[PATCH] D74390: [ARM] VMLAVA reduction patterns

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: SjoerdMeijer, samparker, simon_tatham, ostannard.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: LLVM.

Similar to VADDV and VADDLV that have been added recently, this adds lowering and patterns for VMLAV, VMLAVA, VMLALV and VMLALVA. They perform the same roles as the add's, just folding a mul into the same instruction (and so taking two inputs). As such, they need to be lowered in the same way as the types are often not legal.


https://reviews.llvm.org/D74390

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/lib/Target/ARM/ARMISelLowering.h
  llvm/lib/Target/ARM/ARMInstrMVE.td
  llvm/test/CodeGen/Thumb2/mve-vecreduce-mla.ll

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