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    SubjectRe: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?
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    On Mon, Nov 8, 2010 at 12:03 AM, Andi Kleen <andi@firstfloor.org> wrote:
    > Andreas Schwab <schwab@linux-m68k.org> writes:
    >>
    >> The asm fails to mention that it modifies *regs.
    >
    > It has a memory clobber, that should be enough, no?

    No. A memory clobber does not cover automatic storage.

    Btw, I can't see a testcase anywhere so I just assume Andreas got
    it right as usual.

    Richard.

    > Besides in any case it cannot be eliminated because it has
    > valid non dead inputs and outputs.
    >
    > -Andi
    > --
    > ak@linux.intel.com -- Speaking for myself only.
    >


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