[X86][Clang] Add AVX512 Integer Comparison Intrinsics for constexpr Evaluation (#164026)

Enables constexpr evaluation for the following AVX512 Integer Comparison Intrinsics:
```
_mm_cmp_epi8_mask _mm_cmp_epu8_mask
_mm_cmp_epi16_mask _mm_cmp_epu16_mask
_mm_cmp_epi32_mask _mm_cmp_epu32_mask
_mm_cmp_epi64_mask _mm_cmp_epu64_mask

_mm256_cmp_epi8_mask _mm256_cmp_epu8_mask
_mm256_cmp_epi16_mask _mm256_cmp_epu16_mask
_mm256_cmp_epi32_mask _mm256_cmp_epu32_mask
_mm256_cmp_epi64_mask _mm256_cmp_epu64_mask

_mm512_cmp_epi8_mask _mm512_cmp_epu8_mask
_mm512_cmp_epi16_mask _mm512_cmp_epu16_mask
_mm512_cmp_epi32_mask _mm512_cmp_epu32_mask
_mm512_cmp_epi64_mask _mm512_cmp_epu64_mask
```
Part 1 of #162054
5 files changed
tree: 8df2990c655544b1f485358c33b3f11355f91164
  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. libsycl/
  16. libunwind/
  17. lld/
  18. lldb/
  19. llvm/
  20. llvm-libgcc/
  21. mlir/
  22. offload/
  23. openmp/
  24. orc-rt/
  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
  30. .clang-format-ignore
  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

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