Re: optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001

Re: optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001

[Volker Reichelt]

The following reply was made to PR optimization/8479; it has been noted by GNATS.

From: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
To: bangerth@ices.utexas.edu, matz@suse.de, gcc-bugs@gcc.gnu.org,
 gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: optimization/8479: [new-ra] ICE in select_spill,
 at ra-colorize.c:1001
Date: Tue, 20 May 2003 23:12:34 +0200 (CEST)

 The bug is still present in 3.3 branch and mainline.
 A shorter testcase is the following:
 
 -----------------------------------------------------------------------
 int bar();
 
 int foo()
 {
     long double x=0, y=0;
     x += bar();
     return x+y;
 }
 -----------------------------------------------------------------------
 
 Just compile with "gcc -fnew-ra -O -fPIC".
 
 Regards,
 Volker
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8479
 
 

Re: optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001

[Christian Ehrhardt]

The following reply was made to PR optimization/8479; it has been noted by GNATS.

From: "Christian Ehrhardt" <ehrhardt@mathematik.uni-ulm.de>
To: bangerth@dealii.org, bangerth@ticam.utexas.edu, gcc-bugs@gcc.gnu.org,
  gcc-prs@gcc.gnu.org, matz@suse.de, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001
Date: Mon, 24 Mar 2003 10:46:36 +0100

 On Sat, Mar 22, 2003 at 06:18:28PM -0000, bangerth@dealii.org wrote:
 > Synopsis: [new-ra] ICE in select_spill, at ra-colorize.c:1001
 > 
 > State-Changed-From-To: open->analyzed
 > State-Changed-By: bangerth
 > State-Changed-When: Sat Mar 22 18:18:28 2003
 > State-Changed-Why:
 >     Still happens with 3.3 and 3.4 branches.
 
 But it is fixed on the new-regalloc-branch. Just porting the select_spill
 change from new-regalloc-branch will probably fix this.
 
     regards  Christian
 
 -- 
 THAT'S ALL FOLKS!

Re: optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001

[bangerth]

Synopsis: [new-ra] ICE in select_spill, at ra-colorize.c:1001

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Sat Mar 22 18:18:28 2003
State-Changed-Why:
    Still happens with 3.3 and 3.4 branches.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8479

optimization/8479: [new-ra] ICE in select_spill, at ra-colorize.c:1001

[bangerth]

>Number:         8479
>Category:       optimization
>Synopsis:       [new-ra] ICE in select_spill, at ra-colorize.c:1001
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 06 09:06:02 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Wolfgang Bangerth
>Release:        unknown-1.0
>Organization:
>Environment:
Present CVS on Linux
>Description:
The following ICEs with -fnew-ra -O2 -fPIC:
-------------------------------------
bugs/gcc> cat x.c
double pow (double, double);
double fabs (double);

long double * end ();

long double foo (const long double p)
{
  long double sum0 = 0,
              sum1 = 0;
  long double * ptr=0,eptr=0;
  while (ptr != end())
    sum0 += pow(fabs(*ptr++), p);

  return pow(sum0+sum1, p);
};


bugs/gcc> /home/bangerth/bin/gcc-3.3x-pre/bin/gcc -fnew-ra -O2 -fPIC -c x.c
x.c: In function `foo':
x.c:15: internal compiler error: in select_spill, at ra-colorize.c:1001
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: