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Author SHA1 Message Date
Arthur Eubanks e30fbbe9a5 [JumpThreading][NewPM] Skip when target has divergent CF 
Matches the legacy pass.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D94028
 2021-01-04 16:08:08 -08:00
alex-t 35ec3ff76d Disable Jump Threading for the targets with divergent control flow 
Details: Jump Threading does not make sense for the targets with divergent CF
         since they do not use branch prediction for speculative execution.
         Also in the high level IR there is no enough information to conclude that the branch is divergent or uniform.
         This may cause errors in further CF lowering.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D93302
 2020-12-17 02:40:54 +03:00