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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 |
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103 if (!Operand(immediate, rmode).is_single_instruction(this, mov_instr)) { | 103 if (!Operand(immediate, rmode).is_single_instruction(this, mov_instr)) { |
104 size += kInstrSize; | 104 size += kInstrSize; |
105 } | 105 } |
106 return size; | 106 return size; |
107 } | 107 } |
108 | 108 |
109 | 109 |
110 int MacroAssembler::CallStubSize( | 110 int MacroAssembler::CallStubSize( |
111 CodeStub* stub, TypeFeedbackId ast_id, Condition cond) { | 111 CodeStub* stub, TypeFeedbackId ast_id, Condition cond) { |
112 return CallSize( | 112 return CallSize( |
113 stub->GetCode(isolate()), RelocInfo::CODE_TARGET, ast_id, cond); | 113 stub->GetCode(), RelocInfo::CODE_TARGET, ast_id, cond); |
Michael Starzinger
2014/04/24 11:48:13
nit: Should fit into one line now.
Sven Panne
2014/04/24 12:02:21
Done.
| |
114 } | 114 } |
115 | 115 |
116 | 116 |
117 int MacroAssembler::CallSizeNotPredictableCodeSize( | 117 int MacroAssembler::CallSizeNotPredictableCodeSize( |
118 Address target, RelocInfo::Mode rmode, Condition cond) { | 118 Address target, RelocInfo::Mode rmode, Condition cond) { |
119 int size = 2 * kInstrSize; | 119 int size = 2 * kInstrSize; |
120 Instr mov_instr = cond | MOV | LeaveCC; | 120 Instr mov_instr = cond | MOV | LeaveCC; |
121 intptr_t immediate = reinterpret_cast<intptr_t>(target); | 121 intptr_t immediate = reinterpret_cast<intptr_t>(target); |
122 if (!Operand(immediate, rmode).is_single_instruction(NULL, mov_instr)) { | 122 if (!Operand(immediate, rmode).is_single_instruction(NULL, mov_instr)) { |
123 size += kInstrSize; | 123 size += kInstrSize; |
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1335 b(hi, fail); | 1335 b(hi, fail); |
1336 } | 1336 } |
1337 | 1337 |
1338 | 1338 |
1339 #ifdef ENABLE_DEBUGGER_SUPPORT | 1339 #ifdef ENABLE_DEBUGGER_SUPPORT |
1340 void MacroAssembler::DebugBreak() { | 1340 void MacroAssembler::DebugBreak() { |
1341 mov(r0, Operand::Zero()); | 1341 mov(r0, Operand::Zero()); |
1342 mov(r1, Operand(ExternalReference(Runtime::kDebugBreak, isolate()))); | 1342 mov(r1, Operand(ExternalReference(Runtime::kDebugBreak, isolate()))); |
1343 CEntryStub ces(isolate(), 1); | 1343 CEntryStub ces(isolate(), 1); |
1344 ASSERT(AllowThisStubCall(&ces)); | 1344 ASSERT(AllowThisStubCall(&ces)); |
1345 Call(ces.GetCode(isolate()), RelocInfo::DEBUG_BREAK); | 1345 Call(ces.GetCode(), RelocInfo::DEBUG_BREAK); |
1346 } | 1346 } |
1347 #endif | 1347 #endif |
1348 | 1348 |
1349 | 1349 |
1350 void MacroAssembler::PushTryHandler(StackHandler::Kind kind, | 1350 void MacroAssembler::PushTryHandler(StackHandler::Kind kind, |
1351 int handler_index) { | 1351 int handler_index) { |
1352 // Adjust this code if not the case. | 1352 // Adjust this code if not the case. |
1353 STATIC_ASSERT(StackHandlerConstants::kSize == 5 * kPointerSize); | 1353 STATIC_ASSERT(StackHandlerConstants::kSize == 5 * kPointerSize); |
1354 STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize); | 1354 STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize); |
1355 STATIC_ASSERT(StackHandlerConstants::kCodeOffset == 1 * kPointerSize); | 1355 STATIC_ASSERT(StackHandlerConstants::kCodeOffset == 1 * kPointerSize); |
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2313 | 2313 |
2314 // All done. | 2314 // All done. |
2315 bind(&done); | 2315 bind(&done); |
2316 } | 2316 } |
