commit a55a1f4422aa8aefe3a047ab5c3575e019dccc1c
author commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Tue Jul 26 05:35:00 2011 +0000
committer commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Tue Jul 26 05:35:00 2011 +0000
tree ffeeb7d7de41073d8cc69bf9cd8e46ddbb26b199
parent 3f34084e1265e7b4c853ce88998d71b929a7cfe1

DFG non-speculative JIT emits inefficient code for arithmetic
involving two registers
https://bugs.webkit.org/show_bug.cgi?id=65160

Patch by Filip Pizlo <fpizlo@apple.com> on 2011-07-25
Reviewed by Gavin Barraclough.

The non-speculative JIT now emits inline code for double arithmetic, but
still attempts integer arithmetic first.  This is a speed-up on SunSpider
(albeit a small one), and a large speed-up on Kraken.

* dfg/DFGNonSpeculativeJIT.cpp:
(JSC::DFG::NonSpeculativeJIT::basicArithOp):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@91743 268f45cc-cd09-0410-ab3c-d52691b4dbfc