Commit 5f148a02 authored by Aleksandar Markovic's avatar Aleksandar Markovic
Browse files

target/mips: msa: Split helpers for MSUBV.<B|H|W|D> 



Achieves clearer code and slightly better performance.

Reviewed-by: default avatarAleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Signed-off-by: default avatarAleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200613152133.8964-3-aleksandar.qemu.devel@gmail.com>
parent 7a7a162a

target/mips/helper.h

+5 −1
Original line number Diff line number Diff line
@@ -955,6 +955,11 @@ DEF_HELPER_4(msa_maddv_h, void, env, i32, i32, i32) 
DEF_HELPER_4(msa_maddv_w, void, env, i32, i32, i32)

DEF_HELPER_4(msa_maddv_d, void, env, i32, i32, i32)



DEF_HELPER_4(msa_msubv_b, void, env, i32, i32, i32)

DEF_HELPER_4(msa_msubv_h, void, env, i32, i32, i32)

DEF_HELPER_4(msa_msubv_w, void, env, i32, i32, i32)

DEF_HELPER_4(msa_msubv_d, void, env, i32, i32, i32)



DEF_HELPER_4(msa_asub_s_b, void, env, i32, i32, i32)

DEF_HELPER_4(msa_asub_s_h, void, env, i32, i32, i32)

DEF_HELPER_4(msa_asub_s_w, void, env, i32, i32, i32)
@@ -1074,7 +1079,6 @@ DEF_HELPER_5(msa_subs_u_df, void, env, i32, i32, i32, i32) 
DEF_HELPER_5(msa_subsus_u_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_subsuu_s_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_mulv_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_msubv_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_dotp_s_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_dotp_u_df, void, env, i32, i32, i32, i32)

DEF_HELPER_5(msa_dpadd_s_df, void, env, i32, i32, i32, i32)

target/mips/msa_helper.c

+72 −7
Original line number Diff line number Diff line
@@ -2955,6 +2955,78 @@ void helper_msa_maddv_d(CPUMIPSState *env, 
    pwd->d[1]  = msa_maddv_df(DF_DOUBLE, pwd->d[1],  pws->d[1],  pwt->d[1]);

}



static inline int64_t msa_msubv_df(uint32_t df, int64_t dest, int64_t arg1,

                                   int64_t arg2)

{

    return dest - arg1 * arg2;

}



void helper_msa_msubv_b(CPUMIPSState *env,

                        uint32_t wd, uint32_t ws, uint32_t wt)

{

    wr_t *pwd = &(env->active_fpu.fpr[wd].wr);

    wr_t *pws = &(env->active_fpu.fpr[ws].wr);

    wr_t *pwt = &(env->active_fpu.fpr[wt].wr);



    pwd->b[0]  = msa_msubv_df(DF_BYTE, pwt->b[0],  pws->b[0],  pwt->b[0]);

    pwd->b[1]  = msa_msubv_df(DF_BYTE, pwt->b[1],  pws->b[1],  pwt->b[1]);

    pwd->b[2]  = msa_msubv_df(DF_BYTE, pwt->b[2],  pws->b[2],  pwt->b[2]);

    pwd->b[3]  = msa_msubv_df(DF_BYTE, pwt->b[3],  pws->b[3],  pwt->b[3]);

    pwd->b[4]  = msa_msubv_df(DF_BYTE, pwt->b[4],  pws->b[4],  pwt->b[4]);

    pwd->b[5]  = msa_msubv_df(DF_BYTE, pwt->b[5],  pws->b[5],  pwt->b[5]);

    pwd->b[6]  = msa_msubv_df(DF_BYTE, pwt->b[6],  pws->b[6],  pwt->b[6]);

    pwd->b[7]  = msa_msubv_df(DF_BYTE, pwt->b[7],  pws->b[7],  pwt->b[7]);

    pwd->b[8]  = msa_msubv_df(DF_BYTE, pwt->b[8],  pws->b[8],  pwt->b[8]);

    pwd->b[9]  = msa_msubv_df(DF_BYTE, pwt->b[9],  pws->b[9],  pwt->b[9]);

    pwd->b[10] = msa_msubv_df(DF_BYTE, pwt->b[10], pws->b[10], pwt->b[10]);

    pwd->b[11] = msa_msubv_df(DF_BYTE, pwt->b[11], pws->b[11], pwt->b[11]);

    pwd->b[12] = msa_msubv_df(DF_BYTE, pwt->b[12], pws->b[12], pwt->b[12]);

    pwd->b[13] = msa_msubv_df(DF_BYTE, pwt->b[13], pws->b[13], pwt->b[13]);

    pwd->b[14] = msa_msubv_df(DF_BYTE, pwt->b[14], pws->b[14], pwt->b[14]);

    pwd->b[15] = msa_msubv_df(DF_BYTE, pwt->b[15], pws->b[15], pwt->b[15]);

}



void helper_msa_msubv_h(CPUMIPSState *env,

                        uint32_t wd, uint32_t ws, uint32_t wt)

