[all-commits] [llvm/llvm-project] 87103a: [AArch64] Implement NEON FP8 vectors as VectorType...

[Momchil Velikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 87103a016fbfd480e1d3bb8eba23c27a9c74e70d
      https://github.com/llvm/llvm-project/commit/87103a016fbfd480e1d3bb8eba23c27a9c74e70d
  Author: Momchil Velikov <momchil.velikov at arm.com>
  Date:   2025-01-27 (Mon, 27 Jan 2025)

  Changed paths:
    M clang/include/clang/AST/Type.h
    M clang/include/clang/Basic/AArch64SVEACLETypes.def
    M clang/include/clang/Basic/TargetBuiltins.h
    M clang/lib/AST/ItaniumMangle.cpp
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CodeGenTypes.cpp
    M clang/lib/CodeGen/Targets/AArch64.cpp
    M clang/lib/Sema/SemaARM.cpp
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaType.cpp
    A clang/test/CodeGen/AArch64/builtin-shufflevector-fp8.c
    A clang/test/CodeGen/AArch64/fp8-cast.c
    M clang/test/CodeGen/arm-mfp8.c
    M clang/test/CodeGenCXX/aarch64-mangle-neon-vectors.cpp
    M clang/test/CodeGenCXX/mangle-neon-vectors.cpp
    A clang/test/Sema/aarch64-fp8-cast.c
    M clang/test/Sema/arm-mfp8.cpp
    M clang/utils/TableGen/NeonEmitter.cpp

  Log Message:
  -----------
  [AArch64] Implement NEON FP8 vectors as VectorType (#123603)

Reimplement Neon FP8 vector types using attribute `neon_vector_type`
instead of having them as builtin types.
This allows to implement FP8 Neon intrinsics without the need to add
special cases for these types when using `__builtin_shufflevector`
or bitcast (using C-style cast operator) between vectors, both
extensively used in the generated code in `arm_neon.h`.



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