X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gcc%2Frecog.h;h=71e801edb2ded297bfe27962c59b6918e8049378;hb=6c84d5762f1e1a60b1d4cee0caf8b4e7e0ba5f6f;hp=d4fd4fd6934f30cdf7da5617d953965b2c66a5fd;hpb=e251e2a27f3a38da3d71a016efffa50ec324bbbb;p=gcc.git diff --git a/gcc/recog.h b/gcc/recog.h index d4fd4fd6934..71e801edb2d 100644 --- a/gcc/recog.h +++ b/gcc/recog.h @@ -1,23 +1,24 @@ /* Declarations for interface to insn recognizer and insn-output.c. - Copyright (C) 1987, 1996, 1997, 1998, - 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1987-2013 Free Software Foundation, Inc. -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 -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. +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. -GNU CC 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. +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 +. */ + +#ifndef GCC_RECOG_H +#define GCC_RECOG_H /* Random number that should be large enough for all purposes. */ #define MAX_RECOG_ALTERNATIVES 30 @@ -36,7 +37,7 @@ struct operand_alternative const char *constraint; /* The register class valid for this alternative (possibly NO_REGS). */ - enum reg_class class; + enum reg_class cl; /* "Badness" of this alternative, computed from number of '?' and '!' characters in the constraint string. */ @@ -51,82 +52,123 @@ struct operand_alternative /* Nonzero if '&' was found in the constraint string. */ unsigned int earlyclobber:1; - /* Nonzero if 'm' was found in the constraint string. */ - unsigned int memory_ok:1; + /* Nonzero if TARGET_MEM_CONSTRAINT was found in the constraint + string. */ + unsigned int memory_ok:1; /* Nonzero if 'o' was found in the constraint string. */ - unsigned int offmem_ok:1; + unsigned int offmem_ok:1; /* Nonzero if 'V' was found in the constraint string. */ unsigned int nonoffmem_ok:1; /* Nonzero if '<' was found in the constraint string. */ unsigned int decmem_ok:1; /* Nonzero if '>' was found in the constraint string. */ unsigned int incmem_ok:1; + /* Nonzero if 'p' was found in the constraint string. */ + unsigned int is_address:1; /* Nonzero if 'X' was found in the constraint string, or if the constraint string for this alternative was empty. */ unsigned int anything_ok:1; }; -extern void init_recog PARAMS ((void)); -extern void init_recog_no_volatile PARAMS ((void)); -extern int recog_memoized PARAMS ((rtx)); -extern int check_asm_operands PARAMS ((rtx)); -extern int asm_operand_ok PARAMS ((rtx, const char *)); -extern int validate_change PARAMS ((rtx, rtx *, rtx, int)); -extern int apply_change_group PARAMS ((void)); -extern int num_validated_changes PARAMS ((void)); -extern void cancel_changes PARAMS ((int)); -extern int constrain_operands PARAMS ((int)); -extern int memory_address_p PARAMS ((enum machine_mode, rtx)); -extern int strict_memory_address_p PARAMS ((enum machine_mode, rtx)); -extern int validate_replace_rtx_subexp PARAMS ((rtx, rtx, rtx, rtx *)); -extern int validate_replace_rtx PARAMS ((rtx, rtx, rtx)); -extern void validate_replace_rtx_group PARAMS ((rtx, rtx, rtx)); -extern int validate_replace_src PARAMS ((rtx, rtx, rtx)); +extern void init_recog (void); +extern void init_recog_no_volatile (void); +extern int check_asm_operands (rtx); +extern int asm_operand_ok (rtx, const char *, const char **); +extern bool validate_change (rtx, rtx *, rtx, bool); +extern bool validate_unshare_change (rtx, rtx *, rtx, bool); +extern bool canonicalize_change_group (rtx insn, rtx x); +extern int insn_invalid_p (rtx, bool); +extern int verify_changes (int); +extern void confirm_change_group (void); +extern int apply_change_group (void); +extern int num_validated_changes (void); +extern void cancel_changes (int); +extern int constrain_operands (int); +extern int constrain_operands_cached (int); +extern int memory_address_addr_space_p (enum machine_mode, rtx, addr_space_t); +#define memory_address_p(mode,addr) \ + memory_address_addr_space_p ((mode), (addr), ADDR_SPACE_GENERIC) +extern int strict_memory_address_addr_space_p (enum machine_mode, rtx, + addr_space_t); +#define strict_memory_address_p(mode,addr) \ + strict_memory_address_addr_space_p ((mode), (addr), ADDR_SPACE_GENERIC) +extern int validate_replace_rtx_subexp (rtx, rtx, rtx, rtx *); +extern int