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archived-llvm/include/llvm/Analysis
Nikita Popov 49cc96a66c [ValueTracking][ConstantRange] Distinguish low/high always overflow
In order to fold an always overflowing signed saturating add/sub,
we need to know in which direction the always overflow occurs.
This patch splits up AlwaysOverflows into AlwaysOverflowsLow and
AlwaysOverflowsHigh to pass through this information (but it is
not used yet).

Differential Revision: https://reviews.llvm.org/D62463

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@361858 91177308-0d34-0410-b5e6-96231b3b80d8
2019-05-28 18:08:31 +00:00
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