[AArch64] Use SDValue bool operator. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243930 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index 99239c6fd0d23f93ad75d6c97a48751bc8a99684..28ad11fd15f79ec076b67db03ad7c01a9adcdcdc 100644 (file)
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -6240,8 +6240,7 @@ FailedModImm:
 
   // Empirical tests suggest this is rarely worth it for vectors of length <= 2.
   if (NumElts >= 4) {
-    SDValue shuffle = ReconstructShuffle(Op, DAG);
-    if (shuffle != SDValue())
+    if (SDValue shuffle = ReconstructShuffle(Op, DAG))
       return shuffle;
   }
 
@@ -7464,8 +7463,7 @@ static SDValue performIntToFpCombine(SDNode *N, SelectionDAG &DAG,
                                      const AArch64Subtarget *Subtarget) {
   // First try to optimize away the conversion when it's conditionally from
   // a constant. Vectors only.
-  SDValue Res = performVectorCompareAndMaskUnaryOpCombine(N, DAG);
-  if (Res != SDValue())
+  if (SDValue Res = performVectorCompareAndMaskUnaryOpCombine(N, DAG))
     return Res;
 
   EVT VT = N->getValueType(0);
@@ -8449,8 +8447,7 @@ static SDValue performSTORECombine(SDNode *N,
   // If we get a splat of a scalar convert this vector store to a store of
   // scalars. They will be merged into store pairs thereby removing two
   // instructions.
-  SDValue ReplacedSplat = replaceSplatVectorStore(DAG, S);
-  if (ReplacedSplat != SDValue())
+  if (SDValue ReplacedSplat = replaceSplatVectorStore(DAG, S))
     return ReplacedSplat;
 
   SDLoc DL(S);