[LoopIdiomRecognize] Merge two if conditions into one. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283579 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/LoopIdiomRecognize.cpp b/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
index 5d156b84b12339b59510b6df3b2d3cdc58645441..fd167db11789f8c2258465679f33924f56beec86 100644 (file)
--- a/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
+++ b/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
@@ -1181,9 +1181,7 @@ bool LoopIdiomRecognize::recognizePopcount() {
 
   // It should have a preheader containing nothing but an unconditional branch.
   BasicBlock *PH = CurLoop->getLoopPreheader();
-  if (!PH)
-    return false;
-  if (&PH->front() != PH->getTerminator())
+  if (!PH || &PH->front() != PH->getTerminator())
     return false;
   auto *EntryBI = dyn_cast<BranchInst>(PH->getTerminator());
   if (!EntryBI || EntryBI->isConditional())