/* Header file for gimple decl, type and expressions. Copyright (C) 2013-2014 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 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 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 GCC; see the file COPYING3. If not see . */ #ifndef GCC_GIMPLE_EXPR_H #define GCC_GIMPLE_EXPR_H extern bool useless_type_conversion_p (tree, tree); extern void gimple_set_body (tree, gimple_seq); extern gimple_seq gimple_body (tree); extern bool gimple_has_body_p (tree); extern const char *gimple_decl_printable_name (tree, int); extern tree copy_var_decl (tree, tree, tree); extern bool gimple_can_coalesce_p (tree, tree); extern tree create_tmp_var_name (const char *); extern tree create_tmp_var_raw (tree, const char *); extern tree create_tmp_var (tree, const char *); extern tree create_tmp_reg (tree, const char *); extern void extract_ops_from_tree_1 (tree, enum tree_code *, tree *, tree *, tree *); extern void gimple_cond_get_ops_from_tree (tree, enum tree_code *, tree *, tree *); extern bool is_gimple_lvalue (tree); extern bool is_gimple_condexpr (tree); extern bool is_gimple_address (const_tree); extern bool is_gimple_invariant_address (const_tree); extern bool is_gimple_ip_invariant_address (const_tree); extern bool is_gimple_min_invariant (const_tree); extern bool is_gimple_ip_invariant (const_tree); extern bool is_gimple_reg (tree); extern bool is_gimple_val (tree); extern bool is_gimple_asm_val (tree); extern bool is_gimple_min_lval (tree); extern bool is_gimple_call_addr (tree); extern bool is_gimple_mem_ref_addr (tree); extern void mark_addressable (tree); extern bool is_gimple_reg_rhs (tree); /* Return true if a conversion from either type of TYPE1 and TYPE2 to the other is not required. Otherwise return false. */ static inline bool types_compatible_p (tree type1, tree type2) { return (type1 == type2 || (useless_type_conversion_p (type1, type2) && useless_type_conversion_p (type2, type1))); } /* Return true if TYPE is a suitable type for a scalar register variable. */ static inline bool is_gimple_reg_type (tree type) { return !AGGREGATE_TYPE_P (type); } /* Return true if T is a variable. */ static inline bool is_gimple_variable (tree t) { return (TREE_CODE (t) == VAR_DECL || TREE_CODE (t) == PARM_DECL || TREE_CODE (t) == RESULT_DECL || TREE_CODE (t) == SSA_NAME); } /* Return true if T is a GIMPLE identifier (something with an address). */ static inline bool is_gimple_id (tree t) { return (is_gimple_variable (t) || TREE_CODE (t) == FUNCTION_DECL || TREE_CODE (t) == LABEL_DECL || TREE_CODE (t) == CONST_DECL /* Allow string constants, since they are addressable. */ || TREE_CODE (t) == STRING_CST); } /* Return true if OP, an SSA name or a DECL is a virtual operand. */ static inline bool virtual_operand_p (tree op) { if (TREE_CODE (op) == SSA_NAME) { op = SSA_NAME_VAR (op); if (!op) return false; } if (TREE_CODE (op) == VAR_DECL) return VAR_DECL_IS_VIRTUAL_OPERAND (op); return false; } /* Return true if T is something whose address can be taken. */ static inline bool is_gimple_addressable (tree t) { return (is_gimple_id (t) || handled_component_p (t) || TREE_CODE (t) == MEM_REF); } /* Return true if T is a valid gimple constant. */ static inline bool is_gimple_constant (const_tree t) { switch (TREE_CODE (t)) { case INTEGER_CST: case REAL_CST: case FIXED_CST: case STRING_CST: case COMPLEX_CST: case VECTOR_CST: return true; default: return false; } } /* A wrapper around extract_ops_from_tree_1, for callers which expect to see only a maximum of two operands. */ static inline void extract_ops_from_tree (tree expr, enum tree_code *code, tree *op0, tree *op1) { tree op2; extract_ops_from_tree_1 (expr, code, op0, op1, &op2); gcc_assert (op2 == NULL_TREE); } /* Given a valid GIMPLE_CALL function address return the FUNCTION_DECL associated with the callee if known. Otherwise return NULL_TREE. */ static inline tree gimple_call_addr_fndecl (const_tree fn) { if (fn && TREE_CODE (fn) == ADDR_EXPR) { tree fndecl = TREE_OPERAND (fn, 0); if (TREE_CODE (fndecl) == MEM_REF && TREE_CODE (TREE_OPERAND (fndecl, 0)) == ADDR_EXPR && integer_zerop (TREE_OPERAND (fndecl, 1))) fndecl = TREE_OPERAND (TREE_OPERAND (fndecl, 0), 0); if (TREE_CODE (fndecl) == FUNCTION_DECL) return fndecl; } return NULL_TREE; } #endif /* GCC_GIMPLE_EXPR_H */