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    SubjectRe: [PATCH] [POWERPC] Improve (in|out)_beXX() asm code
    Trent Piepho <> writes:

    > It's the _le versions that have a problem, since we can't get gcc to just use
    > the register indexed mode. It seems like an obvious thing to have a
    > constraint for, but I guess there weren't enough instructions that only come
    > in 'x' versions to bother with it. There is a 'Z' constraint, "Memory operand
    > that is an indexed or indirect from a register", but I tried it and it can use
    > both "rb,ri" and "disp(rb)" forms. Actually, I'm not sure how 'Z' is any
    > different than "m"?

    'Z' will never emit a non-zero constant displacement.


    Andreas Schwab, SuSE Labs,
    SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
    PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
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