[PATCH] D59626: [AMDGPU] Add MachineDCE pass after RenameIndependentSubregs
Stanislav Mekhanoshin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 8 11:32:37 PDT 2019
rampitec added a comment.
In D59626#1458686 <https://reviews.llvm.org/D59626#1458686>, @bjope wrote:
>
Actually shrinkToUses does not work with phys. That should be possible to avoid removing dead phys uses if that phys is allocatable (otherwise liveness is not calculated for it).
I also do not see how to reproduce disjoint intervals.
And yes, changing it back to PreservesCFG() should effectively switch this off.
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https://reviews.llvm.org/D59626/new/
https://reviews.llvm.org/D59626
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