[x64] Use vcvtlsi2sd when AVX is enabled

src/x64/assembler-x64.cc

Index: src/x64/assembler-x64.cc
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index 5789782d09f24ef74183a0c7a89b39c607056e49..b6128bb7bd5d476c2bc9e965faf426b737f33e69 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -3047,6 +3047,7 @@ void Assembler::cvttsd2siq(Register dst, const Operand& src) {
 
 
 void Assembler::cvtlsi2sd(XMMRegister dst, const Operand& src) {
+  DCHECK(!IsEnabled(AVX));
   EnsureSpace ensure_space(this);
   emit(0xF2);
   emit_optional_rex_32(dst, src);
@@ -3057,6 +3058,7 @@ void Assembler::cvtlsi2sd(XMMRegister dst, const Operand& src) {
 
 
 void Assembler::cvtlsi2sd(XMMRegister dst, Register src) {
+  DCHECK(!IsEnabled(AVX));
   EnsureSpace ensure_space(this);
   emit(0xF2);
   emit_optional_rex_32(dst, src);