https://github.com/vmustya created https://github.com/llvm/llvm-project/pull/170532
The commit adds support for the cl_intel_subgroup_buffer_prefetch OpenCL extension. The extension introduces a new built-in functions that allow prefetching data from a global memory to caches as a subgroup-level operation. The extension is defined here: https://registry.khronos.org/OpenCL/extensions/intel/cl_intel_subgroup_buffer_prefetch.html >From 12397152f4f861966d12caeeefc4dde97cdb7f35 Mon Sep 17 00:00:00 2001 From: Victor Mustya <[email protected]> Date: Wed, 3 Dec 2025 10:40:27 -0800 Subject: [PATCH] Add support for the cl_intel_subgroup_buffer_prefetch The commit adds support for the cl_intel_subgroup_buffer_prefetch OpenCL extension. The extension introduces a new built-in functions that allow prefetching data from a global memory to caches as a subgroup-level operation. The extension is defined here: https://registry.khronos.org/OpenCL/extensions/intel/cl_intel_subgroup_buffer_prefetch.html --- clang/lib/Headers/opencl-c.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/clang/lib/Headers/opencl-c.h b/clang/lib/Headers/opencl-c.h index f65b4b314cffd..2ea48f2760c76 100644 --- a/clang/lib/Headers/opencl-c.h +++ b/clang/lib/Headers/opencl-c.h @@ -17525,6 +17525,13 @@ void __ovld __conv intel_sub_group_block_write_ui8( __global uint* p, uint #endif // defined(cl_intel_subgroups_char) || defined(cl_intel_subgroups_short) || // defined(cl_intel_subgroups_long) + +#if defined(cl_intel_subgroup_buffer_prefetch) +void __ovld __conv intel_sub_group_block_prefetch_ui(const __global uint *p); +void __ovld __conv intel_sub_group_block_prefetch_ui2(const __global uint *p); +void __ovld __conv intel_sub_group_block_prefetch_ui4(const __global uint *p); +void __ovld __conv intel_sub_group_block_prefetch_ui8(const __global uint *p); +#endif // defined(cl_intel_subgroup_buffer_prefetch) #endif // cl_intel_subgroups #if defined(cl_intel_subgroups_short) @@ -17660,6 +17667,14 @@ void __ovld __conv intel_sub_group_block_write_us2( __global ushort* p, u void __ovld __conv intel_sub_group_block_write_us4( __global ushort* p, ushort4 data ); void __ovld __conv intel_sub_group_block_write_us8( __global ushort* p, ushort8 data ); void __ovld __conv intel_sub_group_block_write_us16( __global ushort* p, ushort16 data ); + +#if defined(cl_intel_subgroup_buffer_prefetch) +void __ovld __conv intel_sub_group_block_prefetch_us(const __global ushort *p); +void __ovld __conv intel_sub_group_block_prefetch_us2(const __global ushort *p); +void __ovld __conv intel_sub_group_block_prefetch_us4(const __global ushort *p); +void __ovld __conv intel_sub_group_block_prefetch_us8(const __global ushort *p); +void __ovld __conv intel_sub_group_block_prefetch_us16(const __global ushort *p); +#endif // defined(cl_intel_subgroup_buffer_prefetch) #endif // cl_intel_subgroups_short #if defined(cl_intel_subgroups_char) @@ -17795,6 +17810,14 @@ void __ovld __conv intel_sub_group_block_write_uc2( __global uchar* p, uc void __ovld __conv intel_sub_group_block_write_uc4( __global uchar* p, uchar4 data ); void __ovld __conv intel_sub_group_block_write_uc8( __global uchar* p, uchar8 data ); void __ovld __conv intel_sub_group_block_write_uc16( __global uchar* p, uchar16 data ); + +#if defined(cl_intel_subgroup_buffer_prefetch) +void __ovld __conv intel_sub_group_block_prefetch_uc(const __global uchar *p); +void __ovld __conv intel_sub_group_block_prefetch_uc2(const __global uchar *p); +void __ovld __conv intel_sub_group_block_prefetch_uc4(const __global uchar *p); +void __ovld __conv intel_sub_group_block_prefetch_uc8(const __global uchar *p); +void __ovld __conv intel_sub_group_block_prefetch_uc16(const __global uchar *p); +#endif // defined(cl_intel_subgroup_buffer_prefetch) #endif // cl_intel_subgroups_char #if defined(cl_intel_subgroups_long) @@ -17839,6 +17862,13 @@ void __ovld __conv intel_sub_group_block_write_ul( __global ulong* p, ul void __ovld __conv intel_sub_group_block_write_ul2( __global ulong* p, ulong2 data ); void __ovld __conv intel_sub_group_block_write_ul4( __global ulong* p, ulong4 data ); void __ovld __conv intel_sub_group_block_write_ul8( __global ulong* p, ulong8 data); + +#if defined(cl_intel_subgroup_buffer_prefetch) +void __ovld __conv intel_sub_group_block_prefetch_ul(const __global ulong *p); +void __ovld __conv intel_sub_group_block_prefetch_ul2(const __global ulong *p); +void __ovld __conv intel_sub_group_block_prefetch_ul4(const __global ulong *p); +void __ovld __conv intel_sub_group_block_prefetch_ul8(const __global ulong *p); +#endif // defined(cl_intel_subgroup_buffer_prefetch) #endif // cl_intel_subgroups_long #if defined(cl_intel_subgroup_local_block_io) _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
