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Revert "Make rehash(0) work with ubsan's unsigned-integer-overflow." 

Seems to have broken some tests since I first wrote this a while
back. Will reland after checking what went wrong with the tests.

This reverts commit 7023194c8d11a081fd01ed25308b3d60193c6a06.

llvm-svn: 322039
This commit is contained in:
Dan Albert 2018-01-08 22:57:12 +00:00
parent de91dff5d4
commit 553b09b515
1 changed files with 1 additions and 1 deletions
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2
libcxx/include/__hash_table
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@ -2136,7 +2136,7 @@ template <class _Tp, class _Hash, class _Equal, class _Alloc>
void
__hash_table<_Tp, _Hash, _Equal, _Alloc>::rehash(size_type __n)
{
if (__n < 2)
if (__n == 1)
__n = 2;
else if (__n & (__n - 1))
__n = __next_prime(__n);