diff options
| -rw-r--r-- | target/arm/tcg/translate-a64.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 082a8b8..dff391b 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -12003,22 +12003,26 @@ static void handle_rev(DisasContext *s, int opcode, bool u, int esize = 8 << size; int elements = dsize / esize; TCGv_i64 tcg_rn = tcg_temp_new_i64(); - TCGv_i64 tcg_rd = tcg_const_i64(0); - TCGv_i64 tcg_rd_hi = tcg_const_i64(0); + TCGv_i64 tcg_rd[2]; + + for (i = 0; i < 2; i++) { + tcg_rd[i] = tcg_temp_new_i64(); + tcg_gen_movi_i64(tcg_rd[i], 0); + } for (i = 0; i < elements; i++) { int e_rev = (i & 0xf) ^ revmask; - int off = e_rev * esize; + int w = (e_rev * esize) / 64; + int o = (e_rev * esize) % 64; + read_vec_element(s, tcg_rn, rn, i, size); - if (off >= 64) { - tcg_gen_deposit_i64(tcg_rd_hi, tcg_rd_hi, - tcg_rn, off - 64, esize); - } else { - tcg_gen_deposit_i64(tcg_rd, tcg_rd, tcg_rn, off, esize); - } + tcg_gen_deposit_i64(tcg_rd[w], tcg_rd[w], tcg_rn, o, esize); + } + + for (i = 0; i < 2; i++) { + write_vec_element(s, tcg_rd[i], rd, i, MO_64); } - write_vec_element(s, tcg_rd, rd, 0, MO_64); - write_vec_element(s, tcg_rd_hi, rd, 1, MO_64); + clear_vec_high(s, true, rd); } } |