[all-commits] [llvm/llvm-project] 6cb858: [AMDGPU] Fold sudot intrinsics with a zero multipl...

[Harrison Hao via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6cb8584a22334623c901e9bb9b2b80f750bd47e5
      https://github.com/llvm/llvm-project/commit/6cb8584a22334623c901e9bb9b2b80f750bd47e5
  Author: Harrison Hao <57025411+harrisonGPU at users.noreply.github.com>
  Date:   2026-09-30 (Wed, 30 Sep 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
    M llvm/test/Transforms/InstCombine/AMDGPU/llvm.amdgcn.sudot.ll

  Log Message:
  -----------
  [AMDGPU] Fold sudot intrinsics with a zero multiplicand (#226479)

Replace sudot4 and sudot8 with their accumulator when either
multiplicand is zero.

For example:
```
  sudot4(sign0, x, sign1, 0, acc, clamp)
  ->
  acc
```



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