[Bug tree-optimization/44914] New: [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[Bug tree-optimization/44914] New: [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[zsojka at seznam dot cz]

Command line:
$ gcc -O[123s] -fipa-sra -fnon-call-exceptions testcase.C

Compiler output:
$ gcc -O1 -fipa-sra -fnon-call-exceptions testcase.C 
testcase.C: In function 'B::B(int)':
testcase.C:17:4: internal compiler error: in calc_dfs_tree, at dominance.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r162056 - crash
r161170 - crash
r159696 - OK
r158969 - OK
4.5 r160526 - OK


-- 
           Summary: [4.6 Regression] ICE: in calc_dfs_tree, at
                    dominance.c:395 with -fipa-sra -fnon-call-exceptions
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-07-11 22:55 -------
Created an attachment (id=21181)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21181&action=view)
reduced testcase

Command line:
$ gcc -O1 -fipa-sra -fnon-call-exceptions pr44914.C


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[steven at gcc dot gnu dot org]

------- Comment #2 from steven at gcc dot gnu dot org  2010-07-11 22:56 -------
Martin, SRA related => yours?


-- 

steven at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #3 from jamborm at gcc dot gnu dot org  2010-07-22 15:25 -------
I have a fix.


-- 

jamborm at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jamborm at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-07-22 15:25:08
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #4 from jamborm at gcc dot gnu dot org  2010-07-22 18:07 -------
I have submitted a proposed fix to the mailing list:

http://gcc.gnu.org/ml/gcc-patches/2010-07/msg01760.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #5 from jamborm at gcc dot gnu dot org  2010-07-23 16:32 -------
Subject: Bug 44914

Author: jamborm
Date: Fri Jul 23 16:31:48 2010
New Revision: 162468

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162468
Log:
2010-07-23  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/44914
        * tree-sra.c (sra_modify_function_body): Return true if CFG was
        changed, add purging dead eh edges.
        (ipa_sra_modify_function_body): Return true if CFG was changed,
        simplify purging dead eh edges.
        (modify_function): Return true if CFG was changed.
        (perform_intra_sra): Add TODO_cleanup_cfg to the return value if CFG
        was changed.
        (ipa_early_sra): Likewise.

        * testsuite/g++.dg/tree-ssa/pr44914.C:  New test.


Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr44914.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-sra.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[arekm at pld-linux dot org]

------- Comment #6 from arekm at pld-linux dot org  2010-08-01 18:33 -------
Is there a patch for 4.5.1 for this somewhere? I'm hitting this issue at gcc
4.5.1 java boostrap (#45154)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #7 from jamborm at gcc dot gnu dot org  2010-08-02 13:28 -------
(In reply to comment #6)
> Is there a patch for 4.5.1 for this somewhere? I'm hitting this issue at gcc
> 4.5.1 java boostrap (#45154)
> 

The patch is really the same.  I did not commit it because the branch
was frozen for the release of 4.5.1.  I'm re-testing it on the branch
now and hopefully will commit it today.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #8 from jamborm at gcc dot gnu dot org  2010-08-02 17:40 -------
(In reply to comment #7)
> 
> The patch is really the same.  I did not commit it because the branch
> was frozen for the release of 4.5.1.  I'm re-testing it on the branch
> now and hopefully will commit it today.
> 

Actually no, the patch must be slightly different because
scan_function() is not split into multiple functions in 4.5... but
along the same lines.  I'll prepare it, hopefully today.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #9 from jamborm at gcc dot gnu dot org  2010-08-03 09:53 -------
Subject: Bug 44914

Author: jamborm
Date: Tue Aug  3 09:52:46 2010
New Revision: 162839

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162839
Log:
2010-08-03  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/44914
        * tree-sra.c (cfg_changed): New variable.
        (sra_initialize): Initialize cgf_changed to false.
        (scan_function): Set cfg_changed if cfg was changed.
        (perform_intra_sra): Return also TODO_cleanup_cfg if cfg was changed.
        (ipa_early_sra): Likewise.

        * testsuite/g++.dg/tree-ssa/pr44914.C: New test.


Added:
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/tree-ssa/pr44914.C
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-sra.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[jamborm at gcc dot gnu dot org]

------- Comment #10 from jamborm at gcc dot gnu dot org  2010-08-03 12:11 -------
Fixed.


-- 

jamborm at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914

[Bug tree-optimization/44914] [4.6 Regression] ICE: in calc_dfs_tree, at dominance.c:395 with -fipa-sra -fnon-call-exceptions

[pluto at agmk dot net]

------- Comment #11 from pluto at agmk dot net  2010-08-03 12:58 -------
*** Bug 45154 has been marked as a duplicate of this bug. ***


-- 

pluto at agmk dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pluto at agmk dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44914