[PATCH] D78386: [ARM] Sink splats to fma intrinsics

[Dave Green via Phabricator via llvm-commits]

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

Similar to fmul/fadd, we can sink a splat into a loop containing a fma in order to use more register instruction variants. For that I had to adjust the sinking code a little to handle more than 2 arguments.


https://reviews.llvm.org/D78386

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/test/CodeGen/Thumb2/mve-fma-loops.ll
  llvm/test/CodeGen/Thumb2/mve-vldst4.ll

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