From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Mon, 6 May 2019 11:52:16 +0000 (+0000)
Subject: X86DAGToDAGISel::tryVPTESTM - fix uninitialized variable warning. NFCI.
X-Git-Tag: android-x86-9.0-r1~3807
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=004df2ab002927dfd51375c7d3c3139c182d2151;p=android-x86%2Fexternal-llvm.git

X86DAGToDAGISel::tryVPTESTM - fix uninitialized variable warning. NFCI.

findBroadcastedOp should always initialize the value if it returns true but static-analyzer isn't great at recognising this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360037 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 450872d8619..230bf639013 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -3730,7 +3730,7 @@ bool X86DAGToDAGISel::tryVPTESTM(SDNode *Root, SDValue Setcc,
   bool FoldedBCast = false;
   if (!FoldedLoad && CanFoldLoads &&
       (CmpSVT == MVT::i32 || CmpSVT == MVT::i64)) {
-    SDNode *ParentNode;
+    SDNode *ParentNode = nullptr;
     if ((Load = findBroadcastedOp(Src1, CmpSVT, ParentNode))) {
       FoldedBCast = tryFoldLoad(Root, ParentNode, Load, Tmp0,
                                 Tmp1, Tmp2, Tmp3, Tmp4);