[llvm] r360128 - Fix uninitialized variable warning. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Tue May  7 03:30:22 2019
New Revision: 360128

URL: http://llvm.org/viewvc/llvm-project?rev=360128&view=rev
Log:
Fix uninitialized variable warning. NFCI.

This also fixes a scan-build "array subscript is undefined" warning.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCISelDAGToDAG.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelDAGToDAG.cpp?rev=360128&r1=360127&r2=360128&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelDAGToDAG.cpp Tue May  7 03:30:22 2019
@@ -5316,7 +5316,7 @@ SDValue PPCDAGToDAGISel::combineToCMPB(S
     SDValue V = Queue.pop_back_val();
 
     for (const SDValue &O : V.getNode()->ops()) {
-      unsigned b;
+      unsigned b = 0;
       uint64_t M = 0, A = 0;
       SDValue OLHS, ORHS;
       if (O.getOpcode() == ISD::OR) {