Convert the float versions of VMLA, VMLS and VMUL in the Neon 2-reg-scalar group to decodetree. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- As noted in the comment on the WRAP_FP_FN macro, we could have had a do_2scalar_fp() function, but for 3 insns it seemed simpler to just do the wrapping to get hold of the fpstatus ptr. (These are the only fp insns in the group.) Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2549 lines
78 KiB
C
2549 lines
78 KiB
C
/*
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* ARM translation: AArch32 Neon instructions
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2005-2007 CodeSourcery
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* Copyright (c) 2007 OpenedHand, Ltd.
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* Copyright (c) 2020 Linaro, Ltd.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This file is intended to be included from translate.c; it uses
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* some macros and definitions provided by that file.
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* It might be possible to convert it to a standalone .c file eventually.
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*/
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static inline int plus1(DisasContext *s, int x)
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{
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return x + 1;
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}
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static inline int rsub_64(DisasContext *s, int x)
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{
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return 64 - x;
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}
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static inline int rsub_32(DisasContext *s, int x)
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{
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return 32 - x;
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}
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static inline int rsub_16(DisasContext *s, int x)
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{
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return 16 - x;
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}
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static inline int rsub_8(DisasContext *s, int x)
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{
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return 8 - x;
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}
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/* Include the generated Neon decoder */
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#include "decode-neon-dp.inc.c"
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#include "decode-neon-ls.inc.c"
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#include "decode-neon-shared.inc.c"
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static bool trans_VCMLA(DisasContext *s, arg_VCMLA *a)
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{
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int opr_sz;
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TCGv_ptr fpst;
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gen_helper_gvec_3_ptr *fn_gvec_ptr;
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if (!dc_isar_feature(aa32_vcma, s)
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|| (!a->size && !dc_isar_feature(aa32_fp16_arith, s))) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd | a->vn | a->vm) & 0x10)) {
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return false;
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}
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if ((a->vn | a->vm | a->vd) & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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opr_sz = (1 + a->q) * 8;
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fpst = get_fpstatus_ptr(1);
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fn_gvec_ptr = a->size ? gen_helper_gvec_fcmlas : gen_helper_gvec_fcmlah;
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tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(1, a->vn),
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vfp_reg_offset(1, a->vm),
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fpst, opr_sz, opr_sz, a->rot,
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fn_gvec_ptr);
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tcg_temp_free_ptr(fpst);
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return true;
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}
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static bool trans_VCADD(DisasContext *s, arg_VCADD *a)
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{
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int opr_sz;
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TCGv_ptr fpst;
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gen_helper_gvec_3_ptr *fn_gvec_ptr;
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if (!dc_isar_feature(aa32_vcma, s)
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|| (!a->size && !dc_isar_feature(aa32_fp16_arith, s))) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd | a->vn | a->vm) & 0x10)) {
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return false;
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}
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if ((a->vn | a->vm | a->vd) & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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opr_sz = (1 + a->q) * 8;
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fpst = get_fpstatus_ptr(1);
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fn_gvec_ptr = a->size ? gen_helper_gvec_fcadds : gen_helper_gvec_fcaddh;
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tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(1, a->vn),
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vfp_reg_offset(1, a->vm),
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fpst, opr_sz, opr_sz, a->rot,
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fn_gvec_ptr);
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tcg_temp_free_ptr(fpst);
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return true;
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}
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static bool trans_VDOT(DisasContext *s, arg_VDOT *a)
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{
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int opr_sz;
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gen_helper_gvec_3 *fn_gvec;
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if (!dc_isar_feature(aa32_dp, s)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd | a->vn | a->vm) & 0x10)) {
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return false;
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}
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if ((a->vn | a->vm | a->vd) & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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opr_sz = (1 + a->q) * 8;
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fn_gvec = a->u ? gen_helper_gvec_udot_b : gen_helper_gvec_sdot_b;
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tcg_gen_gvec_3_ool(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(1, a->vn),
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vfp_reg_offset(1, a->vm),
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opr_sz, opr_sz, 0, fn_gvec);
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return true;
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}
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static bool trans_VFML(DisasContext *s, arg_VFML *a)
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{
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int opr_sz;
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if (!dc_isar_feature(aa32_fhm, s)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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(a->vd & 0x10)) {
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return false;
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}
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if (a->vd & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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opr_sz = (1 + a->q) * 8;
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tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(a->q, a->vn),
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vfp_reg_offset(a->q, a->vm),
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cpu_env, opr_sz, opr_sz, a->s, /* is_2 == 0 */
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gen_helper_gvec_fmlal_a32);
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return true;
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}
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static bool trans_VCMLA_scalar(DisasContext *s, arg_VCMLA_scalar *a)
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{
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gen_helper_gvec_3_ptr *fn_gvec_ptr;
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int opr_sz;
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TCGv_ptr fpst;
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if (!dc_isar_feature(aa32_vcma, s)) {
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return false;
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}
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if (a->size == 0 && !dc_isar_feature(aa32_fp16_arith, s)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd | a->vn | a->vm) & 0x10)) {
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return false;
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}
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if ((a->vd | a->vn) & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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fn_gvec_ptr = (a->size ? gen_helper_gvec_fcmlas_idx
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: gen_helper_gvec_fcmlah_idx);
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opr_sz = (1 + a->q) * 8;
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fpst = get_fpstatus_ptr(1);
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tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(1, a->vn),
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vfp_reg_offset(1, a->vm),
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fpst, opr_sz, opr_sz,
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(a->index << 2) | a->rot, fn_gvec_ptr);
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tcg_temp_free_ptr(fpst);
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return true;
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}
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static bool trans_VDOT_scalar(DisasContext *s, arg_VDOT_scalar *a)
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{
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gen_helper_gvec_3 *fn_gvec;
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int opr_sz;
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TCGv_ptr fpst;
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if (!dc_isar_feature(aa32_dp, s)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd | a->vn) & 0x10)) {
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return false;
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}
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if ((a->vd | a->vn) & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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fn_gvec = a->u ? gen_helper_gvec_udot_idx_b : gen_helper_gvec_sdot_idx_b;
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opr_sz = (1 + a->q) * 8;
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fpst = get_fpstatus_ptr(1);
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tcg_gen_gvec_3_ool(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(1, a->vn),
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vfp_reg_offset(1, a->rm),
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opr_sz, opr_sz, a->index, fn_gvec);
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tcg_temp_free_ptr(fpst);
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return true;
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}
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static bool trans_VFML_scalar(DisasContext *s, arg_VFML_scalar *a)
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{
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int opr_sz;
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if (!dc_isar_feature(aa32_fhm, s)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist. */
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if (!dc_isar_feature(aa32_simd_r32, s) &&
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((a->vd & 0x10) || (a->q && (a->vn & 0x10)))) {
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return false;
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}
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if (a->vd & a->q) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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opr_sz = (1 + a->q) * 8;
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tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
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vfp_reg_offset(a->q, a->vn),
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vfp_reg_offset(a->q, a->rm),
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cpu_env, opr_sz, opr_sz,
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(a->index << 2) | a->s, /* is_2 == 0 */
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gen_helper_gvec_fmlal_idx_a32);
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return true;
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}
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static struct {
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int nregs;
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int interleave;
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int spacing;
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} const neon_ls_element_type[11] = {
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{1, 4, 1},
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{1, 4, 2},
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{4, 1, 1},
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{2, 2, 2},
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{1, 3, 1},
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{1, 3, 2},
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{3, 1, 1},
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{1, 1, 1},
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{1, 2, 1},
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{1, 2, 2},
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{2, 1, 1}
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};
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static void gen_neon_ldst_base_update(DisasContext *s, int rm, int rn,
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int stride)
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{
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if (rm != 15) {
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TCGv_i32 base;
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base = load_reg(s, rn);
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if (rm == 13) {
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tcg_gen_addi_i32(base, base, stride);
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} else {
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TCGv_i32 index;
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index = load_reg(s, rm);
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tcg_gen_add_i32(base, base, index);
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tcg_temp_free_i32(index);
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}
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store_reg(s, rn, base);
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}
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}
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static bool trans_VLDST_multiple(DisasContext *s, arg_VLDST_multiple *a)
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{
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/* Neon load/store multiple structures */
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int nregs, interleave, spacing, reg, n;
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MemOp endian = s->be_data;
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int mmu_idx = get_mem_index(s);
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int size = a->size;
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TCGv_i64 tmp64;
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TCGv_i32 addr, tmp;
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if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
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return false;
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}
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/* UNDEF accesses to D16-D31 if they don't exist */
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if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
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return false;
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}
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if (a->itype > 10) {
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return false;
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}
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/* Catch UNDEF cases for bad values of align field */
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switch (a->itype & 0xc) {
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case 4:
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if (a->align >= 2) {
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return false;
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}
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break;
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case 8:
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if (a->align == 3) {
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return false;
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}
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break;
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default:
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break;
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}
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nregs = neon_ls_element_type[a->itype].nregs;
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interleave = neon_ls_element_type[a->itype].interleave;
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spacing = neon_ls_element_type[a->itype].spacing;
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if (size == 3 && (interleave | spacing) != 1) {
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return false;
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}
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if (!vfp_access_check(s)) {
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return true;
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}
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/* For our purposes, bytes are always little-endian. */
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if (size == 0) {
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endian = MO_LE;
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}
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/*
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* Consecutive little-endian elements from a single register
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* can be promoted to a larger little-endian operation.
