tree 8d0ea55a27ee4550e2a5a8dbf2de0f27cfa23cfb
parent 1f25117d13daea4e1788154d4fa709f312fefe3d
author Max Kazantsev <max.kazantsev@azul.com> 1534905649 +0000
committer Max Kazantsev <max.kazantsev@azul.com> 1534905649 +0000

[GuardWidening] Ignore guards with trivial conditions

Guard widening should not spend efforts on dealing with guards with trivial true/false conditions.
Such guards can easily be eliminated by any further cleanup pass like instcombine. However we
should not unconditionally delete them because it may be profitable to widen other conditions
into such guards.

Differential Revision: https://reviews.llvm.org/D50247
Reviewed By: fedor.sergeev


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340381 91177308-0d34-0410-b5e6-96231b3b80d8