https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109828
--- Comment #2 from Yann Droneaud <yann at droneaud dot fr> ---
(In reply to Yann Droneaud from comment #0)
> The following code is badly compiled by GCC 13.1:
>
> struct s { int i; char c[]; };
>
> const struct s s = { .c = "0", };
> const struct s *r = &(constexpr struct s) { .c = "1", };
> const struct s *t = &(static struct s) { .c = "2", };
>
> Targetting x86-64 / amd64, compiling this with gcc -std=gnu2x -S, produces
> surprising large .zero directive:
>
> s:
> .zero 4
> .string "0"
> __compound_literal.0:
> .zero 4
> .string "1"
> .zero 18446744073709551613
> .zero 1
> r:
> .quad __compound_literal.0
> __compound_literal.1:
> .zero 4
> .string "2"
> .zero 18446744073709551613
> .zero 1
> t:
> .quad __compound_literal.1
>
>
When asked to assemble that, binutils' as complains:
$ gcc -std=gnu2x nice.c -c
/tmp/ccZEWv73.s: Assembler messages:
/tmp/ccZEWv73.s:17: Warning: .space repeat count is zero, ignored
/tmp/ccZEWv73.s:32: Warning: .space repeat count is zero, ignored
