[all-commits] [llvm/llvm-project] 52e7ca: [LLVM][NVPTX] Add support for ldmatrix extensions ...

[Pradeep Kumar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 52e7ca9279b4cbe30cacca67548347ef5f96b120
      https://github.com/llvm/llvm-project/commit/52e7ca9279b4cbe30cacca67548347ef5f96b120
  Author: Pradeep Kumar <pradeepku at nvidia.com>
  Date:   2025-03-17 (Mon, 17 Mar 2025)

  Changed paths:
    M llvm/include/llvm/IR/IntrinsicsNVVM.td
    M llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
    M llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
    A llvm/test/CodeGen/NVPTX/wmma-ptx86-sm100a.py
    A llvm/test/CodeGen/NVPTX/wmma-ptx86-sm101a.py
    A llvm/test/CodeGen/NVPTX/wmma-ptx86-sm120a.py
    M llvm/test/CodeGen/NVPTX/wmma.py

  Log Message:
  -----------
  [LLVM][NVPTX] Add support for ldmatrix extensions introduced in PTX 8.6 (#124899)

This commit adds support for the following ldmatrix extensions
introduced in PTX 8.6
- Support for m16n16 with b8 type with mandatory transpose
- Support for m16n16 with m8n16 with source and desitination formats

The above extensions are only supported on sm_100a, sm_101a, sm_120a

Please refer the PTX ISA for more information:
https://docs.nvidia.com/cuda/parallel-thread-execution/#warp-level-matrix-instructions-ldmatrix



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