[all-commits] [llvm/llvm-project] 5c64d8: [ARM] CSINC/CSINV patterns from CMOV

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5c64d8ef8cc0c0ed3e0f2ae693d99e7f70f20a84
      https://github.com/llvm/llvm-project/commit/5c64d8ef8cc0c0ed3e0f2ae693d99e7f70f20a84
  Author: David Green <david.green at arm.com>
  Date:   2021-11-27 (Sat, 27 Nov 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMInstrThumb2.td
    M llvm/test/CodeGen/Thumb2/active_lane_mask.ll
    M llvm/test/CodeGen/Thumb2/mve-fmas.ll
    M llvm/test/CodeGen/Thumb2/mve-fpclamptosat_vec.ll
    M llvm/test/CodeGen/Thumb2/mve-masked-ldst.ll
    M llvm/test/CodeGen/Thumb2/mve-masked-load.ll
    M llvm/test/CodeGen/Thumb2/mve-masked-store.ll
    M llvm/test/CodeGen/Thumb2/mve-minmax.ll
    M llvm/test/CodeGen/Thumb2/mve-pred-ext.ll
    M llvm/test/CodeGen/Thumb2/mve-satmul-loops.ll
    M llvm/test/CodeGen/Thumb2/mve-vcmp.ll
    M llvm/test/CodeGen/Thumb2/mve-vcmpf.ll
    M llvm/test/CodeGen/Thumb2/mve-vcmpfr.ll
    M llvm/test/CodeGen/Thumb2/mve-vcmpfz.ll
    M llvm/test/CodeGen/Thumb2/mve-vcmpr.ll
    M llvm/test/CodeGen/Thumb2/mve-vctp.ll
    M llvm/test/CodeGen/Thumb2/mve-vmaxv-vminv-scalar.ll
    M llvm/test/CodeGen/Thumb2/mve-vqdmulh.ll
    M llvm/test/CodeGen/Thumb2/mve-vqmovn.ll
    M llvm/test/CodeGen/Thumb2/mve-vqshrn.ll

  Log Message:
  -----------
  [ARM] CSINC/CSINV patterns from CMOV

We sometimes end up generating CMOV with constant operands that can be
simplified to CSINC or CSINV under Arm-8.1m. This adds some simple
patterns for them.

Differential Revision: https://reviews.llvm.org/D114349