[LoopIdiomRecognize] Use auto + range-based loop. NFC intended.

llvm-svn: 237284

1 files changed, 3 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
index b57b7c276d7..9bc0153bf51 100644
--- a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
@@ -639,13 +639,12 @@ bool LoopIdiomRecognize::runOnCountableLoop() {
 
   bool MadeChange = false;
   // Scan all the blocks in the loop that are not in subloops.
-  for (Loop::block_iterator BI = CurLoop->block_begin(),
-         E = CurLoop->block_end(); BI != E; ++BI) {
+  for (auto BB : CurLoop->getBlocks()) {
     // Ignore blocks in subloops.
-    if (LI.getLoopFor(*BI) != CurLoop)
+    if (LI.getLoopFor(BB) != CurLoop)
       continue;
 
-    MadeChange |= runOnLoopBlock(*BI, BECount, ExitBlocks);
+    MadeChange |= runOnLoopBlock(BB, BECount, ExitBlocks);
   }
   return MadeChange;
 }