Implement with and without Zicond. Without Zicond, we were letting
the middle-end expand to a 5 insn sequence; better to use a branch
over a single insn.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
a18d783e64