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fuchsia / third_party / llvm-project / refs/heads/upstream/users/arsenm/amdgpu/handle-untied-agpr-mfma-rewrite
commitb82fc9526af6f09cdfab8c4cbafa52a82f706e24[log] [tgz]
authorMatt Arsenault <Matthew.Arsenault@amd.com>Fri Jul 11 12:57:13 2025 +0900
committerMatt Arsenault <arsenm2@gmail.com>Sun Jul 27 08:57:23 2025 +0900
tree051f2d34ef738d19ae53c437c2f24d4dbf4436fb
parent4c13a1eeaabed49fbbf0de7cf24677cbe8e09a00 [diff]
AMDGPU: Handle rewriting non-tied MFMA to AGPR form

If src2 and dst aren't the same register, to fold a copy
to AGPR into the instruction we also need to reassign src2
to an available AGPR. All the other uses of src2 also need
to be compatible with the AGPR replacement in order to avoid
inserting other copies somewhere else.

Perform this transform, after verifying all other uses are
compatible with AGPR, and have an available AGPR available at
all points (which effectively means rewriting a full chain of
mfmas and load/store at once).
2 files changed
tree: 051f2d34ef738d19ae53c437c2f24d4dbf4436fb
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-format-ignore
  29. .clang-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. pyproject.toml
  38. README.md
  39. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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