[all-commits] [llvm/llvm-project] 738954: Reapply "[AMDGPU] Always lower s/udiv64 by constan...

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7389545d0d7002c5b384ba70d5e38499e9899069
      https://github.com/llvm/llvm-project/commit/7389545d0d7002c5b384ba70d5e38499e9899069
  Author: Pierre van Houtryve <pierre.vanhoutryve at amd.com>
  Date:   2024-08-12 (Mon, 12 Aug 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-idiv.ll
    A llvm/test/CodeGen/AMDGPU/div-rem-by-constant-64.ll
    M llvm/test/CodeGen/AMDGPU/udiv.ll
    M llvm/test/CodeGen/AMDGPU/udiv64.ll
    M llvm/test/CodeGen/AMDGPU/urem64.ll
    A llvm/test/CodeGen/ARM/div-by-constant-to-mul-crash.ll

  Log Message:
  -----------
  Reapply "[AMDGPU] Always lower s/udiv64 by constant to MUL" (#101942)

Reland #100723, fixing the ARM issue at the cost of a small loss of optimization in `test/CodeGen/AMDGPU/fshr.ll`

Solves #100383



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