[llvm] r372728 - [SimplifyCFG] FoldTwoEntryPHINode - silence static analyzer null dereference warning. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Tue Sep 24 04:17:20 2019
New Revision: 372728

URL: http://llvm.org/viewvc/llvm-project?rev=372728&view=rev
Log:
[SimplifyCFG] FoldTwoEntryPHINode - silence static analyzer null dereference warning. NFCI.

Assert that we've found the DomBlock.

Modified:
    llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp

Modified: llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp?rev=372728&r1=372727&r2=372728&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp Tue Sep 24 04:17:20 2019
@@ -2400,6 +2400,7 @@ static bool FoldTwoEntryPHINode(PHINode
         return false;
       }
   }
+  assert(DomBlock && "Failed to find root DomBlock");
 
   LLVM_DEBUG(dbgs() << "FOUND IF CONDITION!  " << *IfCond
                     << "  T: " << IfTrue->getName()