[llvm] r281134 - [LTO] Handle null GV in Symbol object

[Teresa Johnson via llvm-commits]

Author: tejohnson
Date: Sat Sep 10 01:15:26 2016
New Revision: 281134

URL: http://llvm.org/viewvc/llvm-project?rev=281134&view=rev
Log:
[LTO] Handle null GV in Symbol object

Similar to other Symbol methods, have Symbol::getComdat handle
a null GV gracefully.

Fixes PR30326.

Modified:
    llvm/trunk/include/llvm/LTO/LTO.h

Modified: llvm/trunk/include/llvm/LTO/LTO.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/LTO/LTO.h?rev=281134&r1=281133&r2=281134&view=diff
==============================================================================
--- llvm/trunk/include/llvm/LTO/LTO.h (original)
+++ llvm/trunk/include/llvm/LTO/LTO.h Sat Sep 10 01:15:26 2016
@@ -165,6 +165,8 @@ public:
       return GV && llvm::canBeOmittedFromSymbolTable(GV);
     }
     Expected<const Comdat *> getComdat() const {
+      if (!GV)
+        return nullptr;
       const GlobalObject *GO;
       if (auto *GA = dyn_cast<GlobalAlias>(GV)) {
         GO = GA->getBaseObject();