target/mips: msa: Split helpers for SUBSUS_U.<B|H|W|D>
Achieves clearer code and slightly better performance. Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Message-Id: <20200613152133.8964-12-aleksandar.qemu.devel@gmail.com>
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@ -988,6 +988,11 @@ DEF_HELPER_4(msa_subs_u_h, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subs_u_w, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subs_u_d, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subsus_u_b, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subsus_u_h, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subsus_u_w, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_subsus_u_d, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_ilvev_b, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_ilvev_h, void, env, i32, i32, i32)
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DEF_HELPER_4(msa_ilvev_w, void, env, i32, i32, i32)
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@ -1084,7 +1089,6 @@ DEF_HELPER_5(msa_srlri_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_binsl_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_binsr_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_subv_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_subsus_u_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_subsuu_s_df, void, env, i32, i32, i32, i32)
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DEF_HELPER_5(msa_mulv_df, void, env, i32, i32, i32, i32)
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@ -3802,6 +3802,90 @@ void helper_msa_subs_u_d(CPUMIPSState *env,
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}
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static inline int64_t msa_subsus_u_df(uint32_t df, int64_t arg1, int64_t arg2)
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{
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uint64_t u_arg1 = UNSIGNED(arg1, df);
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uint64_t max_uint = DF_MAX_UINT(df);
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if (arg2 >= 0) {
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uint64_t u_arg2 = (uint64_t)arg2;
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return (u_arg1 > u_arg2) ?
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(int64_t)(u_arg1 - u_arg2) :
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0;
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} else {
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uint64_t u_arg2 = (uint64_t)(-arg2);
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return (u_arg1 < max_uint - u_arg2) ?
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(int64_t)(u_arg1 + u_arg2) :
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(int64_t)max_uint;
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}
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}
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void helper_msa_subsus_u_b(CPUMIPSState *env,
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uint32_t wd, uint32_t ws, uint32_t wt)
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{
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wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
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wr_t *pws = &(env->active_fpu.fpr[ws].wr);
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wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
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pwd->b[0] = msa_subsus_u_df(DF_BYTE, pws->b[0], pwt->b[0]);
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pwd->b[1] = msa_subsus_u_df(DF_BYTE, pws->b[1], pwt->b[1]);
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pwd->b[2] = msa_subsus_u_df(DF_BYTE, pws->b[2], pwt->b[2]);
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pwd->b[3] = msa_subsus_u_df(DF_BYTE, pws->b[3], pwt->b[3]);
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pwd->b[4] = msa_subsus_u_df(DF_BYTE, pws->b[4], pwt->b[4]);
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pwd->b[5] = msa_subsus_u_df(DF_BYTE, pws->b[5], pwt->b[5]);
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pwd->b[6] = msa_subsus_u_df(DF_BYTE, pws->b[6], pwt->b[6]);
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pwd->b[7] = msa_subsus_u_df(DF_BYTE, pws->b[7], pwt->b[7]);
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pwd->b[8] = msa_subsus_u_df(DF_BYTE, pws->b[8], pwt->b[8]);
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pwd->b[9] = msa_subsus_u_df(DF_BYTE, pws->b[9], pwt->b[9]);
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pwd->b[10] = msa_subsus_u_df(DF_BYTE, pws->b[10], pwt->b[10]);
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pwd->b[11] = msa_subsus_u_df(DF_BYTE, pws->b[11], pwt->b[11]);
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pwd->b[12] = msa_subsus_u_df(DF_BYTE, pws->b[12], pwt->b[12]);
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pwd->b[13] = msa_subsus_u_df(DF_BYTE, pws->b[13], pwt->b[13]);
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pwd->b[14] = msa_subsus_u_df(DF_BYTE, pws->b[14], pwt->b[14]);
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pwd->b[15] = msa_subsus_u_df(DF_BYTE, pws->b[15], pwt->b[15]);
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}
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void helper_msa_subsus_u_h(CPUMIPSState *env,
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uint32_t wd, uint32_t ws, uint32_t wt)
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{
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wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
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wr_t *pws = &(env->active_fpu.fpr[ws].wr);
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wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
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pwd->h[0] = msa_subsus_u_df(DF_HALF, pws->h[0], pwt->h[0]);
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pwd->h[1] = msa_subsus_u_df(DF_HALF, pws->h[1], pwt->h[1]);
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pwd->h[2] = msa_subsus_u_df(DF_HALF, pws->h[2], pwt->h[2]);
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pwd->h[3] = msa_subsus_u_df(DF_HALF, pws->h[3], pwt->h[3]);
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pwd->h[4] = msa_subsus_u_df(DF_HALF, pws->h[4], pwt->h[4]);
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pwd->h[5] = msa_subsus_u_df(DF_HALF, pws->h[5], pwt->h[5]);
