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| author | Richard Henderson <richard.henderson@linaro.org> | 2019-04-17 13:53:02 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-05-13 22:52:08 +0000 |
| commit | bcefc90208f8a1d6f619d61c2647281d92277015 (patch) | |
| tree | ad254d47c251efac0d22503aa975127a6aedc2e7 /tcg/tcg-op-vec.c | |
| parent | ff1f11f7f8710a768f9313f24bd7f509d3db27e5 (diff) | |
| download | focaccia-qemu-bcefc90208f8a1d6f619d61c2647281d92277015.tar.gz focaccia-qemu-bcefc90208f8a1d6f619d61c2647281d92277015.zip | |
tcg: Add support for vector absolute value
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op-vec.c')
| -rw-r--r-- | tcg/tcg-op-vec.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tcg/tcg-op-vec.c b/tcg/tcg-op-vec.c index 16062f5995..543508d545 100644 --- a/tcg/tcg-op-vec.c +++ b/tcg/tcg-op-vec.c @@ -110,6 +110,14 @@ bool tcg_can_emit_vecop_list(const TCGOpcode *list, continue; } break; + case INDEX_op_abs_vec: + if (tcg_can_emit_vec_op(INDEX_op_sub_vec, type, vece) + && (tcg_can_emit_vec_op(INDEX_op_smax_vec, type, vece) > 0 + || tcg_can_emit_vec_op(INDEX_op_sari_vec, type, vece) > 0 + || tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece))) { + continue; + } + break; default: break; } @@ -429,6 +437,37 @@ void tcg_gen_neg_vec(unsigned vece, TCGv_vec r, TCGv_vec a) tcg_swap_vecop_list(hold_list); } +void tcg_gen_abs_vec(unsigned vece, TCGv_vec r, TCGv_vec a) +{ + const TCGOpcode *hold_list; + + tcg_assert_listed_vecop(INDEX_op_abs_vec); + hold_list = tcg_swap_vecop_list(NULL); + + if (!do_op2(vece, r, a, INDEX_op_abs_vec)) { + TCGType type = tcgv_vec_temp(r)->base_type; + TCGv_vec t = tcg_temp_new_vec(type); + + tcg_debug_assert(tcg_can_emit_vec_op(INDEX_op_sub_vec, type, vece)); + if (tcg_can_emit_vec_op(INDEX_op_smax_vec, type, vece) > 0) { + tcg_gen_neg_vec(vece, t, a); + tcg_gen_smax_vec(vece, r, a, t); + } else { + if (tcg_can_emit_vec_op(INDEX_op_sari_vec, type, vece) > 0) { + tcg_gen_sari_vec(vece, t, a, (8 << vece) - 1); + } else { + do_dupi_vec(t, MO_REG, 0); + tcg_gen_cmp_vec(TCG_COND_LT, vece, t, a, t); + } + tcg_gen_xor_vec(vece, r, a, t); + tcg_gen_sub_vec(vece, r, r, t); + } + + tcg_temp_free_vec(t); + } + tcg_swap_vecop_list(hold_list); +} + static void do_shifti(TCGOpcode opc, unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) { |