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author | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-09-25 14:46:00 +0200 |
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committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-10-01 16:58:44 +0200 |
commit | 4c5daf386fca86e64ddce8510a336551c6427cae (patch) | |
tree | 4f7ee701e1d896c90af0024539eaa80b5734b14a /target/mips | |
parent | 81c4b05995bcbeeaf7f7f4183b118a098f268d22 (diff) | |
download | qemu-4c5daf386fca86e64ddce8510a336551c6427cae.zip qemu-4c5daf386fca86e64ddce8510a336551c6427cae.tar.gz qemu-4c5daf386fca86e64ddce8510a336551c6427cae.tar.bz2 |
target/mips: msa: Split helpers for PCNT.<B|H|W|D>
Achieves clearer code and slightly better performance.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <1569415572-19635-9-git-send-email-aleksandar.markovic@rt-rk.com>
Diffstat (limited to 'target/mips')
-rw-r--r-- | target/mips/helper.h | 6 | ||||
-rw-r--r-- | target/mips/msa_helper.c | 143 | ||||
-rw-r--r-- | target/mips/translate.c | 19 |
3 files changed, 95 insertions, 73 deletions
diff --git a/target/mips/helper.h b/target/mips/helper.h index d709083..18e4c7a 100644 --- a/target/mips/helper.h +++ b/target/mips/helper.h @@ -788,6 +788,11 @@ DEF_HELPER_3(msa_nlzc_h, void, env, i32, i32) DEF_HELPER_3(msa_nlzc_w, void, env, i32, i32) DEF_HELPER_3(msa_nlzc_d, void, env, i32, i32) +DEF_HELPER_3(msa_pcnt_b, void, env, i32, i32) +DEF_HELPER_3(msa_pcnt_h, void, env, i32, i32) +DEF_HELPER_3(msa_pcnt_w, void, env, i32, i32) +DEF_HELPER_3(msa_pcnt_d, void, env, i32, i32) + DEF_HELPER_4(msa_andi_b, void, env, i32, i32, i32) DEF_HELPER_4(msa_ori_b, void, env, i32, i32, i32) @@ -946,7 +951,6 @@ DEF_HELPER_4(msa_bmnz_v, void, env, i32, i32, i32) DEF_HELPER_4(msa_bmz_v, void, env, i32, i32, i32) DEF_HELPER_4(msa_bsel_v, void, env, i32, i32, i32) DEF_HELPER_4(msa_fill_df, void, env, i32, i32, i32) -DEF_HELPER_4(msa_pcnt_df, void, env, i32, i32, i32) DEF_HELPER_4(msa_copy_s_b, void, env, i32, i32, i32) DEF_HELPER_4(msa_copy_s_h, void, env, i32, i32, i32) diff --git a/target/mips/msa_helper.c b/target/mips/msa_helper.c index 8c27c1b..fe27efc 100644 --- a/target/mips/msa_helper.c +++ b/target/mips/msa_helper.c @@ -207,6 +207,80 @@ void helper_msa_nlzc_d(CPUMIPSState *env, uint32_t wd, uint32_t ws) pwd->d[1] = msa_nlzc_df(DF_DOUBLE, pws->d[1]); } +static inline int64_t msa_pcnt_df(uint32_t df, int64_t arg) +{ + uint64_t x; + + x = UNSIGNED(arg, df); + + x = (x & 0x5555555555555555ULL) + ((x >> 1) & 0x5555555555555555ULL); + x = (x & 0x3333333333333333ULL) + ((x >> 2) & 0x3333333333333333ULL); + x = (x & 0x0F0F0F0F0F0F0F0FULL) + ((x >> 4) & 0x0F0F0F0F0F0F0F0FULL); + x = (x & 0x00FF00FF00FF00FFULL) + ((x >> 8) & 0x00FF00FF00FF00FFULL); + x = (x & 0x0000FFFF0000FFFFULL) + ((x >> 16) & 0x0000FFFF0000FFFFULL); + x = (x & 0x00000000FFFFFFFFULL) + ((x >> 32)); + + return x; +} + +void helper_msa_pcnt_b(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->b[0] = msa_pcnt_df(DF_BYTE, pws->b[0]); + pwd->b[1] = msa_pcnt_df(DF_BYTE, pws->b[1]); + pwd->b[2] = msa_pcnt_df(DF_BYTE, pws->b[2]); + pwd->b[3] = msa_pcnt_df(DF_BYTE, pws->b[3]); + pwd->b[4] = msa_pcnt_df(DF_BYTE, pws->b[4]); + pwd->b[5] = msa_pcnt_df(DF_BYTE, pws->b[5]); + pwd->b[6] = msa_pcnt_df(DF_BYTE, pws->b[6]); + pwd->b[7] = msa_pcnt_df(DF_BYTE, pws->b[7]); + pwd->b[8] = msa_pcnt_df(DF_BYTE, pws->b[8]); + pwd->b[9] = msa_pcnt_df(DF_BYTE, pws->b[9]); + pwd->b[10] = msa_pcnt_df(DF_BYTE, pws->b[10]); + pwd->b[11] = msa_pcnt_df(DF_BYTE, pws->b[11]); + pwd->b[12] = msa_pcnt_df(DF_BYTE, pws->b[12]); + pwd->b[13] = msa_pcnt_df(DF_BYTE, pws->b[13]); + pwd->b[14] = msa_pcnt_df(DF_BYTE, pws->b[14]); + pwd->b[15] = msa_pcnt_df(DF_BYTE, pws->b[15]); +} + +void