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comparison: js/src/jit/x64/Bailouts-x64.cpp
js/src/jit/x64/Bailouts-x64.cpp
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| -1:000000000000 | 0:676483217f1b |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "jit/Bailouts.h" | |
| 8 | |
| 9 using namespace js; | |
| 10 using namespace js::jit; | |
| 11 | |
| 12 #if defined(_WIN32) | |
| 13 # pragma pack(push, 1) | |
| 14 #endif | |
| 15 | |
| 16 namespace js { | |
| 17 namespace jit { | |
| 18 | |
| 19 class BailoutStack | |
| 20 { | |
| 21 mozilla::Array<double, FloatRegisters::Total> fpregs_; | |
| 22 mozilla::Array<uintptr_t, Registers::Total> regs_; | |
| 23 uintptr_t frameSize_; | |
| 24 uintptr_t snapshotOffset_; | |
| 25 | |
| 26 public: | |
| 27 MachineState machineState() { | |
| 28 return MachineState::FromBailout(regs_, fpregs_); | |
| 29 } | |
| 30 uint32_t snapshotOffset() const { | |
| 31 return snapshotOffset_; | |
| 32 } | |
| 33 uint32_t frameSize() const { | |
| 34 return frameSize_; | |
| 35 } | |
| 36 uint8_t *parentStackPointer() { | |
| 37 return (uint8_t *)this + sizeof(BailoutStack); | |
| 38 } | |
| 39 }; | |
| 40 | |
| 41 } // namespace jit | |
| 42 } // namespace js | |
| 43 | |
| 44 #if defined(_WIN32) | |
| 45 # pragma pack(pop) | |
| 46 #endif | |
| 47 | |
| 48 IonBailoutIterator::IonBailoutIterator(const JitActivationIterator &activations, | |
| 49 BailoutStack *bailout) | |
| 50 : JitFrameIterator(activations), | |
| 51 machine_(bailout->machineState()) | |
| 52 { | |
| 53 uint8_t *sp = bailout->parentStackPointer(); | |
| 54 uint8_t *fp = sp + bailout->frameSize(); | |
| 55 | |
| 56 current_ = fp; | |
| 57 type_ = JitFrame_IonJS; | |
| 58 topFrameSize_ = current_ - sp; | |
| 59 topIonScript_ = script()->ionScript(); | |
| 60 snapshotOffset_ = bailout->snapshotOffset(); | |
| 61 } | |
| 62 | |
| 63 IonBailoutIterator::IonBailoutIterator(const JitActivationIterator &activations, | |
| 64 InvalidationBailoutStack *bailout) | |
| 65 : JitFrameIterator(activations), | |
| 66 machine_(bailout->machine()) | |
| 67 { | |
| 68 returnAddressToFp_ = bailout->osiPointReturnAddress(); | |
| 69 topIonScript_ = bailout->ionScript(); | |
| 70 const OsiIndex *osiIndex = topIonScript_->getOsiIndex(returnAddressToFp_); | |
| 71 | |
| 72 current_ = (uint8_t*) bailout->fp(); | |
| 73 type_ = JitFrame_IonJS; | |
| 74 topFrameSize_ = current_ - bailout->sp(); | |
| 75 snapshotOffset_ = osiIndex->snapshotOffset(); | |
| 76 } |
