Initialize LiveOutInfo's APInt members to zero, as APInt's

default constructor produces an uninitialized APInt.
This fixes PR3896.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67879 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
index 8ab3487a9582e151a0bde03c3599249af4a9299a..a9c3d6a523b13359519eb0e1d1202d0c49512df8 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
@@ -135,7 +135,7 @@ public:
   struct LiveOutInfo {
     unsigned NumSignBits;
     APInt KnownOne, KnownZero;
-    LiveOutInfo() : NumSignBits(0) {}
+    LiveOutInfo() : NumSignBits(0), KnownOne(1, 0), KnownZero(1, 0) {}
   };
   
   /// LiveOutRegInfo - Information about live out vregs, indexed by their