RESOLVED FIXED 64903
DFG speculative JIT sometimes claims to use compare operands twice, leading to use count corruption 
https://bugs.webkit.org/show_bug.cgi?id=64903
Summary DFG speculative JIT sometimes claims to use compare operands twice, leading t...
Filip Pizlo
Reported 2011-07-20 16:40:54 PDT
The DFG speculative JIT's compare() helper method may call the JITCodeGenerator's non-speculative compare helper, which calls use() on the operands. But then SpeculativeJIT::compare() also calls use() on the operands. The SpeculativeJIT::compare() method should not call use() on the operands if the JITCodeGenerator has already done so.
Attachments
the patch (1.81 KB, patch)
2011-07-20 16:45 PDT, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
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Filip Pizlo
Comment 1 2011-07-20 16:45:11 PDT
Created attachment 101526 [details] the patch
WebKit Review Bot
Comment 2 2011-07-20 17:24:13 PDT
Comment on attachment 101526 [details] the patch Clearing flags on attachment: 101526 Committed r91428: <http://trac.webkit.org/changeset/91428>
WebKit Review Bot
Comment 3 2011-07-20 17:24:17 PDT
All reviewed patches have been landed. Closing bug.
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