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*/
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if (interleave == 1 && endian == MO_LE) {
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size = 3;
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}
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tmp64 = tcg_temp_new_i64();
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addr = tcg_temp_new_i32();
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tmp = tcg_const_i32(1 << size);
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load_reg_var(s, addr, a->rn);
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for (reg = 0; reg < nregs; reg++) {
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for (n = 0; n < 8 >> size; n++) {
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int xs;
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for (xs = 0; xs < interleave; xs++) {
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int tt = a->vd + reg + spacing * xs;
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if (a->l) {
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gen_aa32_ld_i64(s, tmp64, addr, mmu_idx, endian | size);
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neon_store_element64(tt, n, size, tmp64);
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} else {
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neon_load_element64(tmp64, tt, n, size);
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gen_aa32_st_i64(s, tmp64, addr, mmu_idx, endian | size);
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}
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tcg_gen_add_i32(addr, addr, tmp);
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}
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}
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}
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tcg_temp_free_i32(addr);
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tcg_temp_free_i32(tmp);
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tcg_temp_free_i64(tmp64);
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gen_neon_ldst_base_update(s, a->rm, a->rn, nregs * interleave * 8);
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return true;
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}
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static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
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{
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/* Neon load single structure to all lanes */
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int reg, stride, vec_size;
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int vd = a->vd;
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int size = a->size;
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int nregs = a->n + 1;
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TCGv_i32 addr, tmp;
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if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
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return false;
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}
|
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|
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/* UNDEF accesses to D16-D31 if they don't exist */
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if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
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return false;
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}
|
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|
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if (size == 3) {
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if (nregs != 4 || a->a == 0) {
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return false;
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}
|
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/* For VLD4 size == 3 a == 1 means 32 bits at 16 byte alignment */
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size = 2;
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}
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if (nregs == 1 && a->a == 1 && size == 0) {
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return false;
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}
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if (nregs == 3 && a->a == 1) {
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return false;
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}
|
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|
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if (!vfp_access_check(s)) {
|
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return true;
|
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}
|
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|
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/*
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* VLD1 to all lanes: T bit indicates how many Dregs to write.
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* VLD2/3/4 to all lanes: T bit indicates register stride.
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*/
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stride = a->t ? 2 : 1;
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vec_size = nregs == 1 ? stride * 8 : 8;
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tmp = tcg_temp_new_i32();
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addr = tcg_temp_new_i32();
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load_reg_var(s, addr, a->rn);
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for (reg = 0; reg < nregs; reg++) {
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gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s),
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s->be_data | size);
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if ((vd & 1) && vec_size == 16) {
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/*
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* We cannot write 16 bytes at once because the
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* destination is unaligned.
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*/
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tcg_gen_gvec_dup_i32(size, neon_reg_offset(vd, 0),
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8, 8, tmp);
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tcg_gen_gvec_mov(0, neon_reg_offset(vd + 1, 0),
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neon_reg_offset(vd, 0), 8, 8);
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} else {
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tcg_gen_gvec_dup_i32(size, neon_reg_offset(vd, 0),
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vec_size, vec_size, tmp);
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}
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tcg_gen_addi_i32(addr, addr, 1 << size);
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vd += stride;
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}
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tcg_temp_free_i32(tmp);
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tcg_temp_free_i32(addr);
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|
|
gen_neon_ldst_base_update(s, a->rm, a->rn, (1 << size) * nregs);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VLDST_single(DisasContext *s, arg_VLDST_single *a)
|
|
{
|
|
/* Neon load/store single structure to one lane */
|
|
int reg;
|
|
int nregs = a->n + 1;
|
|
int vd = a->vd;
|
|
TCGv_i32 addr, tmp;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
/* Catch the UNDEF cases. This is unavoidably a bit messy. */
|
|
switch (nregs) {
|
|
case 1:
|
|
if (((a->align & (1 << a->size)) != 0) ||
|
|
(a->size == 2 && ((a->align & 3) == 1 || (a->align & 3) == 2))) {
|
|
return false;
|
|
}
|
|
break;
|
|
case 3:
|
|
if ((a->align & 1) != 0) {
|
|
return false;
|
|
}
|
|
/* fall through */
|
|
case 2:
|
|
if (a->size == 2 && (a->align & 2) != 0) {
|
|
return false;
|
|
}
|
|
break;
|
|
case 4:
|
|
if ((a->size == 2) && ((a->align & 3) == 3)) {
|
|
return false;
|
|
}
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
if ((vd + a->stride * (nregs - 1)) > 31) {
|
|
/*
|
|
* Attempts to write off the end of the register file are
|
|
* UNPREDICTABLE; we choose to UNDEF because otherwise we would
|
|
* access off the end of the array that holds the register data.
|
|
*/
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
tmp = tcg_temp_new_i32();
|
|
addr = tcg_temp_new_i32();
|
|
load_reg_var(s, addr, a->rn);
|
|
/*
|
|
* TODO: if we implemented alignment exceptions, we should check
|
|
* addr against the alignment encoded in a->align here.
|
|
*/
|
|
for (reg = 0; reg < nregs; reg++) {
|
|
if (a->l) {
|
|
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s),
|
|
s->be_data | a->size);
|
|
neon_store_element(vd, a->reg_idx, a->size, tmp);
|
|
} else { /* Store */
|
|
neon_load_element(tmp, vd, a->reg_idx, a->size);
|
|
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s),
|
|
s->be_data | a->size);
|
|
}
|
|
vd += a->stride;
|
|
tcg_gen_addi_i32(addr, addr, 1 << a->size);
|
|
}
|
|
tcg_temp_free_i32(addr);
|
|
tcg_temp_free_i32(tmp);
|
|
|
|
gen_neon_ldst_base_update(s, a->rm, a->rn, (1 << a->size) * nregs);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool do_3same(DisasContext *s, arg_3same *a, GVecGen3Fn fn)
|
|
{
|
|
int vec_size = a->q ? 16 : 8;
|
|
int rd_ofs = neon_reg_offset(a->vd, 0);
|
|
int rn_ofs = neon_reg_offset(a->vn, 0);
|
|
int rm_ofs = neon_reg_offset(a->vm, 0);
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vn | a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
fn(a->size, rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size);
|
|
return true;
|
|
}
|
|
|
|
#define DO_3SAME(INSN, FUNC) \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
return do_3same(s, a, FUNC); \
|
|
}
|
|
|
|
DO_3SAME(VADD, tcg_gen_gvec_add)
|
|
DO_3SAME(VSUB, tcg_gen_gvec_sub)
|
|
DO_3SAME(VAND, tcg_gen_gvec_and)
|
|
