[AArch64] Simplify isSingExtended()/isZeroExtended(). NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299102 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index b16e8d33dc38bf9524dd052d93acf8b0b8aba2e6..f37246ec08fa22d24e5ff7d16e34f027e01036a5 100644 (file)
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -2231,19 +2231,13 @@ static SDValue skipExtensionForVectorMULL(SDNode *N, SelectionDAG &DAG) {
 }
 
 static bool isSignExtended(SDNode *N, SelectionDAG &DAG) {
-  if (N->getOpcode() == ISD::SIGN_EXTEND)
-    return true;
-  if (isExtendedBUILD_VECTOR(N, DAG, true))
-    return true;
-  return false;
+  return N->getOpcode() == ISD::SIGN_EXTEND ||
+         isExtendedBUILD_VECTOR(N, DAG, true);
 }
 
 static bool isZeroExtended(SDNode *N, SelectionDAG &DAG) {
-  if (N->getOpcode() == ISD::ZERO_EXTEND)
-    return true;
-  if (isExtendedBUILD_VECTOR(N, DAG, false))
-    return true;
-  return false;
+  return N->getOpcode() == ISD::ZERO_EXTEND ||
+         isExtendedBUILD_VECTOR(N, DAG, false);
 }
 
 static bool isAddSubSExt(SDNode *N, SelectionDAG &DAG) {