[PATCH] D122044: [AMDGPU] New gfx940 mfma instructions

Jay Foad via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Mar 21 08:03:03 PDT 2022


foad added inline comments.


================
Comment at: clang/include/clang/Basic/BuiltinsAMDGPU.def:308
 
+TARGET_BUILTIN(__builtin_amdgcn_mfma_i32_16x16x32_i8, "V4iWiWiV4iIiIiIi", "nc", "mai-insts")
+TARGET_BUILTIN(__builtin_amdgcn_mfma_i32_32x32x16_i8, "V16iWiWiV16iIiIiIi", "nc", "mai-insts")
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Why do the new ones have `_` before the `i8`/`xf32` suffix? None of the old ones have it. What does `xf32` mean?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122044/new/

https://reviews.llvm.org/D122044



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