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DI: Simplify DebugInfoFinder::processType(), NFC

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Handle `DISubroutineType` up-front rather than as part of a branch for
`DICompositeTypeBase`.  The only shared code path was looking through
the base type, but `DISubroutineType` can never have a base type.

This also removes the last use of `DICompositeTypeBase`, since we can
strengthen the cast to `DICompositeType`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243159 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-07-24 20:56:10 +00:00
parent 0567cb7e1a
commit 24b6acf971
1 changed files with 9 additions and 7 deletions
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10
lib/IR/DebugInfo.cpp
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@ -149,20 +149,22 @@ void DebugInfoFinder::processType(DIType *DT) {
if (!addType(DT))
return;
processScope(DT->getScope().resolve(TypeIdentifierMap));
if (auto *DCT = dyn_cast<DICompositeTypeBase>(DT)) {
processType(DCT->getBaseType().resolve(TypeIdentifierMap));
if (auto *ST = dyn_cast<DISubroutineType>(DCT)) {
if (auto *ST = dyn_cast<DISubroutineType>(DT)) {
for (DITypeRef Ref : ST->getTypeArray())
processType(Ref.resolve(TypeIdentifierMap));
return;
}
if (auto *DCT = dyn_cast<DICompositeType>(DT)) {
processType(DCT->getBaseType().resolve(TypeIdentifierMap));
for (Metadata *D : DCT->getElements()) {
if (auto *T = dyn_cast<DIType>(D))
processType(T);
else if (auto *SP = dyn_cast<DISubprogram>(D))
processSubprogram(SP);
}
} else if (auto *DDT = dyn_cast<DIDerivedType>(DT)) {
return;
}
if (auto *DDT = dyn_cast<DIDerivedType>(DT)) {
processType(DDT->getBaseType().resolve(TypeIdentifierMap));
}
}