Messages in this thread | | | Date | Mon, 8 Nov 2010 11:49:13 +0100 | Subject | Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ? | From | Richard Guenther <> |
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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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