[all-commits] [llvm/llvm-project] 112f35: [AArch64] Add A+B+1 and A-B-1 macro fusion for Amp...

[Philipp Tomsich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 112f352bc0ad2f4b17569cc8ea339dc3940451cd
      https://github.com/llvm/llvm-project/commit/112f352bc0ad2f4b17569cc8ea339dc3940451cd
  Author: Philipp Tomsich <philipp.tomsich at vrull.eu>
  Date:   2023-01-29 (Sun, 29 Jan 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64.td
    M llvm/lib/Target/AArch64/AArch64MacroFusion.cpp
    A llvm/test/CodeGen/AArch64/macro-fusion-addsub-2reg-const1.mir

  Log Message:
  -----------
  [AArch64] Add A+B+1 and A-B-1 macro fusion for Ampere1A

The Ampere1A core supports a new fusion pattern that optimises the
case of A+B+1 and A-B-1.  Add support.

Depends on D142396

Differential Revision: https://reviews.llvm.org/D142502