[Bug middle-end/40043] New: [4.5 Regression] ICE with nested try/catch

[Bug middle-end/40043] New: [4.5 Regression] ICE with nested try/catch

[reichelt at gcc dot gnu dot org]

The following valid testcase triggers an ICE on trunk when compiled with "-O":

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

void bar()
{
  A a;

  try
  {
    A b;

    try
    {
      b.foo();
    }
    catch (int) {}
  }
  catch (int) {}
}
===========================

bug.cc: In function 'void bar()':
bug.cc:7: error: EH edge 2->21 is missing
bug.cc:7: error: unnecessary EH edge 2->10
bug.cc:7: internal compiler error: verify_flow_info failed
Please submit a full bug report, [etc.]

The bug might be related to PR39862.


-- 
           Summary: [4.5 Regression] ICE with nested try/catch
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043

[Bug middle-end/40043] [4.5 Regression] ICE with nested try/catch

[reichelt at gcc dot gnu dot org]

-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.0
            Version|unknown                     |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043

[Bug middle-end/40043] [4.5 Regression] ICE with nested try/catch

[hubicka at gcc dot gnu dot org]

------- Comment #1 from hubicka at gcc dot gnu dot org  2009-05-09 10:52 -------
Subject: Bug 40043

Author: hubicka
Date: Sat May  9 10:52:24 2009
New Revision: 147317

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147317
Log:

        * g++.dg/eh/nested-try.C: New test.

        PR middle-end/40043
        * except.c (copy_eh_region): Always set prev_try.
        (redirect_eh_edge_to_label): Find outer try.
        (foreach_reachable_handler): When looking for prev try
        handle case where previous try is not going to be taken.

Added:
    trunk/gcc/testsuite/g++.dg/eh/nested-try.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/except.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043

[Bug middle-end/40043] [4.5 Regression] ICE with nested try/catch

[hjl at gcc dot gnu dot org]

------- Comment #2 from hjl at gcc dot gnu dot org  2009-05-11 16:49 -------
Subject: Bug 40043

Author: hjl
Date: Mon May 11 16:49:17 2009
New Revision: 147390

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147390
Log:
2009-05-11  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2009-05-11  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/40080
        * gcc.c-torture/compile/pr40080.c: New.

        2009-05-11  Paolo Bonzini  <bonzini@gnu.org>

        * gcc.c-torture/compile/pr40026.c: New testcase.

        2009-05-09  Jan Hubicka  <jh@suse.cz>

        PR middle-end/40043
        * g++.dg/eh/nested-try.C: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/eh/nested-try.C
      - copied unchanged from r147389,
trunk/gcc/testsuite/g++.dg/eh/nested-try.C
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr40026.c
      - copied unchanged from r147389,
trunk/gcc/testsuite/gcc.c-torture/compile/pr40026.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr40080.c
      - copied unchanged from r147389,
trunk/gcc/testsuite/gcc.c-torture/compile/pr40080.c
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043

[Bug middle-end/40043] [4.5 Regression] ICE with nested try/catch

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2009-05-11 17:22 -------
*** Bug 40100 has been marked as a duplicate of this bug. ***


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043

[Bug middle-end/40043] [4.5 Regression] ICE with nested try/catch

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2009-05-11 17:23 -------
Fixed.


-- 

hjl dot tools at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40043