Movim • LLVM Improves Zen 1 / Zen 2 Support To Deal With "Notoriously Bad" PDEP/PEXT

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LLVM Improves Zen 1 / Zen 2 Support To Deal With "Notoriously Bad" PDEP/PEXT

news.movim.eu / Phoronix • 10:05

The LLVM/Clang compiler toolchain merged overnight better support for the nearly decade-old AMD Zen 1 processors and also helps with Zen+ and Zen 2 processors too. This latest work thanks to the open-source community is for providing more informed instruction scheduling around PDEP and PEXT that end up being quite costly for these original Zen processors...