2317 | 2317 |
2318 | 2318 |
2319 void MacroAssembler::CallStub(CodeStub* stub, | 2319 void MacroAssembler::CallStub(CodeStub* stub, |
2320 TypeFeedbackId ast_id, | 2320 TypeFeedbackId ast_id, |
2321 Condition cond) { | 2321 Condition cond) { |
2322 ASSERT(AllowThisStubCall(stub)); // Stub calls are not allowed in some stubs. | 2322 ASSERT(AllowThisStubCall(stub)); // Stub calls are not allowed in some stubs. |
2323 Call(stub->GetCode(isolate()), RelocInfo::CODE_TARGET, ast_id, cond); | 2323 Call(stub->GetCode(), RelocInfo::CODE_TARGET, ast_id, cond); |
2324 } | 2324 } |
2325 | 2325 |
2326 | 2326 |
2327 void MacroAssembler::TailCallStub(CodeStub* stub, Condition cond) { | 2327 void MacroAssembler::TailCallStub(CodeStub* stub, Condition cond) { |
2328 Jump(stub->GetCode(isolate()), RelocInfo::CODE_TARGET, cond); | 2328 Jump(stub->GetCode(), RelocInfo::CODE_TARGET, cond); |
2329 } | 2329 } |
2330 | 2330 |
2331 | 2331 |
2332 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { | 2332 static int AddressOffset(ExternalReference ref0, ExternalReference ref1) { |
2333 return ref0.address() - ref1.address(); | 2333 return ref0.address() - ref1.address(); |
2334 } | 2334 } |
2335 | 2335 |
2336 | 2336 |
2337 void MacroAssembler::CallApiFunctionAndReturn( | 2337 void MacroAssembler::CallApiFunctionAndReturn( |
2338 Register function_address, | 2338 Register function_address, |
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2720 } | 2720 } |
2721 | 2721 |
2722 | 2722 |
2723 void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin) { | 2723 void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin) { |
2724 #if defined(__thumb__) | 2724 #if defined(__thumb__) |
2725 // Thumb mode builtin. | 2725 // Thumb mode builtin. |
2726 ASSERT((reinterpret_cast<intptr_t>(builtin.address()) & 1) == 1); | 2726 ASSERT((reinterpret_cast<intptr_t>(builtin.address()) & 1) == 1); |
2727 #endif | 2727 #endif |
2728 mov(r1, Operand(builtin)); | 2728 mov(r1, Operand(builtin)); |
2729 CEntryStub stub(isolate(), 1); | 2729 CEntryStub stub(isolate(), 1); |
2730 Jump(stub.GetCode(isolate()), RelocInfo::CODE_TARGET); | 2730 Jump(stub.GetCode(), RelocInfo::CODE_TARGET); |
2731 } | 2731 } |
2732 | 2732 |
2733 | 2733 |
2734 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, | 2734 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, |
2735 InvokeFlag flag, | 2735 InvokeFlag flag, |
2736 const CallWrapper& call_wrapper) { | 2736 const CallWrapper& call_wrapper) { |
2737 // You can't call a builtin without a valid frame. | 2737 // You can't call a builtin without a valid frame. |
2738 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 2738 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
2739 | 2739 |
2740 GetBuiltinEntry(r2, id); | 2740 GetBuiltinEntry(r2, id); |
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4091 sub(result, result, Operand(dividend)); | 4091 sub(result, result, Operand(dividend)); |
4092 } | 4092 } |
4093 if (ms.shift() > 0) mov(result, Operand(result, ASR, ms.shift())); | 4093 if (ms.shift() > 0) mov(result, Operand(result, ASR, ms.shift())); |
4094 add(result, result, Operand(dividend, LSR, 31)); | 4094 add(result, result, Operand(dividend, LSR, 31)); |
4095 } | 4095 } |
4096 | 4096 |
4097 | 4097 |
4098 } } // namespace v8::internal | 4098 } } // namespace v8::internal |
4099 | 4099 |
4100 #endif // V8_TARGET_ARCH_ARM | 4100 #endif // V8_TARGET_ARCH_ARM |
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