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Re: optimization/4579
- From: Matt Hiller <hiller at redhat dot com>
- To: d-s-j at web dot de, gcc-gnats at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org
- Date: Wed, 2 Jan 2002 17:44:02 -0800 (PST)
- Subject: Re: optimization/4579
I've had some time to look at this again. The problem's cropping
up in combine; combine_simplify_rtx ends up calling
gen_lowpart_for_combine (V2SFmode, const1_rtx), but
gen_lowpart_for_combine doesn't deal properly with the V2SFmode arguument.
Disabling the call to gen_lowpart_for_combine fixes the problem, but this
isn't a proper solution; I'm working on one now.
Matt
On Thu, 6 Dec 2001, Matt Hiller wrote:
> I've reproduced this crash in current cvs and I'll see if I can
> fix the problem. I figured I should say something about it so others don't
> duplicate the effort.
>
>
--
Matt Hiller
GCC Engineer, Red Hat, Inc., Sunnyvale office
hiller@redhat.com