Evidently my earlier fix did not go far enough. When resizing a zero-sized

BitVector, make sure to set or clear ALL of the bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38481 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ADT/BitVector.h b/include/llvm/ADT/BitVector.h
index 5247756618e9ae9f0d89f5141a344dd83a1b1304..243a8102cf89e4de8b8f23dd4e15bff2cd61640f 100644 (file)
--- a/include/llvm/ADT/BitVector.h
+++ b/include/llvm/ADT/BitVector.h
@@ -188,7 +188,8 @@ public:
     
     // If we previously had no size, initialize the low word
     if (Size == 0)
-      Bits[0] = t;
+      for (unsigned i = 0; i < Capacity; ++i)
+        Bits[i] = 0 - (unsigned)t;
     
     Size = N;
     clear_unused_bits();