gcc/generic-match-head.c

   1 /* Preamble and helpers for the autogenerated generic-match.c file.
   2    Copyright (C) 2014-2015 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "alias.h"
  24 #include "symtab.h"
  25 #include "options.h"
  26 #include "tree.h"
  27 #include "fold-const.h"
  28 #include "stringpool.h"
  29 #include "stor-layout.h"
  30 #include "flags.h"
  31 #include "tm.h"
  32 #include "hard-reg-set.h"
  33 #include "function.h"
  34 #include "predict.h"
  35 #include "basic-block.h"
  36 #include "tree-ssa-alias.h"
  37 #include "internal-fn.h"
  38 #include "gimple-expr.h"
  39 #include "gimple.h"
  40 #include "gimple-ssa.h"
  41 #include "tree-ssanames.h"
  42 #include "gimple-fold.h"
  43 #include "gimple-iterator.h"
  44 #include "rtl.h"
  45 #include "insn-config.h"
  46 #include "expmed.h"
  47 #include "dojump.h"
  48 #include "explow.h"
  49 #include "calls.h"
  50 #include "emit-rtl.h"
  51 #include "varasm.h"
  52 #include "stmt.h"
  53 #include "expr.h"
  54 #include "tree-dfa.h"
  55 #include "builtins.h"
  56 #include "tree-phinodes.h"
  57 #include "ssa-iterators.h"
  58 #include "dumpfile.h"
  59 #include "generic-match.h"
  60
  61 /* Routine to determine if the types T1 and T2 are effectively
  62    the same for GENERIC.  If T1 or T2 is not a type, the test
  63    applies to their TREE_TYPE.  */
  64
  65 static inline bool
  66 types_match (tree t1, tree t2)
  67 {
  68   if (!TYPE_P (t1))
  69     t1 = TREE_TYPE (t1);
  70   if (!TYPE_P (t2))
  71     t2 = TREE_TYPE (t2);
  72
  73   return TYPE_MAIN_VARIANT (t1) == TYPE_MAIN_VARIANT (t2);
  74 }
  75
  76 /* Return if T has a single use.  For GENERIC, we assume this is
  77    always true.  */
  78
  79 static inline bool
  80 single_use (tree t ATTRIBUTE_UNUSED)
  81 {
  82   return true;
  83 }