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| author | Alexey Samsonov <vonosmas@gmail.com> | 2014-06-05 23:10:19 +0000 |
|---|---|---|
| committer | Alexey Samsonov <vonosmas@gmail.com> | 2014-06-05 23:10:19 +0000 |
| commit | 3b889b9d3167ecd225d0fb3d6eb567e0d974985a (patch) | |
| tree | ff8c447f6314ad9b3269f557367530de63a0194b /lib/CodeGen/AsmPrinter | |
| parent | d605148d07288ba70bb949110d4036caf85de395 (diff) | |
| download | llvm-3b889b9d3167ecd225d0fb3d6eb567e0d974985a.tar.gz llvm-3b889b9d3167ecd225d0fb3d6eb567e0d974985a.tar.bz2 llvm-3b889b9d3167ecd225d0fb3d6eb567e0d974985a.tar.xz | |
Fix null dereference with -debug-only=dwarfdebug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210299 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 46640f85f4..39bff0d1f7 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1220,6 +1220,11 @@ DwarfDebug::collectVariableInfo(SmallPtrSet<const MDNode *, 16> &Processed) { if (Begin->getNumOperands() > 1 && Begin->getOperand(0).isReg() && !Begin->getOperand(0).getReg()) continue; + DEBUG(dbgs() << "DotDebugLoc Pair:\n" << "\t" << *Begin); + if (End != nullptr) + DEBUG(dbgs() << "\t" << *End); + else + DEBUG(dbgs() << "\tNULL\n"); const MCSymbol *StartLabel = getLabelBeforeInsn(Begin); assert(StartLabel && "Forgot label before DBG_VALUE starting a range!"); @@ -1233,8 +1238,6 @@ DwarfDebug::collectVariableInfo(SmallPtrSet<const MDNode *, 16> &Processed) { EndLabel = getLabelBeforeInsn(std::next(I)->first); assert(EndLabel && "Forgot label after instruction ending a range!"); - DEBUG(dbgs() << "DotDebugLoc Pair:\n" - << "\t" << *Begin << "\t" << *End << "\n"); DebugLocEntry Loc(StartLabel, EndLabel, getDebugLocValue(Begin), TheCU); if (DebugLoc.empty() || !DebugLoc.back().Merge(Loc)) DebugLoc.push_back(std::move(Loc)); |