[all-commits] [llvm/llvm-project] e10afe: [Clang] VectorExprEvaluator::VisitCallExpr / Inter...

[SeongJaePark via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e10afe01ec7c79f45f62d9a42b07a7d984bdc345
      https://github.com/llvm/llvm-project/commit/e10afe01ec7c79f45f62d9a42b07a7d984bdc345
  Author: SeongJaePark <111725324+SeongjaeP at users.noreply.github.com>
  Date:   2025-10-20 (Mon, 20 Oct 2025)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsX86.td
    M clang/lib/AST/ByteCode/InterpBuiltin.cpp
    M clang/lib/AST/ExprConstant.cpp
    M clang/lib/Headers/avx512dqintrin.h
    M clang/lib/Headers/avx512fintrin.h
    M clang/lib/Headers/avx512vldqintrin.h
    M clang/lib/Headers/avx512vlintrin.h
    M clang/test/CodeGen/X86/avx-builtins.c
    M clang/test/CodeGen/X86/avx2-builtins.c
    M clang/test/CodeGen/X86/avx512dq-builtins.c
    M clang/test/CodeGen/X86/avx512f-builtins.c
    M clang/test/CodeGen/X86/avx512vl-builtins.c
    M clang/test/CodeGen/X86/avx512vldq-builtins.c

  Log Message:
  -----------
  [Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX/AVX512 subvector extraction intrinsics to be used in constexpr #157712 (#162836)

**This PR supersedes and replaces PR #158853**

The original branch diverged too far from the main branch, resulting in
significant merge conflicts that were difficult to resolve cleanly. To
provide a clean and reviewable history, this new PR was created by
cherry-picking the necessary commits onto a fresh branch based on the
latest `main`.

---

*(Original Description)*

This patch enables the use of AVX/AVX512 subvector extraction intrinsics
within `constexpr` functions. This is achieved by implementing the
evaluation logic for these intrinsics in
`VectorExprEvaluator::VisitCallExpr` and `InterpretBuiltin`.

The original discussion and review comments can be found in the previous
pull request for context: #158853

Fixes #157712



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