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llvm / llvm-project / a04580f71b98bdb12100da66c9975e9a1001b4d6
commita04580f71b98bdb12100da66c9975e9a1001b4d6[log] [tgz]
authorShoreshen <372660931@qq.com>Fri Apr 18 10:56:20 2025 +0800
committerGitHub <noreply@github.com>Fri Apr 18 10:56:20 2025 +0800
tree348aef2b074826b046ab73111edc59acee1d8cea
parent50f9b34b5340cfb32d14920bb0d41a90f48ffc40 [diff]
[AMDGPU] Implement vop3p complex pattern optmization for gisel (#130234)

Seeking opportunities to optimize VOP3P instructions by altering opsel,
opsel_hi, neg, neg_hi bits

Tests differences:
1. fix op_sel_hi bit for inline constant:
   1. `CodeGen/AMDGPU/packed-fp32.ll`
2. use neg bit to remove xor with 0x80008000
   1. `CodeGen/AMDGPU/strict_fsub.f16.ll`
   2. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.fdot2.ll`
   3. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot4.ll`
   4. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot8.ll`
   5. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot2.ll`
   6. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot4.ll`
   7. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot8.ll`
3. Remove xor 0x80008000, and use opsel, opsel_hi to remove alignbit
   1. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot2.ll`
6 files changed
tree: 348aef2b074826b046ab73111edc59acee1d8cea
  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. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-format-ignore
  30. .clang-tidy
  31. .git-blame-ignore-revs
  32. .gitattributes
  33. .gitignore
  34. .mailmap
  35. CODE_OF_CONDUCT.md
  36. CONTRIBUTING.md
  37. LICENSE.TXT
  38. pyproject.toml
  39. README.md
  40. SECURITY.md
README.md

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