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    SubjectRe: [PATCH] [RFC] [2.5 i386] GCC 3.1 -march support, PPRO_FENCE reduction, prefetch fixes and other CPU-related changes
    On Sun, 2002-08-04 at 21:23, Luca Barbieri wrote:
    > Added, with the exception that sfence is only used if CONFIG_X86_OOSTORE
    > is not defined (currently never).

    Ok sorry I follow what you are doing. What I don't understand is why you
    are generating unneeded sfence/mfence instructions in the other cases ?

    When we use MMX/SSE we need the view to be consistent anyway so the
    various copying routines already handle this internally.

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