[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 expand intrinsics to be used in constexpr

[RKSimon]

Similar to #160524 / #163732

__m128i _mm_mask_expand_epi8 (__m128i src, __mmask16 k, __m128i a)
__m128i _mm_maskz_expand_epi8 (__mmask16 k, __m128i a)
__m256i _mm256_mask_expand_epi8 (__m256i src, __mmask32 k, __m256i a)
__m256i _mm256_maskz_expand_epi8 (__mmask32 k, __m256i a)
__m512i _mm512_mask_expand_epi8 (__m512i src, __mmask64 k, __m512i a)
__m512i _mm512_maskz_expand_epi8 (__mmask64 k, __m512i a)

__m128i _mm_mask_expand_epi16 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi16 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi16 (__m256i src, __mmask16 k, __m256i a)
__m256i _mm256_maskz_expand_epi16 (__mmask16 k, __m256i a)
__m512i _mm512_mask_expand_epi16 (__m512i src, __mmask32 k, __m512i a)
__m512i _mm512_maskz_expand_epi16 (__mmask32 k, __m512i a)

__m128i _mm_mask_expand_epi32 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi32 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi32 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi32 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi32 (__m512i src, __mmask16 k, __m512i a)
__m512i _mm512_maskz_expand_epi32 (__mmask16 k, __m512i a)

__m128i _mm_mask_expand_epi64 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi64 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi64 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi64 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi64 (__m512i src, __mmask8 k, __m512i a)
__m512i _mm512_maskz_expand_epi64 (__mmask8 k, __m512i a)

__m128d _mm_mask_expand_pd (__m128d src, __mmask8 k, __m128d a)
__m128d _mm_maskz_expand_pd (__mmask8 k, __m128d a)
__m256d _mm256_mask_expand_pd (__m256d src, __mmask8 k, __m256d a)
__m256d _mm256_maskz_expand_pd (__mmask8 k, __m256d a)
__m512d _mm512_mask_expand_pd (__m512d src, __mmask8 k, __m512d a)
__m512d _mm512_maskz_expand_pd (__mmask8 k, __m512d a)

__m128 _mm_mask_expand_ps (__m128 src, __mmask8 k, __m128 a)
__m128 _mm_maskz_expand_ps (__mmask8 k, __m128 a)
__m256 _mm256_mask_expand_ps (__m256 src, __mmask8 k, __m256 a)
__m256 _mm256_maskz_expand_ps (__mmask8 k, __m256 a)
__m512 _mm512_mask_expand_ps (__m512 src, __mmask16 k, __m512 a)
__m512 _mm512_maskz_expand_ps (__mmask16 k, __m512 a)

NOTE: This isn't the expand load instructions, just the expand register variants.

[llvmbot]

@llvm/issue-subscribers-backend-x86

Author: Simon Pilgrim (RKSimon)

Similar to #160524 / #163732 ``` __m128i _mm_mask_expand_epi8 (__m128i src, __mmask16 k, __m128i a) __m128i _mm_maskz_expand_epi8 (__mmask16 k, __m128i a) __m256i _mm256_mask_expand_epi8 (__m256i src, __mmask32 k, __m256i a) __m256i _mm256_maskz_expand_epi8 (__mmask32 k, __m256i a) __m512i _mm512_mask_expand_epi8 (__m512i src, __mmask64 k, __m512i a) __m512i _mm512_maskz_expand_epi8 (__mmask64 k, __m512i a)

__m128i _mm_mask_expand_epi16 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi16 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi16 (__m256i src, __mmask16 k, __m256i a)
__m256i _mm256_maskz_expand_epi16 (__mmask16 k, __m256i a)
__m512i _mm512_mask_expand_epi16 (__m512i src, __mmask32 k, __m512i a)
__m512i _mm512_maskz_expand_epi16 (__mmask32 k, __m512i a)

__m128i _mm_mask_expand_epi32 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi32 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi32 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi32 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi32 (__m512i src, __mmask16 k, __m512i a)
__m512i _mm512_maskz_expand_epi32 (__mmask16 k, __m512i a)

__m128i _mm_mask_expand_epi64 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi64 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi64 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi64 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi64 (__m512i src, __mmask8 k, __m512i a)
__m512i _mm512_maskz_expand_epi64 (__mmask8 k, __m512i a)

__m128d _mm_mask_expand_pd (__m128d src, __mmask8 k, __m128d a)
__m128d _mm_maskz_expand_pd (__mmask8 k, __m128d a)
__m256d _mm256_mask_expand_pd (__m256d src, __mmask8 k, __m256d a)
__m256d _mm256_maskz_expand_pd (__mmask8 k, __m256d a)
__m512d _mm512_mask_expand_pd (__m512d src, __mmask8 k, __m512d a)
__m512d _mm512_maskz_expand_pd (__mmask8 k, __m512d a)

