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RE: [avr-gcc-list] Clobber list isn't working
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From: |
Eric Weddington |
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Subject: |
RE: [avr-gcc-list] Clobber list isn't working |
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Date: |
Thu, 26 Jul 2007 11:30:53 -0600 |
> -----Original Message-----
> From:
> address@hidden
> [mailto:address@hidden
> org] On Behalf Of Joerg Wunsch
> Sent: Wednesday, July 25, 2007 11:13 PM
> To: address@hidden
> Subject: Re: [avr-gcc-list] Clobber list isn't working
>
> Eric Weddington <address@hidden> wrote:
>
> > True, but you said yourself that it was an absurd test
> > case. Obviously a nop doesn't clobber any registers.
>
> But the compiler doesn't know that, because it cannot "look inside"
> the inline asm statement: it has to trust the developer that they
> specified the correct constraint.
Point! :-)
Eric