1 /* Gimple simplify definitions. 2 3 Copyright (C) 2011-2018 Free Software Foundation, Inc. 4 Contributed by Richard Guenther <rguenther@suse.de> 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free 10 Software Foundation; either version 3, or (at your option) any later 11 version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 #ifndef GCC_GIMPLE_MATCH_H 23 #define GCC_GIMPLE_MATCH_H 24 25 26 /* Helper to transparently allow tree codes and builtin function codes 27 exist in one storage entity. */ 28 class code_helper 29 { 30 public: 31 code_helper () {} 32 code_helper (tree_code code) : rep ((int) code) {} 33 code_helper (combined_fn fn) : rep (-(int) fn) {} 34 operator tree_code () const { return (tree_code) rep; } 35 operator combined_fn () const { return (combined_fn) -rep; } 36 bool is_tree_code () const { return rep > 0; } 37 bool is_fn_code () const { return rep < 0; } 38 int get_rep () const { return rep; } 39 private: 40 int rep; 41 }; 42 43 /* Return whether OPS[0] with CODE is a non-expression result and 44 a gimple value. */ 45 46 inline bool 47 gimple_simplified_result_is_gimple_val (code_helper code, tree *ops) 48 { 49 return (code.is_tree_code () 50 && (TREE_CODE_LENGTH ((tree_code) code) == 0 51 || ((tree_code) code) == ADDR_EXPR) 52 && is_gimple_val (ops[0])); 53 } 54 55 extern tree (*mprts_hook) (code_helper, tree, tree *); 56 57 bool gimple_simplify (gimple *, code_helper *, tree *, gimple_seq *, 58 tree (*)(tree), tree (*)(tree)); 59 bool gimple_resimplify1 (gimple_seq *, code_helper *, tree, tree *, 60 tree (*)(tree)); 61 bool gimple_resimplify2 (gimple_seq *, code_helper *, tree, tree *, 62 tree (*)(tree)); 63 bool gimple_resimplify3 (gimple_seq *, code_helper *, tree, tree *, 64 tree (*)(tree)); 65 tree maybe_push_res_to_seq (code_helper, tree, tree *, 66 gimple_seq *, tree res = NULL_TREE); 67 void maybe_build_generic_op (enum tree_code, tree, tree *); 68 69 70 #endif /* GCC_GIMPLE_MATCH_H */ 71