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[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX subvector shuffles intrinsics to be used in constexpr #169312

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[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX subvector shuffles intrinsics to be used in constexpr#169312
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AhmedYasser5
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backend:X86clang:bytecodeIssues for the clang bytecode constexpr interpreterclang:headersHeaders provided by Clang, e.g. for intrinsicsconstexprAnything related to constant evaluationgood first issuehttps://github.com/llvm/llvm-project/contribute
@RKSimon

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RKSimon
opened on Nov 24, 2025

Split off from #160514 as these are the only ones that require zero handling:

_mm256_permute2f128_pd _mm256_permute2f128_ps _mm256_permute2f128_si256 _mm256_permute2x128_si256

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backend:X86clang:bytecodeIssues for the clang bytecode constexpr interpreterclang:headersHeaders provided by Clang, e.g. for intrinsicsconstexprAnything related to constant evaluationgood first issuehttps://github.com/llvm/llvm-project/contribute

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