DO_3SAME(VBIC, tcg_gen_gvec_andc)
|
|
DO_3SAME(VORR, tcg_gen_gvec_or)
|
|
DO_3SAME(VORN, tcg_gen_gvec_orc)
|
|
DO_3SAME(VEOR, tcg_gen_gvec_xor)
|
|
DO_3SAME(VSHL_S, gen_gvec_sshl)
|
|
DO_3SAME(VSHL_U, gen_gvec_ushl)
|
|
DO_3SAME(VQADD_S, gen_gvec_sqadd_qc)
|
|
DO_3SAME(VQADD_U, gen_gvec_uqadd_qc)
|
|
DO_3SAME(VQSUB_S, gen_gvec_sqsub_qc)
|
|
DO_3SAME(VQSUB_U, gen_gvec_uqsub_qc)
|
|
|
|
/* These insns are all gvec_bitsel but with the inputs in various orders. */
|
|
#define DO_3SAME_BITSEL(INSN, O1, O2, O3) \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
tcg_gen_gvec_bitsel(vece, rd_ofs, O1, O2, O3, oprsz, maxsz); \
|
|
} \
|
|
DO_3SAME(INSN, gen_##INSN##_3s)
|
|
|
|
DO_3SAME_BITSEL(VBSL, rd_ofs, rn_ofs, rm_ofs)
|
|
DO_3SAME_BITSEL(VBIT, rm_ofs, rn_ofs, rd_ofs)
|
|
DO_3SAME_BITSEL(VBIF, rm_ofs, rd_ofs, rn_ofs)
|
|
|
|
#define DO_3SAME_NO_SZ_3(INSN, FUNC) \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size == 3) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, FUNC); \
|
|
}
|
|
|
|
DO_3SAME_NO_SZ_3(VMAX_S, tcg_gen_gvec_smax)
|
|
DO_3SAME_NO_SZ_3(VMAX_U, tcg_gen_gvec_umax)
|
|
DO_3SAME_NO_SZ_3(VMIN_S, tcg_gen_gvec_smin)
|
|
DO_3SAME_NO_SZ_3(VMIN_U, tcg_gen_gvec_umin)
|
|
DO_3SAME_NO_SZ_3(VMUL, tcg_gen_gvec_mul)
|
|
DO_3SAME_NO_SZ_3(VMLA, gen_gvec_mla)
|
|
DO_3SAME_NO_SZ_3(VMLS, gen_gvec_mls)
|
|
DO_3SAME_NO_SZ_3(VTST, gen_gvec_cmtst)
|
|
DO_3SAME_NO_SZ_3(VABD_S, gen_gvec_sabd)
|
|
DO_3SAME_NO_SZ_3(VABA_S, gen_gvec_saba)
|
|
DO_3SAME_NO_SZ_3(VABD_U, gen_gvec_uabd)
|
|
DO_3SAME_NO_SZ_3(VABA_U, gen_gvec_uaba)
|
|
|
|
#define DO_3SAME_CMP(INSN, COND) \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
tcg_gen_gvec_cmp(COND, vece, rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz); \
|
|
} \
|
|
DO_3SAME_NO_SZ_3(INSN, gen_##INSN##_3s)
|
|
|
|
DO_3SAME_CMP(VCGT_S, TCG_COND_GT)
|
|
DO_3SAME_CMP(VCGT_U, TCG_COND_GTU)
|
|
DO_3SAME_CMP(VCGE_S, TCG_COND_GE)
|
|
DO_3SAME_CMP(VCGE_U, TCG_COND_GEU)
|
|
DO_3SAME_CMP(VCEQ, TCG_COND_EQ)
|
|
|
|
#define WRAP_OOL_FN(WRAPNAME, FUNC) \
|
|
static void WRAPNAME(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, \
|
|
uint32_t rm_ofs, uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, 0, FUNC); \
|
|
}
|
|
|
|
WRAP_OOL_FN(gen_VMUL_p_3s, gen_helper_gvec_pmul_b)
|
|
|
|
static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (a->size != 0) {
|
|
return false;
|
|
}
|
|
return do_3same(s, a, gen_VMUL_p_3s);
|
|
}
|
|
|
|
#define DO_VQRDMLAH(INSN, FUNC) \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (!dc_isar_feature(aa32_rdm, s)) { \
|
|
return false; \
|
|
} \
|
|
if (a->size != 1 && a->size != 2) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, FUNC); \
|
|
}
|
|
|
|
DO_VQRDMLAH(VQRDMLAH, gen_gvec_sqrdmlah_qc)
|
|
DO_VQRDMLAH(VQRDMLSH, gen_gvec_sqrdmlsh_qc)
|
|
|
|
#define DO_SHA1(NAME, FUNC) \
|
|
WRAP_OOL_FN(gen_##NAME##_3s, FUNC) \
|
|
static bool trans_##NAME##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (!dc_isar_feature(aa32_sha1, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##NAME##_3s); \
|
|
}
|
|
|
|
DO_SHA1(SHA1C, gen_helper_crypto_sha1c)
|
|
DO_SHA1(SHA1P, gen_helper_crypto_sha1p)
|
|
DO_SHA1(SHA1M, gen_helper_crypto_sha1m)
|
|
DO_SHA1(SHA1SU0, gen_helper_crypto_sha1su0)
|
|
|
|
#define DO_SHA2(NAME, FUNC) \
|
|
WRAP_OOL_FN(gen_##NAME##_3s, FUNC) \
|
|
static bool trans_##NAME##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (!dc_isar_feature(aa32_sha2, s)) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##NAME##_3s); \
|
|
}
|
|
|
|
DO_SHA2(SHA256H, gen_helper_crypto_sha256h)
|
|
DO_SHA2(SHA256H2, gen_helper_crypto_sha256h2)
|
|
DO_SHA2(SHA256SU1, gen_helper_crypto_sha256su1)
|
|
|
|
#define DO_3SAME_64(INSN, FUNC) \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
static const GVecGen3 op = { .fni8 = FUNC }; \
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &op); \
|
|
} \
|
|
DO_3SAME(INSN, gen_##INSN##_3s)
|
|
|
|
#define DO_3SAME_64_ENV(INSN, FUNC) \
|
|
static void gen_##INSN##_elt(TCGv_i64 d, TCGv_i64 n, TCGv_i64 m) \
|
|
{ \
|
|
FUNC(d, cpu_env, n, m); \
|
|
} \
|
|
DO_3SAME_64(INSN, gen_##INSN##_elt)
|
|
|
|
DO_3SAME_64(VRSHL_S64, gen_helper_neon_rshl_s64)
|
|
DO_3SAME_64(VRSHL_U64, gen_helper_neon_rshl_u64)
|
|
DO_3SAME_64_ENV(VQSHL_S64, gen_helper_neon_qshl_s64)
|
|
DO_3SAME_64_ENV(VQSHL_U64, gen_helper_neon_qshl_u64)
|
|
DO_3SAME_64_ENV(VQRSHL_S64, gen_helper_neon_qrshl_s64)
|
|
DO_3SAME_64_ENV(VQRSHL_U64, gen_helper_neon_qrshl_u64)
|
|
|
|
#define DO_3SAME_32(INSN, FUNC) \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
static const GVecGen3 ops[4] = { \
|
|
{ .fni4 = gen_helper_neon_##FUNC##8 }, \
|
|
{ .fni4 = gen_helper_neon_##FUNC##16 }, \
|
|
{ .fni4 = gen_helper_neon_##FUNC##32 }, \
|
|
{ 0 }, \
|
|
}; \
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece]); \
|
|
} \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size > 2) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##INSN##_3s); \
|
|
}
|
|
|
|
/*
|
|
* Some helper functions need to be passed the cpu_env. In order
|
|
* to use those with the gvec APIs like tcg_gen_gvec_3() we need
|
|
* to create wrapper functions whose prototype is a NeonGenTwoOpFn()
|
|
* and which call a NeonGenTwoOpEnvFn().
|
|
*/
|
|
#define WRAP_ENV_FN(WRAPNAME, FUNC) \
|
|
static void WRAPNAME(TCGv_i32 d, TCGv_i32 n, TCGv_i32 m) \
|
|
{ \
|
|
FUNC(d, cpu_env, n, m); \
|
|
}
|
|
|
|
#define DO_3SAME_32_ENV(INSN, FUNC) \
|
|
WRAP_ENV_FN(gen_##INSN##_tramp8, gen_helper_neon_##FUNC##8); \
|
|
WRAP_ENV_FN(gen_##INSN##_tramp16, gen_helper_neon_##FUNC##16); \
|
|
WRAP_ENV_FN(gen_##INSN##_tramp32, gen_helper_neon_##FUNC##32); \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
static const GVecGen3 ops[4] = { \
|
|
{ .fni4 = gen_##INSN##_tramp8 }, \
|
|
{ .fni4 = gen_##INSN##_tramp16 }, \
|
|
{ .fni4 = gen_##INSN##_tramp32 }, \
|
|
{ 0 }, \
|
|
}; \
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece]); \
|
|
} \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size > 2) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##INSN##_3s); \
|
|
}
|
|
|
|
DO_3SAME_32(VHADD_S, hadd_s)
|
|
DO_3SAME_32(VHADD_U, hadd_u)
|
|
DO_3SAME_32(VHSUB_S, hsub_s)
|
|
DO_3SAME_32(VHSUB_U, hsub_u)
|
|
DO_3SAME_32(VRHADD_S, rhadd_s)
|
|
DO_3SAME_32(VRHADD_U, rhadd_u)
|
|
DO_3SAME_32(VRSHL_S, rshl_s)
|
|
DO_3SAME_32(VRSHL_U, rshl_u)
|
|
|
|
DO_3SAME_32_ENV(VQSHL_S, qshl_s)
|
|
DO_3SAME_32_ENV(VQSHL_U, qshl_u)
|
|
DO_3SAME_32_ENV(VQRSHL_S, qrshl_s)
|
|
DO_3SAME_32_ENV(VQRSHL_U, qrshl_u)
|
|
|
|
static bool do_3same_pair(DisasContext *s, arg_3same *a, NeonGenTwoOpFn *fn)
|
|
{
|
|
/* Operations handled pairwise 32 bits at a time */
|
|
TCGv_i32 tmp, tmp2, tmp3;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->size == 3) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
assert(a->q == 0); /* enforced by decode patterns */
|
|
|
|
/*
|
|
* Note that we have to be careful not to clobber the source operands
|
|
* in the "vm == vd" case by storing the result of the first pass too
|
|
* early. Since Q is 0 there are always just two passes, so instead
|
|
* of a complicated loop over each pass we just unroll.
|
|
*/
|
|
tmp = neon_load_reg(a->vn, 0);
|
|
tmp2 = neon_load_reg(a->vn, 1);
|
|
fn(tmp, tmp, tmp2);
|
|
tcg_temp_free_i32(tmp2);
|
|
|
|
tmp3 = neon_load_reg(a->vm, 0);
|
|
tmp2 = neon_load_reg(a->vm, 1);
|
|
fn(tmp3, tmp3, tmp2);
|
|
tcg_temp_free_i32(tmp2);
|
|
|
|
neon_store_reg(a->vd, 0, tmp);
|
|
neon_store_reg(a->vd, 1, tmp3);
|
|
return true;
|
|
}
|
|
|
|
#define DO_3SAME_PAIR(INSN, func) \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
static NeonGenTwoOpFn * const fns[] = { \
|
|
gen_helper_neon_##func##8, \
|
|
gen_helper_neon_##func##16, \
|
|
gen_helper_neon_##func##32, \
|
|
}; \
|
|
if (a->size > 2) { \
|
|
return false; \
|
|
} \
|
|
return do_3same_pair(s, a, fns[a->size]); \
|
|
}
|
|
|
|
/* 32-bit pairwise ops end up the same as the elementwise versions. */
|
|
#define gen_helper_neon_pmax_s32 tcg_gen_smax_i32
|
|
#define gen_helper_neon_pmax_u32 tcg_gen_umax_i32
|
|
#define gen_helper_neon_pmin_s32 tcg_gen_smin_i32
|
|
#define gen_helper_neon_pmin_u32 tcg_gen_umin_i32
|
|
#define gen_helper_neon_padd_u32 tcg_gen_add_i32
|
|
|
|
DO_3SAME_PAIR(VPMAX_S, pmax_s)
|
|
DO_3SAME_PAIR(VPMIN_S, pmin_s)
|
|
DO_3SAME_PAIR(VPMAX_U, pmax_u)
|
|
DO_3SAME_PAIR(VPMIN_U, pmin_u)
|
|
DO_3SAME_PAIR(VPADD, padd_u)
|
|
|
|
#define DO_3SAME_VQDMULH(INSN, FUNC) \
|
|
WRAP_ENV_FN(gen_##INSN##_tramp16, gen_helper_neon_##FUNC##_s16); \
|
|
WRAP_ENV_FN(gen_##INSN##_tramp32, gen_helper_neon_##FUNC##_s32); \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
static const GVecGen3 ops[2] = { \
|
|
{ .fni4 = gen_##INSN##_tramp16 }, \
|
|
{ .fni4 = gen_##INSN##_tramp32 }, \
|
|
}; \
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece - 1]); \
|
|
} \
|
|
static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size != 1 && a->size != 2) { \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##INSN##_3s); \
|
|
}
|
|
|
|
DO_3SAME_VQDMULH(VQDMULH, qdmulh)
|
|
DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
|
|
|
|
static bool do_3same_fp(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn,
|
|
bool reads_vd)
|
|
{
|
|
/*
|
|
* FP operations handled elementwise 32 bits at a time.
|
|
* If reads_vd is true then the old value of Vd will be
|
|
* loaded before calling the callback function. This is
|
|
* used for multiply-accumulate type operations.
|
|
*/
|
|
TCGv_i32 tmp, tmp2;
|
|
int pass;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vn | a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
|
|
for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
|
|
tmp = neon_load_reg(a->vn, pass);
|
|
tmp2 = neon_load_reg(a->vm, pass);
|
|
if (reads_vd) {
|
|
TCGv_i32 tmp_rd = neon_load_reg(a->vd, pass);
|
|
fn(tmp_rd, tmp, tmp2, fpstatus);
|
|
neon_store_reg(a->vd, pass, tmp_rd);
|
|
tcg_temp_free_i32(tmp);
|
|
} else {
|
|
fn(tmp, tmp, tmp2, fpstatus);
|
|
neon_store_reg(a->vd, pass, tmp);
|
|
}
|
|
tcg_temp_free_i32(tmp2);
|
|
}
|
|
tcg_temp_free_ptr(fpstatus);
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* For all the functions using this macro, size == 1 means fp16,
|
|
* which is an architecture extension we don't implement yet.
