Use the same mask to avoid having to load two different constants, as suggest by Richard Henderson. Also use one less temp.
Signed-off-by: Aurelien Jarno <aurel...@aurel32.net> --- target/cris/translate.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/target/cris/translate.c b/target/cris/translate.c index 0ee05ca02d..103b214233 100644 --- a/target/cris/translate.c +++ b/target/cris/translate.c @@ -433,20 +433,19 @@ static inline void t_gen_subx_carry(DisasContext *dc, TCGv d) T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff) */ static inline void t_gen_swapb(TCGv d, TCGv s) { - TCGv t, org_s; + TCGv t, m; t = tcg_temp_new(); - org_s = tcg_temp_new(); + m = tcg_const_tl(0x00ff00ff); /* d and s may refer to the same object. */ - tcg_gen_mov_tl(org_s, s); - tcg_gen_shli_tl(t, org_s, 8); - tcg_gen_andi_tl(d, t, 0xff00ff00); - tcg_gen_shri_tl(t, org_s, 8); - tcg_gen_andi_tl(t, t, 0x00ff00ff); + tcg_gen_shri_tl(t, s, 8); + tcg_gen_and_tl(t, t, m); + tcg_gen_and_tl(d, s, m); + tcg_gen_shli_tl(d, d, 8); tcg_gen_or_tl(d, d, t); + tcg_temp_free(m); tcg_temp_free(t); - tcg_temp_free(org_s); } /* Swap the halfwords of the s operand. */ -- 2.11.0