commit 265ca5dff5ad21add569fadab435f64423861793
author Devang Patel <dpatel@apple.com> Mon Nov 03 19:38:07 2008 +0000
committer Devang Patel <dpatel@apple.com> Mon Nov 03 19:38:07 2008 +0000
tree fee168b1e639ef1de968326450fa30616834529d
parent 06a1242207f3777419d9c87820b42e5768d636fc

Ignore conditions that are outside the loop.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58631 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnswitch.cpp

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 65034f5..31e8752 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -167,8 +167,10 @@
 
   // TODO: Handle: br (VARIANT|INVARIANT).
   // TODO: Hoist simple expressions out of loops.
-  if (L->isLoopInvariant(Cond)) return Cond;
-  
+  if (Instruction *I = dyn_cast<Instruction>(Cond))
+    if (!L->contains(I->getParent()))
+      return 0;
+
   if (BinaryOperator *BO = dyn_cast<BinaryOperator>(Cond))
     if (BO->getOpcode() == Instruction::And ||
         BO->getOpcode() == Instruction::Or) {