syscall: Move Errno into its own file, for RTEMS.

[pf3gnuchains/gcc-fork.git] / gcc / recog.h

diff --git a/gcc/recog.h b/gcc/recog.h
index 29bc2fd..71dfe2a 100644 (file)
--- a/gcc/recog.h
+++ b/gcc/recog.h
@@ -1,12 +1,12 @@
 /* Declarations for interface to insn recognizer and insn-output.c.
 /* Declarations for interface to insn recognizer and insn-output.c.

-   Copyright (C) 1987, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005
-   Free Software Foundation, Inc.
+   Copyright (C) 1987, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004,
+   2005, 2006, 2007, 2008, 2009, 2010 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
 
 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 2, or (at your option) any later
+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
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,9 +15,11 @@ 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
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_RECOG_H
+#define GCC_RECOG_H

 
 /* Random number that should be large enough for all purposes.  */
 #define MAX_RECOG_ALTERNATIVES 30
 
 /* Random number that should be large enough for all purposes.  */
 #define MAX_RECOG_ALTERNATIVES 30


@@ -51,7 +53,8 @@ struct operand_alternative
 
   /* Nonzero if '&' was found in the constraint string.  */
   unsigned int earlyclobber:1;
 
   /* Nonzero if '&' was found in the constraint string.  */
   unsigned int earlyclobber:1;

-  /* Nonzero if 'm' was found in the constraint string.  */
+  /* 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 memory_ok:1;
   /* Nonzero if 'o' was found in the constraint string.  */
   unsigned int offmem_ok:1;


@@ -72,9 +75,10 @@ struct operand_alternative
 extern void init_recog (void);
 extern void init_recog_no_volatile (void);
 extern int check_asm_operands (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 int validate_change (rtx, rtx *, rtx, int);
-extern int validate_change_maybe_volatile (rtx, rtx *, 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);
 extern int verify_changes (int);
 extern void confirm_change_group (void);
 extern int insn_invalid_p (rtx);
 extern int verify_changes (int);
 extern void confirm_change_group (void);


@@ -83,23 +87,34 @@ extern int num_validated_changes (void);
 extern void cancel_changes (int);
 extern int constrain_operands (int);
 extern int constrain_operands_cached (int);
 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 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_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 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 (rtx);
 #endif
 extern int num_changes_pending (void);
 #ifdef HAVE_cc0
 extern int next_insn_tests_no_inequality (rtx);
 #endif

-extern int reg_fits_class_p (rtx, enum reg_class, int, enum machine_mode);
-extern rtx *find_single_use (rtx, rtx, rtx *);
+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_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);
+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);

 
 extern int recog (rtx, rtx, int *);
 #ifndef GENERATOR_FILE
 
 extern int recog (rtx, rtx, int *);
 #ifndef GENERATOR_FILE


@@ -143,6 +158,19 @@ recog_memoized (rtx insn)
 }
 #endif
 
 }
 #endif
 

+/* 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;
 
 /* Nonzero means volatile operands are recognized.  */
 extern int volatile_ok;
 


@@ -169,6 +197,9 @@ struct recog_data
   /* Gives the constraint string for operand N.  */
   const char *constraints[MAX_RECOG_OPERANDS];
 
   /* 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];
 
   /* Gives the mode of operand N.  */
   enum machine_mode operand_mode[MAX_RECOG_OPERANDS];
 


@@ -202,6 +233,15 @@ struct recog_data
   /* The number of alternatives in the constraints for the insn.  */
   char n_alternatives;
 
   /* 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;
 };
   /* In case we are caching, hold insn data was generated for.  */
   rtx insn;
 };


@@ -229,7 +269,11 @@ struct insn_operand_data
 
   const char strict_low;
 
 
   const char strict_low;
 

+  const char is_operator;
+

   const char eliminable;
   const char eliminable;

+
+  const char allows_mem;

 };
 
 /* Legal values for insn_data.output_format.  Indicate what type of data
 };
 
 /* Legal values for insn_data.output_format.  Indicate what type of data


@@ -239,10 +283,10 @@ struct insn_operand_data
 #define INSN_OUTPUT_FORMAT_MULTI       2       /* const char * const * */
 #define INSN_OUTPUT_FORMAT_FUNCTION    3       /* const char * (*)(...) */
 
 #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 *const name;
 {
   const char *const name;

-#if HAVE_DESIGNATED_INITIALIZERS
+#if HAVE_DESIGNATED_UNION_INITIALIZERS

   union {
     const char *single;
     const char *const *multi;
   union {
     const char *single;
     const char *const *multi;


@@ -258,11 +302,14 @@ struct insn_data
   const insn_gen_fn genfun;
   const struct insn_operand_data *const operand;
 
   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;
 };
 
   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;
 extern int peep2_current_count;

+
+#endif /* GCC_RECOG_H */