[PATCH] D59207: [ARM] Remove duplicates in ParallelDSP

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: SjoerdMeijer, dmgreen, efriedma.
Herald added subscribers: jdoerfert, kristof.beyls, javed.absar.

While scanning a block for sequential loads, also check for duplicate instructions and remove them if possible. To do this we have to ensure that for any memory reads, there aren't any writes between the two duplicates and also that memory operations are simple. I've also moved all the tests into a ParallelDSP directory.


https://reviews.llvm.org/D59207

Files:
  lib/Target/ARM/ARMParallelDSP.cpp
  test/CodeGen/ARM/ParallelDSP/remove-duplicate-loads.ll
  test/CodeGen/ARM/ParallelDSP/smlad0.ll
  test/CodeGen/ARM/ParallelDSP/smlad1.ll
  test/CodeGen/ARM/ParallelDSP/smlad10.ll
  test/CodeGen/ARM/ParallelDSP/smlad11.ll
  test/CodeGen/ARM/ParallelDSP/smlad12.ll
  test/CodeGen/ARM/ParallelDSP/smlad2.ll
  test/CodeGen/ARM/ParallelDSP/smlad3.ll
  test/CodeGen/ARM/ParallelDSP/smlad4.ll
  test/CodeGen/ARM/ParallelDSP/smlad5.ll
  test/CodeGen/ARM/ParallelDSP/smlad6.ll
  test/CodeGen/ARM/ParallelDSP/smlad7.ll
  test/CodeGen/ARM/ParallelDSP/smlad8.ll
  test/CodeGen/ARM/ParallelDSP/smlad9.ll
  test/CodeGen/ARM/ParallelDSP/smladx-1.ll
  test/CodeGen/ARM/ParallelDSP/smlald0.ll
  test/CodeGen/ARM/ParallelDSP/smlald1.ll
  test/CodeGen/ARM/ParallelDSP/smlald2.ll
  test/CodeGen/ARM/ParallelDSP/smlaldx-1.ll
  test/CodeGen/ARM/ParallelDSP/smlaldx-2.ll
  test/CodeGen/ARM/debug-info-branch-folding.ll
  test/CodeGen/ARM/smlad0.ll
  test/CodeGen/ARM/smlad1.ll
  test/CodeGen/ARM/smlad10.ll
  test/CodeGen/ARM/smlad11.ll
  test/CodeGen/ARM/smlad12.ll
  test/CodeGen/ARM/smlad2.ll
  test/CodeGen/ARM/smlad3.ll
  test/CodeGen/ARM/smlad4.ll
  test/CodeGen/ARM/smlad5.ll
  test/CodeGen/ARM/smlad6.ll
  test/CodeGen/ARM/smlad7.ll
  test/CodeGen/ARM/smlad8.ll
  test/CodeGen/ARM/smlad9.ll
  test/CodeGen/ARM/smladx-1.ll
  test/CodeGen/ARM/smlald0.ll
  test/CodeGen/ARM/smlald1.ll
  test/CodeGen/ARM/smlald2.ll
  test/CodeGen/ARM/smlaldx-1.ll
  test/CodeGen/ARM/smlaldx-2.ll

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