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When resizing a BitVector with size 0, be sure to clear the low word before using it.
author
Owen Anderson
<resistor@mac.com>
Mon, 9 Jul 2007 23:39:39 +0000
(23:39 +0000)
committer
Owen Anderson
<resistor@mac.com>
Mon, 9 Jul 2007 23:39:39 +0000
(23:39 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38476
91177308
-0d34-0410-b5e6-
96231b3b80d8
include/llvm/ADT/BitVector.h
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diff --git
a/include/llvm/ADT/BitVector.h
b/include/llvm/ADT/BitVector.h
index 6418f7f66b4b1c1e2da1a8b19d2153e46cd451a7..5247756618e9ae9f0d89f5141a344dd83a1b1304 100644
(file)
--- a/
include/llvm/ADT/BitVector.h
+++ b/
include/llvm/ADT/BitVector.h
@@
-185,6
+185,11
@@
public:
grow(N);
init_words(&Bits[OldCapacity], (Capacity-OldCapacity), t);
}
+
+ // If we previously had no size, initialize the low word
+ if (Size == 0)
+ Bits[0] = t;
+
Size = N;
clear_unused_bits();
}