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GCC 15 Merges Support For Intel APX NF
The latest feature work around Intel's Advanced Performance Extensions (APX) that is merged for the in-development GCC 15 compiler is supporting APX NF functionality for suppressing the update of status flags on arithmetic operations.
The APX NF is short for "No Flags" and can be used with the instructions: INC, DEC, NEG, ADD, SUB, AND, OR, XOR, SAL, SAR, SHL, SHR, ROL, ROR, SHLD, SHRD, IMUL, IDIV, MUL, DIV, LZCNT, TZCNT and POPCNT. Intel APX is quite exciting with also adding more general purpose registers, optimized register state save/restores, a new 64-bit absolute direct jump instruction, and other new capabilities.About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software.
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