Daily bump.
[official-gcc.git] / gcc / tree-ssa-operands.h
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1 /* SSA operand management for trees.
2 Copyright (C) 2003-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
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.
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.
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/>. */
20 #ifndef GCC_TREE_SSA_OPERANDS_H
21 #define GCC_TREE_SSA_OPERANDS_H
23 /* Interface to SSA operands. */
26 /* This represents a pointer to a DEF operand. */
27 typedef tree *def_operand_p;
29 /* This represents a pointer to a USE operand. */
30 typedef ssa_use_operand_t *use_operand_p;
32 /* NULL operand types. */
33 #define NULL_USE_OPERAND_P ((use_operand_p)NULL)
34 #define NULL_DEF_OPERAND_P ((def_operand_p)NULL)
36 /* This represents the USE operands of a stmt. */
37 struct use_optype_d
39 struct use_optype_d *next;
40 struct ssa_use_operand_t use_ptr;
42 typedef struct use_optype_d *use_optype_p;
44 /* This structure represents a variable sized buffer which is allocated by the
45 operand memory manager. Operands are suballocated out of this block. The
46 MEM array varies in size. */
48 struct GTY((chain_next("%h.next"))) ssa_operand_memory_d {
49 struct ssa_operand_memory_d *next;
50 char mem[1];
53 /* Per-function operand caches. */
54 struct GTY(()) ssa_operands {
55 struct ssa_operand_memory_d *operand_memory;
56 unsigned operand_memory_index;
57 /* Current size of the operand memory buffer. */
58 unsigned int ssa_operand_mem_size;
60 bool ops_active;
62 struct use_optype_d * GTY ((skip (""))) free_uses;
65 #define USE_FROM_PTR(PTR) get_use_from_ptr (PTR)
66 #define DEF_FROM_PTR(PTR) get_def_from_ptr (PTR)
67 #define SET_USE(USE, V) set_ssa_use_from_ptr (USE, V)
68 #define SET_DEF(DEF, V) ((*(DEF)) = (V))
70 #define USE_STMT(USE) (USE)->loc.stmt
72 #define USE_OP_PTR(OP) (&((OP)->use_ptr))
73 #define USE_OP(OP) (USE_FROM_PTR (USE_OP_PTR (OP)))
75 #define PHI_RESULT_PTR(PHI) gimple_phi_result_ptr (PHI)
76 #define PHI_RESULT(PHI) DEF_FROM_PTR (PHI_RESULT_PTR (PHI))
77 #define SET_PHI_RESULT(PHI, V) SET_DEF (PHI_RESULT_PTR (PHI), (V))
79 #define PHI_ARG_DEF(PHI, I) USE_FROM_PTR (PHI_ARG_DEF_PTR ((PHI), (I)))
81 #define PHI_ARG_DEF_PTR(PHI, I) gimple_phi_arg_imm_use_ptr ((PHI), (I))
82 #define PHI_ARG_DEF(PHI, I) gimple_phi_arg_def ((PHI), (I))
83 #define SET_PHI_ARG_DEF(PHI, I, V) \
84 SET_USE (PHI_ARG_DEF_PTR ((PHI), (I)), (V))
85 #define PHI_ARG_DEF_FROM_EDGE(PHI, E) \
86 PHI_ARG_DEF ((PHI), (E)->dest_idx)
87 #define PHI_ARG_DEF_PTR_FROM_EDGE(PHI, E) \
88 PHI_ARG_DEF_PTR ((PHI), (E)->dest_idx)
89 #define PHI_ARG_INDEX_FROM_USE(USE) phi_arg_index_from_use (USE)
92 extern bool ssa_operands_active (struct function *);
93 extern void init_ssa_operands (struct function *fn);
94 extern void fini_ssa_operands (struct function *);
95 extern bool verify_ssa_operands (struct function *, gimple *stmt);
96 extern void free_stmt_operands (struct function *, gimple *);
97 extern void update_stmt_operands (struct function *, gimple *);
98 extern void swap_ssa_operands (gimple *, tree *, tree *);
99 extern bool verify_imm_links (FILE *f, tree var);
101 extern void dump_immediate_uses_for (FILE *file, tree var);
102 extern void dump_immediate_uses (FILE *file);
103 extern void debug_immediate_uses (void);
104 extern void debug_immediate_uses_for (tree var);
106 extern void unlink_stmt_vdef (gimple *);
108 /* Return the tree pointed-to by USE. */
109 static inline tree
110 get_use_from_ptr (use_operand_p use)
112 return *(use->use);
115 /* Return the tree pointed-to by DEF. */
116 static inline tree
117 get_def_from_ptr (def_operand_p def)
119 return *def;
122 #endif /* GCC_TREE_SSA_OPERANDS_H */