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Utils: Add mapping for uniqued MDLocations

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Still doesn't handle distinct ones.  Part of PR21433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225914 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-01-14 01:20:27 +00:00
parent aafca11ff9
commit 74195b2df3
3 changed files with 60 additions and 3 deletions
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26
lib/Transforms/Utils/ValueMapper.cpp
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@ -219,8 +219,8 @@ static bool shouldRemapUniquedNode(const UniquableMDNode *Node,
return false;
}
static Metadata *cloneMDTuple(const UniquableMDNode *Node,
ValueToValueMapTy &VM, RemapFlags Flags,
static Metadata *cloneMDTuple(const MDTuple *Node, ValueToValueMapTy &VM,
RemapFlags Flags,
ValueMapTypeRemapper *TypeMapper,
ValueMaterializer *Materializer) {
SmallVector<Metadata *, 4> Elts;
@ -232,6 +232,16 @@ static Metadata *cloneMDTuple(const UniquableMDNode *Node,
return MDTuple::get(Node->getContext(), Elts);
}
static Metadata *cloneMDLocation(const MDLocation *Node, ValueToValueMapTy &VM,
RemapFlags Flags,
ValueMapTypeRemapper *TypeMapper,
ValueMaterializer *Materializer) {
return MDLocation::get(
Node->getContext(), Node->getLine(), Node->getColumn(),
mapMetadataOp(Node->getScope(), VM, Flags, TypeMapper, Materializer),
mapMetadataOp(Node->getInlinedAt(), VM, Flags, TypeMapper, Materializer));
}
/// \brief Map a uniqued MDNode.
///
/// Uniqued nodes may not need to be recreated (they may map to themselves).
@ -254,7 +264,17 @@ static Metadata *mapUniquedNode(const UniquableMDNode *Node,
}
// At least one operand needs remapping.
Metadata *NewMD = cloneMDTuple(Node, VM, Flags, TypeMapper, Materializer);
Metadata *NewMD;
switch (Node->getMetadataID()) {
default:
llvm_unreachable("Invalid UniquableMDNode subclass");
#define HANDLE_UNIQUABLE_LEAF(CLASS) \
case Metadata::CLASS##Kind: \
NewMD = \
clone##CLASS(cast<CLASS>(Node), VM, Flags, TypeMapper, Materializer); \
break;
#include "llvm/IR/Metadata.def"
}
Dummy->replaceAllUsesWith(NewMD);
MDNode::deleteTemporary(Dummy);
return mapToMetadata(VM, Node, NewMD);