[PATCH] D99662: [AArch64] Add Machine InstCombiner patterns for FMUL indexed variant

[Andrew Savonichev via Phabricator via llvm-commits]

asavonic created this revision.
asavonic added reviewers: Gerolf, SjoerdMeijer, sebpop.
Herald added subscribers: danielkiss, arphaman, hiraditya, kristof.beyls.
asavonic requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This patch adds DUP+FMUL => FMUL_indexed pattern to InstCombiner.
FMUL_indexed is normally selected during instruction selection, but it
does not work in cases when VDUP and VMUL are in different basic
blocks.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D99662

Files:
  llvm/include/llvm/CodeGen/MachineCombinerPattern.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
  llvm/test/CodeGen/AArch64/arm64-fma-combines.ll

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