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Utils: Extract helper function, NFC

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225897 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-01-14 01:01:19 +00:00
parent cb5c0e6745
commit f29d97eb0f
1 changed files with 27 additions and 15 deletions
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42
lib/Transforms/Utils/ValueMapper.cpp
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@ -154,6 +154,32 @@ static Metadata *mapToSelf(ValueToValueMapTy &VM, const Metadata *MD) {
return mapToMetadata(VM, MD, const_cast<Metadata *>(MD));
}
static Metadata *MapMetadataImpl(const Metadata *MD, ValueToValueMapTy &VM,
RemapFlags Flags,
ValueMapTypeRemapper *TypeMapper,
ValueMaterializer *Materializer);
static Metadata *mapMetadataOp(Metadata *Op, ValueToValueMapTy &VM,
RemapFlags Flags,
ValueMapTypeRemapper *TypeMapper,
ValueMaterializer *Materializer) {
if (!Op)
return nullptr;
if (Metadata *MappedOp =
MapMetadataImpl(Op, VM, Flags, TypeMapper, Materializer))
return MappedOp;
// Use identity map if MappedOp is null and we can ignore missing entries.
if (Flags & RF_IgnoreMissingEntries)
return Op;
// FIXME: This assert crashes during bootstrap, but I think it should be
// correct. For now, just match behaviour from before the metadata/value
// split.
//
// llvm_unreachable("Referenced metadata not in value map!");
return nullptr;
}
static Metadata *MapMetadataImpl(const Metadata *MD, ValueToValueMapTy &VM,
RemapFlags Flags,
ValueMapTypeRemapper *TypeMapper,
@ -190,21 +216,7 @@ static Metadata *MapMetadataImpl(const Metadata *MD, ValueToValueMapTy &VM,
assert(Node->isResolved() && "Unexpected unresolved node");
auto getMappedOp = [&](Metadata *Op) -> Metadata *{
if (!Op)
return nullptr;
if (Metadata *MappedOp =
MapMetadataImpl(Op, VM, Flags, TypeMapper, Materializer))
return MappedOp;
// Use identity map if MappedOp is null and we can ignore missing entries.
if (Flags & RF_IgnoreMissingEntries)
return Op;
// FIXME: This assert crashes during bootstrap, but I think it should be
// correct. For now, just match behaviour from before the metadata/value
// split.
//
// llvm_unreachable("Referenced metadata not in value map!");
return nullptr;
return mapMetadataOp(Op, VM, Flags, TypeMapper, Materializer);
};
// If this is a module-level metadata and we know that nothing at the