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Re: Arg pointer and SSE code
- To: Jan Hubicka <jh at suse dot cz>
- Subject: Re: Arg pointer and SSE code
- From: Richard Henderson <rth at redhat dot com>
- Date: Thu, 22 Feb 2001 14:01:39 -0800
- Cc: bernds at redhat dot com, gcc at gcc dot gnu dot org
- References: <20010221205220.O8978@atrey.karlin.mff.cuni.cz>
On Wed, Feb 21, 2001 at 08:52:20PM +0100, Jan Hubicka wrote:
> Enabling -msse makes gcc to always use register 4 for arg pointer
> (if I am not mistaken) independently whether TImodes are used or not.
Yes, this is a major problem.
> Question remains, how to determine if we need the alignment code.
cfun->stack_alignment_needed? That might change through
different rounds of reload, as TImode values get spilled,
but elimination is prepared for that sort of thing.
r~