Patch forthcoming.
Created attachment 137754 [details] the patch
Comment on attachment 137754 [details] the patch r=me
Landed in http://trac.webkit.org/changeset/114570
Created attachment 207446 [details] A testcase file which is related to this patch I have been recently investigate a calculating error problem in Sunspider math-cordic.js case, Which occurs in 2012/3's webkit, but fixed in 2013/4's webkit (qtwebkit-2.3.1), after a dozen of Git "bisect" compile, and finally I could locate to this patch,