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[PATCH v2 15/15] tcg/arm: Implement TCG_TARGET_HAS_rotv_vec
From: |
Richard Henderson |
Subject: |
[PATCH v2 15/15] tcg/arm: Implement TCG_TARGET_HAS_rotv_vec |
Date: |
Sun, 7 Feb 2021 18:46:25 -0800 |
Implement via expansion, so don't actually set TCG_TARGET_HAS_rotv_vec.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/arm/tcg-target.c.inc | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index 3150aae8d6..a930d51e92 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -2977,6 +2977,8 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type,
unsigned vece)
case INDEX_op_shrv_vec:
case INDEX_op_sarv_vec:
case INDEX_op_rotli_vec:
+ case INDEX_op_rotlv_vec:
+ case INDEX_op_rotrv_vec:
return -1;
default:
return 0;
@@ -2987,7 +2989,7 @@ void tcg_expand_vec_op(TCGOpcode opc, TCGType type,
unsigned vece,
TCGArg a0, ...)
{
va_list va;
- TCGv_vec v0, v1, v2, t1;
+ TCGv_vec v0, v1, v2, t1, t2, c1;
TCGArg a2;
va_start(va, a0);
@@ -3032,6 +3034,37 @@ void tcg_expand_vec_op(TCGOpcode opc, TCGType type,
unsigned vece,
tcg_temp_free_vec(t1);
break;
+ case INDEX_op_rotlv_vec:
+ v2 = temp_tcgv_vec(arg_temp(a2));
+ t1 = tcg_temp_new_vec(type);
+ c1 = tcg_constant_vec(type, vece, 8 << vece);
+ tcg_gen_sub_vec(vece, t1, v2, c1);
+ /* Right shifts are negative left shifts for NEON. */
+ vec_gen_3(INDEX_op_arm_ushl_vec, type, vece, tcgv_vec_arg(t1),
+ tcgv_vec_arg(v1), tcgv_vec_arg(t1));
+ vec_gen_3(INDEX_op_arm_ushl_vec, type, vece, tcgv_vec_arg(v0),
+ tcgv_vec_arg(v1), tcgv_vec_arg(v2));
+ tcg_gen_or_vec(vece, v0, v0, t1);
+ tcg_temp_free_vec(t1);
+ break;
+
+ case INDEX_op_rotrv_vec:
+ v2 = temp_tcgv_vec(arg_temp(a2));
+ t1 = tcg_temp_new_vec(type);
+ t2 = tcg_temp_new_vec(type);
+ c1 = tcg_constant_vec(type, vece, 8 << vece);
+ tcg_gen_neg_vec(vece, t1, v2);
+ tcg_gen_sub_vec(vece, t2, c1, v2);
+ /* Right shifts are negative left shifts for NEON. */
+ vec_gen_3(INDEX_op_arm_ushl_vec, type, vece, tcgv_vec_arg(t1),
+ tcgv_vec_arg(v1), tcgv_vec_arg(t1));
+ vec_gen_3(INDEX_op_arm_ushl_vec, type, vece, tcgv_vec_arg(t2),
+ tcgv_vec_arg(v1), tcgv_vec_arg(t2));
+ tcg_gen_or_vec(vece, v0, t1, t2);
+ tcg_temp_free_vec(t1);
+ tcg_temp_free_vec(t2);
+ break;
+
default:
g_assert_not_reached();
}
--
2.25.1
- [PATCH v2 08/15] tcg/arm: Implement TCG_TARGET_HAS_shi_vec, (continued)
- [PATCH v2 08/15] tcg/arm: Implement TCG_TARGET_HAS_shi_vec, Richard Henderson, 2021/02/07
- [PATCH v2 13/15] tcg/arm: Implement TCG_TARGET_HAS_shv_vec, Richard Henderson, 2021/02/07
- [PATCH v2 09/15] tcg/arm: Implement TCG_TARGET_HAS_mul_vec, Richard Henderson, 2021/02/07
- [PATCH v2 12/15] tcg/arm: Implement TCG_TARGET_HAS_bitsel_vec, Richard Henderson, 2021/02/07
- [PATCH v2 15/15] tcg/arm: Implement TCG_TARGET_HAS_rotv_vec,
Richard Henderson <=
- [PATCH v2 10/15] tcg/arm: Implement TCG_TARGET_HAS_sat_vec, Richard Henderson, 2021/02/07
- [PATCH v2 11/15] tcg/arm: Implement TCG_TARGET_HAS_minmax_vec, Richard Henderson, 2021/02/07
- [PATCH v2 14/15] tcg/arm: Implement TCG_TARGET_HAS_roti_vec, Richard Henderson, 2021/02/07