commit a6fb910fad700636a2aa5770b6ed7cf18a79c55c
author Andrew Trick <atrick@apple.com> Tue Jun 05 17:51:05 2012 +0000
committer Andrew Trick <atrick@apple.com> Tue Jun 05 17:51:05 2012 +0000
tree 734bd6dac87e4d73a10a334fda57067f93f3cbea
parent 480bd8618221a4a8be6093a622ed41756f9133b4

LoopUnroll: always check for NULL LoopPassManager

llvm-svn: 158007

llvm/lib/Transforms/Utils/LoopUnroll.cpp

diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp
index 0780b13..2023750 100644
--- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp
+++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp
@@ -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();