[Bug rtl-optimization/16014] [3.5 Regression] ICE in label_for_bb at cfglayout.c:175

["belyshev at lubercy dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From belyshev at lubercy dot com  2004-06-16 09:42 -------
small testcase, use '-O2':
-------------------------------------------------------------------------------
struct tree_node
{
  unsigned long low;
  long high;
};

int
host_integerp (struct tree_node *t, int pos, int code)
{
  return (code == 1
	  && (((t)->high == 0
	       &&  (long)((t)->low) >= 0)
	      || (!pos && ((t)->high) == -1)
	      || (pos && ((t)->high) == 0))
	  );
}
-------------------------------------------------------------------------------
Program received signal SIGSEGV, Segmentation fault.
label_for_bb (bb=0x40530934) at ../../gcc/gcc/cfglayout.c:175
175       if (GET_CODE (label) != CODE_LABEL)
(gdb) where
#0  label_for_bb (bb=0x40530934) at ../../gcc/gcc/cfglayout.c:175
#1  0x0815c904 in fixup_reorder_chain () at ../../gcc/gcc/cfglayout.c:712
#2  0x0815d4fb in cfg_layout_finalize () at ../../gcc/gcc/cfglayout.c:1213
#3  0x0834ae25 in reorder_basic_blocks () at ../../gcc/gcc/bb-reorder.c:1962
#4  0x0832b0ef in rest_of_handle_reorder_blocks (decl=0x405261f0, insns=0x40458630)
    at ../../gcc/gcc/passes.c:754
#5  0x0832d03f in rest_of_compilation () at ../../gcc/gcc/passes.c:1882
#6  0x080ce092 in execute_one_pass (pass=0x8553e80) at
../../gcc/gcc/tree-optimize.c:421
#7  0x080ce101 in execute_pass_list (pass=0x8553e80) at
../../gcc/gcc/tree-optimize.c:446
#8  0x080ce2d1 in tree_rest_of_compilation (fndecl=0x405261f0, nested_p=0 '\0')
    at ../../gcc/gcc/tree-optimize.c:523
#9  0x080653bb in c_expand_body (fndecl=0x405261f0) at ../../gcc/gcc/c-decl.c:6335
#10 0x08346895 in cgraph_expand_function (node=0x4052683c) at
../../gcc/gcc/cgraphunit.c:794
#11 0x08348203 in cgraph_expand_all_functions () at ../../gcc/gcc/cgraphunit.c:1668
#12 0x083484e5 in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1758
#13 0x080a219c in c_objc_common_finish_file () at ../../gcc/gcc/c-objc-common.c:230
#14 0x08051e27 in finish_file () at ../../gcc/gcc/c-lang.c:210
#15 0x0809a07a in c_common_parse_file (set_yydebug=0) at ../../gcc/gcc/c-opts.c:1241
#16 0x082fbefe in compile_file () at ../../gcc/gcc/toplev.c:960
#17 0x082fd68e in do_compile () at ../../gcc/gcc/toplev.c:2022
#18 0x082fd6ec in toplev_main (argc=0, argv=0xbffff934) at
../../gcc/gcc/toplev.c:2054
#19 0x080b0844 in main (argc=0, argv=0x0) at ../../gcc/gcc/main.c:35

Confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
  GCC build triplet|ia64-unknown-linux-gnu      |
   GCC host triplet|ia64-unknown-linux-gnu      |
   Last reconfirmed|0000-00-00 00:00:00         |2004-06-16 09:42:18
               date|                            |
            Summary|[3.5 Regression] ICE in     |[3.5 Regression] ICE in
                   |host_integerp               |label_for_bb at
                   |                            |cfglayout.c:175


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16014