From: "Andreas Krebbel" <Andreas.Krebbel@de.ibm.com>
To: Richard Sandiford <rsandifo@nildram.co.uk>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PING] Target hook for rewriting inline asm constraints
Date: Mon, 05 Nov 2007 10:32:00 -0000 [thread overview]
Message-ID: <20071105103043.GA8118@homer.boeblingen.de.ibm.com> (raw)
In-Reply-To: <87ve8hxc1j.fsf@firetop.home>
> I don't understand. What I'm saying is that we should look through
> gcc/*.c for cases where the C construct "'m'" refers to "the constraint
> associated with legitimate addresses", and replace those cases with some
> target macro that is 'm' by default. E.g.:
...
> and other places would change similarly. If we do that consistently,
> there would no longer be a connection between 'm' and
> GO_IF_LEGITIMATE_ADDRESS.
Ok I see. The new TARGET_MEM_CONSTRAINT would have to be a hook
returning a new constraint letter for the architecture introducing the
new address format and 'm' otherwise - right ?!
That sounds reasonable to me - thanks for explaining it twice. I
thought you were suggesting a target hook which allows the back end to
limit what is accepted for 'm'.
Bye,
-Andreas-
next prev parent reply other threads:[~2007-11-05 10:32 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-30 12:54 Andreas Krebbel
2007-10-31 16:31 ` Tom Tromey
2007-10-31 16:43 ` Richard Guenther
2007-10-31 18:55 ` Andreas Krebbel
2007-10-31 19:13 ` Richard Guenther
2007-10-31 20:40 ` Andreas Krebbel
2007-11-04 23:05 ` Richard Sandiford
2007-11-05 9:25 ` Andreas Krebbel
2007-11-05 9:43 ` Richard Sandiford
2007-11-05 10:32 ` Andreas Krebbel [this message]
2007-11-05 11:02 ` Richard Sandiford
2007-11-05 13:42 ` Andreas Krebbel
2007-11-06 22:00 ` Richard Sandiford
2007-11-07 11:55 ` Andreas Krebbel
2007-10-31 17:22 ` Andreas Krebbel
2007-10-31 17:56 ` Tom Tromey
2007-11-06 18:20 ` Michael Meissner
2007-11-07 9:10 ` Andreas Krebbel
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