Arg pointer and SSE code

[Richard Henderson]

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~