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authorRichard Henderson <richard.henderson@linaro.org>2019-04-17 13:53:02 -1000
committerRichard Henderson <richard.henderson@linaro.org>2019-05-13 22:52:08 +0000
commitbcefc90208f8a1d6f619d61c2647281d92277015 (patch)
treead254d47c251efac0d22503aa975127a6aedc2e7 /tcg/tcg-op-vec.c
parentff1f11f7f8710a768f9313f24bd7f509d3db27e5 (diff)
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.c39
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)
{