[all-commits] [llvm/llvm-project] 87c565: [ARM] Sink splats to fma intrinsics

[David Green via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 87c56594dd98bc4fe6932713325f410a1b68e962
      https://github.com/llvm/llvm-project/commit/87c56594dd98bc4fe6932713325f410a1b68e962
  Author: David Green <david.green at arm.com>
  Date:   2020-05-13 (Wed, 13 May 2020)

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

  Log Message:
  -----------
  [ARM] Sink splats to fma intrinsics

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 there are
also adjustments to the sinking code to handle more than 2 arguments.

Differential Revision: https://reviews.llvm.org/D78386