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4ee9c684 | 1 | /* SSA operand management for trees. |
f1717362 | 2 | Copyright (C) 2003-2016 Free Software Foundation, Inc. |
4ee9c684 | 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 | |
8c4c00c1 | 8 | Software Foundation; either version 3, or (at your option) any later |
4ee9c684 | 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 | |
8c4c00c1 | 17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 19 | |
20 | #ifndef GCC_TREE_SSA_OPERANDS_H | |
21 | #define GCC_TREE_SSA_OPERANDS_H | |
22 | ||
23 | /* Interface to SSA operands. */ | |
24 | ||
56004dc5 | 25 | |
26 | /* This represents a pointer to a DEF operand. */ | |
b66731e8 | 27 | typedef tree *def_operand_p; |
56004dc5 | 28 | |
29 | /* This represents a pointer to a USE operand. */ | |
b66731e8 | 30 | typedef ssa_use_operand_t *use_operand_p; |
56004dc5 | 31 | |
b66731e8 | 32 | /* NULL operand types. */ |
dd277d48 | 33 | #define NULL_USE_OPERAND_P ((use_operand_p)NULL) |
34 | #define NULL_DEF_OPERAND_P ((def_operand_p)NULL) | |
56004dc5 | 35 | |
56004dc5 | 36 | /* This represents the USE operands of a stmt. */ |
48e1416a | 37 | struct use_optype_d |
5b110d39 | 38 | { |
b66731e8 | 39 | struct use_optype_d *next; |
b3e7c666 | 40 | struct ssa_use_operand_t use_ptr; |
b66731e8 | 41 | }; |
42 | typedef struct use_optype_d *use_optype_p; | |
5b110d39 | 43 | |
dadb7503 | 44 | /* This structure represents a variable sized buffer which is allocated by the |
d819917f | 45 | operand memory manager. Operands are suballocated out of this block. The |
dadb7503 | 46 | MEM array varies in size. */ |
48e1416a | 47 | |
25a27413 | 48 | struct GTY((chain_next("%h.next"))) ssa_operand_memory_d { |
b66731e8 | 49 | struct ssa_operand_memory_d *next; |
dadb7503 | 50 | char mem[1]; |
b66731e8 | 51 | }; |
2cf24776 | 52 | |
fcbe34ba | 53 | /* Per-function operand caches. */ |
fb1e4f4a | 54 | struct GTY(()) ssa_operands { |
fcbe34ba | 55 | struct ssa_operand_memory_d *operand_memory; |
56 | unsigned operand_memory_index; | |
363d040e | 57 | /* Current size of the operand memory buffer. */ |
58 | unsigned int ssa_operand_mem_size; | |
fcbe34ba | 59 | |
60 | bool ops_active; | |
61 | ||
fcbe34ba | 62 | struct use_optype_d * GTY ((skip (""))) free_uses; |
b66731e8 | 63 | }; |
48e1416a | 64 | |
b66731e8 | 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)) | |
69 | ||
75a70cf9 | 70 | #define USE_STMT(USE) (USE)->loc.stmt |
b66731e8 | 71 | |
72 | #define USE_OP_PTR(OP) (&((OP)->use_ptr)) | |
73 | #define USE_OP(OP) (USE_FROM_PTR (USE_OP_PTR (OP))) | |
74 | ||
75a70cf9 | 75 | #define PHI_RESULT_PTR(PHI) gimple_phi_result_ptr (PHI) |
56004dc5 | 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)) | |
8f6fa493 | 78 | /* |
56004dc5 | 79 | #define PHI_ARG_DEF(PHI, I) USE_FROM_PTR (PHI_ARG_DEF_PTR ((PHI), (I))) |
8f6fa493 | 80 | */ |
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)) | |
56004dc5 | 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) \ | |
77ae8b0f | 86 | PHI_ARG_DEF ((PHI), (E)->dest_idx) |
56004dc5 | 87 | #define PHI_ARG_DEF_PTR_FROM_EDGE(PHI, E) \ |
77ae8b0f | 88 | PHI_ARG_DEF_PTR ((PHI), (E)->dest_idx) |
22aa74c4 | 89 | #define PHI_ARG_INDEX_FROM_USE(USE) phi_arg_index_from_use (USE) |
56004dc5 | 90 | |
2cf24776 | 91 | |
8f6fa493 | 92 | extern bool ssa_operands_active (struct function *); |
5084b2e4 | 93 | extern void init_ssa_operands (struct function *fn); |
861b4e39 | 94 | extern void fini_ssa_operands (struct function *); |
42acab1c | 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 *); | |
22aa74c4 | 99 | extern bool verify_imm_links (FILE *f, tree var); |
100 | ||
22aa74c4 | 101 | extern void dump_immediate_uses_for (FILE *file, tree var); |
8f6fa493 | 102 | extern void dump_immediate_uses (FILE *file); |
22aa74c4 | 103 | extern void debug_immediate_uses (void); |
104 | extern void debug_immediate_uses_for (tree var); | |
b66731e8 | 105 | |
42acab1c | 106 | extern void unlink_stmt_vdef (gimple *); |
260e7e11 | 107 | |
8f6fa493 | 108 | /* Return the tree pointed-to by USE. */ |
109 | static inline tree | |
110 | get_use_from_ptr (use_operand_p use) | |
111 | { | |
112 | return *(use->use); | |
113 | } | |
43daa21e | 114 | |
8f6fa493 | 115 | /* Return the tree pointed-to by DEF. */ |
116 | static inline tree | |
117 | get_def_from_ptr (def_operand_p def) | |
43daa21e | 118 | { |
8f6fa493 | 119 | return *def; |
120 | } | |
b66731e8 | 121 | |
4ee9c684 | 122 | #endif /* GCC_TREE_SSA_OPERANDS_H */ |