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Bug 919509 - Watch for new properties added inside loop bodies, r=jandem.

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This commit is contained in:
Brian Hackett 2013-10-03 08:32:24 -06:00
parent b5995f0225
commit 305962fce0
1 changed files with 7 additions and 0 deletions
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7
js/src/jit/IonAnalysis.cpp
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@ -2144,6 +2144,13 @@ jit::AnalyzeNewScriptProperties(JSContext *cx, JSFunction *fun,
}
}
// Also check to see if the instruction is inside a loop body. Even if
// an access will always execute in the script, if it executes multiple
// times then we can get confused when rolling back objects while
// clearing the new script information.
if (ins->block()->loopDepth() != 0)
definitelyExecuted = false;
bool handled = false;
if (!AnalyzePoppedThis(cx, type, thisValue, ins, definitelyExecuted,
baseobj, initializerList, &accessedProperties, &handled))