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Don't mark MGetFirstDollarIndex as movable.

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wolfbeast 2018-10-31 17:30:52 +01:00 • committed by Roy Tam
commit c554052ddd
1 changed files with 4 additions and 1 deletions
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5
js/src/jit/MIR.h
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@ -8272,7 +8272,10 @@ class MGetFirstDollarIndex
: MUnaryInstruction(str) : MUnaryInstruction(str)
{ {
setResultType(MIRType::Int32); setResultType(MIRType::Int32);
setMovable();
// Codegen assumes string length > 0 but that's not guaranteed in RegExp.
// Don't allow LICM to move this.
MOZ_ASSERT(!isMovable());
} }
public: public: