https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89911
Bug ID: 89911
Summary: [9 Regression] ICE in get_attr_nonstring_decl, at
calls.c:1502
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: ---
Changed between 20180610 and 20180624 :
$ cat z1.c
typedef __SIZE_TYPE__ size_t;
extern size_t strnlen ();
size_t foo ()
{
return strnlen ();
}
$ gcc-9-20180610 -c z1.c
$
$ gcc-9-20190331 -c z1.c
z1.c: In function 'foo':
z1.c:5:10: warning: too few arguments to built-in function 'strnlen' expecting
2 [-Wbuiltin-declaration-mismatch]
5 | return strnlen ();
| ^~~~~~~
z1.c:2:15: note: declared here
2 | extern size_t strnlen ();
| ^~~~~~~
during RTL pass: expand
z1.c:5:10: internal compiler error: Segmentation fault
5 | return strnlen ();
| ^~~~~~~~~~
0xa748df crash_signal
../../gcc/toplev.c:326
0x6b02b1 get_attr_nonstring_decl(tree_node*, tree_node**)
../../gcc/calls.c:1502
0x6b23f9 maybe_warn_nonstring_arg(tree_node*, tree_node*)
../../gcc/calls.c:1615
0x6b7270 initialize_argument_information
../../gcc/calls.c:2209
0x6b7270 expand_call(tree_node*, rtx_def*, int)
../../gcc/calls.c:3589
0x6a6454 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
../../gcc/builtins.c:7233
0x7bd01e expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/expr.c:11029
0x7c71b6 store_expr(tree_node*, rtx_def*, int, bool, bool)
../../gcc/expr.c:5673
0x7c7f8e expand_assignment(tree_node*, tree_node*, bool)
../../gcc/expr.c:5436
0x6c6b50 expand_call_stmt
../../gcc/cfgexpand.c:2722
0x6c6b50 expand_gimple_stmt_1
../../gcc/cfgexpand.c:3691
0x6c6b50 expand_gimple_stmt
../../gcc/cfgexpand.c:3850
0x6cba07 expand_gimple_basic_block
../../gcc/cfgexpand.c:5886
0x6ce096 execute
../../gcc/cfgexpand.c:6509
