Fix a grammaro.

[oota-llvm.git] / lib / Transforms / Utils / LoopSimplify.cpp

diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp
index 924b744f027ba555553cd1a8e369979869797fc3..1ef3c32ae58f5c447ab0d57505c5b1be9f76f366 100644 (file)
--- a/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/lib/Transforms/Utils/LoopSimplify.cpp
@@ -41,6 +41,7 @@
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Constants.h"
 #include "llvm/Instructions.h"
+#include "llvm/IntrinsicInst.h"
 #include "llvm/Function.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/Type.h"
@@ -132,7 +133,7 @@ bool LoopSimplify::ProcessLoop(Loop *L, LPPassManager &LPM) {
   bool Changed = false;
 ReprocessLoop:
 
-  // Check to see that no blocks (other than the header) in this loop that has
+  // Check to see that no blocks (other than the header) in this loop have
   // predecessors that are not in the loop.  This is not valid for natural
   // loops, but can occur if the blocks are unreachable.  Since they are
   // unreachable we can just shamelessly delete those CFG edges!
@@ -290,6 +291,9 @@ ReprocessLoop:
       bool AllInvariant = true;
       for (BasicBlock::iterator I = ExitingBlock->begin(); &*I != BI; ) {
         Instruction *Inst = I++;
+        // Skip debug info intrinsics.
+        if (isa<DbgInfoIntrinsic>(Inst))
+          continue;
         if (Inst == CI)
           continue;
         if (!L->makeLoopInvariant(Inst, Changed,