[Bug gcov-profile/78582] New: [7 Regression] ICE in walk_stmt_load_store_addr_ops with -fprofile-generate

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78582

            Bug ID: 78582
           Summary: [7 Regression] ICE in walk_stmt_load_store_addr_ops
                    with -fprofile-generate
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

Started by my commit r241821:

$ cat ice.i
int a;
void main (argc, argv, env) int argc;
char argv, env;
{
  __sigsetjmp ();
  argc = a = argc;
  reader_loop ();
}

$ gcc -fprofile-generate ice.i
ice.i: In function ‘main’:
ice.i:5:3: warning: implicit declaration of function ‘__sigsetjmp’; did you
mean ‘__builtin_setjmp’? [-Wimplicit-function-declaration]
   __sigsetjmp ();
   ^~~~~~~~~~~
   __builtin_setjmp
ice.i:7:3: warning: implicit declaration of function ‘reader_loop’
[-Wimplicit-function-declaration]
   reader_loop ();
   ^~~~~~~~~~~
ice.i:8:1: internal compiler error: Segmentation fault
 }
 ^
0xf0a488 crash_signal
        ../../gcc/toplev.c:333
0xba9263 walk_stmt_load_store_addr_ops(gimple*, void*, bool (*)(gimple*,
tree_node*, tree_node*, void*), bool (*)(gimple*, tree_node*, tree_node*,
void*), bool (*)(gimple*, tree_node*, tree_node*, void*))
        ../../gcc/gimple-walk.c:915
0x9c872b cgraph_node::record_stmt_references(gimple*)
        ../../gcc/cgraphbuild.c:277
0x9c8f54 cgraph_edge::rebuild_edges()
        ../../gcc/cgraphbuild.c:445
0x1026003 tree_profiling
        ../../gcc/tree-profile.c:714
0x1026088 execute
        ../../gcc/tree-profile.c:749