[llvm-commits] [llvm] r158007 - /llvm/trunk/lib/Transforms/Utils/LoopUnroll.cpp

[Andrew Trick]

Author: atrick
Date: Tue Jun  5 12:51:05 2012
New Revision: 158007

URL: http://llvm.org/viewvc/llvm-project?rev=158007&view=rev
Log:
LoopUnroll: always check for NULL LoopPassManager

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

Modified: llvm/trunk/lib/Transforms/Utils/LoopUnroll.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/LoopUnroll.cpp?rev=158007&r1=158006&r2=158007&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/LoopUnroll.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/LoopUnroll.cpp Tue Jun  5 12:51:05 2012
@@ -95,9 +95,11 @@
   // Erase basic block from the function...
 
   // ScalarEvolution holds references to loop exit blocks.
-  if (ScalarEvolution *SE = LPM->getAnalysisIfAvailable<ScalarEvolution>()) {
-    if (Loop *L = LI->getLoopFor(BB))
-      SE->forgetLoop(L);
+  if (LPM) {
+    if (ScalarEvolution *SE = LPM->getAnalysisIfAvailable<ScalarEvolution>()) {
+      if (Loop *L = LI->getLoopFor(BB))
+        SE->forgetLoop(L);
+    }
   }
   LI->removeBlock(BB);
   BB->eraseFromParent();