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Re: Modes with no registers
- From: Richard Henderson <rth at redhat dot com>
- To: Paolo Bonzini <bonzini at gnu dot org>
- Cc: GCC Development <gcc at gcc dot gnu dot org>
- Date: Fri, 16 Jul 2004 15:58:41 -0700
- Subject: Re: Modes with no registers
- References: <40F8540C.2040304@gnu.org>
On Sat, Jul 17, 2004 at 12:17:48AM +0200, Paolo Bonzini wrote:
> How do I distinguish "fake" modes that are only used within a pattern,
> from "real" modes that have registers?
VECTOR_MODE_SUPPORTED_P.
> (On x86 I got this problem is with vector modes: V8SI is only used to
> describe high multiplication of V8HI operands).
You'll also get it on x86 with V4SI when SSE is disabled.
r~