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Bug 851067 - Box non-matching argument types. r=h4writer

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This commit is contained in:
Nicolas B. Pierron 2013-03-19 14:41:49 -07:00
parent 28aeb1f5c4
commit f5a3040883
2 changed files with 16 additions and 0 deletions
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10
js/src/ion/IonBuilder.cpp
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@ -3060,6 +3060,16 @@ IonBuilder::addTypeBarrier(uint32_t i, CallInfo &callinfo, types::StackTypeSet *
if (needsBarrier) {
MTypeBarrier *barrier = MTypeBarrier::New(ins, cloneTypeSet(calleeObs), Bailout_Normal);
current->add(barrier);
// Non-matching types are boxed such as the MIRType does not conflict
// with the inferred type.
if (callerObs->getKnownTypeTag() != calleeObs->getKnownTypeTag() &&
ins->type() != MIRType_Value)
{
MBox *box = MBox::New(ins);
current->add(box);
ins = box;
}
}
if (i == 0)

6
js/src/jit-test/tests/ion/bug851067.js Normal file
View File

@ -0,0 +1,6 @@
function toPrinted(value) {
value = String(value);
}
String = Array;
toPrinted(123);
evaluate('toPrinted("foo");');