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Re: altivec fix for starting_frame_offset
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Richard Henderson <rth at redhat dot com>, Aldy Hernandez <aldyh at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 01 Mar 2002 16:14:52 -0500
- Subject: Re: altivec fix for starting_frame_offset
>>>>> Richard Henderson writes:
Richard> On Fri, Mar 01, 2002 at 02:28:23PM -0500, David Edelsohn wrote:
>> It is constant on Darwin, so why can't GCC rely on it in this case
>> instead of going through this mess to lie to GCC about the real positions
>> of the stack and arguments?
Richard> We aren't lying. We're accurately describing them in way that
Richard> reflects the fact that the first argument address is 8 mod 16.
The patch defines FIRST_PARM_OFFSET as 0. I am a little worried
about having GCC's concept of the argument pointer not point at the first
word in the argument area.
David