[Bug tree-optimization/19833] New: bogus uninitialized variable warning for powerpc64

[Bug tree-optimization/19833] New: bogus uninitialized variable warning for powerpc64

[janis at gcc dot gnu dot org]

Test gcc.dg/uninit-4.c has failed on powerpc64-unknown-linux-gnu with -m64
since 2004-12-17 for a bogus uninitialized variable warning.  No other target
for which test results have been reported for the last few days gets this
failure.  The change is with this patch:
                                                                               
                
2004-12-17  Diego Novillo  <dnovillo@redhat.com>
                                                                               
                
        tree-optimization/18501
        * tree-optimize.c (init_tree_optimization_passes): Run
        pass_late_warn_uninitialized before the last DCE run.
                                                                               
                
The following testsuite changes were made at the same time:
                                                                               
                
2004-12-17  Diego Novillo  <dnovillo@redhat.com>
                                                                               
                
        * gcc.dg/pr18501.c: New test.
        * gcc.dg/uninit-5.c: XFAIL.
        * gcc.dg/uninit-9.c: XFAIL.
                                                                               
                
This is probably low priority, but I wanted a PR to reference when I mark
uninit-4.c XFAIL for { powerpc64*-*-* && lp64 }.  (The new XFAILs for the
other tests don't have such references to PRs.)

-- 
           Summary: bogus uninitialized variable warning for powerpc64
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-08 23:57 -------
It also fails on powerpc-darwin with -m64 too.  So maybe xfailing it for powerpc*-*-* && lp64 would 
be a better idea.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
 GCC target triplet|powerpc64-unknown-linux-gnu |powerpc64-*-*
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2005-02-08 23:57:28
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[janis at gcc dot gnu dot org]

------- Additional Comments From janis at gcc dot gnu dot org  2005-05-24 23:02 -------
Diego, can this PR be closed as fixed?

Test gcc.dg/uninit-4.c started to XPASS with this patch from dnovillo:

    http://gcc.gnu.org/ml/gcc-cvs/2005-05/msg00529.html

On the same day, test uninit-9.c also started to XPASS on:

  hppa2.0w-hp-hpux11.11
  hppa2.0w-hp-hpux11.*
  hppa64-hp-hpux11.*
  i686-pc-cygwin
  i686-pc-linux-gnu
  ia64-unknown-linux-gnu
  mips-sgi-irix6.5
  powerpc64-unknown-linux-gnu
  powerpc-apple-darwin7.4.0
  powerpc-ibm-aix5.2.0.0
  s390-ibm-linux-gnu
  x86_64-unknown-linux-gnu

I'd like to remove the xfail for these two tests and close this PR.



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dnovillo at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[dnovillo at redhat dot com]

------- Additional Comments From dnovillo at redhat dot com  2005-05-24 23:06 -------
Subject: Re:  bogus uninitialized variable warning for powerpc64

On Tue, May 24, 2005 at 11:02:09PM -0000, janis at gcc dot gnu dot org wrote:

> Diego, can this PR be closed as fixed?
> 
Yes.  Apologies for not having done this before.  The
uninitialized warning machinery needs to be re-designed, though.
Right now, we are at the mercy of whether certain passes were
done in some specific order.


Diego.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-24 23:42 -------
Subject: Bug 19833

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	janis@gcc.gnu.org	2005-05-24 23:41:53

Modified files:
	gcc/testsuite/gcc.dg: uninit-4.c uninit-9.c 
	gcc/testsuite  : ChangeLog 

Log message:
	20005-05-24  Janis Johnson  <janis187@us.ibm.com>
	
	PR tree-optimization/19833
	gcc.dg/uninit-4.c: Remove xfail.
	gcc.dg/uninit-9.c: Ditto.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/uninit-4.c.diff?cvsroot=gcc&r1=1.5&r2=1.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/uninit-9.c.diff?cvsroot=gcc&r1=1.4&r2=1.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5517&r2=1.5518



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[janis at gcc dot gnu dot org]

------- Additional Comments From janis at gcc dot gnu dot org  2005-05-25 22:38 -------
Diego fixed the bug, I removed the xfails.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |janis at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-05-10 19:16:12         |2005-05-25 22:38:34
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[janis at gcc dot gnu dot org]

------- Additional Comments From janis at gcc dot gnu dot org  2005-05-25 22:39 -------
Closing the bug.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833

[Bug tree-optimization/19833] bogus uninitialized variable warning for powerpc64

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19833