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Issue 7607031: Update gc branch to bleeding_edge revision 8862. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/gc
Patch Set: Fix bug in weak-map merge Created 9 years, 4 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 36 matching lines...) Expand 10 before | Expand all | Expand 10 after
47 //------------------------------------------------------------------ 47 //------------------------------------------------------------------
48 // Tables 48 // Tables
49 //------------------------------------------------------------------ 49 //------------------------------------------------------------------
50 struct ByteMnemonic { 50 struct ByteMnemonic {
51 int b; // -1 terminates, otherwise must be in range (0..255) 51 int b; // -1 terminates, otherwise must be in range (0..255)
52 const char* mnem; 52 const char* mnem;
53 OperandOrder op_order_; 53 OperandOrder op_order_;
54 }; 54 };
55 55
56 56
57 static ByteMnemonic two_operands_instr[] = { 57 static const ByteMnemonic two_operands_instr[] = {
58 {0x01, "add", OPER_REG_OP_ORDER}, 58 {0x01, "add", OPER_REG_OP_ORDER},
59 {0x03, "add", REG_OPER_OP_ORDER}, 59 {0x03, "add", REG_OPER_OP_ORDER},
60 {0x09, "or", OPER_REG_OP_ORDER}, 60 {0x09, "or", OPER_REG_OP_ORDER},
61 {0x0B, "or", REG_OPER_OP_ORDER}, 61 {0x0B, "or", REG_OPER_OP_ORDER},
62 {0x1B, "sbb", REG_OPER_OP_ORDER}, 62 {0x1B, "sbb", REG_OPER_OP_ORDER},
63 {0x21, "and", OPER_REG_OP_ORDER}, 63 {0x21, "and", OPER_REG_OP_ORDER},
64 {0x23, "and", REG_OPER_OP_ORDER}, 64 {0x23, "and", REG_OPER_OP_ORDER},
65 {0x29, "sub", OPER_REG_OP_ORDER}, 65 {0x29, "sub", OPER_REG_OP_ORDER},
66 {0x2A, "subb", REG_OPER_OP_ORDER}, 66 {0x2A, "subb", REG_OPER_OP_ORDER},
67 {0x2B, "sub", REG_OPER_OP_ORDER}, 67 {0x2B, "sub", REG_OPER_OP_ORDER},
68 {0x31, "xor", OPER_REG_OP_ORDER}, 68 {0x31, "xor", OPER_REG_OP_ORDER},
69 {0x33, "xor", REG_OPER_OP_ORDER}, 69 {0x33, "xor", REG_OPER_OP_ORDER},
70 {0x38, "cmpb", OPER_REG_OP_ORDER}, 70 {0x38, "cmpb", OPER_REG_OP_ORDER},
71 {0x3A, "cmpb", REG_OPER_OP_ORDER}, 71 {0x3A, "cmpb", REG_OPER_OP_ORDER},
72 {0x3B, "cmp", REG_OPER_OP_ORDER}, 72 {0x3B, "cmp", REG_OPER_OP_ORDER},
73 {0x84, "test_b", REG_OPER_OP_ORDER}, 73 {0x84, "test_b", REG_OPER_OP_ORDER},
74 {0x85, "test", REG_OPER_OP_ORDER}, 74 {0x85, "test", REG_OPER_OP_ORDER},
75 {0x87, "xchg", REG_OPER_OP_ORDER}, 75 {0x87, "xchg", REG_OPER_OP_ORDER},
76 {0x8A, "mov_b", REG_OPER_OP_ORDER}, 76 {0x8A, "mov_b", REG_OPER_OP_ORDER},
77 {0x8B, "mov", REG_OPER_OP_ORDER}, 77 {0x8B, "mov", REG_OPER_OP_ORDER},
78 {0x8D, "lea", REG_OPER_OP_ORDER}, 78 {0x8D, "lea", REG_OPER_OP_ORDER},
79 {-1, "", UNSET_OP_ORDER} 79 {-1, "", UNSET_OP_ORDER}
80 }; 80 };
81 81
82 82
