Intel Kills Off AMX-TF32 Support Before It Even Shipped In Diamond Rapids

Intel has removed AMX-TF32 support from its ISA programming reference manual and is stripping the feature from the GNU Compiler Collection, killing the planned extension before its debut in Xeon Diamond Rapids processors expected in 2027. The decision follows the lack of actual hardware supporting AMX-TF32, which was intended to add native TensorFloat-32 format to Advanced Matrix Extensions for AI computations.

Intel Kills Off AMX-TF32 Support Before It Even Shipped In Diamond Rapids Intel has dropped AMX-TF32 before its debut in Xeon Diamond Rapids. The latest Intel programming reference manual has dropped AMX-TF32 and Intel engineers are already moving ahead to strip out the AMX-TF32 support that existed in the GNU Compiler Collection. Intel updated their ISA programming reference manual and the newly-published version now eliminates AMX-TF32 as well as User-Timer Events and Interrupts. AMX-TF32 was the planned ISA extension for adding the NVIDIA TensorFloat-32 "TF32" format natively to Advanced Matrix Extensions AMX . TF32 allows the range of FP32 but with the performance of FP16 for AI/matrix computations. Intel documentation Diamond Rapids processors are expected to launch in 2027 while now AMX-TF32 is being stripped away as a late change. AMX-TF32 now shares a similar fate of Intel updated their ISA programming reference manual and the newly-published version now eliminates AMX-TF32 as well as User-Timer Events and Interrupts. AMX-TF32 was the planned ISA extension for adding the NVIDIA TensorFloat-32 "TF32" format natively to Advanced Matrix Extensions AMX . TF32 allows the range of FP32 but with the performance of FP16 for AI/matrix computations. Intel documentation introduced AMX-TF32 in 2024 https://www.phoronix.com/news/Intel-GCC-Diamond-Rapids-ISA and the Diamond Rapids compiler patch confirmed AMX-TF32 https://www.phoronix.com/news/Intel-Diamond-Rapids-APX-AVX10 as an ISA capability of those next-gen Xeon P-core processors.Diamond Rapids processors are expected to launch in 2027 while now AMX-TF32 is being stripped away as a late change. The updated ISA documentation https://cdrdv2.intel.com/v1/dl/getContent/671368 drops the AMX-TF32 as well as User-Timer Events and Interrupts. This patch https://gcc.gnu.org/pipermail/gcc-patches/2026-June/722128.html from Intel today goes ahead and removes AMX-TF32 from the GCC compiler. The support is being stripped away given " no actual hardware " is availablr with this functionality. It's also dropping AMX-TF32 from the Diamond Rapids target. As Diamond Rapids appeared in GCC 15 and GCC 16 with AMX-TF32 support included, back-ported patches are now needed to remove that feature.AMX-TF32 now shares a similar fate of