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Revert this because we can't clone cyclic MDNodes which are creating during a 

build of llvm-gcc.

llvm-svn: 109355
This commit is contained in:
Nick Lewycky 2010-07-24 20:54:02 +00:00
parent 3c8eb80d93
commit 7bc0443f2b
1 changed files with 4 additions and 3 deletions
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7
llvm/lib/Transforms/Utils/ValueMapper.cpp
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@ -27,9 +27,10 @@ Value *llvm::MapValue(const Value *V, ValueToValueMapTy &VM) {
// NOTE: VMSlot can be invalidated by any reference to VM, which can grow the
// DenseMap. This includes any recursive calls to MapValue.
// Global values do not need to be seeded into the VM if they are using
// the identity mapping.
if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MDString>(V))
// Global values and non-function-local metadata do not need to be seeded into
// the VM if they are using the identity mapping.
if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MDString>(V) ||
(isa<MDNode>(V) && !cast<MDNode>(V)->isFunctionLocal()))
return VMSlot = const_cast<Value*>(V);
if (const MDNode *MD = dyn_cast<MDNode>(V)) {