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Commit 2dd53352 authored by Marshall Clow's avatar Marshall Clow
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Do the math in uniform_int_distribution::operator() as unsigned to prevent UB... 

Do the math in uniform_int_distribution::operator() as unsigned to prevent UB when overflowing. Also add a UBSAN notification that we're ffine with unsigned overflow. This fixes PR#32617. Thanks to Vincent & Christoph for their help with this issue.

llvm-svn: 343996
parent ff9f0258
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