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Revert this because we can't clone cyclic MDNodes which are creating during a
build of llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109355 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -27,9 +27,10 @@ Value *llvm::MapValue(const Value *V, ValueToValueMapTy &VM) {
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// NOTE: VMSlot can be invalidated by any reference to VM, which can grow the
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// NOTE: VMSlot can be invalidated by any reference to VM, which can grow the
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// DenseMap. This includes any recursive calls to MapValue.
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// DenseMap. This includes any recursive calls to MapValue.
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// Global values do not need to be seeded into the VM if they are using
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// Global values and non-function-local metadata do not need to be seeded into
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// the identity mapping.
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// the VM if they are using the identity mapping.
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if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MDString>(V))
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if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MDString>(V) ||
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(isa<MDNode>(V) && !cast<MDNode>(V)->isFunctionLocal()))
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return VMSlot = const_cast<Value*>(V);
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return VMSlot = const_cast<Value*>(V);
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if (const MDNode *MD = dyn_cast<MDNode>(V)) {
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if (const MDNode *MD = dyn_cast<MDNode>(V)) {
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