[Bug middle-end/89889] worse code compared to clang with alloca()

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89889

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
#include <alloca.h>

void use(void*);

void compute()
{
    auto p = alloca(500);
    use(p);
}