[AArch64] Implement FP8 SVE Intrinsics for narrowing conversions (#118124)

This patch adds the following instrinsics:

* Half-precision and BFloat16 convert, narrow, and interleave to 8-bit
floating-point.

  // Variant is also available for: _bf16_x2
  svmfloat8_t svcvtn_mf8[_f16_x2]_fpm(svfloat16x2_t zn, fpm_t fpm);

* Single-precision convert, narrow, and interleave to 8-bit
floating-point (top and bottom).

svmfloat8_t svcvtnt_mf8[_f32_x2]_fpm(svmfloat8_t zd, svfloat32x2_t zn,
fpm_t fpm);
  svmfloat8_t svcvtnb_mf8[_f32_x2]_fpm(svfloat32x2_t zn, fpm_t fpm);
7 files changed
tree: b21caf2aeeceaed1226eb0f2bf460d9fe81e5cdf
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. libc/
  11. libclc/
  12. libcxx/
  13. libcxxabi/
  14. libunwind/
  15. lld/
  16. lldb/
  17. llvm/
  18. llvm-libgcc/
  19. mlir/
  20. offload/
  21. openmp/
  22. polly/
  23. pstl/
  24. runtimes/
  25. third-party/
  26. utils/
  27. .clang-format
  28. .clang-tidy
  29. .git-blame-ignore-revs
  30. .gitattributes
  31. .gitignore
  32. .mailmap
  33. CODE_OF_CONDUCT.md
  34. CONTRIBUTING.md
  35. LICENSE.TXT
  36. pyproject.toml
  37. README.md
  38. SECURITY.md
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