work around an MSVC2010 bug, PR6504

llvm-svn: 98653
2010-03-16 19:07:05 +00:00 · 2010-03-16 19:07:05 +00:00 · 13439783fb
parent e0fa09cb05
commit 13439783fb
1 changed files with 2 additions and 1 deletions
--- a/llvm/include/llvm/ADT/BitVector.h
+++ b/llvm/include/llvm/ADT/BitVector.h
@ -329,6 +329,7 @@ public:
    Size = RHS.size();
    unsigned RHSWords = NumBitWords(Size);
    if (Size <= Capacity * BITWORD_SIZE) {
+      if (Size)
        std::copy(RHS.Bits, &RHS.Bits[RHSWords], Bits);
      clear_unused_bits();
      return *this;