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    SubjectRe: [PATCH] [2.4] [2.5] [i386] Add support for GCC 3.1 -march=pentium{-mmx,3,4}

    On 2002.05.26 Ruth Ivimey-Cook wrote:
    >On Sun, 26 May 2002, Luigi Genoni wrote:
    >>On Sun, 26 May 2002, Dave Jones wrote:
    >>> On Sun, May 26, 2002 at 01:37:39AM +0200, J.A. Magallon wrote:
    >>> > Could you also split
    >>> > Pentium-Pro/Celeron/Pentium-II CONFIG_M686
    >>> > into
    >>> > Pentium-Pro CONFIG_M686
    >>> > Pentium-II/Celeron CONFIG_MPENTIUMII
    >>> There are also a few extra Athlon targets iirc. athlon-xp and the like,
    >>> which I'm not sure the purpose of. Some gcc know-all want to clue me in
    >>> to what these offer over -march=athlon ?
    >>I do not know about the gcc options, but Athlon XP/MP has sse instruction,
    >>while tbird has not, so it could be relate to this.

    Problem is that CPU selection is not based on cpu itself, but in options
    offered by previous gcc compilers.

    I think that the menu should contain separate config options for each
    processor type, so it is easily modifiable for specific optimizations
    offered by new compilers (for example, gcc-3.1 splitting i686 in
    pentium-pro, p2, p3 and p4), or some braindead hacker can optimize
    code snippets for some kind of processor.

    J.A. Magallon # Let the source be with you...
    Mandrake Linux release 8.3 (Cooker) for i586
    Linux werewolf 2.4.18 #1 SMP sáb may 25 14:44:46 CEST 2002 i686
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