[DebugInfo] DILocation variable declaration should be const; NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291787 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index 54390e77bb1f79fc6c2236bd983d32120406bd36..01bfd123014979f551dbe8ebfcfa5c4de4271fe2 100644 (file)
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1577,7 +1577,7 @@ static bool sinkLastInstruction(ArrayRef<BasicBlock*> Blocks) {
   // The debug location for the "common" instruction is the merged locations of
   // all the commoned instructions.  We start with the original location of the
   // "common" instruction and iteratively merge each location in the loop below.
-  DILocation *Loc = I0->getDebugLoc();
+  const DILocation *Loc = I0->getDebugLoc();
 
   // Update metadata and IR flags, and merge debug locations.
   for (auto *I : Insts)