validate_replace_rtx (rtx, rtx, rtx); +extern int validate_replace_rtx_part (rtx, rtx, rtx *, rtx); +extern int validate_replace_rtx_part_nosimplify (rtx, rtx, rtx *, rtx); +extern void validate_replace_rtx_group (rtx, rtx, rtx); +extern void validate_replace_src_group (rtx, rtx, rtx); +extern bool validate_simplify_insn (rtx insn); +extern int num_changes_pending (void); #ifdef HAVE_cc0 -extern int next_insn_tests_no_inequality PARAMS ((rtx)); +extern int next_insn_tests_no_inequality (rtx); +#endif +extern bool reg_fits_class_p (const_rtx, reg_class_t, int, enum machine_mode); + +extern int offsettable_memref_p (rtx); +extern int offsettable_nonstrict_memref_p (rtx); +extern int offsettable_address_addr_space_p (int, enum machine_mode, rtx, + addr_space_t); +#define offsettable_address_p(strict,mode,addr) \ + offsettable_address_addr_space_p ((strict), (mode), (addr), \ + ADDR_SPACE_GENERIC) +extern bool mode_dependent_address_p (rtx, addr_space_t); + +extern int recog (rtx, rtx, int *); +#ifndef GENERATOR_FILE +static inline int recog_memoized (rtx insn); #endif -extern int reg_fits_class_p PARAMS ((rtx, enum reg_class, int, - enum machine_mode)); -extern rtx *find_single_use PARAMS ((rtx, rtx, rtx *)); - -extern int general_operand PARAMS ((rtx, enum machine_mode)); -extern int address_operand PARAMS ((rtx, enum machine_mode)); -extern int register_operand PARAMS ((rtx, enum machine_mode)); -extern int pmode_register_operand PARAMS ((rtx, enum machine_mode)); -extern int scratch_operand PARAMS ((rtx, enum machine_mode)); -extern int immediate_operand PARAMS ((rtx, enum machine_mode)); -extern int const_int_operand PARAMS ((rtx, enum machine_mode)); -extern int const_double_operand PARAMS ((rtx, enum machine_mode)); -extern int nonimmediate_operand PARAMS ((rtx, enum machine_mode)); -extern int nonmemory_operand PARAMS ((rtx, enum machine_mode)); -extern int push_operand PARAMS ((rtx, enum machine_mode)); -extern int pop_operand PARAMS ((rtx, enum machine_mode)); -extern int memory_operand PARAMS ((rtx, enum machine_mode)); -extern int indirect_operand PARAMS ((rtx, enum machine_mode)); -extern int mode_independent_operand PARAMS ((rtx, enum machine_mode)); -extern int comparison_operator PARAMS ((rtx, enum machine_mode)); - -extern int offsettable_memref_p PARAMS ((rtx)); -extern int offsettable_nonstrict_memref_p PARAMS ((rtx)); -extern int offsettable_address_p PARAMS ((int, enum machine_mode, rtx)); -extern int mode_dependent_address_p PARAMS ((rtx)); - -extern int recog PARAMS ((rtx, rtx, int *)); -extern void add_clobbers PARAMS ((rtx, int)); -extern void insn_extract PARAMS ((rtx)); -extern void extract_insn PARAMS ((rtx)); -extern void preprocess_constraints PARAMS ((void)); -extern rtx peep2_next_insn PARAMS ((int)); -extern int peep2_regno_dead_p PARAMS ((int, int)); -extern int peep2_reg_dead_p PARAMS ((int, rtx)); +extern void add_clobbers (rtx, int); +extern int added_clobbers_hard_reg_p (int); +extern void insn_extract (rtx); +extern void extract_insn (rtx); +extern void extract_constrain_insn_cached (rtx); +extern void extract_insn_cached (rtx); +extern void preprocess_constraints (void); +extern rtx peep2_next_insn (int); +extern int peep2_regno_dead_p (int, int); +extern int peep2_reg_dead_p (int, rtx); #ifdef CLEAR_HARD_REG_SET -extern rtx peep2_find_free_register PARAMS ((int, int, const char *, - enum machine_mode, - HARD_REG_SET *)); +extern rtx peep2_find_free_register (int, int, const char *, + enum machine_mode, HARD_REG_SET *); +#endif +extern rtx peephole2_insns (rtx, rtx, int *); + +extern int store_data_bypass_p (rtx, rtx); +extern int if_test_bypass_p (rtx, rtx); + +#ifndef GENERATOR_FILE +/* Try recognizing the instruction INSN, + and return the code number that results. + Remember the code so that repeated calls do not + need to spend the time for actual rerecognition. + + This function is the normal interface to instruction recognition. + The automatically-generated function `recog' is normally called + through this one. */ + +static inline int +recog_memoized (rtx insn) +{ + if (INSN_CODE (insn) < 0) + INSN_CODE (insn) = recog (PATTERN (insn), insn, 0); + return INSN_CODE (insn); +} #endif -extern void peephole2_optimize PARAMS ((FILE *)); -extern rtx peephole2_insns PARAMS ((rtx, rtx, int *)); + +/* Skip chars until the next ',' or the end of the string. This is + useful to skip alternatives in a constraint string. */ +static inline const char * +skip_alternative (const char *p) +{ + const char *r = p; + while (*r != '\0' && *r != ',') + r++; + if (*r == ',') + r++; + return r; +} /* Nonzero means volatile operands are recognized. */ extern int volatile_ok; @@ -137,7 +179,7 @@ extern int which_alternative; /* The following vectors hold the results from insn_extract. */ -struct recog_data +struct recog_data_d { /* It is very tempting to make the 5 operand related arrays into a structure and index on that. However, to be source compatible @@ -154,6 +196,9 @@ struct recog_data /* Gives the constraint string for operand N. */ const char *constraints[MAX_RECOG_OPERANDS]; + /* Nonzero if operand N is a match_operator or a match_parallel. */ + char is_operator[MAX_RECOG_OPERANDS]; + /* Gives the mode of operand N. */ enum machine_mode operand_mode[MAX_RECOG_OPERANDS]; @@ -169,7 +214,7 @@ struct recog_data char dup_num[MAX_DUP_OPERANDS]; /* ??? Note that these are `char' instead of `unsigned char' to (try to) - avoid certain lossage from K&R C, wherein `unsigned char' default + avoid certain lossage from K&R C, wherein `unsigned char' default promotes to `unsigned int' instead of `int' as in ISO C. As of 1999, the most common places to bootstrap from K&R C are SunOS and HPUX, both of which have signed characters by default. The only other @@ -186,9 +231,21 @@ struct recog_data /* The number of alternatives in the constraints for the insn. */ char n_alternatives; + + /* True if insn is ASM_OPERANDS. */ + bool is_asm; + + /* Specifies whether an insn alternative is enabled using the + `enabled' attribute in the insn pattern definition. For back + ends not using the `enabled' attribute the array fields are + always set to `true' in expand_insn. */ + bool alternative_enabled_p [MAX_RECOG_ALTERNATIVES]; + + /* In case we are caching, hold insn data was generated for. */ + rtx insn; }; -extern struct recog_data recog_data; +extern struct recog_data_d recog_data; /* Contains a vector of operand_alternative structures for every operand. Set up by preprocess_constraints. */ @@ -197,21 +254,25 @@ extern struct operand_alternative recog_op_alt[MAX_RECOG_OPERANDS][MAX_RECOG_ALT /* A table defined in insn-output.c that give information about each insn-code value. */ -typedef int (*insn_operand_predicate_fn) PARAMS ((rtx, enum machine_mode)); -typedef const char * (*insn_output_fn) PARAMS ((rtx *, rtx)); -typedef rtx (*insn_gen_fn) PARAMS ((rtx, ...)); +typedef int (*insn_operand_predicate_fn) (rtx, enum machine_mode); +typedef const char * (*insn_output_fn) (rtx *, rtx); +typedef rtx (*insn_gen_fn) (rtx, ...); struct insn_operand_data { - insn_operand_predicate_fn predicate; + const insn_operand_predicate_fn predicate; - const char *constraint; + const char *const constraint; - enum machine_mode mode; + ENUM_BITFIELD(machine_mode) const mode : 16; - char strict_low; + const char strict_low; - char eliminable; + const char is_operator; + + const char eliminable; + + const char allows_mem; }; /* Legal values for insn_data.output_format. Indicate what type of data @@ -221,17 +282,33 @@ struct insn_operand_data #define INSN_OUTPUT_FORMAT_MULTI 2 /* const char * const * */ #define INSN_OUTPUT_FORMAT_FUNCTION 3 /* const char * (*)(...) */ -struct insn_data +struct insn_data_d { - const char *name; - const PTR output; - insn_gen_fn genfun; - const struct insn_operand_data *operand; - - char n_operands; - char n_dups; - char n_alternatives; - char output_format; + const char *const name; +#if HAVE_DESIGNATED_UNION_INITIALIZERS + union { + const char *single; + const char *const *multi; + insn_output_fn function; + } output; +#else + struct { + const char *single; + const char *const *multi; + insn_output_fn function; + } output; +#endif + const insn_gen_fn genfun; + const struct insn_operand_data *const operand; + + const char n_generator_args; + const char n_operands; + const char n_dups; + const char n_alternatives; + const char output_format; }; -extern const struct insn_data insn_data[]; +extern const struct insn_data_d insn_data[]; +extern int peep2_current_count; + +#endif /* GCC_RECOG_H */