https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109409
Bug ID: 109409
Summary: [13 Regression] ICE in check_format_arg, at
c-family/c-format.cc:1777
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20220821 and 20220828, with -Wall :
$ cat z1.c
int g ();
void f (char *a)
{
const char c[g()] = "1";
__builtin_sprintf (a, c);
}
$ gcc-13-20230402 -c z1.c -Wall
z1.c: In function 'f':
z1.c:4:23: error: variable-sized object may not be initialized except with an
empty initializer
4 | const char c[g()] = "1";
| ^~~
z1.c:5:3: internal compiler error: in check_format_arg, at
c-family/c-format.cc:1777
5 | __builtin_sprintf (a, c);
| ^~~~~~~~~~~~~~~~~
0x83216a check_format_arg
../../gcc/c-family/c-format.cc:1777
0x82d680 check_format_info
../../gcc/c-family/c-format.cc:1543
0x82d680 check_function_format(tree_node const*, tree_node*, int, tree_node**,
vec<unsigned int, va_heap, vl_ptr>*)
../../gcc/c-family/c-format.cc:1198
0x81a3e5 check_function_arguments(unsigned int, tree_node const*, tree_node
const*, int, tree_node**, vec<unsigned int, va_heap, vl_ptr>*)
../../gcc/c-family/c-common.cc:6093
0x775e4d build_function_call_vec(unsigned int, vec<unsigned int, va_heap,
vl_ptr>, tree_node*, vec<tree_node*, va_gc, vl_embed>*, vec<tree_node*, va_gc,
vl_embed>*, tree_node*)
../../gcc/c/c-typeck.cc:3309
0x7a6d01 c_parser_postfix_expression_after_primary
../../gcc/c/c-parser.cc:11239
0x79461d c_parser_postfix_expression
../../gcc/c/c-parser.cc:10846
0x7a17ba c_parser_unary_expression
../../gcc/c/c-parser.cc:8831
0x7a2b1f c_parser_cast_expression
../../gcc/c/c-parser.cc:8672
0x7a2e1b c_parser_binary_expression
../../gcc/c/c-parser.cc:8440
0x7a44eb c_parser_conditional_expression
../../gcc/c/c-parser.cc:8138
0x7a4d74 c_parser_expr_no_commas
../../gcc/c/c-parser.cc:8052
0x7a5022 c_parser_expression
../../gcc/c/c-parser.cc:11379
0x7a57db c_parser_expression_conv
../../gcc/c/c-parser.cc:11419
0x7c01f3 c_parser_statement_after_labels
../../gcc/c/c-parser.cc:6781
0x7c24db c_parser_compound_statement_nostart
../../gcc/c/c-parser.cc:6296
0x7c2d83 c_parser_compound_statement
../../gcc/c/c-parser.cc:6105
0x7c4d7f c_parser_declaration_or_fndef
../../gcc/c/c-parser.cc:2841
0x7cf0af c_parser_external_declaration
../../gcc/c/c-parser.cc:1925
0x7cf9ed c_parser_translation_unit
../../gcc/c/c-parser.cc:1779
