Gabor Horvath 98078817d0 [cxx-interop] Support SIMD types in reverse interop ...

This supports both built-in vector types and the SIMDX<T> Swift types
that are used through type aliases like float3. These SIMD types are
passed via compatibility structs (with their valued memcpy-d into the
ABI compatible struct) as they have special ABI rules. E.g., a float3 is
not passed as float3, but as float4 on the ABI level.

Previously, we did not expose simd types from Swift to C++ (unless the
SIMD types were impoted from clang).

rdar://153218744

2025-09-09 14:50:54 +01:00

19 KiB

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