83 static ByteMnemonic zero_operands_instr[] = { 83 static const ByteMnemonic zero_operands_instr[] = {
84 {0xC3, "ret", UNSET_OP_ORDER}, 84 {0xC3, "ret", UNSET_OP_ORDER},
85 {0xC9, "leave", UNSET_OP_ORDER}, 85 {0xC9, "leave", UNSET_OP_ORDER},
86 {0x90, "nop", UNSET_OP_ORDER}, 86 {0x90, "nop", UNSET_OP_ORDER},
87 {0xF4, "hlt", UNSET_OP_ORDER}, 87 {0xF4, "hlt", UNSET_OP_ORDER},
88 {0xCC, "int3", UNSET_OP_ORDER}, 88 {0xCC, "int3", UNSET_OP_ORDER},
89 {0x60, "pushad", UNSET_OP_ORDER}, 89 {0x60, "pushad", UNSET_OP_ORDER},
90 {0x61, "popad", UNSET_OP_ORDER}, 90 {0x61, "popad", UNSET_OP_ORDER},
91 {0x9C, "pushfd", UNSET_OP_ORDER}, 91 {0x9C, "pushfd", UNSET_OP_ORDER},
92 {0x9D, "popfd", UNSET_OP_ORDER}, 92 {0x9D, "popfd", UNSET_OP_ORDER},
93 {0x9E, "sahf", UNSET_OP_ORDER}, 93 {0x9E, "sahf", UNSET_OP_ORDER},
94 {0x99, "cdq", UNSET_OP_ORDER}, 94 {0x99, "cdq", UNSET_OP_ORDER},
95 {0x9B, "fwait", UNSET_OP_ORDER}, 95 {0x9B, "fwait", UNSET_OP_ORDER},
96 {0xFC, "cld", UNSET_OP_ORDER}, 96 {0xFC, "cld", UNSET_OP_ORDER},
97 {0xAB, "stos", UNSET_OP_ORDER}, 97 {0xAB, "stos", UNSET_OP_ORDER},
98 {-1, "", UNSET_OP_ORDER} 98 {-1, "", UNSET_OP_ORDER}
99 }; 99 };
100 100
101 101
102 static ByteMnemonic call_jump_instr[] = { 102 static const ByteMnemonic call_jump_instr[] = {
103 {0xE8, "call", UNSET_OP_ORDER}, 103 {0xE8, "call", UNSET_OP_ORDER},
104 {0xE9, "jmp", UNSET_OP_ORDER}, 104 {0xE9, "jmp", UNSET_OP_ORDER},
105 {-1, "", UNSET_OP_ORDER} 105 {-1, "", UNSET_OP_ORDER}
106 }; 106 };
107 107
108 108
109 static ByteMnemonic short_immediate_instr[] = { 109 static const ByteMnemonic short_immediate_instr[] = {
110 {0x05, "add", UNSET_OP_ORDER}, 110 {0x05, "add", UNSET_OP_ORDER},
111 {0x0D, "or", UNSET_OP_ORDER}, 111 {0x0D, "or", UNSET_OP_ORDER},
112 {0x15, "adc", UNSET_OP_ORDER}, 112 {0x15, "adc", UNSET_OP_ORDER},
113 {0x25, "and", UNSET_OP_ORDER}, 113 {0x25, "and", UNSET_OP_ORDER},
114 {0x2D, "sub", UNSET_OP_ORDER}, 114 {0x2D, "sub", UNSET_OP_ORDER},
115 {0x35, "xor", UNSET_OP_ORDER}, 115 {0x35, "xor", UNSET_OP_ORDER},
116 {0x3D, "cmp", UNSET_OP_ORDER}, 116 {0x3D, "cmp", UNSET_OP_ORDER},
117 {-1, "", UNSET_OP_ORDER} 117 {-1, "", UNSET_OP_ORDER}
118 }; 118 };
119 119
120 120
121 // Generally we don't want to generate these because they are subject to partial 121 // Generally we don't want to generate these because they are subject to partial
122 // register stalls. They are included for completeness and because the cmp 122 // register stalls. They are included for completeness and because the cmp
123 // variant is used by the RecordWrite stub. Because it does not update the 123 // variant is used by the RecordWrite stub. Because it does not update the
124 // register it is npt subject to partial register stalls. 124 // register it is not subject to partial register stalls.
125 static ByteMnemonic byte_immediate_instr[] = { 125 static ByteMnemonic byte_immediate_instr[] = {
126 {0x0c, "or", UNSET_OP_ORDER}, 126 {0x0c, "or", UNSET_OP_ORDER},
127 {0x24, "and", UNSET_OP_ORDER}, 127 {0x24, "and", UNSET_OP_ORDER},
128 {0x34, "xor", UNSET_OP_ORDER}, 128 {0x34, "xor", UNSET_OP_ORDER},
129 {0x3c, "cmp", UNSET_OP_ORDER}, 129 {0x3c, "cmp", UNSET_OP_ORDER},
130 {-1, "", UNSET_OP_ORDER} 130 {-1, "", UNSET_OP_ORDER}
131 }; 131 };
132 132
133 133
134 static const char* jump_conditional_mnem[] = { 134 static const char* const jump_conditional_mnem[] = {
135 /*0*/ "jo", "jno", "jc", "jnc", 135 /*0*/ "jo", "jno", "jc", "jnc",
136 /*4*/ "jz", "jnz", "jna", "ja", 136 /*4*/ "jz", "jnz", "jna", "ja",
137 /*8*/ "js", "jns", "jpe", "jpo", 137 /*8*/ "js", "jns", "jpe", "jpo",
138 /*12*/ "jl", "jnl", "jng", "jg" 138 /*12*/ "jl", "jnl", "jng", "jg"
139 }; 139 };
140 140
141 141
142 static const char* set_conditional_mnem[] = { 142 static const char* const set_conditional_mnem[] = {
143 /*0*/ "seto", "setno", "setc", "setnc", 143 /*0*/ "seto", "setno", "setc", "setnc",
144 /*4*/ "setz", "setnz", "setna", "seta", 144 /*4*/ "setz", "setnz", "setna", "seta",
145 /*8*/ "sets", "setns", "setpe", "setpo", 145 /*8*/ "sets", "setns", "setpe", "setpo",
146 /*12*/ "setl", "setnl", "setng", "setg" 146 /*12*/ "setl", "setnl", "setng", "setg"
147 }; 147 };
148 148
149 149
150 static const char* conditional_move_mnem[] = { 150 static const char* const conditional_move_mnem[] = {
151 /*0*/ "cmovo", "cmovno", "cmovc", "cmovnc", 151 /*0*/ "cmovo", "cmovno", "cmovc", "cmovnc",
152 /*4*/ "cmovz", "cmovnz", "cmovna", "cmova", 152 /*4*/ "cmovz", "cmovnz", "cmovna", "cmova",
153 /*8*/ "cmovs", "cmovns", "cmovpe", "cmovpo", 153 /*8*/ "cmovs", "cmovns", "cmovpe", "cmovpo",
154 /*12*/ "cmovl", "cmovnl", "cmovng", "cmovg" 154 /*12*/ "cmovl", "cmovnl", "cmovng", "cmovg"
155 }; 155 };
156 156
157 157
158 enum InstructionType { 158 enum InstructionType {
159 NO_INSTR, 159 NO_INSTR,
160 ZERO_OPERANDS_INSTR, 160 ZERO_OPERANDS_INSTR,
(...skipping 16 matching lines...) Expand all
177 177
178 class InstructionTable { 178 class InstructionTable {
179 public: 179 public:
180 InstructionTable(); 180 InstructionTable();
181 const InstructionDesc& Get(byte x) const { return instructions_[x]; } 181 const InstructionDesc& Get(byte x) const { return instructions_[x]; }
182 182
183 private: 183 private:
184 InstructionDesc instructions_[256]; 184 InstructionDesc instructions_[256];
185 void Clear(); 185 void Clear();
186 void Init(); 186 void Init();