|
|
*/
|
|
#define DO_3S_FP_GVEC(INSN,FUNC) \
|
|
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
|
|
uint32_t rn_ofs, uint32_t rm_ofs, \
|
|
uint32_t oprsz, uint32_t maxsz) \
|
|
{ \
|
|
TCGv_ptr fpst = get_fpstatus_ptr(1); \
|
|
tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, fpst, \
|
|
oprsz, maxsz, 0, FUNC); \
|
|
tcg_temp_free_ptr(fpst); \
|
|
} \
|
|
static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size != 0) { \
|
|
/* TODO fp16 support */ \
|
|
return false; \
|
|
} \
|
|
return do_3same(s, a, gen_##INSN##_3s); \
|
|
}
|
|
|
|
|
|
DO_3S_FP_GVEC(VADD, gen_helper_gvec_fadd_s)
|
|
DO_3S_FP_GVEC(VSUB, gen_helper_gvec_fsub_s)
|
|
DO_3S_FP_GVEC(VABD, gen_helper_gvec_fabd_s)
|
|
DO_3S_FP_GVEC(VMUL, gen_helper_gvec_fmul_s)
|
|
|
|
/*
|
|
* For all the functions using this macro, size == 1 means fp16,
|
|
* which is an architecture extension we don't implement yet.
|
|
*/
|
|
#define DO_3S_FP(INSN,FUNC,READS_VD) \
|
|
static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size != 0) { \
|
|
/* TODO fp16 support */ \
|
|
return false; \
|
|
} \
|
|
return do_3same_fp(s, a, FUNC, READS_VD); \
|
|
}
|
|
|
|
DO_3S_FP(VCEQ, gen_helper_neon_ceq_f32, false)
|
|
DO_3S_FP(VCGE, gen_helper_neon_cge_f32, false)
|
|
DO_3S_FP(VCGT, gen_helper_neon_cgt_f32, false)
|
|
DO_3S_FP(VACGE, gen_helper_neon_acge_f32, false)
|
|
DO_3S_FP(VACGT, gen_helper_neon_acgt_f32, false)
|
|
DO_3S_FP(VMAX, gen_helper_vfp_maxs, false)
|
|
DO_3S_FP(VMIN, gen_helper_vfp_mins, false)
|
|
|
|
static void gen_VMLA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
|
|
TCGv_ptr fpstatus)
|
|
{
|
|
gen_helper_vfp_muls(vn, vn, vm, fpstatus);
|
|
gen_helper_vfp_adds(vd, vd, vn, fpstatus);
|
|
}
|
|
|
|
static void gen_VMLS_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
|
|
TCGv_ptr fpstatus)
|
|
{
|
|
gen_helper_vfp_muls(vn, vn, vm, fpstatus);
|
|
gen_helper_vfp_subs(vd, vd, vn, fpstatus);
|
|
}
|
|
|
|
DO_3S_FP(VMLA, gen_VMLA_fp_3s, true)
|
|
DO_3S_FP(VMLS, gen_VMLS_fp_3s, true)
|
|
|
|
static bool trans_VMAXNM_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same_fp(s, a, gen_helper_vfp_maxnums, false);
|
|
}
|
|
|
|
static bool trans_VMINNM_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same_fp(s, a, gen_helper_vfp_minnums, false);
|
|
}
|
|
|
|
WRAP_ENV_FN(gen_VRECPS_tramp, gen_helper_recps_f32)
|
|
|
|
static void gen_VRECPS_fp_3s(unsigned vece, uint32_t rd_ofs,
|
|
uint32_t rn_ofs, uint32_t rm_ofs,
|
|
uint32_t oprsz, uint32_t maxsz)
|
|
{
|
|
static const GVecGen3 ops = { .fni4 = gen_VRECPS_tramp };
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
|
|
}
|
|
|
|
static bool trans_VRECPS_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same(s, a, gen_VRECPS_fp_3s);
|
|
}
|
|
|
|
WRAP_ENV_FN(gen_VRSQRTS_tramp, gen_helper_rsqrts_f32)
|
|
|
|
static void gen_VRSQRTS_fp_3s(unsigned vece, uint32_t rd_ofs,
|
|
uint32_t rn_ofs, uint32_t rm_ofs,
|
|
uint32_t oprsz, uint32_t maxsz)
|
|
{
|
|
static const GVecGen3 ops = { .fni4 = gen_VRSQRTS_tramp };
|
|
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
|
|
}
|
|
|
|
static bool trans_VRSQRTS_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same(s, a, gen_VRSQRTS_fp_3s);
|
|
}
|
|
|
|
static void gen_VFMA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
|
|
TCGv_ptr fpstatus)
|
|
{
|
|
gen_helper_vfp_muladds(vd, vn, vm, vd, fpstatus);
|
|
}
|
|
|
|
static bool trans_VFMA_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (!dc_isar_feature(aa32_simdfmac, s)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same_fp(s, a, gen_VFMA_fp_3s, true);
|
|
}
|
|
|
|
static void gen_VFMS_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
|
|
TCGv_ptr fpstatus)
|
|
{
|
|
gen_helper_vfp_negs(vn, vn);
|
|
gen_helper_vfp_muladds(vd, vn, vm, vd, fpstatus);
|
|
}
|
|
|
|
static bool trans_VFMS_fp_3s(DisasContext *s, arg_3same *a)
|
|
{
|
|
if (!dc_isar_feature(aa32_simdfmac, s)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->size != 0) {
|
|
/* TODO fp16 support */
|
|
return false;
|
|
}
|
|
|
|
return do_3same_fp(s, a, gen_VFMS_fp_3s, true);
|
|
}
|
|
|
|
static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
|
|
{
|
|
/* FP operations handled pairwise 32 bits at a time */
|
|
TCGv_i32 tmp, tmp2, tmp3;
|
|
TCGv_ptr fpstatus;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
assert(a->q == 0); /* enforced by decode patterns */
|
|
|
|
/*
|
|
* Note that we have to be careful not to clobber the source operands
|
|
* in the "vm == vd" case by storing the result of the first pass too
|
|
* early. Since Q is 0 there are always just two passes, so instead
|
|
* of a complicated loop over each pass we just unroll.
|
|
*/
|
|
fpstatus = get_fpstatus_ptr(1);
|
|
tmp = neon_load_reg(a->vn, 0);
|
|
tmp2 = neon_load_reg(a->vn, 1);
|
|
fn(tmp, tmp, tmp2, fpstatus);
|
|
tcg_temp_free_i32(tmp2);
|
|
|
|
tmp3 = neon_load_reg(a->vm, 0);
|
|
tmp2 = neon_load_reg(a->vm, 1);
|
|
fn(tmp3, tmp3, tmp2, fpstatus);
|
|
tcg_temp_free_i32(tmp2);
|
|
tcg_temp_free_ptr(fpstatus);
|
|
|
|
neon_store_reg(a->vd, 0, tmp);
|
|
neon_store_reg(a->vd, 1, tmp3);
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* For all the functions using this macro, size == 1 means fp16,
|
|
* which is an architecture extension we don't implement yet.
|
|
*/
|
|
#define DO_3S_FP_PAIR(INSN,FUNC) \
|
|
static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
|
|
{ \
|
|
if (a->size != 0) { \
|
|
/* TODO fp16 support */ \
|
|
return false; \
|
|
} \
|
|
return do_3same_fp_pair(s, a, FUNC); \
|
|
}
|
|
|
|
DO_3S_FP_PAIR(VPADD, gen_helper_vfp_adds)
|
|
DO_3S_FP_PAIR(VPMAX, gen_helper_vfp_maxs)
|
|
DO_3S_FP_PAIR(VPMIN, gen_helper_vfp_mins)
|
|
|
|
static bool do_vector_2sh(DisasContext *s, arg_2reg_shift *a, GVecGen2iFn *fn)
|
|
{
|
|
/* Handle a 2-reg-shift insn which can be vectorized. */
|
|
int vec_size = a->q ? 16 : 8;
|
|
int rd_ofs = neon_reg_offset(a->vd, 0);
|
|
int rm_ofs = neon_reg_offset(a->vm, 0);
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
fn(a->size, rd_ofs, rm_ofs, a->shift, vec_size, vec_size);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2SH(INSN, FUNC) \
|
|
static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
return do_vector_2sh(s, a, FUNC); \
|
|
} \
|
|
|
|
DO_2SH(VSHL, tcg_gen_gvec_shli)
|
|
DO_2SH(VSLI, gen_gvec_sli)
|
|
DO_2SH(VSRI, gen_gvec_sri)
|
|
DO_2SH(VSRA_S, gen_gvec_ssra)
|
|
DO_2SH(VSRA_U, gen_gvec_usra)
|
|
DO_2SH(VRSHR_S, gen_gvec_srshr)
|
|
DO_2SH(VRSHR_U, gen_gvec_urshr)
|
|
DO_2SH(VRSRA_S, gen_gvec_srsra)
|
|
DO_2SH(VRSRA_U, gen_gvec_ursra)
|
|
|
|
static bool trans_VSHR_S_2sh(DisasContext *s, arg_2reg_shift *a)
|
|
{
|
|
/* Signed shift out of range results in all-sign-bits */
|
|
a->shift = MIN(a->shift, (8 << a->size) - 1);
|
|
return do_vector_2sh(s, a, tcg_gen_gvec_sari);
|
|
}
|
|
|
|
static void gen_zero_rd_2sh(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
|
|
int64_t shift, uint32_t oprsz, uint32_t maxsz)
|
|
{
|
|
tcg_gen_gvec_dup_imm(vece, rd_ofs, oprsz, maxsz, 0);
|
|
}
|
|
|
|
static bool trans_VSHR_U_2sh(DisasContext *s, arg_2reg_shift *a)
|
|
{
|
|
/* Shift out of range is architecturally valid and results in zero. */
|
|
if (a->shift >= (8 << a->size)) {
|
|
return do_vector_2sh(s, a, gen_zero_rd_2sh);
|
|
} else {
|
|
return do_vector_2sh(s, a, tcg_gen_gvec_shri);
|
|
}
|
|
}
|
|
|
|
static bool do_2shift_env_64(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenTwo64OpEnvFn *fn)
|
|
{
|
|
/*
|
|
* 2-reg-and-shift operations, size == 3 case, where the
|
|
* function needs to be passed cpu_env.
|
|
*/
|
|
TCGv_i64 constimm;
|
|
int pass;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* To avoid excessive duplication of ops we implement shift
|
|
* by immediate using the variable shift operations.
