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Re: Regression on mainline in tree-vrp.c

From: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
To: Kazu Hirata <kazu at cs dot umass dot edu>
Cc: ro at TechFak dot Uni-Bielefeld dot DE, gcc at gcc dot gnu dot org
Date: Fri, 22 Apr 2005 08:48:45 -0700
Subject: Re: Regression on mainline in tree-vrp.c
References: <20050422020843.GA84830@troutmask.apl.washington.edu> <yddk6mvfa66.fsf@xayide.TechFak.Uni-Bielefeld.DE> <20050422.102625.64766325.kazu@cs.umass.edu>

On Fri, Apr 22, 2005 at 10:26:25AM -0400, Kazu Hirata wrote:
> Hi Rainer and Steve,
> 
> > | 4.1.0 20050419 (experimental) (i386-pc-solaris2.10) GCC error:           |
> > | in set_value_range, at tree-vrp.c:124                                    |
> > | Error detected at sem_intr.adb:437:1                                     |
> 
> There seem to be several ways to get to this ICE.  set_value_range is
> used in many places in tree-vrp.c.  I'll try to take a look at these
> in the next few days.
> 

I attached a cutdown test case of cher2k.f for your use
with this bug.  I don't know if you fortran or not, but
I can assure that this minimum test case is a very common
Fortran construct.  One other thing to keep in mind, this
only happens with -O2.

-- 
Steve

Attachment: cher2k.f
Description: Text document

References:
- Regression on mainline in tree-vrp.c
  - From: Steve Kargl
- Re: Regression on mainline in tree-vrp.c
  - From: Rainer Orth
- Re: Regression on mainline in tree-vrp.c
  - From: Kazu Hirata

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