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https://gitlab.com/qemu-project/qemu
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15fc6badbd
The semantics of a mem_noshuf packet are that the store effectively happens before the load. However, in cases where the load raises an exception, we cannot simply execute the store first. This change adds a probe to check that the load will not raise an exception before executing the store. If the load is predicated, this requires special handling. We check the condition before performing the probe. Since, we need the EA to perform the check, we move the GET_EA portion inside CHECK_NOSHUF_PRED. Test case added in tests/tcg/hexagon/mem_noshuf_exception.c Suggested-by: Alessandro Di Federico <ale@rev.ng> Suggested-by: Anton Johansson <anjo@rev.ng> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220707210546.15985-3-tsimpson@quicinc.com>
111 lines
4.4 KiB
C
111 lines
4.4 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "internal.h"
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#include "helper_protos_generated.h.inc"
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DEF_HELPER_FLAGS_2(raise_exception, TCG_CALL_NO_RETURN, noreturn, env, i32)
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DEF_HELPER_1(debug_start_packet, void, env)
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DEF_HELPER_FLAGS_3(debug_check_store_width, TCG_CALL_NO_WG, void, env, int, int)
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DEF_HELPER_FLAGS_3(debug_commit_end, TCG_CALL_NO_WG, void, env, int, int)
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DEF_HELPER_2(commit_store, void, env, int)
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DEF_HELPER_3(gather_store, void, env, i32, int)
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DEF_HELPER_1(commit_hvx_stores, void, env)
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DEF_HELPER_FLAGS_4(fcircadd, TCG_CALL_NO_RWG_SE, s32, s32, s32, s32, s32)
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DEF_HELPER_FLAGS_1(fbrev, TCG_CALL_NO_RWG_SE, i32, i32)
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DEF_HELPER_3(sfrecipa, i64, env, f32, f32)
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DEF_HELPER_2(sfinvsqrta, i64, env, f32)
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DEF_HELPER_4(vacsh_val, s64, env, s64, s64, s64)
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DEF_HELPER_FLAGS_4(vacsh_pred, TCG_CALL_NO_RWG_SE, s32, env, s64, s64, s64)
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/* Floating point */
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DEF_HELPER_2(conv_sf2df, f64, env, f32)
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DEF_HELPER_2(conv_df2sf, f32, env, f64)
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DEF_HELPER_2(conv_uw2sf, f32, env, s32)
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DEF_HELPER_2(conv_uw2df, f64, env, s32)
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DEF_HELPER_2(conv_w2sf, f32, env, s32)
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DEF_HELPER_2(conv_w2df, f64, env, s32)
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DEF_HELPER_2(conv_ud2sf, f32, env, s64)
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DEF_HELPER_2(conv_ud2df, f64, env, s64)
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DEF_HELPER_2(conv_d2sf, f32, env, s64)
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DEF_HELPER_2(conv_d2df, f64, env, s64)
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DEF_HELPER_2(conv_sf2uw, i32, env, f32)
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DEF_HELPER_2(conv_sf2w, s32, env, f32)
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DEF_HELPER_2(conv_sf2ud, i64, env, f32)
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DEF_HELPER_2(conv_sf2d, s64, env, f32)
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DEF_HELPER_2(conv_df2uw, i32, env, f64)
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DEF_HELPER_2(conv_df2w, s32, env, f64)
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DEF_HELPER_2(conv_df2ud, i64, env, f64)
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DEF_HELPER_2(conv_df2d, s64, env, f64)
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DEF_HELPER_2(conv_sf2uw_chop, i32, env, f32)
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DEF_HELPER_2(conv_sf2w_chop, s32, env, f32)
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DEF_HELPER_2(conv_sf2ud_chop, i64, env, f32)
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DEF_HELPER_2(conv_sf2d_chop, s64, env, f32)
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DEF_HELPER_2(conv_df2uw_chop, i32, env, f64)
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DEF_HELPER_2(conv_df2w_chop, s32, env, f64)
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DEF_HELPER_2(conv_df2ud_chop, i64, env, f64)
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DEF_HELPER_2(conv_df2d_chop, s64, env, f64)
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DEF_HELPER_3(sfadd, f32, env, f32, f32)
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DEF_HELPER_3(sfsub, f32, env, f32, f32)
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DEF_HELPER_3(sfcmpeq, s32, env, f32, f32)
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DEF_HELPER_3(sfcmpgt, s32, env, f32, f32)
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DEF_HELPER_3(sfcmpge, s32, env, f32, f32)
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DEF_HELPER_3(sfcmpuo, s32, env, f32, f32)
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DEF_HELPER_3(sfmax, f32, env, f32, f32)
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DEF_HELPER_3(sfmin, f32, env, f32, f32)
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DEF_HELPER_3(sfclass, s32, env, f32, s32)
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DEF_HELPER_3(sffixupn, f32, env, f32, f32)
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DEF_HELPER_3(sffixupd, f32, env, f32, f32)
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DEF_HELPER_2(sffixupr, f32, env, f32)
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DEF_HELPER_3(dfadd, f64, env, f64, f64)
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DEF_HELPER_3(dfsub, f64, env, f64, f64)
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DEF_HELPER_3(dfmax, f64, env, f64, f64)
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DEF_HELPER_3(dfmin, f64, env, f64, f64)
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DEF_HELPER_3(dfcmpeq, s32, env, f64, f64)
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DEF_HELPER_3(dfcmpgt, s32, env, f64, f64)
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DEF_HELPER_3(dfcmpge, s32, env, f64, f64)
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DEF_HELPER_3(dfcmpuo, s32, env, f64, f64)
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DEF_HELPER_3(dfclass, s32, env, f64, s32)
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DEF_HELPER_3(sfmpy, f32, env, f32, f32)
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DEF_HELPER_4(sffma, f32, env, f32, f32, f32)
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DEF_HELPER_5(sffma_sc, f32, env, f32, f32, f32, f32)
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DEF_HELPER_4(sffms, f32, env, f32, f32, f32)
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DEF_HELPER_4(sffma_lib, f32, env, f32, f32, f32)
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DEF_HELPER_4(sffms_lib, f32, env, f32, f32, f32)
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DEF_HELPER_3(dfmpyfix, f64, env, f64, f64)
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DEF_HELPER_4(dfmpyhh, f64, env, f64, f64, f64)
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/* Histogram instructions */
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DEF_HELPER_1(vhist, void, env)
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DEF_HELPER_1(vhistq, void, env)
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DEF_HELPER_1(vwhist256, void, env)
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DEF_HELPER_1(vwhist256q, void, env)
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DEF_HELPER_1(vwhist256_sat, void, env)
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DEF_HELPER_1(vwhist256q_sat, void, env)
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DEF_HELPER_1(vwhist128, void, env)
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DEF_HELPER_1(vwhist128q, void, env)
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DEF_HELPER_2(vwhist128m, void, env, s32)
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DEF_HELPER_2(vwhist128qm, void, env, s32)
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DEF_HELPER_4(probe_noshuf_load, void, env, i32, int, int)
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DEF_HELPER_2(probe_pkt_scalar_store_s0, void, env, int)
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DEF_HELPER_2(probe_hvx_stores, void, env, int)
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DEF_HELPER_3(probe_pkt_scalar_hvx_stores, void, env, int, int)
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