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DIBuilder: Don't rauw null pointers with empty arrays in finalize().

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This makes the IR a little easier to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241470 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl
2015-07-06 16:36:02 +00:00
parent 24a1fec2a7
commit 9d4ce7c110
1 changed files with 12 additions and 6 deletions
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18
lib/IR/DIBuilder.cpp
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@@ -90,10 +90,14 @@ void DIBuilder::finalize() {
for (unsigned I = 0, E = AllRetainTypes.size(); I < E; I++) for (unsigned I = 0, E = AllRetainTypes.size(); I < E; I++)
if (RetainSet.insert(AllRetainTypes[I]).second) if (RetainSet.insert(AllRetainTypes[I]).second)
RetainValues.push_back(AllRetainTypes[I]); RetainValues.push_back(AllRetainTypes[I]);
CUNode->replaceRetainedTypes(MDTuple::get(VMContext, RetainValues));
if (!RetainValues.empty())
CUNode->replaceRetainedTypes(MDTuple::get(VMContext, RetainValues));
DISubprogramArray SPs = MDTuple::get(VMContext, AllSubprograms); DISubprogramArray SPs = MDTuple::get(VMContext, AllSubprograms);
CUNode->replaceSubprograms(SPs.get()); if (!AllSubprograms.empty())
CUNode->replaceSubprograms(SPs.get());
for (auto *SP : SPs) { for (auto *SP : SPs) {
if (MDTuple *Temp = SP->getVariables().get()) { if (MDTuple *Temp = SP->getVariables().get()) {
const auto &PV = PreservedVariables.lookup(SP); const auto &PV = PreservedVariables.lookup(SP);
@@ -103,11 +107,13 @@ void DIBuilder::finalize() {
} }
} }
CUNode->replaceGlobalVariables(MDTuple::get(VMContext, AllGVs)); if (!AllGVs.empty())
CUNode->replaceGlobalVariables(MDTuple::get(VMContext, AllGVs));
CUNode->replaceImportedEntities(MDTuple::get( if (!AllImportedModules.empty())
VMContext, SmallVector<Metadata *, 16>(AllImportedModules.begin(), CUNode->replaceImportedEntities(MDTuple::get(
AllImportedModules.end()))); VMContext, SmallVector<Metadata *, 16>(AllImportedModules.begin(),
AllImportedModules.end())));
// Now that all temp nodes have been replaced or deleted, resolve remaining // Now that all temp nodes have been replaced or deleted, resolve remaining
// cycles. // cycles.