[PATCH] D63476: [ARM] DLS/LE low-overhead loop code generation

[Sam Parker via Phabricator via llvm-commits]

samparker updated this revision to Diff 206171.
samparker added a comment.

- Renamed all the things to low-overhead loops.
- Used the arm.space intrinsic and added another test for the edge case.
- Reversed the order of the search for LoopEnd and LoopDec, breaking early if possible.
- Switched the order of constant island and low-overhead loops.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63476/new/

https://reviews.llvm.org/D63476

Files:
  lib/Target/ARM/ARM.h
  lib/Target/ARM/ARMISelDAGToDAG.cpp
  lib/Target/ARM/ARMInstrThumb2.td
  lib/Target/ARM/ARMLowOverheadLoops.cpp
  lib/Target/ARM/ARMTargetMachine.cpp
  lib/Target/ARM/CMakeLists.txt
  test/CodeGen/ARM/O3-pipeline.ll
  test/Transforms/HardwareLoops/ARM/calls.ll
  test/Transforms/HardwareLoops/ARM/cond-mov.mir
  test/Transforms/HardwareLoops/ARM/massive.mir
  test/Transforms/HardwareLoops/ARM/revert-after-call.mir
  test/Transforms/HardwareLoops/ARM/revert-after-spill.mir
  test/Transforms/HardwareLoops/ARM/simple-do.ll
  test/Transforms/HardwareLoops/ARM/size-limit.mir
  test/Transforms/HardwareLoops/ARM/structure.ll
  test/Transforms/HardwareLoops/ARM/switch.mir

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