https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89341
Bug ID: 89341
Summary: ICE in get, at cgraph.h:1332
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
With option -O0 down to at least gcc-5 :
$ cat z1.c
__attribute__((weakref("bar")))
static void foo () { }
void foo ();
$ gcc-9-20190210 -c z1.c -O1
$
$ gcc-9-20190210 -c z1.c -O0
z1.c:2:13: internal compiler error: Segmentation fault
2 | static void foo () { }
| ^~~
0xa8aa9f crash_signal
../../gcc/toplev.c:326
0x70c90a cgraph_node* dyn_cast<cgraph_node*, symtab_node>(symtab_node*)
../../gcc/is-a.h:227
0x70c90a cgraph_node::get(tree_node const*)
../../gcc/cgraph.h:1333
0x70c90a cgraph_node::analyze()
../../gcc/cgraphunit.c:640
0x70f457 analyze_functions
../../gcc/cgraphunit.c:1126
0x70fd92 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2834
