================ @@ -144,6 +144,92 @@ double3 cos(double3); _HLSL_BUILTIN_ALIAS(__builtin_elementwise_cos) double4 cos(double4); +//===----------------------------------------------------------------------===// +// dot product builtins +//===----------------------------------------------------------------------===// +#ifdef __HLSL_ENABLE_16_BIT +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +half dot(half, half); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +half dot(half2, half2); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +half dot(half3, half3); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +half dot(half4, half4); + +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +int16_t dot(int16_t, int16_t); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +int16_t dot(int16_t2, int16_t2); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +int16_t dot(int16_t3, int16_t3); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +int16_t dot(int16_t4, int16_t4); + +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +uint16_t dot(uint16_t, uint16_t); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +uint16_t dot(uint16_t2, uint16_t2); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +uint16_t dot(uint16_t3, uint16_t3); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +uint16_t dot(uint16_t4, uint16_t4); +#endif + +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +float dot(float, float); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +float dot(float2, float2); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +float dot(float3, float3); +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +float dot(float4, float4); + +_HLSL_BUILTIN_ALIAS(__builtin_hlsl_dot) +double dot(double, double); ---------------- dmpots wrote:
I think the double case deserves some discussion about whether this is valid hlsl or not. Currently dxc will only accept the `dot(double, double)` overload because it happens to lower that to a scalar multiply. The vector overloads are not supported because there is no double overload of the final dxil `dot` intrinsic. https://github.com/llvm/llvm-project/pull/81190 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
