[Bug target/96566] [nvptx] Timeout in gcc.dg/builtin-object-size-21.c

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96566

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
Corresponding source bit:
...
struct Ax_m3 { char a[PTRDIFF_MAX - 3], ax[]; };

struct Ax_m3 xm3_3 = { { 0 }, { 1, 2, 3 } };
....

On x86_64, we generate for this:
...
xm3_3:
        .byte   0
        .zero   9223372036854775803
        .byte   1
        .byte   2
        .byte   3
...
where 9223372036854775803 is 0x7FFFFFFFFFFFFFFB.