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    SubjectRe: MSEC_TO_JIFFIES is messed up...
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    "J. Bruce Fields" <bfields@fieldses.org> writes:

    > If gcc really optimizes that to just the identity function, then surely
    > that's a gcc bug? Multiplication is left-associative, so i * 1000 /
    > 1000 = (i * 1000) / 1000, but (i * 1000) should be zero for any i
    > divisible by i^(sizeof(int) - 12).

    Signed integer overflow is undefined in C, so the compiler is allowed to
    assume it does not happen.

    Andreas.

    --
    Andreas Schwab, SuSE Labs, schwab@suse.de
    SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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