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pwd->h[6] = msa_subsus_u_df(DF_HALF, pws->h[6], pwt->h[6]);
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pwd->h[7] = msa_subsus_u_df(DF_HALF, pws->h[7], pwt->h[7]);
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}
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void helper_msa_subsus_u_w(CPUMIPSState *env,
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uint32_t wd, uint32_t ws, uint32_t wt)
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{
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wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
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wr_t *pws = &(env->active_fpu.fpr[ws].wr);
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wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
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pwd->w[0] = msa_subsus_u_df(DF_WORD, pws->w[0], pwt->w[0]);
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pwd->w[1] = msa_subsus_u_df(DF_WORD, pws->w[1], pwt->w[1]);
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pwd->w[2] = msa_subsus_u_df(DF_WORD, pws->w[2], pwt->w[2]);
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pwd->w[3] = msa_subsus_u_df(DF_WORD, pws->w[3], pwt->w[3]);
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}
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void helper_msa_subsus_u_d(CPUMIPSState *env,
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uint32_t wd, uint32_t ws, uint32_t wt)
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{
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wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
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wr_t *pws = &(env->active_fpu.fpr[ws].wr);
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wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
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pwd->d[0] = msa_subsus_u_df(DF_DOUBLE, pws->d[0], pwt->d[0]);
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pwd->d[1] = msa_subsus_u_df(DF_DOUBLE, pws->d[1], pwt->d[1]);
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}
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/*
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* Interleave
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* ----------
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@ -5212,23 +5296,6 @@ MSA_TEROP_IMMU_DF(binsli, binsl)
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MSA_TEROP_IMMU_DF(binsri, binsr)
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#undef MSA_TEROP_IMMU_DF
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static inline int64_t msa_subsus_u_df(uint32_t df, int64_t arg1, int64_t arg2)
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{
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uint64_t u_arg1 = UNSIGNED(arg1, df);
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uint64_t max_uint = DF_MAX_UINT(df);
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if (arg2 >= 0) {
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uint64_t u_arg2 = (uint64_t)arg2;
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return (u_arg1 > u_arg2) ?
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(int64_t)(u_arg1 - u_arg2) :
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0;
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} else {
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uint64_t u_arg2 = (uint64_t)(-arg2);
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return (u_arg1 < max_uint - u_arg2) ?
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(int64_t)(u_arg1 + u_arg2) :
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(int64_t)max_uint;
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}
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}
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static inline int64_t msa_subsuu_s_df(uint32_t df, int64_t arg1, int64_t arg2)
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{
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uint64_t u_arg1 = UNSIGNED(arg1, df);
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@ -5369,7 +5436,6 @@ void helper_msa_ ## func ## _df(CPUMIPSState *env, uint32_t df, \
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}
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MSA_BINOP_DF(subv)
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MSA_BINOP_DF(subsus_u)
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MSA_BINOP_DF(subsuu_s)
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MSA_BINOP_DF(mulv)
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@ -29346,7 +29346,20 @@ static void gen_msa_3r(CPUMIPSState *env, DisasContext *ctx)
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gen_helper_msa_splat_df(cpu_env, tdf, twd, tws, twt);
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break;
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case OPC_SUBSUS_U_df:
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gen_helper_msa_subsus_u_df(cpu_env, tdf, twd, tws, twt);
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switch (df) {
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case DF_BYTE:
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gen_helper_msa_subsus_u_b(cpu_env, twd, tws, twt);
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break;
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case DF_HALF:
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gen_helper_msa_subsus_u_h(cpu_env, twd, tws, twt);
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break;
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case DF_WORD:
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gen_helper_msa_subsus_u_w(cpu_env, twd, tws, twt);
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break;
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case DF_DOUBLE:
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gen_helper_msa_subsus_u_d(cpu_env, twd, tws, twt);
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break;
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}
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break;
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case OPC_SUBSUU_S_df:
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gen_helper_msa_subsuu_s_df(cpu_env, tdf, twd, tws, twt);
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