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Re: patch: x86 generic simd fixlet
- From: Aldy Hernandez <aldyh at redhat dot com>
- To: Richard Henderson <rth at redhat dot com>, gcc-patches at gcc dot gnu dot org, janis187 at us dot ibm dot com
- Date: Tue, 8 Jul 2003 20:29:08 -0400
- Subject: Re: patch: x86 generic simd fixlet
- References: <20030708192109.GA26987@redhat.com> <20030709002101.GJ481@redhat.com>
On Tue, Jul 08, 2003 at 05:21:01PM -0700, Richard Henderson wrote:
> On Tue, Jul 08, 2003 at 03:21:09PM -0400, Aldy Hernandez wrote:
> > enum machine_mode mode = TYPE_MODE (type);
> > if (SSE_REG_MODE_P (mode)
> > + && TARGET_SSE
> > && (!TYPE_USER_ALIGN (type) || TYPE_ALIGN (type) > 128))
>
> I don't think this is correct. It means the ABI changes with -msse.
Yeah sure, with SSE the arguments may go in SIMD registers. Without
it, they go in GPRs. Completely different ABIs ;-).
Aldy