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Fix integer undefined behavior due to signed left shift overflow in LLVM.

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Reviewed offline by chandlerc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162623 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Smith
2012-08-24 23:29:28 +00:00
parent cac59d8ae8
commit 1144af3c9b
19 changed files with 59 additions and 56 deletions
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2
include/llvm/ADT/SparseBitVector.h
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@@ -158,7 +158,7 @@ public:
&& "Word Position outside of element");
// Mask off previous bits.
Copy &= ~0L << BitPos;
Copy &= ~0UL << BitPos;
if (Copy != 0) {
if (sizeof(BitWord) == 4)