{

    wr_t *pwd = &(env->active_fpu.fpr[wd].wr);

    wr_t *pws = &(env->active_fpu.fpr[ws].wr);

    wr_t *pwt = &(env->active_fpu.fpr[wt].wr);



    pwd->h[0]  = msa_msubv_df(DF_HALF, pwd->h[0],  pws->h[0],  pwt->h[0]);

    pwd->h[1]  = msa_msubv_df(DF_HALF, pwd->h[1],  pws->h[1],  pwt->h[1]);

    pwd->h[2]  = msa_msubv_df(DF_HALF, pwd->h[2],  pws->h[2],  pwt->h[2]);

    pwd->h[3]  = msa_msubv_df(DF_HALF, pwd->h[3],  pws->h[3],  pwt->h[3]);

    pwd->h[4]  = msa_msubv_df(DF_HALF, pwd->h[4],  pws->h[4],  pwt->h[4]);

    pwd->h[5]  = msa_msubv_df(DF_HALF, pwd->h[5],  pws->h[5],  pwt->h[5]);

    pwd->h[6]  = msa_msubv_df(DF_HALF, pwd->h[6],  pws->h[6],  pwt->h[6]);

    pwd->h[7]  = msa_msubv_df(DF_HALF, pwd->h[7],  pws->h[7],  pwt->h[7]);

}



void helper_msa_msubv_w(CPUMIPSState *env,

                        uint32_t wd, uint32_t ws, uint32_t wt)

{

    wr_t *pwd = &(env->active_fpu.fpr[wd].wr);

    wr_t *pws = &(env->active_fpu.fpr[ws].wr);

    wr_t *pwt = &(env->active_fpu.fpr[wt].wr);



    pwd->w[0]  = msa_msubv_df(DF_WORD, pwd->w[0],  pws->w[0],  pwt->w[0]);

    pwd->w[1]  = msa_msubv_df(DF_WORD, pwd->w[1],  pws->w[1],  pwt->w[1]);

    pwd->w[2]  = msa_msubv_df(DF_WORD, pwd->w[2],  pws->w[2],  pwt->w[2]);

    pwd->w[3]  = msa_msubv_df(DF_WORD, pwd->w[3],  pws->w[3],  pwt->w[3]);

}



void helper_msa_msubv_d(CPUMIPSState *env,

                        uint32_t wd, uint32_t ws, uint32_t wt)

{

    wr_t *pwd = &(env->active_fpu.fpr[wd].wr);

    wr_t *pws = &(env->active_fpu.fpr[ws].wr);

    wr_t *pwt = &(env->active_fpu.fpr[wt].wr);



    pwd->d[0]  = msa_msubv_df(DF_DOUBLE, pwd->d[0],  pws->d[0],  pwt->d[0]);

    pwd->d[1]  = msa_msubv_df(DF_DOUBLE, pwd->d[1],  pws->d[1],  pwt->d[1]);

}





/*

 * Int Subtract
@@ -4886,12 +4958,6 @@ void helper_msa_sld_df(CPUMIPSState *env, uint32_t df, uint32_t wd, 
    msa_sld_df(df, pwd, pws, env->active_tc.gpr[rt]);

}



static inline int64_t msa_msubv_df(uint32_t df, int64_t dest, int64_t arg1,

                                   int64_t arg2)

{

    return dest - arg1 * arg2;

}



static inline int64_t msa_dpadd_s_df(uint32_t df, int64_t dest, int64_t arg1,

                                     int64_t arg2)

{
@@ -5066,7 +5132,6 @@ void helper_msa_ ## func ## _df(CPUMIPSState *env, uint32_t df, uint32_t wd, \ 
    }                                                                         \

}



MSA_TEROP_DF(msubv)

MSA_TEROP_DF(dpadd_s)

MSA_TEROP_DF(dpadd_u)

MSA_TEROP_DF(dpsub_s)

target/mips/translate.c

+16 −3
Original line number Diff line number Diff line
@@ -29074,6 +29074,22 @@ static void gen_msa_3r(CPUMIPSState *env, DisasContext *ctx) 
            break;

        }

        break;

    case OPC_MSUBV_df:

        switch (df) {

        case DF_BYTE:

            gen_helper_msa_msubv_b(cpu_env, twd, tws, twt);

            break;

        case DF_HALF:

            gen_helper_msa_msubv_h(cpu_env, twd, tws, twt);

            break;

        case DF_WORD:

            gen_helper_msa_msubv_w(cpu_env, twd, tws, twt);

            break;

        case DF_DOUBLE:

            gen_helper_msa_msubv_d(cpu_env, twd, tws, twt);

            break;

        }

        break;

    case OPC_ASUB_S_df:

        switch (df) {

        case DF_BYTE:
@@ -29306,9 +29322,6 @@ static void gen_msa_3r(CPUMIPSState *env, DisasContext *ctx) 
    case OPC_SUBSUS_U_df:

        gen_helper_msa_subsus_u_df(cpu_env, tdf, twd, tws, twt);

        break;

    case OPC_MSUBV_df:

        gen_helper_msa_msubv_df(cpu_env, tdf, twd, tws, twt);

        break;

    case OPC_SUBSUU_S_df:

        gen_helper_msa_subsuu_s_df(cpu_env, tdf, twd, tws, twt);

        break;