[Bug c++/28250] [4.2 regression] ICE with invalid catch

["reichelt at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from reichelt at gcc dot gnu dot org  2006-07-21 10:05 -------
Alas there's some fallout from the fix.
The first issue has been fixed (see comment #5 and #7), another problem
remains, though (see also comment #6): 

====================
  void foo()
  {
    try { throw; }
    catch () {}
  }
====================

bug.cc: In function 'void foo()':
bug.cc:4: error: expected type-specifier before ')' token
bug.cc:4: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]

The sefault happens deep in the middle-end:

  #0  remove_useless_stmts_1 (tp=0x2aaaaaf831f0, data=0x7fffffd8b670)
      at tree-iterator.h:93
  #1  0x0000000000546aa4 in remove_useless_stmts_1 (tp=<value optimized out>, 
      data=0x7fffffd8b670) at ../../gcc/gcc/tree-cfg.c:1915
  #2  0x0000000000546b55 in remove_useless_stmts_1 (tp=0x2aaaaaf7bf90, 
      data=0x7fffffd8b670) at ../../gcc/gcc/tree-cfg.c:1741
  #3  0x000000000054775d in remove_useless_stmts ()
      at ../../gcc/gcc/tree-cfg.c:1949
  #4  0x00000000008981ae in execute_one_pass (pass=0xc78700)
      at ../../gcc/gcc/passes.c:864
  #5  0x000000000089831c in execute_pass_list (pass=0xc78700)
      at ../../gcc/gcc/passes.c:911
  #6  0x000000000055f359 in tree_lowering_passes (fn=<value optimized out>)
      at ../../gcc/gcc/tree-optimize.c:324
  #7  0x00000000008e7a78 in cgraph_lower_function (node=0x2aaaaaf7d790)
      at ../../gcc/gcc/cgraphunit.c:448
  #8  0x00000000008e8697 in cgraph_analyze_function (node=0x2aaaaaf7d790)
      at ../../gcc/gcc/cgraphunit.c:919


-- 

reichelt at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28250