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Unified Diff: src/x64/macro-assembler-x64.cc

Issue 1404903004: [x64] Use vcvtlsi2sd when AVX is enabled (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix the test on Win64 Created 5 years, 2 months ago
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Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index ad3827aba572e60eff81d0e83357704bd6bee525..461e097cd67c0131531d9945ba0dd06b530b5a8a 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -788,14 +788,26 @@ void MacroAssembler::PopCallerSaved(SaveFPRegsMode fp_mode,
void MacroAssembler::Cvtlsi2sd(XMMRegister dst, Register src) {
- xorps(dst, dst);
- cvtlsi2sd(dst, src);
+ if (CpuFeatures::IsSupported(AVX)) {
+ CpuFeatureScope scope(this, AVX);
+ vxorpd(dst, dst, dst);
+ vcvtlsi2sd(dst, dst, src);
+ } else {
+ xorps(dst, dst);
+ cvtlsi2sd(dst, src);
+ }
}
void MacroAssembler::Cvtlsi2sd(XMMRegister dst, const Operand& src) {
- xorps(dst, dst);
- cvtlsi2sd(dst, src);
+ if (CpuFeatures::IsSupported(AVX)) {
+ CpuFeatureScope scope(this, AVX);
+ vxorpd(dst, dst, dst);
+ vcvtlsi2sd(dst, dst, src);
+ } else {
+ xorps(dst, dst);
+ cvtlsi2sd(dst, src);
+ }
}
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