__m128 _mm_mask_expand_ps (__m128 src, __mmask8 k, __m128 a)
__m128 _mm_maskz_expand_ps (__mmask8 k, __m128 a)
__m256 _mm256_mask_expand_ps (__m256 src, __mmask8 k, __m256 a)
__m256 _mm256_maskz_expand_ps (__mmask8 k, __m256 a)
__m512 _mm512_mask_expand_ps (__m512 src, __mmask16 k, __m512 a)
__m512 _mm512_maskz_expand_ps (__mmask16 k, __m512 a)

NOTE: This isn't the expand load instructions, just the expand register variants.
</details>

[llvmbot]

Hi!

This issue may be a good introductory issue for people new to working on LLVM. If you would like to work on this issue, your first steps are:

1. Check that no other contributor is working on this issue. If someone is assigned to the issue or claimed to be working on it, ping the person. After one week without a response, the assignee may be changed.
2. Leave a comment indicating that you are working on the issue, or just create a pull request after following the steps below. Mention this issue in the description of the pull request.
3. Fix the issue locally.
4. Run the test suite locally. Remember that the subdirectories under test/ create fine-grained testing targets, so you can e.g. use make check-clang-ast to only run Clang's AST tests.
5. Create a Git commit.
6. Run git clang-format HEAD~1 to format your changes.
7. Open a pull request to the upstream repository on GitHub. Detailed instructions can be found in GitHub's documentation. Mention this issue in the description of the pull request.

If you have any further questions about this issue, don't hesitate to ask via a comment in the thread below.

[llvmbot]

@llvm/issue-subscribers-good-first-issue

Author: Simon Pilgrim (RKSimon)

Similar to #160524 / #163732 ``` __m128i _mm_mask_expand_epi8 (__m128i src, __mmask16 k, __m128i a) __m128i _mm_maskz_expand_epi8 (__mmask16 k, __m128i a) __m256i _mm256_mask_expand_epi8 (__m256i src, __mmask32 k, __m256i a) __m256i _mm256_maskz_expand_epi8 (__mmask32 k, __m256i a) __m512i _mm512_mask_expand_epi8 (__m512i src, __mmask64 k, __m512i a) __m512i _mm512_maskz_expand_epi8 (__mmask64 k, __m512i a)

__m128i _mm_mask_expand_epi16 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi16 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi16 (__m256i src, __mmask16 k, __m256i a)
__m256i _mm256_maskz_expand_epi16 (__mmask16 k, __m256i a)
__m512i _mm512_mask_expand_epi16 (__m512i src, __mmask32 k, __m512i a)
__m512i _mm512_maskz_expand_epi16 (__mmask32 k, __m512i a)

__m128i _mm_mask_expand_epi32 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi32 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi32 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi32 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi32 (__m512i src, __mmask16 k, __m512i a)
__m512i _mm512_maskz_expand_epi32 (__mmask16 k, __m512i a)

__m128i _mm_mask_expand_epi64 (__m128i src, __mmask8 k, __m128i a)
__m128i _mm_maskz_expand_epi64 (__mmask8 k, __m128i a)
__m256i _mm256_mask_expand_epi64 (__m256i src, __mmask8 k, __m256i a)
__m256i _mm256_maskz_expand_epi64 (__mmask8 k, __m256i a)
__m512i _mm512_mask_expand_epi64 (__m512i src, __mmask8 k, __m512i a)
__m512i _mm512_maskz_expand_epi64 (__mmask8 k, __m512i a)

__m128d _mm_mask_expand_pd (__m128d src, __mmask8 k, __m128d a)
__m128d _mm_maskz_expand_pd (__mmask8 k, __m128d a)
__m256d _mm256_mask_expand_pd (__m256d src, __mmask8 k, __m256d a)
__m256d _mm256_maskz_expand_pd (__mmask8 k, __m256d a)
__m512d _mm512_mask_expand_pd (__m512d src, __mmask8 k, __m512d a)
__m512d _mm512_maskz_expand_pd (__mmask8 k, __m512d a)

__m128 _mm_mask_expand_ps (__m128 src, __mmask8 k, __m128 a)
__m128 _mm_maskz_expand_ps (__mmask8 k, __m128 a)
__m256 _mm256_mask_expand_ps (__m256 src, __mmask8 k, __m256 a)
__m256 _mm256_maskz_expand_ps (__mmask8 k, __m256 a)
__m512 _mm512_mask_expand_ps (__m512 src, __mmask16 k, __m512 a)
__m512 _mm512_maskz_expand_ps (__mmask16 k, __m512 a)

NOTE: This isn't the expand load instructions, just the expand register variants.
</details>

[AryanBhirud]

@RKSimon heyy can i work on this?