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Issue 1396283004: Revert of [x64] Use vcvtlsi2sd when AVX is enabled (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 2 months ago
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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_X64 5 #if V8_TARGET_ARCH_X64
6 6
7 #include "src/base/bits.h" 7 #include "src/base/bits.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/hydrogen-osr.h" 10 #include "src/hydrogen-osr.h"
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4767 // Load value into temp_xmm which will be preserved across potential call to 4767 // Load value into temp_xmm which will be preserved across potential call to
4768 // runtime (MacroAssembler::EnterExitFrameEpilogue preserves only allocatable 4768 // runtime (MacroAssembler::EnterExitFrameEpilogue preserves only allocatable
4769 // XMM registers on x64). 4769 // XMM registers on x64).
4770 if (signedness == SIGNED_INT32) { 4770 if (signedness == SIGNED_INT32) {
4771 DCHECK(SmiValuesAre31Bits()); 4771 DCHECK(SmiValuesAre31Bits());
4772 // There was overflow, so bits 30 and 31 of the original integer 4772 // There was overflow, so bits 30 and 31 of the original integer
4773 // disagree. Try to allocate a heap number in new space and store 4773 // disagree. Try to allocate a heap number in new space and store
4774 // the value in there. If that fails, call the runtime system. 4774 // the value in there. If that fails, call the runtime system.
4775 __ SmiToInteger32(reg, reg); 4775 __ SmiToInteger32(reg, reg);
4776 __ xorl(reg, Immediate(0x80000000)); 4776 __ xorl(reg, Immediate(0x80000000));
4777 __ Cvtlsi2sd(temp_xmm, reg); 4777 __ cvtlsi2sd(temp_xmm, reg);
4778 } else { 4778 } else {
4779 DCHECK(signedness == UNSIGNED_INT32); 4779 DCHECK(signedness == UNSIGNED_INT32);
4780 __ LoadUint32(temp_xmm, reg); 4780 __ LoadUint32(temp_xmm, reg);
4781 } 4781 }
4782 4782
4783 if (FLAG_inline_new) { 4783 if (FLAG_inline_new) {
4784 __ AllocateHeapNumber(reg, tmp, &slow); 4784 __ AllocateHeapNumber(reg, tmp, &slow);
4785 __ jmp(&done, kPointerSize == kInt64Size ? Label::kNear : Label::kFar); 4785 __ jmp(&done, kPointerSize == kInt64Size ? Label::kNear : Label::kFar);
4786 } 4786 }
4787 4787
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5905 RecordSafepoint(Safepoint::kNoLazyDeopt); 5905 RecordSafepoint(Safepoint::kNoLazyDeopt);
5906 } 5906 }
5907 5907
5908 5908
5909 #undef __ 5909 #undef __
5910 5910
5911 } // namespace internal 5911 } // namespace internal
5912 } // namespace v8 5912 } // namespace v8
5913 5913
5914 #endif // V8_TARGET_ARCH_X64 5914 #endif // V8_TARGET_ARCH_X64
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