Ignore debug intrinsics in yet more places.

llvm-svn: 99580

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index b7622ab4d6d..625a75d6cca 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -2827,6 +2827,7 @@ Value *LSRInstance::Expand(const LSRFixup &LF,
       IP = Tentative;
   }
   while (isa<PHINode>(IP)) ++IP;
+  while (isa<DbgInfoIntrinsic>(IP)) ++IP;
 
   // Inform the Rewriter if we have a post-increment use, so that it can
   // perform an advantageous expansion.
@@ -2864,8 +2865,10 @@ Value *LSRInstance::Expand(const LSRFixup &LF,
         // so that it is dominated by its operand. If the original insert point
         // was already dominated by the increment, keep it, because there may
         // be loop-variant operands that need to be respected also.
-        if (L->contains(LF.UserInst) && !DT.dominates(IVIncInsertPos, IP))
+        if (L->contains(LF.UserInst) && !DT.dominates(IVIncInsertPos, IP)) {
           IP = IVIncInsertPos;
+          while (isa<DbgInfoIntrinsic>(IP)) ++IP;
+        }
         break;
       }
       Start = AR->getStart();