Commit b2565c69 authored by Edgar E. Iglesias's avatar Edgar E. Iglesias Committed by Edgar E. Iglesias
Browse files

microblaze: Use setcond for conditional branches 



Use setcond for evaluating the condition for branches.
In the future, we could do better for branches without
delay slots.

Signed-off-by: default avatarEdgar E. Iglesias <edgar.iglesias@petalogix.com>
parent 61204ce8

target-microblaze/translate.c

+6 −32
Original line number Diff line number Diff line
@@ -912,50 +912,24 @@ static void dec_store(DisasContext *dc) 
static inline void eval_cc(DisasContext *dc, unsigned int cc,

                           TCGv d, TCGv a, TCGv b)

{

    int l1;



    switch (cc) {

        case CC_EQ:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_EQ, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_EQ, d, a, b);

            break;

        case CC_NE:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_NE, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_NE, d, a, b);

            break;

        case CC_LT:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_LT, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_LT, d, a, b);

            break;

        case CC_LE:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_LE, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_LE, d, a, b);

            break;

        case CC_GE:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_GE, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_GE, d, a, b);

            break;

        case CC_GT:

            l1 = gen_new_label();

            tcg_gen_movi_tl(env_btaken, 1);

            tcg_gen_brcond_tl(TCG_COND_GT, a, b, l1);

            tcg_gen_movi_tl(env_btaken, 0);

            gen_set_label(l1);

            tcg_gen_setcond_tl(TCG_COND_GT, d, a, b);

            break;

        default:

            cpu_abort(dc->env, "Unknown condition code %x.\n", cc);