TEST_RR_OP( 19, sll, 0x0000001090909080, 0x0000000021212121, 0xffffffffffffffc7 );
TEST_RR_OP( 20, sll, 0x0000084848484000, 0x0000000021212121, 0xffffffffffffffce );
-#ifdef __riscv64
+#if __riscv_xlen == 64
TEST_RR_OP( 21, sll, 0x8000000000000000, 0x0000000021212121, 0xffffffffffffffff );
TEST_RR_OP( 50, sll, 0x8000000000000000, 0x0000000000000001, 63 );
TEST_RR_OP( 51, sll, 0xffffff8000000000, 0xffffffffffffffff, 39 );