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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 #if V8_TARGET_ARCH_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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2627 true, // is_truncating | 2627 true, // is_truncating |
2628 true); // skip_fastpath | 2628 true); // skip_fastpath |
2629 CallStub(&stub); // DoubleToIStub preserves any registers it needs to clobber | 2629 CallStub(&stub); // DoubleToIStub preserves any registers it needs to clobber |
2630 Pop(lr); | 2630 Pop(lr); |
2631 | 2631 |
2632 Bind(&done); | 2632 Bind(&done); |
2633 } | 2633 } |
2634 | 2634 |
2635 | 2635 |
2636 void MacroAssembler::StubPrologue() { | 2636 void MacroAssembler::StubPrologue() { |
2637 DCHECK(StackPointer().Is(jssp)); | |
2638 UseScratchRegisterScope temps(this); | 2637 UseScratchRegisterScope temps(this); |
2639 Register temp = temps.AcquireX(); | 2638 Register temp = temps.AcquireX(); |
2640 __ Mov(temp, Smi::FromInt(StackFrame::STUB)); | 2639 __ Mov(temp, Smi::FromInt(StackFrame::STUB)); |
2641 // Compiled stubs don't age, and so they don't need the predictable code | 2640 // Compiled stubs don't age, and so they don't need the predictable code |
2642 // ageing sequence. | 2641 // ageing sequence. |
2643 __ Push(lr, fp, cp, temp); | 2642 __ Push(lr, fp, cp, temp); |
2644 __ Add(fp, jssp, StandardFrameConstants::kFixedFrameSizeFromFp); | 2643 __ Add(fp, StackPointer(), StandardFrameConstants::kFixedFrameSizeFromFp); |
2645 } | 2644 } |
2646 | 2645 |
2647 | 2646 |
2648 void MacroAssembler::Prologue(bool code_pre_aging) { | 2647 void MacroAssembler::Prologue(bool code_pre_aging) { |
2649 if (code_pre_aging) { | 2648 if (code_pre_aging) { |
2650 Code* stub = Code::GetPreAgedCodeAgeStub(isolate()); | 2649 Code* stub = Code::GetPreAgedCodeAgeStub(isolate()); |
2651 __ EmitCodeAgeSequence(stub); | 2650 __ EmitCodeAgeSequence(stub); |
2652 } else { | 2651 } else { |
2653 __ EmitFrameSetupForCodeAgePatching(); | 2652 __ EmitFrameSetupForCodeAgePatching(); |
2654 } | 2653 } |
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4931 } | 4930 } |
4932 | 4931 |
4933 | 4932 |
4934 #undef __ | 4933 #undef __ |
4935 | 4934 |
4936 | 4935 |
4937 } // namespace internal | 4936 } // namespace internal |
4938 } // namespace v8 | 4937 } // namespace v8 |
4939 | 4938 |
4940 #endif // V8_TARGET_ARCH_ARM64 | 4939 #endif // V8_TARGET_ARCH_ARM64 |
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