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Re: SSE ABI change proof for Jan's old patch


On Mon, Dec 29, 2003 at 03:36:01PM -0500, Daniel Berlin wrote:
> I've got intel compilers 6.0, 7.0, 7.1, and 8.0, and here's the proof 
> that they pass the first three arguments in xmm registers only.

Ok, so what do we do about vector ABI compatibility between -march=p4
and -march=i686?

I would be willing to approve a new switch that changed the parameter
passing mode to registers, but I'm hesitant about allowing -march to
control the ABI; that's something that it's never controlved before.


r~


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