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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_COMPILER_LINKAGE_H_ | 5 #ifndef V8_COMPILER_LINKAGE_H_ |
| 6 #define V8_COMPILER_LINKAGE_H_ | 6 #define V8_COMPILER_LINKAGE_H_ |
| 7 | 7 |
| 8 #include "src/base/flags.h" | 8 #include "src/base/flags.h" |
| 9 #include "src/compiler/frame.h" | 9 #include "src/compiler/frame.h" |
| 10 #include "src/compiler/operator.h" | 10 #include "src/compiler/operator.h" |
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| 79 static LinkageLocation ForSavedCallerFunction() { | 79 static LinkageLocation ForSavedCallerFunction() { |
| 80 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset - | 80 return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset - |
| 81 StandardFrameConstants::kFunctionOffset) / | 81 StandardFrameConstants::kFunctionOffset) / |
| 82 kPointerSize); | 82 kPointerSize); |
| 83 } | 83 } |
| 84 | 84 |
| 85 static LinkageLocation ConvertToTailCallerLocation( | 85 static LinkageLocation ConvertToTailCallerLocation( |
| 86 LinkageLocation caller_location, int stack_param_delta) { | 86 LinkageLocation caller_location, int stack_param_delta) { |
| 87 if (!caller_location.IsRegister()) { | 87 if (!caller_location.IsRegister()) { |
| 88 return LinkageLocation(STACK_SLOT, | 88 return LinkageLocation(STACK_SLOT, |
| 89 caller_location.GetLocation() - stack_param_delta); | 89 caller_location.GetLocation() + stack_param_delta); |
| 90 } | 90 } |
| 91 return caller_location; | 91 return caller_location; |
| 92 } | 92 } |
| 93 | 93 |
| 94 private: | 94 private: |
| 95 friend class CallDescriptor; | 95 friend class CallDescriptor; |
| 96 friend class OperandGenerator; | 96 friend class OperandGenerator; |
| 97 | 97 |
| 98 enum LocationType { REGISTER, STACK_SLOT }; | 98 enum LocationType { REGISTER, STACK_SLOT }; |
| 99 | 99 |
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| 403 CallDescriptor* const incoming_; | 403 CallDescriptor* const incoming_; |
| 404 | 404 |
| 405 DISALLOW_COPY_AND_ASSIGN(Linkage); | 405 DISALLOW_COPY_AND_ASSIGN(Linkage); |
| 406 }; | 406 }; |
| 407 | 407 |
| 408 } // namespace compiler | 408 } // namespace compiler |
| 409 } // namespace internal | 409 } // namespace internal |
| 410 } // namespace v8 | 410 } // namespace v8 |
| 411 | 411 |
| 412 #endif // V8_COMPILER_LINKAGE_H_ | 412 #endif // V8_COMPILER_LINKAGE_H_ |
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