RESOLVED FIXED 169867
B3::LowerToAir incorrectly selects BitXor(AtomicStrongCAS(...), $1) 
https://bugs.webkit.org/show_bug.cgi?id=169867
Summary B3::LowerToAir incorrectly selects BitXor(AtomicStrongCAS(...), $1)
Filip Pizlo
Reported 2017-03-19 16:14:58 PDT
It thinks that this is just like NotEqual(AtomicStrongCAS(@exp, ...), @exp). It's not. We need to teach it to only look for AtomicWeakCAS in that pattern, not any AtomicCAS.
Attachments
the patch (4.29 KB, patch)
2017-04-04 15:06 PDT, Filip Pizlo 		saam: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Filip Pizlo
Comment 1 2017-04-04 15:06:37 PDT
Created attachment 306210 [details] the patch
Filip Pizlo
Comment 2 2017-04-04 15:38:14 PDT
Landed in https://trac.webkit.org/changeset/214908/webkit
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