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LLVM 21.1 Released With AMD GFX1250 Target, Improved RISC-V, New C/C++ Features


LLVM 21.1 is out today as the first stable version of the LLVM 21 compiler stack

This half-year stable release to the open-source LLVM compiler software brings new hardware support, new language features, and a lot of other enhancements throughout this massive and widely-used codebase. LLVM 21 introduces the AMD GFX1250 target for what is expected to be an APU with an RDNA4 refresh (RDNA 4.5?) There are also other AMDGPU LLVM back-end enhancements for helping their ROCm stack and other libc-for-GPU efforts.

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