=== v1.24.0 === (27 May 2024)

ISPC release with dot product functions, non-type template parameters, and generated code improvements. This release is based on patched LLVM 17.0.6.

Language changes:

• Added support for non-type template parameters. Uniform integers and enums can be used now as template parameters.
• Added dot product functions for unsigned and signed int8 and int16 types. They leverage AVX-VNNI and AVX512-VNNI instructions if supported by targets (docs).
• Added macro definitions for numeric limits.

New targets:

1. avx2vnni-i32x4, avx2vnni-i32x8, avx2vnni-i32x16 with AVX-VNNI instruction support,
2. avx512icl-x4, avx512icl-x8, avx512icl-x16, avx512icl-x32 and avx512icl-x64 with AVX512-VNNI instruction support.

Code generation:

• Fixed generation of code for GPU when unnecessary vectorized instruction are used during address arithmetic, e.g., for accessing fields of varying structures (#2846).
• Improved generated code for cases when foreach loop iteration domain is less than the target width (#2836 ).

Compiler switches behavior:

• --pic command line flag now corresponds to the -fpic flag of Clang and GCC, whereas the newly introduced --PIC corresponds to -fPIC.

Bug fixes:

• The implementation of round standard library function was aligned across all targets. It may potentially affect the results of the code that uses this function for the following targets: avx2-i16x16, avx2-i8x32 and all avx512 targets (#2793).
• Fixed cases when unwind info were not generated for functions. This impacted debugging and profiling on Windows (#2842).
• Fixed broken targets sse4-i8xN and avx2-i8xN (#2800).

Recommended versions of Runtime Dependencies when targeting GPU:

Linux:

• Intel(R) Graphics Compute Runtime https://github.com/intel/compute-runtime/releases/tag/24.05.28454.6
• Level Zero Loader https://github.com/oneapi-src/level-zero/releases/tag/v1.16.9
• Threading Building Blocks (TBB)

Alternatively, you can use a validated gfx driver stack supporting Intel® Arc™ available at https://dgpu-docs.intel.com/driver/installation.html

Windows:

• Intel(R) Graphics Windows(R) DCH Drivers 31.0.101.5518 https://www.intel.com/content/www/us/en/download/785597/intel-arc-iris-xe-graphics-windows.html
• Level Zero Loader https://github.com/oneapi-src/level-zero/releases/tag/v1.16.9
• OpenCL™ Offline Compiler (OCLOC) https://www.intel.com/content/www/us/en/developer/articles/tool/oneapi-standalone-components.html (this is needed for AoT compilation on Windows only)
• Supported GPU platforms: Intel(R) Arc Graphics, 11th-13th Gen Intel(R) Core processor graphics

Components revisions used in GPU-enabled build:

• KhronosGroup/SPIRV-LLVM-Translator@89ab5df3
• intel/vc-intrinsics@f9c34404
• oneapi-src/level-zero@61c97c87 (v1.16.9)
• https://github.com/llvm/llvm-project/commit/6009708(llvmorg-17.0.6) + patches from llvm_patches folder