commit 2dcbe74dfd0fd246acda294bd7f7d5df859bb442
author Simon Pilgrim <llvm-dev@redking.me.uk> Sat Mar 07 16:34:55 2015 +0000
committer Simon Pilgrim <llvm-dev@redking.me.uk> Sat Mar 07 16:34:55 2015 +0000
tree 177d68895b2f0f7212c2a7c38b8ff489edd70bb8
parent 51ae7e86221ac2d25276c20d6dbdde82eae1e5da

Use SDValue bool check to tidyup some possible combines. NFC.

llvm-svn: 231569

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 444ea23..7dc79a4 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -11328,12 +11328,10 @@
   if (ISD::allOperandsUndef(N))
     return DAG.getUNDEF(VT);
 
-  SDValue V = reduceBuildVecExtToExtBuildVec(N);
-  if (V.getNode())
+  if (SDValue V = reduceBuildVecExtToExtBuildVec(N))
     return V;
 
-  V = reduceBuildVecConvertToConvertBuildVec(N);
-  if (V.getNode())
+  if (SDValue V = reduceBuildVecConvertToConvertBuildVec(N))
     return V;
 
   // Check to see if this is a BUILD_VECTOR of a bunch of EXTRACT_VECTOR_ELT
@@ -12305,8 +12303,9 @@
 
   SDValue LHS = N->getOperand(0);
   SDValue RHS = N->getOperand(1);
-  SDValue Shuffle = XformToShuffleWithZero(N);
-  if (Shuffle.getNode()) return Shuffle;
+
+  if (SDValue Shuffle = XformToShuffleWithZero(N))
+    return Shuffle;
 
   // If the LHS and RHS are BUILD_VECTOR nodes, see if we can constant fold
   // this operation.