Re:Welcome Debian riscv64
by cmeacham98 on Sunday July 23, 2023 @11:28PM
(#36842793)
Debian distributes compiled binaries. Thus, they have to either turn processor features on in all their binaries, or off (or distribute two sets of binaries).
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Debian does distribute SSE-using binaries (with fallback) on i386 which detects presence of SSE at runtime using CPUID.
Re:Welcome Debian riscv64
by IntelMiner on Monday July 24, 2023 @02:18AM
(#36843721)
You're thinking of optimizing the code for a specific processor. Run-time codepaths that detect CPU features have existed since MMX and SSE
There are options for runtime instruction selection: