[X86] Use hasOneUse instead of isOnlyUserOf. NFCI

isOnlyUserOf is a little heavier because it allows the node to be used multiple times by the other node. In this case we are looking at a truncate which only has one operand so we know it can only use it once. Thus hasOneUse is better.

llvm-svn: 340059

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 287f59cc790..cfb019e62b0 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -36780,7 +36780,7 @@ static SDValue combineTruncatedArithmetic(SDNode *N, SelectionDAG &DAG,
   };
 
   // Don't combine if the operation has other uses.
-  if (!N->isOnlyUserOf(Src.getNode()))
+  if (!Src.hasOneUse())
     return SDValue();
 
   // Only support vector truncation for now.