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[Debug Info] unique MDNodes in the enum types of each compile unit.

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The enum types array by design contains pointers to MDNodes rather than DIRefs.
Unique them when handling the enum types in DwarfDebug.

rdar://17628609


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214139 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren
2014-07-28 23:04:20 +00:00
parent 6514cc5cb5
commit 2bd885aa97
2 changed files with 85 additions and 2 deletions
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9
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -762,8 +762,13 @@ void DwarfDebug::beginModule() {
for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i)
SPMap.insert(std::make_pair(SPs.getElement(i), &CU));
DIArray EnumTypes = CUNode.getEnumTypes();
for (unsigned i = 0, e = EnumTypes.getNumElements(); i != e; ++i)
CU.getOrCreateTypeDIE(EnumTypes.getElement(i));
for (unsigned i = 0, e = EnumTypes.getNumElements(); i != e; ++i) {
DIType Ty(EnumTypes.getElement(i));
// The enum types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
DIType UniqueTy(resolve(Ty.getRef()));
CU.getOrCreateTypeDIE(UniqueTy);
}
DIArray RetainedTypes = CUNode.getRetainedTypes();
for (unsigned i = 0, e = RetainedTypes.getNumElements(); i != e; ++i) {
DIType Ty(RetainedTypes.getElement(i));