|
|
*/
|
|
constimm = tcg_const_i64(dup_const(a->size, a->shift));
|
|
|
|
for (pass = 0; pass < a->q + 1; pass++) {
|
|
TCGv_i64 tmp = tcg_temp_new_i64();
|
|
|
|
neon_load_reg64(tmp, a->vm + pass);
|
|
fn(tmp, cpu_env, tmp, constimm);
|
|
neon_store_reg64(tmp, a->vd + pass);
|
|
tcg_temp_free_i64(tmp);
|
|
}
|
|
tcg_temp_free_i64(constimm);
|
|
return true;
|
|
}
|
|
|
|
static bool do_2shift_env_32(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenTwoOpEnvFn *fn)
|
|
{
|
|
/*
|
|
* 2-reg-and-shift operations, size < 3 case, where the
|
|
* helper needs to be passed cpu_env.
|
|
*/
|
|
TCGv_i32 constimm;
|
|
int pass;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* To avoid excessive duplication of ops we implement shift
|
|
* by immediate using the variable shift operations.
|
|
*/
|
|
constimm = tcg_const_i32(dup_const(a->size, a->shift));
|
|
|
|
for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
|
|
TCGv_i32 tmp = neon_load_reg(a->vm, pass);
|
|
fn(tmp, cpu_env, tmp, constimm);
|
|
neon_store_reg(a->vd, pass, tmp);
|
|
}
|
|
tcg_temp_free_i32(constimm);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2SHIFT_ENV(INSN, FUNC) \
|
|
static bool trans_##INSN##_64_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
return do_2shift_env_64(s, a, gen_helper_neon_##FUNC##64); \
|
|
} \
|
|
static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
static NeonGenTwoOpEnvFn * const fns[] = { \
|
|
gen_helper_neon_##FUNC##8, \
|
|
gen_helper_neon_##FUNC##16, \
|
|
gen_helper_neon_##FUNC##32, \
|
|
}; \
|
|
assert(a->size < ARRAY_SIZE(fns)); \
|
|
return do_2shift_env_32(s, a, fns[a->size]); \
|
|
}
|
|
|
|
DO_2SHIFT_ENV(VQSHLU, qshlu_s)
|
|
DO_2SHIFT_ENV(VQSHL_U, qshl_u)
|
|
DO_2SHIFT_ENV(VQSHL_S, qshl_s)
|
|
|
|
static bool do_2shift_narrow_64(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenTwo64OpFn *shiftfn,
|
|
NeonGenNarrowEnvFn *narrowfn)
|
|
{
|
|
/* 2-reg-and-shift narrowing-shift operations, size == 3 case */
|
|
TCGv_i64 constimm, rm1, rm2;
|
|
TCGv_i32 rd;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->vm & 1) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* This is always a right shift, and the shiftfn is always a
|
|
* left-shift helper, which thus needs the negated shift count.
|
|
*/
|
|
constimm = tcg_const_i64(-a->shift);
|
|
rm1 = tcg_temp_new_i64();
|
|
rm2 = tcg_temp_new_i64();
|
|
|
|
/* Load both inputs first to avoid potential overwrite if rm == rd */
|
|
neon_load_reg64(rm1, a->vm);
|
|
neon_load_reg64(rm2, a->vm + 1);
|
|
|
|
shiftfn(rm1, rm1, constimm);
|
|
rd = tcg_temp_new_i32();
|
|
narrowfn(rd, cpu_env, rm1);
|
|
neon_store_reg(a->vd, 0, rd);
|
|
|
|
shiftfn(rm2, rm2, constimm);
|
|
rd = tcg_temp_new_i32();
|
|
narrowfn(rd, cpu_env, rm2);
|
|
neon_store_reg(a->vd, 1, rd);
|
|
|
|
tcg_temp_free_i64(rm1);
|
|
tcg_temp_free_i64(rm2);
|
|
tcg_temp_free_i64(constimm);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool do_2shift_narrow_32(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenTwoOpFn *shiftfn,
|
|
NeonGenNarrowEnvFn *narrowfn)
|
|
{
|
|
/* 2-reg-and-shift narrowing-shift operations, size < 3 case */
|
|
TCGv_i32 constimm, rm1, rm2, rm3, rm4;
|
|
TCGv_i64 rtmp;
|
|
uint32_t imm;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->vm & 1) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* This is always a right shift, and the shiftfn is always a
|
|
* left-shift helper, which thus needs the negated shift count
|
|
* duplicated into each lane of the immediate value.
|
|
*/
|
|
if (a->size == 1) {
|
|
imm = (uint16_t)(-a->shift);
|
|
imm |= imm << 16;
|
|
} else {
|
|
/* size == 2 */
|
|
imm = -a->shift;
|
|
}
|
|
constimm = tcg_const_i32(imm);
|
|
|
|
/* Load all inputs first to avoid potential overwrite */
|
|
rm1 = neon_load_reg(a->vm, 0);
|
|
rm2 = neon_load_reg(a->vm, 1);
|
|
rm3 = neon_load_reg(a->vm + 1, 0);
|
|
rm4 = neon_load_reg(a->vm + 1, 1);
|
|
rtmp = tcg_temp_new_i64();
|
|
|
|
shiftfn(rm1, rm1, constimm);
|
|
shiftfn(rm2, rm2, constimm);
|
|
|
|
tcg_gen_concat_i32_i64(rtmp, rm1, rm2);
|
|
tcg_temp_free_i32(rm2);
|
|
|
|
narrowfn(rm1, cpu_env, rtmp);
|
|
neon_store_reg(a->vd, 0, rm1);
|
|
|
|
shiftfn(rm3, rm3, constimm);
|
|
shiftfn(rm4, rm4, constimm);
|
|
tcg_temp_free_i32(constimm);
|
|
|
|
tcg_gen_concat_i32_i64(rtmp, rm3, rm4);
|
|
tcg_temp_free_i32(rm4);
|
|
|
|
narrowfn(rm3, cpu_env, rtmp);
|
|
tcg_temp_free_i64(rtmp);
|
|
neon_store_reg(a->vd, 1, rm3);
|
|
return true;
|
|
}
|
|
|
|
#define DO_2SN_64(INSN, FUNC, NARROWFUNC) \
|
|
static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
return do_2shift_narrow_64(s, a, FUNC, NARROWFUNC); \
|
|
}
|
|
#define DO_2SN_32(INSN, FUNC, NARROWFUNC) \
|
|
static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
return do_2shift_narrow_32(s, a, FUNC, NARROWFUNC); \
|
|
}
|
|
|
|
static void gen_neon_narrow_u32(TCGv_i32 dest, TCGv_ptr env, TCGv_i64 src)
|
|
{
|
|
tcg_gen_extrl_i64_i32(dest, src);
|
|
}
|
|
|
|
static void gen_neon_narrow_u16(TCGv_i32 dest, TCGv_ptr env, TCGv_i64 src)
|
|
{
|
|
gen_helper_neon_narrow_u16(dest, src);
|
|
}
|
|
|
|
static void gen_neon_narrow_u8(TCGv_i32 dest, TCGv_ptr env, TCGv_i64 src)
|
|
{
|
|
gen_helper_neon_narrow_u8(dest, src);
|
|
}
|
|
|
|
DO_2SN_64(VSHRN_64, gen_ushl_i64, gen_neon_narrow_u32)
|
|
DO_2SN_32(VSHRN_32, gen_ushl_i32, gen_neon_narrow_u16)
|
|
DO_2SN_32(VSHRN_16, gen_helper_neon_shl_u16, gen_neon_narrow_u8)
|
|
|
|
DO_2SN_64(VRSHRN_64, gen_helper_neon_rshl_u64, gen_neon_narrow_u32)
|
|
DO_2SN_32(VRSHRN_32, gen_helper_neon_rshl_u32, gen_neon_narrow_u16)
|
|
DO_2SN_32(VRSHRN_16, gen_helper_neon_rshl_u16, gen_neon_narrow_u8)
|
|
|
|
DO_2SN_64(VQSHRUN_64, gen_sshl_i64, gen_helper_neon_unarrow_sat32)
|
|
DO_2SN_32(VQSHRUN_32, gen_sshl_i32, gen_helper_neon_unarrow_sat16)
|
|
DO_2SN_32(VQSHRUN_16, gen_helper_neon_shl_s16, gen_helper_neon_unarrow_sat8)
|
|
|
|
DO_2SN_64(VQRSHRUN_64, gen_helper_neon_rshl_s64, gen_helper_neon_unarrow_sat32)
|
|
DO_2SN_32(VQRSHRUN_32, gen_helper_neon_rshl_s32, gen_helper_neon_unarrow_sat16)
|
|
DO_2SN_32(VQRSHRUN_16, gen_helper_neon_rshl_s16, gen_helper_neon_unarrow_sat8)
|
|
DO_2SN_64(VQSHRN_S64, gen_sshl_i64, gen_helper_neon_narrow_sat_s32)
|
|
DO_2SN_32(VQSHRN_S32, gen_sshl_i32, gen_helper_neon_narrow_sat_s16)
|
|
DO_2SN_32(VQSHRN_S16, gen_helper_neon_shl_s16, gen_helper_neon_narrow_sat_s8)
|
|
|
|
DO_2SN_64(VQRSHRN_S64, gen_helper_neon_rshl_s64, gen_helper_neon_narrow_sat_s32)
|
|
DO_2SN_32(VQRSHRN_S32, gen_helper_neon_rshl_s32, gen_helper_neon_narrow_sat_s16)
|
|
DO_2SN_32(VQRSHRN_S16, gen_helper_neon_rshl_s16, gen_helper_neon_narrow_sat_s8)
|
|
|
|
DO_2SN_64(VQSHRN_U64, gen_ushl_i64, gen_helper_neon_narrow_sat_u32)
|
|
DO_2SN_32(VQSHRN_U32, gen_ushl_i32, gen_helper_neon_narrow_sat_u16)
|
|
DO_2SN_32(VQSHRN_U16, gen_helper_neon_shl_u16, gen_helper_neon_narrow_sat_u8)
|
|
|
|
DO_2SN_64(VQRSHRN_U64, gen_helper_neon_rshl_u64, gen_helper_neon_narrow_sat_u32)
|
|
DO_2SN_32(VQRSHRN_U32, gen_helper_neon_rshl_u32, gen_helper_neon_narrow_sat_u16)
|
|
DO_2SN_32(VQRSHRN_U16, gen_helper_neon_rshl_u16, gen_helper_neon_narrow_sat_u8)
|
|
|
|
static bool do_vshll_2sh(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenWidenFn *widenfn, bool u)
|
|
{
|
|
TCGv_i64 tmp;
|
|
TCGv_i32 rm0, rm1;
|
|
uint64_t widen_mask = 0;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->vd & 1) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* This is a widen-and-shift operation. The shift is always less
|
|
* than the width of the source type, so after widening the input
|
|
* vector we can simply shift the whole 64-bit widened register,
|
|
* and then clear the potential overflow bits resulting from left
|
|
* bits of the narrow input appearing as right bits of the left
|
|
* neighbour narrow input. Calculate a mask of bits to clear.
