[Bug tree-optimization/22234] New: verify_ssa failed with -fno-exceptions

[Bug tree-optimization/22234] New: verify_ssa failed with -fno-exceptions

[falk at debian dot org]

falk@juist:/tmp% g++ -c -O2 -fno-exceptions nsPlaintextEditor.ii   
nsPlaintextEditor.ii: In member function 'nsresult
nsPlaintextEditor::InsertLineBreak()':
nsPlaintextEditor.ii:151: error: Definition in block 13 does not dominate use in
block 14
for SSA_NAME: TMT.43_70 in statement:
TMT.43_173 = PHI <TMT.43_70(14), TMT.43_70(15)>;
PHI argument
TMT.43_70
for PHI node
TMT.43_173 = PHI <TMT.43_70(14), TMT.43_70(15)>;
nsPlaintextEditor.ii:151: internal compiler error: verify_ssa failed.
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           Summary: verify_ssa failed with -fno-exceptions
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: falk at debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alphaev68-unknown-linux-gnu
  GCC host triplet: alphaev68-unknown-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] verify_ssa failed with -fno-exceptions

[falk at debian dot org]

------- Additional Comments From falk at debian dot org  2005-06-29 16:49 -------
Created an attachment (id=9173)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9173&action=view)
Test case (autoreduced)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-29 16:54 -------
This is most likely the same bug as the bug which is causing the bootstrap problem on powerpc-darwin 
and that testcase was hard to reduce.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
            Summary|verify_ssa failed with -fno-|[4.1 Regression] verify_ssa
                   |exceptions                  |failed with -fno-exceptions
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2005-06-29 17:56 -------
May also be the same as PR 22228... 
 
W. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-06-29 22:59 -------
Created an attachment (id=9176)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9176&action=view)
Shorter testcase (0.5 kB)

Crashes with "-O -fno-exceptions" on i686-pc-linux-gnu

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
Attachment #9173 is|0                           |1
           obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-29 23:06 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2005-06/msg02209.html> confirmed to fix the bug.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2005-
                   |                            |06/msg02209.html
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[reichelt at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |monitored
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-29 23:10:51
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-06-30 00:51 -------
Subject: Bug 22234

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dnovillo@gcc.gnu.org	2005-06-30 00:51:17

Modified files:
	gcc            : ChangeLog tree-ssa-copy.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20050629-1.c 

Log message:
	PR 22234
	* tree-ssa-copy.c (fini_copy_prop): Do not overwrite copy_of
	when following copy-of chains.
	
	testsuite/ChangeLog
	
	PR 22234
	* gcc.dg/20050629-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9286&r2=2.9287
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copy.c.diff?cvsroot=gcc&r1=2.35&r2=2.36
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5708&r2=1.5709
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20050629-1.c.diff?cvsroot=gcc&r1=1.1&r2=1.2



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234

[Bug tree-optimization/22234] [4.1 Regression] verify_ssa failed with -fno-exceptions

[dnovillo at gcc dot gnu dot org]

------- Additional Comments From dnovillo at gcc dot gnu dot org  2005-06-30 00:53 -------
Fixed.  http://gcc.gnu.org/ml/gcc-patches/2005-06/msg02209.html

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22234