Commit 02616bad authored by Richard Henderson's avatar Richard Henderson
Browse files

tcg: Use deposit and extract2 in tcg_gen_shifti_i64 



Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent fce1296f

tcg/tcg-op.c

+22 −21
Original line number Diff line number Diff line
@@ -1355,31 +1355,32 @@ static inline void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1, 
            tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_LOW(arg1), c);

            tcg_gen_movi_i32(TCGV_LOW(ret), 0);

        }

    } else if (right) {

        if (TCG_TARGET_HAS_extract2_i32) {

            tcg_gen_extract2_i32(TCGV_LOW(ret),

                                 TCGV_LOW(arg1), TCGV_HIGH(arg1), c);

        } else {

        TCGv_i32 t0, t1;



        t0 = tcg_temp_new_i32();

        t1 = tcg_temp_new_i32();

        if (right) {

            tcg_gen_shli_i32(t0, TCGV_HIGH(arg1), 32 - c);

            tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);

            tcg_gen_deposit_i32(TCGV_LOW(ret), TCGV_LOW(ret),

                                TCGV_HIGH(arg1), 32 - c, c);

        }

        if (arith) {

                tcg_gen_sari_i32(t1, TCGV_HIGH(arg1), c);

            tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);

        } else {

                tcg_gen_shri_i32(t1, TCGV_HIGH(arg1), c);

            tcg_gen_shri_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);

        }

            tcg_gen_shri_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);

            tcg_gen_or_i32(TCGV_LOW(ret), TCGV_LOW(ret), t0);

            tcg_gen_mov_i32(TCGV_HIGH(ret), t1);

    } else {

        if (TCG_TARGET_HAS_extract2_i32) {

            tcg_gen_extract2_i32(TCGV_HIGH(ret),

                                 TCGV_LOW(arg1), TCGV_HIGH(arg1), 32 - c);

        } else {

            TCGv_i32 t0 = tcg_temp_new_i32();

            tcg_gen_shri_i32(t0, TCGV_LOW(arg1), 32 - c);

            /* Note: ret can be the same as arg1, so we use t1 */

            tcg_gen_shli_i32(t1, TCGV_LOW(arg1), c);

            tcg_gen_shli_i32(TCGV_HIGH(ret), TCGV_HIGH(arg1), c);

            tcg_gen_or_i32(TCGV_HIGH(ret), TCGV_HIGH(ret), t0);

            tcg_gen_mov_i32(TCGV_LOW(ret), t1);

        }

            tcg_gen_deposit_i32(TCGV_HIGH(ret), t0,

                                TCGV_HIGH(arg1), c, 32 - c);

            tcg_temp_free_i32(t0);

        tcg_temp_free_i32(t1);

        }

        tcg_gen_shli_i32(TCGV_LOW(ret), TCGV_LOW(arg1), c);

    }

}