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fpizlo@apple.com authored
DFG string concatenation optimizations might emit speculative nodes after emitting nodes that kill the original inputs https://bugs.webkit.org/show_bug.cgi?id=119032 Reviewed by Oliver Hunt. Source/JavaScriptCore: It just needs some Phantom action. * dfg/DFGFixupPhase.cpp: (JSC::DFG::FixupPhase::attemptToMakeFastStringAdd): LayoutTests: * fast/js/dfg-strcat-over-objects-then-exit-on-it-expected.txt: Added. * fast/js/dfg-strcat-over-objects-then-exit-on-it.html: Added. * fast/js/script-tests/dfg-strcat-over-objects-then-exit-on-it.js: Added. (foo): (bar): (x): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153075 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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