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Fix use of uninitialized variable.

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Fixes linking bitcode files that use the new style comdats for constructors
with ones that don't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215364 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-08-11 17:07:34 +00:00
parent cb7da63124
commit 69ca26cc97
3 changed files with 26 additions and 2 deletions
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8
lib/Linker/LinkModules.cpp
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@@ -644,15 +644,19 @@ bool ModuleLinker::computeResultingSelectionKind(StringRef ComdatName,
bool ModuleLinker::getComdatResult(const Comdat *SrcC,
Comdat::SelectionKind &Result,
bool &LinkFromSrc) {
Comdat::SelectionKind SSK = SrcC->getSelectionKind();
StringRef ComdatName = SrcC->getName();
Module::ComdatSymTabType &ComdatSymTab = DstM->getComdatSymbolTable();
Module::ComdatSymTabType::iterator DstCI = ComdatSymTab.find(ComdatName);
if (DstCI == ComdatSymTab.end())
if (DstCI == ComdatSymTab.end()) {
// Use the comdat if it is only available in one of the modules.
LinkFromSrc = true;
Result = SSK;
return false;
}
const Comdat *DstC = &DstCI->second;
Comdat::SelectionKind SSK = SrcC->getSelectionKind();
Comdat::SelectionKind DSK = DstC->getSelectionKind();
return computeResultingSelectionKind(ComdatName, SSK, DSK, Result,
LinkFromSrc);