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Author SHA1 Message Date
Nikita Popov 9fb46a452d [SCCP] Compute ranges for supported intrinsics 
For intrinsics supported by ConstantRange, compute the result range
based on the argument ranges. We do this independently of whether
some or all of the input ranges are full, as we can often still
constrain the result in some way.

Differential Revision: https://reviews.llvm.org/D87183
 2020-09-07 22:16:06 +02:00
Nikita Popov 39caf9e940 [SCCP] Add tests for intrinsic ranges (NFC) 2020-09-05 10:28:13 +02:00