[PATCH] D82358: [ARM] Mark more integer instructions as not having side effects.

Tue Jun 23 01:32:53 PDT 2020

dmgreen created this revision.
dmgreen added reviewers: efriedma, samparker, SjoerdMeijer, ostannard.
Herald added subscribers: danielkiss, gbedwell, hiraditya, kristof.beyls.
Herald added a reviewer: andreadb.
Herald added a project: LLVM.

LDRD and STRD, along with UBFX and SBFX are selected from DAGToDAG transforms, so do not have patterns. They don't get marked as having side effects so cannot be scheduled as efficiently as you would like.

https://reviews.llvm.org/D82358

Files:
  llvm/lib/Target/ARM/ARMInstrThumb2.td
  llvm/test/CodeGen/Thumb2/mve-masked-ldst.ll
  llvm/test/tools/llvm-mca/ARM/m4-int.s

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