Fix some warnings in an optimized build


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23080 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 102b4b3..3187e4a 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -1414,7 +1414,7 @@
     Tmp2 = SelectExpr(N.getOperand(1));
     
     if (N.getOpcode() == ISD::ADD_PARTS) {
-      bool ME, ZE;
+      bool ME = false, ZE = false;
       if (isIntImmediate(N.getOperand(3), Tmp3)) {
         ME = (signed)Tmp3 == -1;
         ZE = Tmp3 == 0;