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Unified Diff: src/x64/lithium-codegen-x64.cc

Issue 13447003: IA32: Small assembler tweak for divsd->mulsd sequence (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 7 years, 8 months ago
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Index: src/x64/lithium-codegen-x64.cc
===================================================================
--- src/x64/lithium-codegen-x64.cc (revision 14205)
+++ src/x64/lithium-codegen-x64.cc (working copy)
@@ -1793,6 +1793,8 @@
break;
case Token::DIV:
__ divsd(left, right);
+ // Don't delete this mov. It may improve performance on some CPUs,
+ // when there is a mulsd depending on the result
__ movaps(left, left);
break;
case Token::MOD:
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