From: "Joseph S. Myers" <joseph@codesourcery.com>
To: Paolo Bonzini <paolo.bonzini@lu.unisi.ch>
Cc: gcc patches <gcc-patches@gcc.gnu.org>
Subject: Re: Stricter implicit conversions between vectors, revised patch
Date: Fri, 12 Jan 2007 13:16:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.64.0701121316120.3053@digraph.polyomino.org.uk> (raw)
In-Reply-To: <45A746DC.3050201@lu.unisi.ch>
On Fri, 12 Jan 2007, Paolo Bonzini wrote:
> Joseph S. Myers wrote:
> > The vector conversions changes broke the handling of opaque types. These
> > are always meant to be convertible to/from other types of the same size,
> > whether or not being lax (see the SPE PIM, which defines an opaque type and
> > lots of non-opaque types), but not to/from types of different sizes. This
> > showed up in spe.h failing to compile. (PowerPC is the only target defining
> > the hook to have opaque types at all.)
>
> At one point, I had a patch to remove the hook at all, and instead use a bit
> in the vector type itself. Would you be interested in me reviving it?
Depends on whether there's a spare bit available in vector types, but this
seems reasonable in principle.
--
Joseph S. Myers
joseph@codesourcery.com
prev parent reply other threads:[~2007-01-12 13:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-21 16:57 Mark Shinwell
2006-12-22 10:17 ` Paolo Bonzini
2006-12-22 10:35 ` Mark Shinwell
2006-12-22 13:35 ` Mark Shinwell
2006-12-23 18:46 ` Mark Shinwell
2006-12-28 8:48 ` Gerald Pfeifer
2007-01-08 9:57 ` Mark Shinwell
2007-01-08 16:00 ` Gerald Pfeifer
2007-01-03 22:17 ` Mark Mitchell
2007-01-09 4:16 ` Andrew Pinski
2007-01-11 23:17 ` Joseph S. Myers
2007-01-12 8:29 ` Paolo Bonzini
2007-01-12 13:16 ` Joseph S. Myers [this message]
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