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Restrict ExtractLinearSum to find non-wrapping results.

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wolfbeast 2018-12-13 12:24:17 +01:00 • committed by Roy Tam
commit 0c5263683a
1 changed files with 1 additions and 1 deletions
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2
js/src/jit/RangeAnalysis.cpp
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@ -2167,7 +2167,7 @@ RangeAnalysis::analyzeLoopPhi(MBasicBlock* header, LoopIterationBound* loopBound
if (initial->block()->isMarked())
return;
SimpleLinearSum modified = ExtractLinearSum(phi->getLoopBackedgeOperand());
SimpleLinearSum modified = ExtractLinearSum(phi->getLoopBackedgeOperand(), MathSpace::Infinite);
if (modified.term != phi || modified.constant == 0)
return;