[Bug target/106532] riscv fails to build enabling ZBA/ZBB/ZBC/ZBS by default for 32bit

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106532

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Shorter testcase (uninitialized variable is required for the reduced testcase;
I don't know why yet):
int g (long B_e)
{
        long A_e;
        if (A_e != 2047)
          A_e -= 1023;
        return A_e + 1;
}