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3 Commits

Author SHA1 Message Date
Nikita Popov 9ebeac6788 [ConstantRange][CVP] Make use of abs poison flag 
Pass the abs poison flag to the underlying ConstantRange
implementation, allowing CVP to simplify based on it.

Importantly, this recognizes that abs with poison flag is actually
non-negative...
 2020-07-30 23:06:10 +02:00
Nikita Popov d8a98a9c35 [ConstantRange][CVP] Compute min/max/abs intrinsic ranges 
Wire up ConstantRange::intrinsic() to the existing primitives for
min, max and abs.

The poison flag on abs is not yet taken into account.
 2020-07-30 22:21:34 +02:00
Nikita Popov 95d1e668ed [CVP] Add tests for min/max/abs intrinsic comparisons (NFC) 2020-07-30 22:17:03 +02:00