From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 15 Mar 2015 17:21:35 +0000 (+0000)
Subject: Use SDValue bool check to tidyup some possible combines. NFC.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ec009464f2f78e5e3e88f72e7b949bfcca1a79d4;p=oota-llvm.git

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232325 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 167685ac2a8..2f0b9dbb741 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -16162,21 +16162,19 @@ static SDValue LowerShift(SDValue Op, const X86Subtarget* Subtarget,
   SDLoc dl(Op);
   SDValue R = Op.getOperand(0);
   SDValue Amt = Op.getOperand(1);
-  SDValue V;
 
   assert(VT.isVector() && "Custom lowering only for vector shifts!");
   assert(Subtarget->hasSSE2() && "Only custom lower when we have SSE2!");
 
-  V = LowerScalarImmediateShift(Op, DAG, Subtarget);
-  if (V.getNode())
+  if (SDValue V = LowerScalarImmediateShift(Op, DAG, Subtarget))
     return V;
 
-  V = LowerScalarVariableShift(Op, DAG, Subtarget);
-  if (V.getNode())
+  if (SDValue V = LowerScalarVariableShift(Op, DAG, Subtarget))
       return V;
 
   if (Subtarget->hasAVX512() && (VT == MVT::v16i32 || VT == MVT::v8i64))
     return Op;
+
   // AVX2 has VPSLLV/VPSRAV/VPSRLV.
   if (Subtarget->hasInt256()) {
     if (Op.getOpcode() == ISD::SRL &&