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Make sure the initialization of a GC root is after its definition. 

llvm-svn: 101388
This commit is contained in:
Nicolas Geoffray 2010-04-15 19:53:35 +00:00
parent 839cdaa70a
commit 19cd1d84ad
1 changed files with 4 additions and 3 deletions
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7
llvm/lib/CodeGen/GCStrategy.cpp
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@ -181,9 +181,10 @@ bool LowerIntrinsics::InsertRootInitializers(Function &F, AllocaInst **Roots,
for (AllocaInst **I = Roots, **E = Roots + Count; I != E; ++I)
if (!InitedRoots.count(*I)) {
new StoreInst(ConstantPointerNull::get(cast<PointerType>(
cast<PointerType>((*I)->getType())->getElementType())),
*I, IP);
StoreInst* SI = new StoreInst(ConstantPointerNull::get(cast<PointerType>(
cast<PointerType>((*I)->getType())->getElementType())),
*I);
SI->insertAfter(*I);
MadeChange = true;
}