X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Frecog.h;h=9b73211e8744d02c6b792764ea924d4e60024ae9;hb=d29a1ab5c0f85e613d581a091a251e57c6f3f8cf;hp=79f22f9135a7111f96c6a6b8d1682cb1f3dd8370;hpb=a8482e91d66166ec082f4240b4192dbc3f294982;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/recog.h b/gcc/recog.h index 79f22f9135a..9b73211e874 100644 --- a/gcc/recog.h +++ b/gcc/recog.h @@ -1,22 +1,22 @@ /* Declarations for interface to insn recognizer and insn-output.c. - Copyright (C) 1987, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1987, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, + 2005, 2006, 2007 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 +. */ /* Random number that should be large enough for all purposes. */ #define MAX_RECOG_ALTERNATIVES 30 @@ -35,7 +35,7 @@ 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. */ @@ -50,159 +50,240 @@ 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 PROTO((void)); -extern void init_recog_no_volatile PROTO((void)); -extern int recog_memoized PROTO((rtx)); -extern int check_asm_operands PROTO((rtx)); -extern int asm_operand_ok PROTO((rtx, const char *)); -extern int validate_change PROTO((rtx, rtx *, rtx, int)); -extern int apply_change_group PROTO((void)); -extern int num_validated_changes PROTO((void)); -extern void cancel_changes PROTO((int)); -extern int constrain_operands PROTO((int)); -extern int memory_address_p PROTO((enum machine_mode, rtx)); -extern int strict_memory_address_p PROTO((enum machine_mode, rtx)); -extern int validate_replace_rtx PROTO((rtx, rtx, rtx)); -extern void validate_replace_rtx_group PROTO((rtx, rtx, rtx)); -extern int validate_replace_src PROTO((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 *); +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); +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_p (enum machine_mode, rtx); +extern int strict_memory_address_p (enum machine_mode, 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 PROTO ((rtx)); +extern int next_insn_tests_no_inequality (rtx); #endif -extern int reg_fits_class_p PROTO((rtx, enum reg_class, int, - enum machine_mode)); -extern rtx *find_single_use PROTO((rtx, rtx, rtx *)); - -extern int general_operand PROTO((rtx, enum machine_mode)); -extern int address_operand PROTO((rtx, enum machine_mode)); -extern int register_operand PROTO((rtx, enum machine_mode)); -extern int scratch_operand PROTO((rtx, enum machine_mode)); -extern int immediate_operand PROTO((rtx, enum machine_mode)); -extern int const_int_operand PROTO((rtx, enum machine_mode)); -extern int const_double_operand PROTO((rtx, enum machine_mode)); -extern int nonimmediate_operand PROTO((rtx, enum machine_mode)); -extern int nonmemory_operand PROTO((rtx, enum machine_mode)); -extern int push_operand PROTO((rtx, enum machine_mode)); -extern int pop_operand PROTO((rtx, enum machine_mode)); -extern int memory_operand PROTO((rtx, enum machine_mode)); -extern int indirect_operand PROTO((rtx, enum machine_mode)); -extern int mode_independent_operand PROTO((rtx, enum machine_mode)); -extern int comparison_operator PROTO((rtx, enum machine_mode)); - -extern int offsettable_memref_p PROTO((rtx)); -extern int offsettable_nonstrict_memref_p PROTO((rtx)); -extern int offsettable_address_p PROTO((int, enum machine_mode, rtx)); -extern int mode_dependent_address_p PROTO((rtx)); - -extern int recog PROTO((rtx, rtx, int *)); -extern void add_clobbers PROTO((rtx, int)); -extern void insn_extract PROTO((rtx)); -extern void extract_insn PROTO((rtx)); -extern void preprocess_constraints PROTO((void)); +extern int reg_fits_class_p (rtx, enum reg_class, int, enum machine_mode); -/* Nonzero means volatile operands are recognized. */ -extern int volatile_ok; - -/* Set by constrain_operands to the number of the alternative that - matched. */ -extern int which_alternative; - -/* The following vectors hold the results from insn_extract. */ - -/* Indexed by N, gives value of operand N. */ -extern rtx recog_operand[]; +extern int offsettable_memref_p (rtx); +extern int offsettable_nonstrict_memref_p (rtx); +extern int offsettable_address_p (int, enum machine_mode, rtx); +extern int mode_dependent_address_p (rtx); -/* Indexed by N, gives location where operand N was found. */ -extern rtx *recog_operand_loc[]; +extern int recog (rtx, rtx, int *); +#ifndef GENERATOR_FILE +static inline int recog_memoized (rtx insn); +#endif +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 (int, int, const char *, + enum machine_mode, HARD_REG_SET *); +#endif +extern rtx peephole2_insns (rtx, rtx, int *); -/* Indexed by N, gives location where the Nth duplicate-appearance of - an operand was found. This is something that matched MATCH_DUP. */ -extern rtx *recog_dup_loc[]; +extern int store_data_bypass_p (rtx, rtx); +extern int if_test_bypass_p (rtx, rtx); -/* Indexed by N, gives the operand number that was duplicated in the - Nth duplicate-appearance of an operand. */ -extern char recog_dup_num[]; +#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. -/* The next variables are set up by extract_insn. */ + This function is the normal interface to instruction recognition. + The automatically-generated function `recog' is normally called + through this one. */ -/* The number of operands of the insn. */ -extern int recog_n_operands; +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 -/* The number of MATCH_DUPs in the insn. */ -extern int recog_n_dups; +/* 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; +} -/* The number of alternatives in the constraints for the insn. */ -extern int recog_n_alternatives; +/* Nonzero means volatile operands are recognized. */ +extern int volatile_ok; -/* Indexed by N, gives the mode of operand N. */ -extern enum machine_mode recog_operand_mode[]; +/* Set by constrain_operands to the number of the alternative that + matched. */ +extern int which_alternative; -/* Indexed by N, gives the constraint string for operand N. */ -extern const char *recog_constraints[]; +/* The following vectors hold the results from insn_extract. */ -/* Indexed by N, gives the type (in, out, inout) for operand N. */ -extern enum op_type recog_op_type[]; +struct recog_data +{ + /* It is very tempting to make the 5 operand related arrays into a + structure and index on that. However, to be source compatible + with all of the existing md file insn constraints and output + templates, we need `operand' as a flat array. Without that + member, making an array for the rest seems pointless. */ + + /* Gives value of operand N. */ + rtx operand[MAX_RECOG_OPERANDS]; + + /* Gives location where operand N was found. */ + rtx *operand_loc[MAX_RECOG_OPERANDS]; + + /* Gives the constraint string for operand N. */ + const char *constraints[MAX_RECOG_OPERANDS]; + + /* Gives the mode of operand N. */ + enum machine_mode operand_mode[MAX_RECOG_OPERANDS]; + + /* Gives the type (in, out, inout) for operand N. */ + enum op_type operand_type[MAX_RECOG_OPERANDS]; + + /* Gives location where the Nth duplicate-appearance of an operand + was found. This is something that matched MATCH_DUP. */ + rtx *dup_loc[MAX_DUP_OPERANDS]; + + /* Gives the operand number that was duplicated in the Nth + duplicate-appearance of an operand. */ + 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 + 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 + supported natives that have both K&R C and unsigned characters are + ROMP and Irix 3, and neither have been seen for a while, but do + continue to consider unsignedness when performing arithmetic inside + a comparison. */ + + /* The number of operands of the insn. */ + char n_operands; + + /* The number of MATCH_DUPs in the insn. */ + char n_dups; + + /* The number of alternatives in the constraints for the insn. */ + char n_alternatives; + + /* 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; +}; -#ifndef REGISTER_CONSTRAINTS -/* Indexed by N, nonzero if operand N should be an address. */ -extern char recog_operand_address_p[]; -#endif +extern struct recog_data recog_data; /* Contains a vector of operand_alternative structures for every operand. Set up by preprocess_constraints. */ extern struct operand_alternative recog_op_alt[MAX_RECOG_OPERANDS][MAX_RECOG_ALTERNATIVES]; -/* Access the output function for CODE. */ - -#define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)]) - -/* Tables defined in insn-output.c that give information about +/* A table defined in insn-output.c that give information about each insn-code value. */ -/* These are vectors indexed by insn-code. Details in genoutput.c. */ - -extern const char *const insn_template[]; +typedef int (*insn_operand_predicate_fn) (rtx, enum machine_mode); +typedef const char * (*insn_output_fn) (rtx *, rtx); +typedef rtx (*insn_gen_fn) (rtx, ...); -extern const char *(*const insn_outfun[]) (); - -extern const int insn_n_operands[]; +struct insn_operand_data +{ + const insn_operand_predicate_fn predicate; -extern const int insn_n_dups[]; + const char *const constraint; -/* Indexed by insn code number, gives # of constraint alternatives. */ + ENUM_BITFIELD(machine_mode) const mode : 16; -extern const int insn_n_alternatives[]; + const char strict_low; -/* These are two-dimensional arrays indexed first by the insn-code - and second by the operand number. Details in genoutput.c. */ + const char eliminable; +}; -#ifdef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */ -extern const char *const insn_operand_constraint[][MAX_RECOG_OPERANDS]; -#endif +/* Legal values for insn_data.output_format. Indicate what type of data + is stored in insn_data.output. */ +#define INSN_OUTPUT_FORMAT_NONE 0 /* abort */ +#define INSN_OUTPUT_FORMAT_SINGLE 1 /* const char * */ +#define INSN_OUTPUT_FORMAT_MULTI 2 /* const char * const * */ +#define INSN_OUTPUT_FORMAT_FUNCTION 3 /* const char * (*)(...) */ -#ifndef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */ -extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS]; +struct insn_data +{ + const char *const name; +#if HAVE_DESIGNATED_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; -extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS]; - -extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS]; - -extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) (); + const char n_operands; + const char n_dups; + const char n_alternatives; + const char output_format; +}; -extern const char * insn_name[]; +extern const struct insn_data insn_data[]; +extern int peep2_current_count;