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[Bug tree-optimization/26304] [4.2 Regression] 25_algorithms/prev_permutation/1.cc on powerpc{64,}-linux and powerpc-darwin
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Feb 2006 03:52:35 -0000
- Subject: [Bug tree-optimization/26304] [4.2 Regression] 25_algorithms/prev_permutation/1.cc on powerpc{64,}-linux and powerpc-darwin
- References: <bug-26304-133@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from law at redhat dot com 2006-02-16 03:52 -------
Subject: Re: [4.2 Regression]
25_algorithms/prev_permutation/1.cc on powerpc{64,}-linux and
powerpc-darwin
On Thu, 2006-02-16 at 02:59 +0000, pinskia at gcc dot gnu dot org wrote:
>
> ------- Comment #9 from pinskia at gcc dot gnu dot org 2006-02-16 02:59 -------
> (In reply to comment #8)
> > > Which looks more like VRP messing up.
> > Can you check something for me. Is sizetype an unsigned type on
> > this platform? And what type is ivtmp?
> sizetype should be "unsigned long int" but I am not 100% sure.
>
> unsigned int ivtmp.60;
Thanks. There's a reasonable possibility this is the same bug
I'm already working in. It's a latent problem in how we set up
TYPE_MAX_VALUE on targets which have an unsigned sizetype.
jeff
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26304