[all-commits] [llvm/llvm-project] c1ab69: [ARM] Remove LLC tests from transform/hardware loo...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c1ab698dce8dd4e751e63142ebb333d5b90bb8dc
      https://github.com/llvm/llvm-project/commit/c1ab698dce8dd4e751e63142ebb333d5b90bb8dc
  Author: David Green <david.green at arm.com>
  Date:   2021-01-16 (Sat, 16 Jan 2021)

  Changed paths:
    M llvm/test/Transforms/HardwareLoops/ARM/structure.ll

  Log Message:
  -----------
  [ARM] Remove LLC tests from transform/hardware loop tests.

We now have a lot of llc tests for hardware loops in CodeGen, which test
a larger variety of loops and are easier to maintain. This removes the
llc from mixed llc/opt tests.


  Commit: 372eb2bbb6fb903ce76266e659dfefbaee67722b
      https://github.com/llvm/llvm-project/commit/372eb2bbb6fb903ce76266e659dfefbaee67722b
  Author: David Green <david.green at arm.com>
  Date:   2021-01-16 (Sat, 16 Jan 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.h
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/fast-fp-loops.ll
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/mve-float-loops.ll
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/sibling-loops.ll
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/varying-outer-2d-reduction.ll
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/vcmp-vpst-combination.ll
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/while-loops.ll
    M llvm/test/CodeGen/Thumb2/mve-float16regloops.ll
    M llvm/test/CodeGen/Thumb2/mve-float32regloops.ll
    M llvm/test/CodeGen/Thumb2/mve-gather-increment.ll
    M llvm/test/CodeGen/Thumb2/mve-gather-scatter-optimisation.ll
    M llvm/test/CodeGen/Thumb2/mve-gather-tailpred.ll
    M llvm/test/CodeGen/Thumb2/mve-satmul-loops.ll
    M llvm/test/CodeGen/Thumb2/mve-scatter-increment.ll
    M llvm/test/CodeGen/Thumb2/mve-vecreduce-loops.ll
    M llvm/test/CodeGen/Thumb2/mve-vldshuffle.ll

  Log Message:
  -----------
  [ARM] Add low overhead loops terminators to AnalyzeBranch

This treats low overhead loop branches the same as jump tables and
indirect branches in analyzeBranch - they cannot be analyzed but the
direct branches on the end of the block may be removed. This helps
remove the unnecessary branches earlier, which can help produce better
codegen (and change block layout in a number of cases).

Differential Revision: https://reviews.llvm.org/D94392


Compare: https://github.com/llvm/llvm-project/compare/416854d0f7cd...372eb2bbb6fb