RESOLVED FIXED 154269
FTL should support CompareEq(String:, String:) 
https://bugs.webkit.org/show_bug.cgi?id=154269
Summary FTL should support CompareEq(String:, String:)
Filip Pizlo
Reported 2016-02-15 16:56:38 PST
Patch forthcoming.
Attachments
voila (6.45 KB, patch)
2016-02-16 13:31 PST, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
maybe the patch (11.41 KB, patch)
2016-02-16 14:31 PST, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
the patch (11.75 KB, patch)
2016-02-16 15:54 PST, Filip Pizlo 		benjamin: review+
DetailsFormatted DiffDiff
rebased patch (11.74 KB, patch)
2016-02-16 20:28 PST, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
Show Obsolete (3) View All Add attachment proposed patch, testcase, etc.
Filip Pizlo
Comment 1 2016-02-16 13:31:14 PST
Created attachment 271478 [details] voila Haven't tried it yet
Filip Pizlo
Comment 2 2016-02-16 14:31:14 PST
Created attachment 271484 [details] maybe the patch Still running tests.
Filip Pizlo
Comment 3 2016-02-16 15:54:13 PST
Created attachment 271500 [details] the patch
Benjamin Poulain
Comment 4 2016-02-16 18:26:41 PST
Comment on attachment 271500 [details] the patch View in context: https://bugs.webkit.org/attachment.cgi?id=271500&action=review > Source/JavaScriptCore/ftl/FTLLowerDFGToLLVM.cpp:7739 > + m_out.branch(m_out.notNull(left), usually(leftReadyCase), rarely(slowCase)); > + > + m_out.appendTo(leftReadyCase, rightReadyCase); Do you also need those checks for StringIdent?
Filip Pizlo
Comment 5 2016-02-16 18:32:23 PST
Comment on attachment 271500 [details] the patch View in context: https://bugs.webkit.org/attachment.cgi?id=271500&action=review >> Source/JavaScriptCore/ftl/FTLLowerDFGToLLVM.cpp:7739 >> + m_out.appendTo(leftReadyCase, rightReadyCase); > > Do you also need those checks for StringIdent? StringIdent is handled elsewhere. I believe that speculates that left and right are resolved, as opposed to this, which handles that on the slow path. But no matter how it does it, it's unrelated.
Filip Pizlo
Comment 6 2016-02-16 20:28:01 PST
Created attachment 271523 [details] rebased patch
Filip Pizlo
Comment 7 2016-02-16 21:30:30 PST
Landed in http://trac.webkit.org/changeset/196685
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