[Webkit-unassigned] [Bug 104247] Strange results calculating a square root in a loop

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=104247


Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |ap at webkit.org,
                   |                            |barraclough at apple.com,
                   |                            |fpizlo at apple.com,
                   |                            |oliver at apple.com
     Ever Confirmed|0                           |1




--- Comment #2 from Alexey Proskuryakov <ap at webkit.org>  2012-12-06 10:34:15 PST ---
Hits an assertion failure in debug ToT:

ASSERTION FAILED: originalNode->shouldGenerate()
/Users/ap/Safari/OpenSource/Source/JavaScriptCore/dfg/DFGCFGSimplificationPhase.cpp(309) : void JSC::DFG::CFGSimplificationPhase::fixPossibleGetLocal(JSC::DFG::BasicBlock *, JSC::DFG::Edge &, bool)
1   0x10d872563 JSC::DFG::CFGSimplificationPhase::fixPossibleGetLocal(JSC::DFG::BasicBlock*, JSC::DFG::Edge&, bool)
2   0x10d870fb0 JSC::DFG::CFGSimplificationPhase::mergeBlocks(unsigned int, unsigned int, unsigned int)
3   0x10d86fb9e JSC::DFG::CFGSimplificationPhase::run()
4   0x10d86f8c5 bool JSC::DFG::runAndLog<JSC::DFG::CFGSimplificationPhase>(JSC::DFG::CFGSimplificationPhase&)
5   0x10d86f855 bool JSC::DFG::runPhase<JSC::DFG::CFGSimplificationPhase>(JSC::DFG::Graph&)
6   0x10d86f768 JSC::DFG::performCFGSimplification(JSC::DFG::Graph&)

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