"Don" <nos...@nospam.com> wrote in message news:isoh6c$15jb$1...@digitalmars.com... > Nick Sabalausky wrote: >> So my main question: Does DMD do anything like, say, detecting the CPU at >> compile time and then enabling instructions only available on that CPU >> and up? Or does it do anything like always assuming the target CPU has >> SSE2? Anything like that that could cause differences between our CPUs to >> result in object code that will work on one of the CPUs, but not the >> other? FWIW, the CPU on my linux box is i686, so it's not like I'm on >> some super-ultra-old i586, or anything like that. > > DMD itself doesn't, but the array operations do. The DMD backend is > ancient, and generates code for original Pentiums (+ 64 bit equivalents of > the same instructions).
Is there any way to force the array operations down to a certain level? Or even better yet, have them detect the CPU at startup and then use the appropriate version?