187 void CopyTable(ByteMnemonic bm[], InstructionType type); 187 void CopyTable(const ByteMnemonic bm[], InstructionType type);
188 void SetTableRange(InstructionType type, 188 void SetTableRange(InstructionType type,
189 byte start, 189 byte start,
190 byte end, 190 byte end,
191 const char* mnem); 191 const char* mnem);
192 void AddJumpConditionalShort(); 192 void AddJumpConditionalShort();
193 }; 193 };
194 194
195 195
196 InstructionTable::InstructionTable() { 196 InstructionTable::InstructionTable() {
197 Clear(); 197 Clear();
(...skipping 19 matching lines...) Expand all
217 AddJumpConditionalShort(); 217 AddJumpConditionalShort();
218 SetTableRange(REGISTER_INSTR, 0x40, 0x47, "inc"); 218 SetTableRange(REGISTER_INSTR, 0x40, 0x47, "inc");
219 SetTableRange(REGISTER_INSTR, 0x48, 0x4F, "dec"); 219 SetTableRange(REGISTER_INSTR, 0x48, 0x4F, "dec");
220 SetTableRange(REGISTER_INSTR, 0x50, 0x57, "push"); 220 SetTableRange(REGISTER_INSTR, 0x50, 0x57, "push");
221 SetTableRange(REGISTER_INSTR, 0x58, 0x5F, "pop"); 221 SetTableRange(REGISTER_INSTR, 0x58, 0x5F, "pop");
222 SetTableRange(REGISTER_INSTR, 0x91, 0x97, "xchg eax,"); // 0x90 is nop. 222 SetTableRange(REGISTER_INSTR, 0x91, 0x97, "xchg eax,"); // 0x90 is nop.
223 SetTableRange(MOVE_REG_INSTR, 0xB8, 0xBF, "mov"); 223 SetTableRange(MOVE_REG_INSTR, 0xB8, 0xBF, "mov");
224 } 224 }
225 225
226 226
227 void InstructionTable::CopyTable(ByteMnemonic bm[], InstructionType type) { 227 void InstructionTable::CopyTable(const ByteMnemonic bm[],
228 InstructionType type) {
228 for (int i = 0; bm[i].b >= 0; i++) { 229 for (int i = 0; bm[i].b >= 0; i++) {
229 InstructionDesc* id = &instructions_[bm[i].b]; 230 InstructionDesc* id = &instructions_[bm[i].b];
230 id->mnem = bm[i].mnem; 231 id->mnem = bm[i].mnem;
231 id->op_order_ = bm[i].op_order_; 232 id->op_order_ = bm[i].op_order_;
232 ASSERT_EQ(NO_INSTR, id->type); // Information not already entered. 233 ASSERT_EQ(NO_INSTR, id->type); // Information not already entered.
233 id->type = type; 234 id->type = type;
234 } 235 }
235 } 236 }
236 237
237 238
(...skipping 1398 matching lines...) Expand 10 before | Expand all | Expand 10 after
1636 fprintf(f, " "); 1637 fprintf(f, " ");
1637 } 1638 }
1638 fprintf(f, " %s\n", buffer.start()); 1639 fprintf(f, " %s\n", buffer.start());
1639 } 1640 }
1640 } 1641 }
1641 1642
1642 1643
1643 } // namespace disasm 1644 } // namespace disasm
1644 1645
1645 #endif // V8_TARGET_ARCH_IA32 1646 #endif // V8_TARGET_ARCH_IA32
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