Intel’s Next-Gen Panther Lake Client & Clearwater Forest Xeon CPUs Now Supported In LLVM Along With AVX10.1

AIDA64 Adds Support For Intel Panther Lake CPUs, AVX-512 Benchmarks For AMD Ryzen CPUs 1

The LLVM 18.1 release has seen new support for Intel's next-gen Panther Lake client & Clearwater Forest server CPUs.

In 2025, Intel aims to release a range of new chips for both client and server segments while ramping up the production of its late 2024 Arrow Lake and Lunar Lake lineups. Some of Intel's biggest launches next year will be the Panther Lake "Core" and Clearwater Forest "Xeon" CPUs.

Phoronix reports that the latest release of LLVM 18.1 has added these next-gen chips within the support list. In addition to the CPUs, the new release also adds support for AVX10.1-256 & AVX10.1-512 instruction set architecture which paves the way for next-gen CPU architectures by team Blue. Some of the highlights of the release are mentioned below:

ISA support for Intel AVX10.1-256 and AVX10.1-512.

Intel Panther Lake and Clearwater Forest targets are now added with -march=pantherlake and -march=clearwaterforest.

The "-mapxf" switch is now supported as part of the ongoing Intel Advanced Performance Extensions (APX) enablement.

Various new RISC-V instructions are supported. The SiFive P670 target is also now supported.

Support for Arm Cortex A520, A720, and X4 CPUs. The Arm Cortex-M52 CPU is also now supported.

LLVM 18 on LoongArch now supports LSX 128-bit and LASX 256-bit SIMD with new intrinsics. LoongArch on LLVM also has initial support for auto vectorization and linker relaxation.

Support for the Intel AVX10.1 ISA as well as Intel additions for USER_MSR.

Intel Panther Lake and Clearwater Forest targets are now added with -march=pantherlake and -march=clearwaterforest.

Intel OpenMP kernel language support.

Quite a lot of bug fixes.

The Intel Panther Lake CPUs will follow the Arrow Lake CPUs for desktop and mobile platforms. These chips will be supported on the same LGA 1851 socket that debuts with Arrow Lake later this year and will utilize next-gen Cougar Cove P-Cores with optimized Skymont E-Cores. Intel has already teased the doubling of AI performance for Panther Lake chips over Lunar Lake. The chips are expected to be fabricated using the Intel 18A process node and incorporate next-gen iGPU cores (Celestial Xe3).

On the other hand, we have Clearwater Forest E-Core Xeon CPUs which will serve the server market and will incorporate Darkmont cores based on the 18A process node. These chips are positioned for launch in 2025 and will be replacing the Sierra Forest E-Core Xeons with up to 288 cores. Their target market is going to be the cloud and data center segment where they will compete against the likes of AMD's Zen 5C architecture which debuts with a variant of EPYC Turin in 2025. Intel will be talking more about its next-gen CPU architectures and family during Computex in June so stay tuned for more information.