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The correct devirtualization check needs to be isVolatile and not isForeign.

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Swift SVN r18877
This commit is contained in:
Nadav Rotem
2014-06-13 19:15:00 +00:00
parent 142db443ed
commit cf6fdb13a4
1 changed files with 1 additions and 2 deletions
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3
lib/SILPasses/Devirtualizer.cpp
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@@ -813,7 +813,6 @@ static ApplyInst *CloneApply(ApplyInst *AI, SILBuilder &Builder) {
OrigCMI->getOperand(),
OrigCMI->getMember(),
OrigCMI->getType());
// Clone the Apply.
auto Args = AI->getArguments();
SmallVector<SILValue, 8> Ret(Args.size());
@@ -835,7 +834,7 @@ static bool specializeClassMethodDispatch(ApplyInst *AI) {
SILType InstanceType = CMI->getOperand().stripCasts().getType();
SILValue ClassInstance = CMI->getOperand();
ClassDecl *CD = InstanceType.getClassOrBoundGenericClass();
if (!CD || CD->isForeign())
if (!CD || CMI->isVolatile())
return false;
// Create a diamond shaped control flow and a checked_cast_branch