From 0006039e29b9e6118beab300146f7c4931f7a217 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 5 Sep 2020 14:20:57 -0700 Subject: [PATCH] tcg/arm: Implement TCG_TARGET_HAS_rotv_vec Implement via expansion, so don't actually set TCG_TARGET_HAS_rotv_vec. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- 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 d0af654c65..f4c9cb8f9f 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -2970,6 +2970,8 @@ 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; @@ -2980,7 +2982,7 @@ 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); @@ -3025,6 +3027,37 @@ 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(); }