr (int, rtx);
extern void thumb_reload_out_hi (rtx *);
extern void thumb_reload_in_hi (rtx *);
extern void thumb_set_return_address (rtx, rtx);
extern const char *thumb1_output_casesi (rtx *);
extern const char *thumb2_output_casesi (rtx *);
#endif
/* Defined in pe.c. */
extern int arm_dllexport_name_p (const char *);
extern int arm_dllimport_name_p (const char *);
#ifdef TREE_CODE
extern void arm_pe_unique_section (tree, int);
extern void arm_pe_encode_section_info (tree, rtx, int);
extern int arm_dllexport_p (tree);
extern int arm_dllimport_p (tree);
extern void arm_mark_dllexport (tree);
extern void arm_mark_dllimport (tree);
#endif
extern void arm_pr_long_calls (struct cpp_reader *);
extern void arm_pr_no_long_calls (struct cpp_reader *);
extern void arm_pr_long_calls_off (struct cpp_reader *);
extern void arm_lang_object_attributes_init(void);
extern const char *arm_mangle_type (const_tree);
extern void arm_order_regs_for_local_alloc (void);
extern int arm_max_conditional_execute ();
/* Vectorizer cost model implementation. */
struct cpu_vec_costs {
const int scalar_stmt_cost; /* Cost of any scalar operation, excluding
load and store. */
const int scalar_load_cost; /* Cost of scalar load. */
const int scalar_store_cost; /* Cost of scalar store. */
const int vec_stmt_cost; /* Cost of any vector operation, excluding
load, store, vector-to-scalar and
scalar-to-vector operation. */
const int vec_to_scalar_cost; /* Cost of vect-to-scalar operation. */
const int scalar_to_vec_cost; /* Cost of scalar-to-vector operation. */
const int vec_align_load_cost; /* Cost of aligned vector load. */
const int vec_unalign_load_cost; /* Cost of unaligned vector load. */
const int vec_unalign_store_cost; /* Cost of unaligned vector load. */
const int vec_store_cost; /* Cost of vector store. */
const int cond_taken_branch_cost; /* Cost of taken branch for vectorizer
cost model. */
const int cond_not_taken_branch_cost;/* Cost of not taken branch for
vectorizer cost model. */
};
#ifdef RTX_CODE
/* This needs to be here because we need RTX_CODE and similar. */
struct cpu_cost_table;
struct tune_params
{
bool (*rtx_costs) (rtx, RTX_CODE, RTX_CODE, int *, bool);
const struct cpu_cost_table *insn_extra_cost;
bool (*sched_adjust_cost) (rtx_insn *, rtx, rtx_insn *, int *);
int constant_limit;
/* Maximum number of instructions to conditionalise. */
int max_insns_skipped;
int num_prefetch_slots;
int l1_cache_size;
int l1_cache_line_size;
bool prefer_constant_pool;
int (*branch_cost) (bool, bool);
/* Prefer STRD/LDRD instructions over PUSH/POP/LDM/STM. */
bool prefer_ldrd_strd;
/* The preference for non short cirtcuit operation when optimizing for
performance. The first element covers Thumb state and the second one
is for ARM state. */
bool logical_op_non_short_circuit[2];
/* Vectorizer costs. */
const struct cpu_vec_costs* vec_costs;
/* Prefer Neon for 64-bit bitops. */
bool prefer_neon_for_64bits;
/* Prefer 32-bit encoding instead of flag-setting 16-bit encoding. */
bool disparage_flag_setting_t16_encodings;
/* Prefer 32-bit encoding instead of 16-bit encoding where subset of flags
would be set. */
bool disparage_partial_flag_setting_t16_encodings;
/* Prefer to inline string operations like memset by using Neon. */
bool string_ops_prefer_neon;
/* Maximum number of instructions to inline calls to memset. */
int max_insns_inline_memset;
};
extern const struct tune_params *current_tune;
extern int vfp3_const_double_for_fract_bits (rtx);
/* return power of two from operand, otherwise 0. */
extern int vfp3_const_double_for_bits (rtx);
extern void arm_emit_coreregs_64bit_shift (enum rtx_code, rtx, rtx, rtx, rtx,
rtx);
extern bool arm_validize_comparison (rtx *, rtx *, rtx *);
#endif /* RTX_CODE */
extern bool arm_gen_setmem (rtx *);
extern void arm_expand_vec_perm (rtx target, rtx op0, rtx op1, rtx sel);
extern bool arm_expand_vec_perm_const (rtx target, rtx op0, rtx op1, rtx sel);
extern bool arm_autoinc_modes_ok_p (enum machine_mode, enum arm_auto_incmodes);
extern void arm_emit_eabi_attribute (const char *, int, int);
/* Defined in gcc/common/config/arm-common.c. */
extern const char *arm_rewrite_selected_cpu (const char *name);
extern bool arm_is_constant_pool_ref (rtx);
#endif /* ! GCC_ARM_PROTOS_H */
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