Mercurial > hg > CbC > CbC_gcc
diff gcc/optabs-query.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/optabs-query.h Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,184 @@ +/* IR-agnostic target query functions relating to optabs + Copyright (C) 2001-2017 Free Software Foundation, Inc. + +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_OPTABS_QUERY_H +#define GCC_OPTABS_QUERY_H + +#include "insn-opinit.h" +#include "target.h" + +/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing + if the target does not have such an insn. */ + +inline enum insn_code +optab_handler (optab op, machine_mode mode) +{ + unsigned scode = (op << 16) | mode; + gcc_assert (op > LAST_CONV_OPTAB); + return raw_optab_handler (scode); +} + +/* Return the insn used to perform conversion OP from mode FROM_MODE + to mode TO_MODE; return CODE_FOR_nothing if the target does not have + such an insn. */ + +inline enum insn_code +convert_optab_handler (convert_optab op, machine_mode to_mode, + machine_mode from_mode) +{ + unsigned scode = (op << 16) | (from_mode << 8) | to_mode; + gcc_assert (op > unknown_optab && op <= LAST_CONV_OPTAB); + return raw_optab_handler (scode); +} + +enum insn_code convert_optab_handler (convert_optab, machine_mode, + machine_mode, optimization_type); + +/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing + if the target does not have such an insn. */ + +inline enum insn_code +direct_optab_handler (direct_optab op, machine_mode mode) +{ + return optab_handler (op, mode); +} + +enum insn_code direct_optab_handler (convert_optab, machine_mode, + optimization_type); + +/* Return true if UNOPTAB is for a trapping-on-overflow operation. */ + +inline bool +trapv_unoptab_p (optab unoptab) +{ + return (unoptab == negv_optab + || unoptab == absv_optab); +} + +/* Return true if BINOPTAB is for a trapping-on-overflow operation. */ + +inline bool +trapv_binoptab_p (optab binoptab) +{ + return (binoptab == addv_optab + || binoptab == subv_optab + || binoptab == smulv_optab); +} + +/* Return insn code for a comparison operator with VMODE + resultin MASK_MODE, unsigned if UNS is true. */ + +static inline enum insn_code +get_vec_cmp_icode (machine_mode vmode, machine_mode mask_mode, bool uns) +{ + optab tab = uns ? vec_cmpu_optab : vec_cmp_optab; + return convert_optab_handler (tab, vmode, mask_mode); +} + +/* Return insn code for a comparison operator with VMODE + resultin MASK_MODE (only for EQ/NE). */ + +static inline enum insn_code +get_vec_cmp_eq_icode (machine_mode vmode, machine_mode mask_mode) +{ + return convert_optab_handler (vec_cmpeq_optab, vmode, mask_mode); +} + +/* Return insn code for a conditional operator with a comparison in + mode CMODE, unsigned if UNS is true, resulting in a value of mode VMODE. */ + +inline enum insn_code +get_vcond_icode (machine_mode vmode, machine_mode cmode, bool uns) +{ + enum insn_code icode = CODE_FOR_nothing; + if (uns) + icode = convert_optab_handler (vcondu_optab, vmode, cmode); + else + icode = convert_optab_handler (vcond_optab, vmode, cmode); + return icode; +} + +/* Return insn code for a conditional operator with a mask mode + MMODE resulting in a value of mode VMODE. */ + +static inline enum insn_code +get_vcond_mask_icode (machine_mode vmode, machine_mode mmode) +{ + return convert_optab_handler (vcond_mask_optab, vmode, mmode); +} + +/* Return insn code for a conditional operator with a comparison in + mode CMODE (only EQ/NE), resulting in a value of mode VMODE. */ + +static inline enum insn_code +get_vcond_eq_icode (machine_mode vmode, machine_mode cmode) +{ + return convert_optab_handler (vcondeq_optab, vmode, cmode); +} + +/* Enumerates the possible extraction_insn operations. */ +enum extraction_pattern { EP_insv, EP_extv, EP_extzv }; + +/* Describes an instruction that inserts or extracts a bitfield. */ +struct extraction_insn +{ + /* The code of the instruction. */ + enum insn_code icode; + + /* The mode that the structure operand should have. This is byte_mode + when using the legacy insv, extv and extzv patterns to access memory. + If no mode is given, the structure is a BLKmode memory. */ + opt_scalar_int_mode struct_mode; + + /* The mode of the field to be inserted or extracted, and by extension + the mode of the insertion or extraction itself. */ + scalar_int_mode field_mode; + + /* The mode of the field's bit position. This is only important + when the position is variable rather than constant. */ + scalar_int_mode pos_mode; +}; + +bool get_best_reg_extraction_insn (extraction_insn *, + enum extraction_pattern, + unsigned HOST_WIDE_INT, machine_mode); +bool get_best_mem_extraction_insn (extraction_insn *, + enum extraction_pattern, + HOST_WIDE_INT, HOST_WIDE_INT, machine_mode); + +enum insn_code can_extend_p (machine_mode, machine_mode, int); +enum insn_code can_float_p (machine_mode, machine_mode, int); +enum insn_code can_fix_p (machine_mode, machine_mode, int, bool *); +bool can_conditionally_move_p (machine_mode mode); +bool can_vec_perm_p (machine_mode, bool, vec_perm_indices *); +enum insn_code widening_optab_handler (optab, machine_mode, machine_mode); +/* Find a widening optab even if it doesn't widen as much as we want. */ +#define find_widening_optab_handler(A,B,C,D) \ + find_widening_optab_handler_and_mode (A, B, C, D, NULL) +enum insn_code find_widening_optab_handler_and_mode (optab, machine_mode, + machine_mode, int, + machine_mode *); +int can_mult_highpart_p (machine_mode, bool); +bool can_vec_mask_load_store_p (machine_mode, machine_mode, bool); +bool can_compare_and_swap_p (machine_mode, bool); +bool can_atomic_exchange_p (machine_mode, bool); +bool can_atomic_load_p (machine_mode); +bool lshift_cheap_p (bool); + +#endif