Do not rely on Twine temporaries to survive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106515 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 5f55a3d..41e4bfb 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2257,9 +2257,10 @@
}
// Collect info for variables that were optimized out.
- const Twine FnLVName = Twine("llvm.dbg.lv.", MF->getFunction()->getName());
- if (NamedMDNode *NMD =
- MF->getFunction()->getParent()->getNamedMetadataUsingTwine(FnLVName)) {
+ const Function *F = MF->getFunction();
+ const Module *M = F->getParent();
+ if (NamedMDNode *NMD =
+ M->getNamedMetadataUsingTwine(Twine("llvm.dbg.lv.", F->getName()))) {
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
DIVariable DV(cast_or_null<MDNode>(NMD->getOperand(i)));
if (!DV || !Processed.insert(DV))