From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeffrey A Law <law@cygnus.com>
To: Richard Henderson <rth@cygnus.com>
Cc: Marc Lehmann <pcg@goof.com>, egcs@cygnus.com
Subject: Re: question regarding asm() 
Date: Thu, 16 Oct 1997 15:19:00 -0000
Message-id: <1754.877035749@hurl.cygnus.com>
References: <19971016013930.22185@dot.cygnus.com>
X-SW-Source: 1997-10/msg00668.html

  In message < 19971016013930.22185@dot.cygnus.com >you write:
  > On Wed, Oct 15, 1997 at 10:05:34PM -0600, Jeffrey A Law wrote:
  >   "The input operands are guaranteed not to use any of the clobbered
  >    registers, and neither will the output operands' addresses, so you
  >    can read and write the clobbered registers as many times as you like."
  > 
  > That from 'info gcc "c ext" "extended asm"'.
Right.  That seems pretty unambigious to me.

  > > and in some cases it can't even tell you that it did something
  > > wrong. This is especially important on machines with weird register
  > > sets like the x86.
  > 
  > Ouch.
Yup.  I wouldn't be suprised if this ends up being similar to the problems
with passing args in registers for SMALL_REGISTER_CLASS machines.


jeff