|
|
*/
|
|
if ((a->shift != 0) && (a->size < 2 || u)) {
|
|
int esize = 8 << a->size;
|
|
widen_mask = MAKE_64BIT_MASK(0, esize);
|
|
widen_mask >>= esize - a->shift;
|
|
widen_mask = dup_const(a->size + 1, widen_mask);
|
|
}
|
|
|
|
rm0 = neon_load_reg(a->vm, 0);
|
|
rm1 = neon_load_reg(a->vm, 1);
|
|
tmp = tcg_temp_new_i64();
|
|
|
|
widenfn(tmp, rm0);
|
|
tcg_temp_free_i32(rm0);
|
|
if (a->shift != 0) {
|
|
tcg_gen_shli_i64(tmp, tmp, a->shift);
|
|
tcg_gen_andi_i64(tmp, tmp, ~widen_mask);
|
|
}
|
|
neon_store_reg64(tmp, a->vd);
|
|
|
|
widenfn(tmp, rm1);
|
|
tcg_temp_free_i32(rm1);
|
|
if (a->shift != 0) {
|
|
tcg_gen_shli_i64(tmp, tmp, a->shift);
|
|
tcg_gen_andi_i64(tmp, tmp, ~widen_mask);
|
|
}
|
|
neon_store_reg64(tmp, a->vd + 1);
|
|
tcg_temp_free_i64(tmp);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VSHLL_S_2sh(DisasContext *s, arg_2reg_shift *a)
|
|
{
|
|
static NeonGenWidenFn * const widenfn[] = {
|
|
gen_helper_neon_widen_s8,
|
|
gen_helper_neon_widen_s16,
|
|
tcg_gen_ext_i32_i64,
|
|
};
|
|
return do_vshll_2sh(s, a, widenfn[a->size], false);
|
|
}
|
|
|
|
static bool trans_VSHLL_U_2sh(DisasContext *s, arg_2reg_shift *a)
|
|
{
|
|
static NeonGenWidenFn * const widenfn[] = {
|
|
gen_helper_neon_widen_u8,
|
|
gen_helper_neon_widen_u16,
|
|
tcg_gen_extu_i32_i64,
|
|
};
|
|
return do_vshll_2sh(s, a, widenfn[a->size], true);
|
|
}
|
|
|
|
static bool do_fp_2sh(DisasContext *s, arg_2reg_shift *a,
|
|
NeonGenTwoSingleOPFn *fn)
|
|
{
|
|
/* FP operations in 2-reg-and-shift group */
|
|
TCGv_i32 tmp, shiftv;
|
|
TCGv_ptr fpstatus;
|
|
int pass;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if ((a->vm | a->vd) & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
fpstatus = get_fpstatus_ptr(1);
|
|
shiftv = tcg_const_i32(a->shift);
|
|
for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
|
|
tmp = neon_load_reg(a->vm, pass);
|
|
fn(tmp, tmp, shiftv, fpstatus);
|
|
neon_store_reg(a->vd, pass, tmp);
|
|
}
|
|
tcg_temp_free_ptr(fpstatus);
|
|
tcg_temp_free_i32(shiftv);
|
|
return true;
|
|
}
|
|
|
|
#define DO_FP_2SH(INSN, FUNC) \
|
|
static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a) \
|
|
{ \
|
|
return do_fp_2sh(s, a, FUNC); \
|
|
}
|
|
|
|
DO_FP_2SH(VCVT_SF, gen_helper_vfp_sltos)
|
|
DO_FP_2SH(VCVT_UF, gen_helper_vfp_ultos)
|
|
DO_FP_2SH(VCVT_FS, gen_helper_vfp_tosls_round_to_zero)
|
|
DO_FP_2SH(VCVT_FU, gen_helper_vfp_touls_round_to_zero)
|
|
|
|
static uint64_t asimd_imm_const(uint32_t imm, int cmode, int op)
|
|
{
|
|
/*
|
|
* Expand the encoded constant.
|
|
* Note that cmode = 2,3,4,5,6,7,10,11,12,13 imm=0 is UNPREDICTABLE.
|
|
* We choose to not special-case this and will behave as if a
|
|
* valid constant encoding of 0 had been given.
|
|
* cmode = 15 op = 1 must UNDEF; we assume decode has handled that.
|
|
*/
|
|
switch (cmode) {
|
|
case 0: case 1:
|
|
/* no-op */
|
|
break;
|
|
case 2: case 3:
|
|
imm <<= 8;
|
|
break;
|
|
case 4: case 5:
|
|
imm <<= 16;
|
|
break;
|
|
case 6: case 7:
|
|
imm <<= 24;
|
|
break;
|
|
case 8: case 9:
|
|
imm |= imm << 16;
|
|
break;
|
|
case 10: case 11:
|
|
imm = (imm << 8) | (imm << 24);
|
|
break;
|
|
case 12:
|
|
imm = (imm << 8) | 0xff;
|
|
break;
|
|
case 13:
|
|
imm = (imm << 16) | 0xffff;
|
|
break;
|
|
case 14:
|
|
if (op) {
|
|
/*
|
|
* This is the only case where the top and bottom 32 bits
|
|
* of the encoded constant differ.
|
|
*/
|
|
uint64_t imm64 = 0;
|
|
int n;
|
|
|
|
for (n = 0; n < 8; n++) {
|
|
if (imm & (1 << n)) {
|
|
imm64 |= (0xffULL << (n * 8));
|
|
}
|
|
}
|
|
return imm64;
|
|
}
|
|
imm |= (imm << 8) | (imm << 16) | (imm << 24);
|
|
break;
|
|
case 15:
|
|
imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19)
|
|
| ((imm & 0x40) ? (0x1f << 25) : (1 << 30));
|
|
break;
|
|
}
|
|
if (op) {
|
|
imm = ~imm;
|
|
}
|
|
return dup_const(MO_32, imm);
|
|
}
|
|
|
|
static bool do_1reg_imm(DisasContext *s, arg_1reg_imm *a,
|
|
GVecGen2iFn *fn)
|
|
{
|
|
uint64_t imm;
|
|
int reg_ofs, vec_size;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->vd & a->q) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
reg_ofs = neon_reg_offset(a->vd, 0);
|
|
vec_size = a->q ? 16 : 8;
|
|
imm = asimd_imm_const(a->imm, a->cmode, a->op);
|
|
|
|
fn(MO_64, reg_ofs, reg_ofs, imm, vec_size, vec_size);
|
|
return true;
|
|
}
|
|
|
|
static void gen_VMOV_1r(unsigned vece, uint32_t dofs, uint32_t aofs,
|
|
int64_t c, uint32_t oprsz, uint32_t maxsz)
|
|
{
|
|
tcg_gen_gvec_dup_imm(MO_64, dofs, oprsz, maxsz, c);
|
|
}
|
|
|
|
static bool trans_Vimm_1r(DisasContext *s, arg_1reg_imm *a)
|
|
{
|
|
/* Handle decode of cmode/op here between VORR/VBIC/VMOV */
|
|
GVecGen2iFn *fn;
|
|
|
|
if ((a->cmode & 1) && a->cmode < 12) {
|
|
/* for op=1, the imm will be inverted, so BIC becomes AND. */
|
|
fn = a->op ? tcg_gen_gvec_andi : tcg_gen_gvec_ori;
|
|
} else {
|
|
/* There is one unallocated cmode/op combination in this space */
|
|
if (a->cmode == 15 && a->op == 1) {
|
|
return false;
|
|
}
|
|
fn = gen_VMOV_1r;
|
|
}
|
|
return do_1reg_imm(s, a, fn);
|
|
}
|
|
|
|
static bool do_prewiden_3d(DisasContext *s, arg_3diff *a,
|
|
NeonGenWidenFn *widenfn,
|
|
NeonGenTwo64OpFn *opfn,
|
|
bool src1_wide)
|
|
{
|
|
/* 3-regs different lengths, prewidening case (VADDL/VSUBL/VAADW/VSUBW) */
|
|
TCGv_i64 rn0_64, rn1_64, rm_64;
|
|
TCGv_i32 rm;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (!widenfn || !opfn) {
|
|
/* size == 3 case, which is an entirely different insn group */
|
|
return false;
|
|
}
|
|
|
|
if ((a->vd & 1) || (src1_wide && (a->vn & 1))) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
rn0_64 = tcg_temp_new_i64();
|
|
rn1_64 = tcg_temp_new_i64();
|
|
rm_64 = tcg_temp_new_i64();
|
|
|
|
if (src1_wide) {
|
|
neon_load_reg64(rn0_64, a->vn);
|
|
} else {
|
|
TCGv_i32 tmp = neon_load_reg(a->vn, 0);
|
|
widenfn(rn0_64, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
rm = neon_load_reg(a->vm, 0);
|
|
|
|
widenfn(rm_64, rm);
|
|
tcg_temp_free_i32(rm);
|
|
opfn(rn0_64, rn0_64, rm_64);
|
|
|
|
/*
|
|
* Load second pass inputs before storing the first pass result, to
|
|
* avoid incorrect results if a narrow input overlaps with the result.
|
|
*/
|
|
if (src1_wide) {
|
|
neon_load_reg64(rn1_64, a->vn + 1);
|
|
} else {
|
|
TCGv_i32 tmp = neon_load_reg(a->vn, 1);
|
|
widenfn(rn1_64, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
rm = neon_load_reg(a->vm, 1);
|
|
|
|
neon_store_reg64(rn0_64, a->vd);
|
|
|
|
widenfn(rm_64, rm);
|
|
tcg_temp_free_i32(rm);
|
|
opfn(rn1_64, rn1_64, rm_64);
|
|
neon_store_reg64(rn1_64, a->vd + 1);
|
|
|
|
tcg_temp_free_i64(rn0_64);
|
|
tcg_temp_free_i64(rn1_64);
|
|
tcg_temp_free_i64(rm_64);
|
|
|
|
return true;
|
|
}
|
|
|
|
#define DO_PREWIDEN(INSN, S, EXT, OP, SRC1WIDE) \
|
|
static bool trans_##INSN##_3d(DisasContext *s, arg_3diff *a) \
|
|
{ \
|
|
static NeonGenWidenFn * const widenfn[] = { \
|
|
gen_helper_neon_widen_##S##8, \
|
|
gen_helper_neon_widen_##S##16, \
|
|
tcg_gen_##EXT##_i32_i64, \
|
|
NULL, \
|
|
}; \
|
|
static NeonGenTwo64OpFn * const addfn[] = { \
|
|
gen_helper_neon_##OP##l_u16, \
|
|
gen_helper_neon_##OP##l_u32, \
|
|
tcg_gen_##OP##_i64, \
|
|
NULL, \
|
|
}; \
|
|
return do_prewiden_3d(s, a, widenfn[a->size], \
|
|
addfn[a->size], SRC1WIDE); \
|
|
}
|
|
|
|
DO_PREWIDEN(VADDL_S, s, ext, add, false)
|
|
DO_PREWIDEN(VADDL_U, u, extu, add, false)
|
|
DO_PREWIDEN(VSUBL_S, s, ext, sub, false)
|
|
DO_PREWIDEN(VSUBL_U, u, extu, sub, false)
|
|
DO_PREWIDEN(VADDW_S, s, ext, add, true)
|
|
DO_PREWIDEN(VADDW_U, u, extu, add, true)
|
|
DO_PREWIDEN(VSUBW_S, s, ext, sub, true)
|
|
DO_PREWIDEN(VSUBW_U, u, extu, sub, true)
|
|
|
|
static bool do_narrow_3d(DisasContext *s, arg_3diff *a,
|
|
NeonGenTwo64OpFn *opfn, NeonGenNarrowFn *narrowfn)
|
|
{
|
|
/* 3-regs different lengths, narrowing (VADDHN/VSUBHN/VRADDHN/VRSUBHN) */
|
|
TCGv_i64 rn_64, rm_64;
|
|
TCGv_i32 rd0, rd1;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (!opfn || !narrowfn) {
|
|
/* size == 3 case, which is an entirely different insn group */
|
|
return false;
|
|
}
|
|
|
|
if ((a->vn | a->vm) & 1) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
rn_64 = tcg_temp_new_i64();
|
|
rm_64 = tcg_temp_new_i64();
|
|
rd0 = tcg_temp_new_i32();
|
|
rd1 = tcg_temp_new_i32();
|
|
|
|
neon_load_reg64(rn_64, a->vn);
|
|
neon_load_reg64(rm_64, a->vm);
|
|
|
|
opfn(rn_64, rn_64, rm_64);
|
|
|
|
narrowfn(rd0, rn_64);
|
|
|
|
neon_load_reg64(rn_64, a->vn + 1);
|
|
neon_load_reg64(rm_64, a->vm + 1);
|
|
|
|
opfn(rn_64, rn_64, rm_64);
|
|
|
|
narrowfn(rd1, rn_64);
|
|
|
|
neon_store_reg(a->vd, 0, rd0);
|
|
neon_store_reg(a->vd, 1, rd1);
|
|
|
|
tcg_temp_free_i64(rn_64);
|
|
tcg_temp_free_i64(rm_64);
|
|
|
|
return true;
|
|
}
|
|
|
|
#define DO_NARROW_3D(INSN, OP, NARROWTYPE, EXTOP) \
|
|
static bool trans_##INSN##_3d(DisasContext *s, arg_3diff *a) \
|
|
{ \
|
|
static NeonGenTwo64OpFn * const addfn[] = { \
|
|
gen_helper_neon_##OP##l_u16, \
|
|
gen_helper_neon_##OP##l_u32, \
|
|
tcg_gen_##OP##_i64, \
|
|
NULL, \
|
|
}; \
|
|
static NeonGenNarrowFn * const narrowfn[] = { \
|
|
gen_helper_neon_##NARROWTYPE##_high_u8, \
|
|
gen_helper_neon_##NARROWTYPE##_high_u16, \
|
|
EXTOP, \
|
|
NULL, \
|
|
}; \
|
|
return do_narrow_3d(s, a, addfn[a->size], narrowfn[a->size]); \
|
|
}
|
|
|
|
static void gen_narrow_round_high_u32(TCGv_i32 rd, TCGv_i64 rn)
|
|
{
|
|
tcg_gen_addi_i64(rn, rn, 1u << 31);
|
|
tcg_gen_extrh_i64_i32(rd, rn);
|
|
}
|
|
|
|
DO_NARROW_3D(VADDHN, add, narrow, tcg_gen_extrh_i64_i32)
|
|
DO_NARROW_3D(VSUBHN, sub, narrow, tcg_gen_extrh_i64_i32)
|
|
DO_NARROW_3D(VRADDHN, add, narrow_round, gen_narrow_round_high_u32)
|
|
DO_NARROW_3D(VRSUBHN, sub, narrow_round, gen_narrow_round_high_u32)
|
|
|
|
static bool do_long_3d(DisasContext *s, arg_3diff *a,
|
|
NeonGenTwoOpWidenFn *opfn,
|
|
NeonGenTwo64OpFn *accfn)
|
|
{
|
|
/*
|
|
* 3-regs different lengths, long operations.
|
|
* These perform an operation on two inputs that returns a double-width
|
|
* result, and then possibly perform an accumulation operation of
|
|
* that result into the double-width destination.
|
|
*/
|
|
TCGv_i64 rd0, rd1, tmp;
|
|
TCGv_i32 rn, rm;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (!opfn) {
|
|
/* size == 3 case, which is an entirely different insn group */
|
|
return false;
|
|
}
|
|
|
|
if (a->vd & 1) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
rd0 = tcg_temp_new_i64();
|
|
rd1 = tcg_temp_new_i64();
|
|
|
|
rn = neon_load_reg(a->vn, 0);
|
|
rm = neon_load_reg(a->vm, 0);
|
|
opfn(rd0, rn, rm);
|
|
tcg_temp_free_i32(rn);
|
|
tcg_temp_free_i32(rm);
|
|
|
|
rn = neon_load_reg(a->vn, 1);
|
|
rm = neon_load_reg(a->vm, 1);
|
|
opfn(rd1, rn, rm);
|
|
tcg_temp_free_i32(rn);
|
|
tcg_temp_free_i32(rm);
|
|
|
|
/* Don't store results until after all loads: they might overlap */
|
|
if (accfn) {
|
|
tmp = tcg_temp_new_i64();
|
|
neon_load_reg64(tmp, a->vd);
|
|
accfn(tmp, tmp, rd0);
|
|
neon_store_reg64(tmp, a->vd);
|
|
neon_load_reg64(tmp, a->vd + 1);
|
|
accfn(tmp, tmp, rd1);
|
|
neon_store_reg64(tmp, a->vd + 1);
|
|
tcg_temp_free_i64(tmp);
|
|
} else {
|
|
neon_store_reg64(rd0, a->vd);
|
|
neon_store_reg64(rd1, a->vd + 1);
|
|
}
|
|
|
|
tcg_temp_free_i64(rd0);
|
|
tcg_temp_free_i64(rd1);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VABDL_S_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_abdl_s16,
|
|
gen_helper_neon_abdl_s32,
|
|
gen_helper_neon_abdl_s64,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static bool trans_VABDL_U_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_abdl_u16,
|
|
gen_helper_neon_abdl_u32,
|
|
gen_helper_neon_abdl_u64,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static bool trans_VABAL_S_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_abdl_s16,
|
|
gen_helper_neon_abdl_s32,
|
|
gen_helper_neon_abdl_s64,
|
|
NULL,
|
|
};
|
|
static NeonGenTwo64OpFn * const addfn[] = {
|
|
gen_helper_neon_addl_u16,
|
|
gen_helper_neon_addl_u32,
|
|
tcg_gen_add_i64,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], addfn[a->size]);
|
|
}
|
|
|
|
static bool trans_VABAL_U_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_abdl_u16,
|
|
gen_helper_neon_abdl_u32,
|
|
gen_helper_neon_abdl_u64,
|
|
NULL,
|
|
};
|
|
static NeonGenTwo64OpFn * const addfn[] = {
|
|
gen_helper_neon_addl_u16,
|
|
gen_helper_neon_addl_u32,
|
|
tcg_gen_add_i64,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], addfn[a->size]);
|
|
}
|
|
|
|
static void gen_mull_s32(TCGv_i64 rd, TCGv_i32 rn, TCGv_i32 rm)
|
|
{
|
|
TCGv_i32 lo = tcg_temp_new_i32();
|
|
TCGv_i32 hi = tcg_temp_new_i32();
|
|
|
|
tcg_gen_muls2_i32(lo, hi, rn, rm);
|
|
tcg_gen_concat_i32_i64(rd, lo, hi);
|
|
|
|
tcg_temp_free_i32(lo);
|
|
tcg_temp_free_i32(hi);
|
|
}
|
|
|
|
static void gen_mull_u32(TCGv_i64 rd, TCGv_i32 rn, TCGv_i32 rm)
|
|
{
|
|
TCGv_i32 lo = tcg_temp_new_i32();
|
|
TCGv_i32 hi = tcg_temp_new_i32();
|
|
|
|
tcg_gen_mulu2_i32(lo, hi, rn, rm);
|
|
tcg_gen_concat_i32_i64(rd, lo, hi);
|
|
|
|
tcg_temp_free_i32(lo);
|
|
tcg_temp_free_i32(hi);
|
|
}
|
|
|
|
static bool trans_VMULL_S_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_mull_s8,
|
|
gen_helper_neon_mull_s16,
|
|
gen_mull_s32,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static bool trans_VMULL_U_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
gen_helper_neon_mull_u8,
|
|
gen_helper_neon_mull_u16,
|
|
gen_mull_u32,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
#define DO_VMLAL(INSN,MULL,ACC) \
|
|
static bool trans_##INSN##_3d(DisasContext *s, arg_3diff *a) \
|
|
{ \
|
|
static NeonGenTwoOpWidenFn * const opfn[] = { \
|
|
