OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 65 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
76 uint64_t r = static_cast<uint32_t>( | 76 uint64_t r = static_cast<uint32_t>( |
77 reinterpret_cast<intptr_t>(roots_register_value)); | 77 reinterpret_cast<intptr_t>(roots_register_value)); |
78 delta = o - r; | 78 delta = o - r; |
79 } | 79 } |
80 return delta; | 80 return delta; |
81 } | 81 } |
82 | 82 |
83 | 83 |
84 Operand MacroAssembler::ExternalOperand(ExternalReference target, | 84 Operand MacroAssembler::ExternalOperand(ExternalReference target, |
85 Register scratch) { | 85 Register scratch) { |
86 if (root_array_available_ && !Serializer::enabled()) { | 86 if (root_array_available_ && !Serializer::enabled(isolate())) { |
87 int64_t delta = RootRegisterDelta(target); | 87 int64_t delta = RootRegisterDelta(target); |
88 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { | 88 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { |
89 return Operand(kRootRegister, static_cast<int32_t>(delta)); | 89 return Operand(kRootRegister, static_cast<int32_t>(delta)); |
90 } | 90 } |
91 } | 91 } |
92 Move(scratch, target); | 92 Move(scratch, target); |
93 return Operand(scratch, 0); | 93 return Operand(scratch, 0); |
94 } | 94 } |
95 | 95 |
96 | 96 |
97 void MacroAssembler::Load(Register destination, ExternalReference source) { | 97 void MacroAssembler::Load(Register destination, ExternalReference source) { |
98 if (root_array_available_ && !Serializer::enabled()) { | 98 if (root_array_available_ && !Serializer::enabled(isolate())) { |
99 int64_t delta = RootRegisterDelta(source); | 99 int64_t delta = RootRegisterDelta(source); |
100 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { | 100 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { |
101 movp(destination, Operand(kRootRegister, static_cast<int32_t>(delta))); | 101 movp(destination, Operand(kRootRegister, static_cast<int32_t>(delta))); |
102 return; | 102 return; |
103 } | 103 } |
104 } | 104 } |
105 // Safe code. | 105 // Safe code. |
106 if (destination.is(rax)) { | 106 if (destination.is(rax)) { |
107 load_rax(source); | 107 load_rax(source); |
108 } else { | 108 } else { |
109 Move(kScratchRegister, source); | 109 Move(kScratchRegister, source); |
110 movp(destination, Operand(kScratchRegister, 0)); | 110 movp(destination, Operand(kScratchRegister, 0)); |
111 } | 111 } |
112 } | 112 } |
113 | 113 |
114 | 114 |
115 void MacroAssembler::Store(ExternalReference destination, Register source) { | 115 void MacroAssembler::Store(ExternalReference destination, Register source) { |
116 if (root_array_available_ && !Serializer::enabled()) { | 116 if (root_array_available_ && !Serializer::enabled(isolate())) { |
117 int64_t delta = RootRegisterDelta(destination); | 117 int64_t delta = RootRegisterDelta(destination); |
118 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { | 118 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { |
119 movp(Operand(kRootRegister, static_cast<int32_t>(delta)), source); | 119 movp(Operand(kRootRegister, static_cast<int32_t>(delta)), source); |
120 return; | 120 return; |
121 } | 121 } |
122 } | 122 } |
123 // Safe code. | 123 // Safe code. |
124 if (source.is(rax)) { | 124 if (source.is(rax)) { |
125 store_rax(destination); | 125 store_rax(destination); |
126 } else { | 126 } else { |
127 Move(kScratchRegister, destination); | 127 Move(kScratchRegister, destination); |
128 movp(Operand(kScratchRegister, 0), source); | 128 movp(Operand(kScratchRegister, 0), source); |
129 } | 129 } |
130 } | 130 } |
131 | 131 |
132 | 132 |
133 void MacroAssembler::LoadAddress(Register destination, | 133 void MacroAssembler::LoadAddress(Register destination, |
134 ExternalReference source) { | 134 ExternalReference source) { |
135 if (root_array_available_ && !Serializer::enabled()) { | 135 if (root_array_available_ && !Serializer::enabled(isolate())) { |
136 int64_t delta = RootRegisterDelta(source); | 136 int64_t delta = RootRegisterDelta(source); |
137 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { | 137 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { |
138 leap(destination, Operand(kRootRegister, static_cast<int32_t>(delta))); | 138 leap(destination, Operand(kRootRegister, static_cast<int32_t>(delta))); |
139 return; | 139 return; |
140 } | 140 } |
141 } | 141 } |
142 // Safe code. | 142 // Safe code. |
143 Move(destination, source); | 143 Move(destination, source); |
144 } | 144 } |
145 | 145 |
146 | 146 |
147 int MacroAssembler::LoadAddressSize(ExternalReference source) { | 147 int MacroAssembler::LoadAddressSize(ExternalReference source) { |
148 if (root_array_available_ && !Serializer::enabled()) { | 148 if (root_array_available_ && !Serializer::enabled(isolate())) { |
149 // This calculation depends on the internals of LoadAddress. | 149 // This calculation depends on the internals of LoadAddress. |
150 // It's correctness is ensured by the asserts in the Call | 150 // It's correctness is ensured by the asserts in the Call |
151 // instruction below. | 151 // instruction below. |
152 int64_t delta = RootRegisterDelta(source); | 152 int64_t delta = RootRegisterDelta(source); |
153 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { | 153 if (delta != kInvalidRootRegisterDelta && is_int32(delta)) { |
154 // Operand is leap(scratch, Operand(kRootRegister, delta)); | 154 // Operand is leap(scratch, Operand(kRootRegister, delta)); |
155 // Opcodes : REX.W 8D ModRM Disp8/Disp32 - 4 or 7. | 155 // Opcodes : REX.W 8D ModRM Disp8/Disp32 - 4 or 7. |
156 int size = 4; | 156 int size = 4; |
157 if (!is_int8(static_cast<int32_t>(delta))) { | 157 if (!is_int8(static_cast<int32_t>(delta))) { |
158 size += 3; // Need full four-byte displacement in lea. | 158 size += 3; // Need full four-byte displacement in lea. |
159 } | 159 } |
160 return size; | 160 return size; |
161 } | 161 } |
162 } | 162 } |
163 // Size of movp(destination, src); | 163 // Size of movp(destination, src); |
164 return Assembler::kMoveAddressIntoScratchRegisterInstructionLength; | 164 return Assembler::kMoveAddressIntoScratchRegisterInstructionLength; |
165 } | 165 } |
166 | 166 |
167 | 167 |
168 void MacroAssembler::PushAddress(ExternalReference source) { | 168 void MacroAssembler::PushAddress(ExternalReference source) { |
169 int64_t address = reinterpret_cast<int64_t>(source.address()); | 169 int64_t address = reinterpret_cast<int64_t>(source.address()); |
170 if (is_int32(address) && !Serializer::enabled()) { | 170 if (is_int32(address) && !Serializer::enabled(isolate())) { |
171 if (emit_debug_code()) { | 171 if (emit_debug_code()) { |
172 Move(kScratchRegister, kZapValue, Assembler::RelocInfoNone()); | 172 Move(kScratchRegister, kZapValue, Assembler::RelocInfoNone()); |
173 } | 173 } |
174 Push(Immediate(static_cast<int32_t>(address))); | 174 Push(Immediate(static_cast<int32_t>(address))); |
175 return; | 175 return; |
176 } | 176 } |
177 LoadAddress(kScratchRegister, source); | 177 LoadAddress(kScratchRegister, source); |
178 Push(kScratchRegister); | 178 Push(kScratchRegister); |
179 } | 179 } |
180 | 180 |
(...skipping 87 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
268 bind(&done); | 268 bind(&done); |
269 } | 269 } |
270 } | 270 } |
271 | 271 |
272 | 272 |
273 void MacroAssembler::InNewSpace(Register object, | 273 void MacroAssembler::InNewSpace(Register object, |
274 Register scratch, | 274 Register scratch, |
275 Condition cc, | 275 Condition cc, |
276 Label* branch, | 276 Label* branch, |
277 Label::Distance distance) { | 277 Label::Distance distance) { |
278 if (Serializer::enabled()) { | 278 if (Serializer::enabled(isolate())) { |
279 // Can't do arithmetic on external references if it might get serialized. | 279 // Can't do arithmetic on external references if it might get serialized. |
280 // The mask isn't really an address. We load it as an external reference in | 280 // The mask isn't really an address. We load it as an external reference in |
281 // case the size of the new space is different between the snapshot maker | 281 // case the size of the new space is different between the snapshot maker |
282 // and the running system. | 282 // and the running system. |
283 if (scratch.is(object)) { | 283 if (scratch.is(object)) { |
284 Move(kScratchRegister, ExternalReference::new_space_mask(isolate())); | 284 Move(kScratchRegister, ExternalReference::new_space_mask(isolate())); |
285 andp(scratch, kScratchRegister); | 285 andp(scratch, kScratchRegister); |
286 } else { | 286 } else { |
287 Move(scratch, ExternalReference::new_space_mask(isolate())); | 287 Move(scratch, ExternalReference::new_space_mask(isolate())); |
288 andp(scratch, object); | 288 andp(scratch, object); |
(...skipping 4910 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
5199 if (ms.shift() > 0) sarl(rdx, Immediate(ms.shift())); | 5199 if (ms.shift() > 0) sarl(rdx, Immediate(ms.shift())); |
5200 movl(rax, dividend); | 5200 movl(rax, dividend); |
5201 shrl(rax, Immediate(31)); | 5201 shrl(rax, Immediate(31)); |
5202 addl(rdx, rax); | 5202 addl(rdx, rax); |
5203 } | 5203 } |
5204 | 5204 |
5205 | 5205 |
5206 } } // namespace v8::internal | 5206 } } // namespace v8::internal |
5207 | 5207 |
5208 #endif // V8_TARGET_ARCH_X64 | 5208 #endif // V8_TARGET_ARCH_X64 |
OLD | NEW |