https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99324
Bug ID: 99324
Summary: ICE in mark_addressable, at gimple-expr.c:918
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Affects versions down to r6, with missing ";" at /// :
$ cat z1.c
#include <stdarg.h>
void f (int x, ...)
{
va_list a;
va_arg (a, int);
int b () ///;
int c[va_arg (a, int)];
va_end (a);
return;
}
$ gcc-11-20210228 -c z1.c
z1.c: In function 'b':
z1.c:7:3: internal compiler error: Segmentation fault
7 | int c[va_arg (a, int)];
| ^~~
0xb5eeff crash_signal
../../gcc/toplev.c:327
0x8c6733 mark_addressable(tree_node*)
../../gcc/gimple-expr.c:918
0x6ce03c build_va_arg(unsigned int, tree_node*, tree_node*)
../../gcc/c-family/c-common.c:4630
0x6751b6 c_parser_postfix_expression
../../gcc/c/c-parser.c:9141
0x67e012 c_parser_unary_expression
../../gcc/c/c-parser.c:8224
0x67f03f c_parser_cast_expression
../../gcc/c/c-parser.c:8066
0x67f2f9 c_parser_binary_expression
../../gcc/c/c-parser.c:7869
0x680305 c_parser_conditional_expression
../../gcc/c/c-parser.c:7592
0x680861 c_parser_expr_no_commas
../../gcc/c/c-parser.c:7507
0x67d1f6 c_parser_direct_declarator_inner
../../gcc/c/c-parser.c:4095
0x694483 c_parser_declaration_or_fndef
../../gcc/c/c-parser.c:2148
0x695709 c_parser_declaration_or_fndef
../../gcc/c/c-parser.c:2498
0x693bb9 c_parser_compound_statement_nostart
../../gcc/c/c-parser.c:5700
0x693ff3 c_parser_compound_statement
../../gcc/c/c-parser.c:5597
0x6958a8 c_parser_declaration_or_fndef
../../gcc/c/c-parser.c:2539
0x69c717 c_parser_external_declaration
../../gcc/c/c-parser.c:1777
0x69d239 c_parser_translation_unit
../../gcc/c/c-parser.c:1650
0x69d239 c_parse_file()
../../gcc/c/c-parser.c:21984
0x6ed0a2 c_common_parse_file()
../../gcc/c-family/c-opts.c:1218