gen_helper_neon_##MULL##8, \
|
|
gen_helper_neon_##MULL##16, \
|
|
gen_##MULL##32, \
|
|
NULL, \
|
|
}; \
|
|
static NeonGenTwo64OpFn * const accfn[] = { \
|
|
gen_helper_neon_##ACC##l_u16, \
|
|
gen_helper_neon_##ACC##l_u32, \
|
|
tcg_gen_##ACC##_i64, \
|
|
NULL, \
|
|
}; \
|
|
return do_long_3d(s, a, opfn[a->size], accfn[a->size]); \
|
|
}
|
|
|
|
DO_VMLAL(VMLAL_S,mull_s,add)
|
|
DO_VMLAL(VMLAL_U,mull_u,add)
|
|
DO_VMLAL(VMLSL_S,mull_s,sub)
|
|
DO_VMLAL(VMLSL_U,mull_u,sub)
|
|
|
|
static void gen_VQDMULL_16(TCGv_i64 rd, TCGv_i32 rn, TCGv_i32 rm)
|
|
{
|
|
gen_helper_neon_mull_s16(rd, rn, rm);
|
|
gen_helper_neon_addl_saturate_s32(rd, cpu_env, rd, rd);
|
|
}
|
|
|
|
static void gen_VQDMULL_32(TCGv_i64 rd, TCGv_i32 rn, TCGv_i32 rm)
|
|
{
|
|
gen_mull_s32(rd, rn, rm);
|
|
gen_helper_neon_addl_saturate_s64(rd, cpu_env, rd, rd);
|
|
}
|
|
|
|
static bool trans_VQDMULL_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
NULL,
|
|
gen_VQDMULL_16,
|
|
gen_VQDMULL_32,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static void gen_VQDMLAL_acc_16(TCGv_i64 rd, TCGv_i64 rn, TCGv_i64 rm)
|
|
{
|
|
gen_helper_neon_addl_saturate_s32(rd, cpu_env, rn, rm);
|
|
}
|
|
|
|
static void gen_VQDMLAL_acc_32(TCGv_i64 rd, TCGv_i64 rn, TCGv_i64 rm)
|
|
{
|
|
gen_helper_neon_addl_saturate_s64(rd, cpu_env, rn, rm);
|
|
}
|
|
|
|
static bool trans_VQDMLAL_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
NULL,
|
|
gen_VQDMULL_16,
|
|
gen_VQDMULL_32,
|
|
NULL,
|
|
};
|
|
static NeonGenTwo64OpFn * const accfn[] = {
|
|
NULL,
|
|
gen_VQDMLAL_acc_16,
|
|
gen_VQDMLAL_acc_32,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|
|
|
|
static void gen_VQDMLSL_acc_16(TCGv_i64 rd, TCGv_i64 rn, TCGv_i64 rm)
|
|
{
|
|
gen_helper_neon_negl_u32(rm, rm);
|
|
gen_helper_neon_addl_saturate_s32(rd, cpu_env, rn, rm);
|
|
}
|
|
|
|
static void gen_VQDMLSL_acc_32(TCGv_i64 rd, TCGv_i64 rn, TCGv_i64 rm)
|
|
{
|
|
tcg_gen_neg_i64(rm, rm);
|
|
gen_helper_neon_addl_saturate_s64(rd, cpu_env, rn, rm);
|
|
}
|
|
|
|
static bool trans_VQDMLSL_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
static NeonGenTwoOpWidenFn * const opfn[] = {
|
|
NULL,
|
|
gen_VQDMULL_16,
|
|
gen_VQDMULL_32,
|
|
NULL,
|
|
};
|
|
static NeonGenTwo64OpFn * const accfn[] = {
|
|
NULL,
|
|
gen_VQDMLSL_acc_16,
|
|
gen_VQDMLSL_acc_32,
|
|
NULL,
|
|
};
|
|
|
|
return do_long_3d(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|
|
|
|
static bool trans_VMULL_P_3d(DisasContext *s, arg_3diff *a)
|
|
{
|
|
gen_helper_gvec_3 *fn_gvec;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (a->vd & 1) {
|
|
return false;
|
|
}
|
|
|
|
switch (a->size) {
|
|
case 0:
|
|
fn_gvec = gen_helper_neon_pmull_h;
|
|
break;
|
|
case 2:
|
|
if (!dc_isar_feature(aa32_pmull, s)) {
|
|
return false;
|
|
}
|
|
fn_gvec = gen_helper_gvec_pmull_q;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
tcg_gen_gvec_3_ool(neon_reg_offset(a->vd, 0),
|
|
neon_reg_offset(a->vn, 0),
|
|
neon_reg_offset(a->vm, 0),
|
|
16, 16, 0, fn_gvec);
|
|
return true;
|
|
}
|
|
|
|
static void gen_neon_dup_low16(TCGv_i32 var)
|
|
{
|
|
TCGv_i32 tmp = tcg_temp_new_i32();
|
|
tcg_gen_ext16u_i32(var, var);
|
|
tcg_gen_shli_i32(tmp, var, 16);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
|
|
static void gen_neon_dup_high16(TCGv_i32 var)
|
|
{
|
|
TCGv_i32 tmp = tcg_temp_new_i32();
|
|
tcg_gen_andi_i32(var, var, 0xffff0000);
|
|
tcg_gen_shri_i32(tmp, var, 16);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
|
|
static inline TCGv_i32 neon_get_scalar(int size, int reg)
|
|
{
|
|
TCGv_i32 tmp;
|
|
if (size == 1) {
|
|
tmp = neon_load_reg(reg & 7, reg >> 4);
|
|
if (reg & 8) {
|
|
gen_neon_dup_high16(tmp);
|
|
} else {
|
|
gen_neon_dup_low16(tmp);
|
|
}
|
|
} else {
|
|
tmp = neon_load_reg(reg & 15, reg >> 4);
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
static bool do_2scalar(DisasContext *s, arg_2scalar *a,
|
|
NeonGenTwoOpFn *opfn, NeonGenTwoOpFn *accfn)
|
|
{
|
|
/*
|
|
* Two registers and a scalar: perform an operation between
|
|
* the input elements and the scalar, and then possibly
|
|
* perform an accumulation operation of that result into the
|
|
* destination.
|
|
*/
|
|
TCGv_i32 scalar;
|
|
int pass;
|
|
|
|
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
|
|
return false;
|
|
}
|
|
|
|
/* UNDEF accesses to D16-D31 if they don't exist. */
|
|
if (!dc_isar_feature(aa32_simd_r32, s) &&
|
|
((a->vd | a->vn | a->vm) & 0x10)) {
|
|
return false;
|
|
}
|
|
|
|
if (!opfn) {
|
|
/* Bad size (including size == 3, which is a different insn group) */
|
|
return false;
|
|
}
|
|
|
|
if (a->q && ((a->vd | a->vn) & 1)) {
|
|
return false;
|
|
}
|
|
|
|
if (!vfp_access_check(s)) {
|
|
return true;
|
|
}
|
|
|
|
scalar = neon_get_scalar(a->size, a->vm);
|
|
|
|
for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
|
|
TCGv_i32 tmp = neon_load_reg(a->vn, pass);
|
|
opfn(tmp, tmp, scalar);
|
|
if (accfn) {
|
|
TCGv_i32 rd = neon_load_reg(a->vd, pass);
|
|
accfn(tmp, rd, tmp);
|
|
tcg_temp_free_i32(rd);
|
|
}
|
|
neon_store_reg(a->vd, pass, tmp);
|
|
}
|
|
tcg_temp_free_i32(scalar);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_VMUL_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
gen_helper_neon_mul_u16,
|
|
tcg_gen_mul_i32,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static bool trans_VMLA_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
gen_helper_neon_mul_u16,
|
|
tcg_gen_mul_i32,
|
|
NULL,
|
|
};
|
|
static NeonGenTwoOpFn * const accfn[] = {
|
|
NULL,
|
|
gen_helper_neon_add_u16,
|
|
tcg_gen_add_i32,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|
|
|
|
static bool trans_VMLS_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
gen_helper_neon_mul_u16,
|
|
tcg_gen_mul_i32,
|
|
NULL,
|
|
};
|
|
static NeonGenTwoOpFn * const accfn[] = {
|
|
NULL,
|
|
gen_helper_neon_sub_u16,
|
|
tcg_gen_sub_i32,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|
|
|
|
/*
|
|
* Rather than have a float-specific version of do_2scalar just for
|
|
* three insns, we wrap a NeonGenTwoSingleOpFn to turn it into
|
|
* a NeonGenTwoOpFn.
|
|
*/
|
|
#define WRAP_FP_FN(WRAPNAME, FUNC) \
|
|
static void WRAPNAME(TCGv_i32 rd, TCGv_i32 rn, TCGv_i32 rm) \
|
|
{ \
|
|
TCGv_ptr fpstatus = get_fpstatus_ptr(1); \
|
|
FUNC(rd, rn, rm, fpstatus); \
|
|
tcg_temp_free_ptr(fpstatus); \
|
|
}
|
|
|
|
WRAP_FP_FN(gen_VMUL_F_mul, gen_helper_vfp_muls)
|
|
WRAP_FP_FN(gen_VMUL_F_add, gen_helper_vfp_adds)
|
|
WRAP_FP_FN(gen_VMUL_F_sub, gen_helper_vfp_subs)
|
|
|
|
static bool trans_VMUL_F_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
NULL, /* TODO: fp16 support */
|
|
gen_VMUL_F_mul,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], NULL);
|
|
}
|
|
|
|
static bool trans_VMLA_F_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
NULL, /* TODO: fp16 support */
|
|
gen_VMUL_F_mul,
|
|
NULL,
|
|
};
|
|
static NeonGenTwoOpFn * const accfn[] = {
|
|
NULL,
|
|
NULL, /* TODO: fp16 support */
|
|
gen_VMUL_F_add,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|
|
|
|
static bool trans_VMLS_F_2sc(DisasContext *s, arg_2scalar *a)
|
|
{
|
|
static NeonGenTwoOpFn * const opfn[] = {
|
|
NULL,
|
|
NULL, /* TODO: fp16 support */
|
|
gen_VMUL_F_mul,
|
|
NULL,
|
|
};
|
|
static NeonGenTwoOpFn * const accfn[] = {
|
|
NULL,
|
|
NULL, /* TODO: fp16 support */
|
|
gen_VMUL_F_sub,
|
|
NULL,
|
|
};
|
|
|
|
return do_2scalar(s, a, opfn[a->size], accfn[a->size]);
|
|
}
|