Line data Source code
1 : /* Functions for high level gimple building routines.
2 : Copyright (C) 2013-2026 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
7 : it under the terms of the GNU General Public License as published by
8 : the Free Software Foundation; either version 3, or (at your option)
9 : any later version.
10 :
11 : GCC is distributed in the hope that it will be useful,
12 : but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : GNU General Public License 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 "backend.h"
24 : #include "tree.h"
25 : #include "gimple.h"
26 : #include "stringpool.h"
27 : #include "tree-vrp.h"
28 : #include "tree-ssanames.h"
29 :
30 :
31 : /* Return the expression type to use based on the CODE and type of
32 : the given operand OP. If the expression CODE is a comparison,
33 : the returned type is boolean_type_node. Otherwise, it returns
34 : the type of OP. */
35 :
36 : static tree
37 21805 : get_expr_type (enum tree_code code, tree op)
38 : {
39 21805 : return (TREE_CODE_CLASS (code) == tcc_comparison)
40 21805 : ? boolean_type_node
41 21805 : : TREE_TYPE (op);
42 : }
43 :
44 :
45 : /* Build a new gimple assignment. The LHS of the assignment is a new
46 : temporary whose type matches the given expression. MODE indicates
47 : whether the LHS should be an SSA or a normal temporary. CODE is
48 : the expression code for the RHS. OP1 is the first operand and VAL
49 : is an integer value to be used as the second operand. */
50 :
51 : gassign *
52 10320 : build_assign (enum tree_code code, tree op1, int val, tree lhs)
53 : {
54 10320 : tree op2 = build_int_cst (TREE_TYPE (op1), val);
55 10320 : if (lhs == NULL_TREE)
56 10320 : lhs = make_ssa_name (get_expr_type (code, op1));
57 10320 : return gimple_build_assign (lhs, code, op1, op2);
58 : }
59 :
60 : gassign *
61 1080 : build_assign (enum tree_code code, gimple *g, int val, tree lhs )
62 : {
63 1080 : return build_assign (code, gimple_assign_lhs (g), val, lhs);
64 : }
65 :
66 :
67 : /* Build and return a new GIMPLE assignment. The new assignment will
68 : have the opcode CODE and operands OP1 and OP2. The type of the
69 : expression on the RHS is inferred to be the type of OP1.
70 :
71 : The LHS of the statement will be an SSA name or a GIMPLE temporary
72 : in normal form depending on the type of builder invoking this
73 : function. */
74 :
75 : gassign *
76 11485 : build_assign (enum tree_code code, tree op1, tree op2, tree lhs)
77 : {
78 11485 : if (lhs == NULL_TREE)
79 11485 : lhs = make_ssa_name (get_expr_type (code, op1));
80 11485 : return gimple_build_assign (lhs, code, op1, op2);
81 : }
82 :
83 : gassign *
84 735 : build_assign (enum tree_code code, gimple *op1, tree op2, tree lhs)
85 : {
86 735 : return build_assign (code, gimple_assign_lhs (op1), op2, lhs);
87 : }
88 :
89 : gassign *
90 735 : build_assign (enum tree_code code, tree op1, gimple *op2, tree lhs)
91 : {
92 735 : return build_assign (code, op1, gimple_assign_lhs (op2), lhs);
93 : }
94 :
95 : gassign *
96 5375 : build_assign (enum tree_code code, gimple *op1, gimple *op2, tree lhs)
97 : {
98 5375 : return build_assign (code, gimple_assign_lhs (op1), gimple_assign_lhs (op2),
99 5375 : lhs);
100 : }
101 :
102 :
103 : /* Create and return a type cast assignment. This creates a NOP_EXPR
104 : that converts OP to TO_TYPE. */
105 :
106 : gassign *
107 4017 : build_type_cast (tree to_type, tree op, tree lhs)
108 : {
109 4017 : if (lhs == NULL_TREE)
110 4017 : lhs = make_ssa_name (to_type);
111 4017 : return gimple_build_assign (lhs, NOP_EXPR, op);
112 : }
113 :
114 : gassign *
115 3865 : build_type_cast (tree to_type, gimple *op, tree lhs)
116 : {
117 3865 : return build_type_cast (to_type, gimple_assign_lhs (op), lhs);
118 : }
119 :
120 :
121 :
|
