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* [Bug c++/14658] New: [lno] segfault when calling function twice in a loop
@ 2004-03-19 20:22 reichelt at gcc dot gnu dot org
  2004-03-19 23:32 ` [Bug optimization/14658] " pinskia at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2004-03-19 20:22 UTC (permalink / raw)
  To: gcc-bugs

The lno-branch segfaults when the following code snippet is compiled
with "-O2 -floop-optimize2":

==================================================
struct A
{
    ~A();
    void foo(double);
};

void bar()
{
    for ( int i=0; i<2; ++i )
    {
        A a;
        a.foo(0.5);
        a.foo(0.5);
    }
}
==================================================


The regression was introduced by the Zdenek's patch:

http://gcc.gnu.org/ml/gcc-cvs/2004-03/msg00455.html
http://gcc.gnu.org/ml/gcc-patches/2004-03/msg00772.html

Zdenek, could you please have a look?

-- 
           Summary: [lno] segfault when calling function twice in a loop
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,rakdver at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14658


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug optimization/14658] [lno] segfault when calling function twice in a loop
  2004-03-19 20:22 [Bug c++/14658] New: [lno] segfault when calling function twice in a loop reichelt at gcc dot gnu dot org
@ 2004-03-19 23:32 ` pinskia at gcc dot gnu dot org
  2004-03-19 23:34 ` pinskia at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-03-19 23:32 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |optimization
   Target Milestone|---                         |lno


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14658


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug optimization/14658] [lno] segfault when calling function twice in a loop
  2004-03-19 20:22 [Bug c++/14658] New: [lno] segfault when calling function twice in a loop reichelt at gcc dot gnu dot org
  2004-03-19 23:32 ` [Bug optimization/14658] " pinskia at gcc dot gnu dot org
@ 2004-03-19 23:34 ` pinskia at gcc dot gnu dot org
  2004-03-19 23:39 ` cvs-commit at gcc dot gnu dot org
  2004-03-19 23:43 ` rakdver at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-03-19 23:34 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unknown                     |lno


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14658


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug optimization/14658] [lno] segfault when calling function twice in a loop
  2004-03-19 20:22 [Bug c++/14658] New: [lno] segfault when calling function twice in a loop reichelt at gcc dot gnu dot org
  2004-03-19 23:32 ` [Bug optimization/14658] " pinskia at gcc dot gnu dot org
  2004-03-19 23:34 ` pinskia at gcc dot gnu dot org
@ 2004-03-19 23:39 ` cvs-commit at gcc dot gnu dot org
  2004-03-19 23:43 ` rakdver at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-03-19 23:39 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-19 23:39 -------
Subject: Bug 14658

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	lno-branch
Changes by:	rakdver@gcc.gnu.org	2004-03-19 23:39:19

Modified files:
	gcc            : ChangeLog.lno loop-invariant.c 

Log message:
	PR optimization/14658
	* loop-invariant.c (move_invariant_reg): Handle assignments
	with nontrivial lhs correctly.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.92&r2=1.1.2.93
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop-invariant.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.4.4&r2=1.1.4.5



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14658


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug optimization/14658] [lno] segfault when calling function twice in a loop
  2004-03-19 20:22 [Bug c++/14658] New: [lno] segfault when calling function twice in a loop reichelt at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2004-03-19 23:39 ` cvs-commit at gcc dot gnu dot org
@ 2004-03-19 23:43 ` rakdver at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2004-03-19 23:43 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From rakdver at gcc dot gnu dot org  2004-03-19 23:43 -------
Fixed by
http://gcc.gnu.org/ml/gcc-patches/2004-03/msg01646.html.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14658


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2004-03-19 23:43 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-03-19 20:22 [Bug c++/14658] New: [lno] segfault when calling function twice in a loop reichelt at gcc dot gnu dot org
2004-03-19 23:32 ` [Bug optimization/14658] " pinskia at gcc dot gnu dot org
2004-03-19 23:34 ` pinskia at gcc dot gnu dot org
2004-03-19 23:39 ` cvs-commit at gcc dot gnu dot org
2004-03-19 23:43 ` rakdver at gcc dot gnu dot org

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