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Re: [PATCH] Undefined cse.c behaviour causes 3.4 regression on HPUX
- From: Jeffrey A Law <law at redhat dot com>
- To: Roger Sayle <roger at eyesopen dot com>
- Cc: gcc-patches at gcc dot gnu dot org, John David Anglin <dave at hiauly1 dot hia dot nrc dot ca>
- Date: Mon, 25 Oct 2004 11:15:14 -0600
- Subject: Re: [PATCH] Undefined cse.c behaviour causes 3.4 regression on HPUX
- Organization: Red Hat, Inc
- References: <Pine.LNX.4.44.0410241821001.11785-100000@www.eyesopen.com>
- Reply-to: law at redhat dot com
On Sun, 2004-10-24 at 19:21 -0600, Roger Sayle wrote:
> It's a long story...
>
> I recently ran into a segmentation fault in cc1 on hppa-hp-hpux11.00
> compiling a large proprietary application with gcc 3.4.2. The same
> source code compiles and runs fine with gcc 3.3.3 and earlier versions.
> Investigating the problem, it turns out that the cause was a micompilation
> of the compiler itself. The cc1 from stage1/ works fine, but those from
> stage2/ and stage3 exhibit the segmentation fault on the same test case.
[ ... ]
Sigh. I thought we had caught all of these a few years ago, but
apparently not.
jeff