[PATCH] D80161: [CodeGen] Add support for multiple memory operands in MachineInstr::mayAlias

Eli Friedman via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue May 19 10:56:58 PDT 2020


efriedma added a comment.

On ARM specifically, operations don't usually more than one memoperand, with the exception of load store paired/multiple.  So yes, I can see it would be hard to trigger outside of scheduling.

Maybe we could add some debug output to the scheduler showing when it does/does not add a dependency, and check that.  So it would be checking scheduling, but not the final schedule.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80161/new/

https://reviews.llvm.org/D80161





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