https://github.com/Maetveis created https://github.com/llvm/llvm-project/pull/150393
These map to SPIR-V instructions, which are long supported by the llvm SPIR-V target [1] and the llvm-spirv translator [2]. Intel's offline compiler (ocloc) and OpenCL implementation trivially supports these, by having these same declarations [3] and relying on llvm-spirv to map calls to them to their corresponding SPIR-V instructions. [1]: https://github.com/llvm/llvm-project/blob/531cf8298b08eacdf670bac8c28db97a5dc8cb01/llvm/lib/Target/SPIRV/SPIRVBuiltins.td#L1546C11-L1546C27 [2]: https://github.com/KhronosGroup/SPIRV-LLVM-Translator/blob/10c7569b3c4cb456fbfdcc86c3de45d46c7f5fa8/lib/SPIRV/OCLUtil.h#L327 [3]: https://github.com/intel/intel-graphics-compiler/blob/342c4fb729ff6a20a41e19adc8329ad18ba05660/IGC/BiFModule/Languages/OpenCL/opencl_cth_released.h#L6899 From fe47bd19a1342363761b7339fc46c7ee2dc08ced Mon Sep 17 00:00:00 2001 From: Gergely Meszaros <gergely.mesza...@intel.com> Date: Thu, 24 Jul 2025 01:19:08 -0700 Subject: [PATCH] [OpenCL] Add decls for cl_intel_bfloat16_conversions These map to SPIR-V instructions, which are long supported by the llvm SPIR-V target [1] and the llvm-spirv translator [2]. Intel's offline compiler (ocloc) and OpenCL implementation trivially supports these, by having these same declarations [3] and relying on llvm-spirv to map calls to them to their corresponding SPIR-V instructions. [1]: https://github.com/llvm/llvm-project/blob/531cf8298b08eacdf670bac8c28db97a5dc8cb01/llvm/lib/Target/SPIRV/SPIRVBuiltins.td#L1546C11-L1546C27 [2]: https://github.com/KhronosGroup/SPIRV-LLVM-Translator/blob/10c7569b3c4cb456fbfdcc86c3de45d46c7f5fa8/lib/SPIRV/OCLUtil.h#L327 [3]: https://github.com/intel/intel-graphics-compiler/blob/342c4fb729ff6a20a41e19adc8329ad18ba05660/IGC/BiFModule/Languages/OpenCL/opencl_cth_released.h#L6899 --- clang/lib/Headers/opencl-c.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/clang/lib/Headers/opencl-c.h b/clang/lib/Headers/opencl-c.h index e1e0fdeadb0aa..f65b4b314cffd 100644 --- a/clang/lib/Headers/opencl-c.h +++ b/clang/lib/Headers/opencl-c.h @@ -18410,6 +18410,22 @@ intel_sub_group_avc_mce_convert_to_sic_result( #pragma OPENCL EXTENSION cl_intel_device_side_avc_motion_estimation : end #endif // cl_intel_device_side_avc_motion_estimation +#if defined(cl_intel_bfloat16_conversions) +ushort __ovld intel_convert_bfloat16_as_ushort(float source); +ushort2 __ovld intel_convert_bfloat162_as_ushort2(float2 source); +ushort3 __ovld intel_convert_bfloat163_as_ushort3(float3 source); +ushort4 __ovld intel_convert_bfloat164_as_ushort4(float4 source); +ushort8 __ovld intel_convert_bfloat168_as_ushort8(float8 source); +ushort16 __ovld intel_convert_bfloat1616_as_ushort16(float16 source); + +float __ovld intel_convert_as_bfloat16_float(ushort source); +float2 __ovld intel_convert_as_bfloat162_float2(ushort2 source); +float3 __ovld intel_convert_as_bfloat163_float3(ushort3 source); +float4 __ovld intel_convert_as_bfloat164_float4(ushort4 source); +float8 __ovld intel_convert_as_bfloat168_float8(ushort8 source); +float16 __ovld intel_convert_as_bfloat1616_float16(ushort16 source); +#endif // cl_intel_bfloat16_conversions + #ifdef cl_amd_media_ops uint __ovld amd_bitalign(uint, uint, uint); uint2 __ovld amd_bitalign(uint2, uint2, uint2); _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
