[all-commits] [llvm/llvm-project] f32eba: [NVPTX] Improve folding to mad with immediate 1 (#...

[Alex MacLean via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f32ebabc27655a1bd26ccdede1610d8d1a05315f
      https://github.com/llvm/llvm-project/commit/f32ebabc27655a1bd26ccdede1610d8d1a05315f
  Author: Alex MacLean <amaclean at nvidia.com>
  Date:   2024-05-29 (Wed, 29 May 2024)

  Changed paths:
    M llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
    A llvm/test/CodeGen/NVPTX/combine-mad.ll

  Log Message:
  -----------
  [NVPTX] Improve folding to mad with immediate 1 (#93628)

Extend NVPTX DAG combining logic to distribute a mul instruction across
an add of 1 into a mad where possible. In addition, add support for
transposing a mul through a select with an option of 1, if that would
allow further mul folding.



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