helper_msa_pcnt_h(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->h[0] = msa_pcnt_df(DF_HALF, pws->h[0]); + pwd->h[1] = msa_pcnt_df(DF_HALF, pws->h[1]); + pwd->h[2] = msa_pcnt_df(DF_HALF, pws->h[2]); + pwd->h[3] = msa_pcnt_df(DF_HALF, pws->h[3]); + pwd->h[4] = msa_pcnt_df(DF_HALF, pws->h[4]); + pwd->h[5] = msa_pcnt_df(DF_HALF, pws->h[5]); + pwd->h[6] = msa_pcnt_df(DF_HALF, pws->h[6]); + pwd->h[7] = msa_pcnt_df(DF_HALF, pws->h[7]); +} + +void helper_msa_pcnt_w(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->w[0] = msa_pcnt_df(DF_WORD, pws->w[0]); + pwd->w[1] = msa_pcnt_df(DF_WORD, pws->w[1]); + pwd->w[2] = msa_pcnt_df(DF_WORD, pws->w[2]); + pwd->w[3] = msa_pcnt_df(DF_WORD, pws->w[3]); +} + +void helper_msa_pcnt_d(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->d[0] = msa_pcnt_df(DF_DOUBLE, pws->d[0]); + pwd->d[1] = msa_pcnt_df(DF_DOUBLE, pws->d[1]); +} + /* * Bit Move @@ -2648,22 +2722,6 @@ void helper_msa_move_v(CPUMIPSState *env, uint32_t wd, uint32_t ws) msa_move_v(pwd, pws); } -static inline int64_t msa_pcnt_df(uint32_t df, int64_t arg) -{ - uint64_t x; - - x = UNSIGNED(arg, df); - - x = (x & 0x5555555555555555ULL) + ((x >> 1) & 0x5555555555555555ULL); - x = (x & 0x3333333333333333ULL) + ((x >> 2) & 0x3333333333333333ULL); - x = (x & 0x0F0F0F0F0F0F0F0FULL) + ((x >> 4) & 0x0F0F0F0F0F0F0F0FULL); - x = (x & 0x00FF00FF00FF00FFULL) + ((x >> 8) & 0x00FF00FF00FF00FFULL); - x = (x & 0x0000FFFF0000FFFFULL) + ((x >> 16) & 0x0000FFFF0000FFFFULL); - x = (x & 0x00000000FFFFFFFFULL) + ((x >> 32)); - - return x; -} - void helper_msa_fill_df(CPUMIPSState *env, uint32_t df, uint32_t wd, uint32_t rs) { @@ -2696,59 +2754,6 @@ void helper_msa_fill_df(CPUMIPSState *env, uint32_t df, uint32_t wd, } } -#define MSA_UNOP_DF(func) \ -void helper_msa_ ## func ## _df(CPUMIPSState *env, uint32_t df, \ - uint32_t wd, uint32_t ws) \ -{ \ - wr_t *pwd = &(env->active_fpu.fpr[wd].wr); \ - wr_t *pws = &(env->active_fpu.fpr[ws].wr); \ - \ - switch (df) { \ - case DF_BYTE: \ - pwd->b[0] = msa_ ## func ## _df(df, pws->b[0]); \ - pwd->b[1] = msa_ ## func ## _df(df, pws->b[1]); \ - pwd->b[2] = msa_ ## func ## _df(df, pws->b[2]); \ - pwd->b[3] = msa_ ## func ## _df(df, pws->b[3]); \ - pwd->b[4] = msa_ ## func ## _df(df, pws->b[4]); \ - pwd->b[5] = msa_ ## func ## _df(df, pws->b[5]); \ - pwd->b[6] = msa_ ## func ## _df(df, pws->b[6]); \ - pwd->b[7] = msa_ ## func ## _df(df, pws->b[7]); \ - pwd->b[8] = msa_ ## func ## _df(df, pws->b[8]); \ - pwd->b[9] = msa_ ## func ## _df(df, pws->b[9]); \ - pwd->b[10] = msa_ ## func ## _df(df, pws->b[10]); \ - pwd->b[11] = msa_ ## func ## _df(df, pws->b[11]); \ - pwd->b[12] = msa_ ## func ## _df(df, pws->b[12]); \ - pwd->b[13] = msa_ ## func ## _df(df, pws->b[13]); \ - pwd->b[14] = msa_ ## func ## _df(df, pws->b[14]); \ - pwd->b[15] = msa_ ## func ## _df(df, pws->b[15]); \ - break; \ - case DF_HALF: \ - pwd->h[0] = msa_ ## func ## _df(df, pws->h[0]); \ - pwd->h[1] = msa_ ## func ## _df(df, pws->h[1]); \ - pwd->h[2] = msa_ ## func ## _df(df, pws->h[2]); \ - pwd->h[3] = msa_ ## func ## _df(df, pws->h[3]); \ - pwd->h[4] = msa_ ## func ## _df(df, pws->h[4]); \ - pwd->h[5] = msa_ ## func ## _df(df, pws->h[5]); \ - pwd->h[6] = msa_ ## func ## _df(df, pws->h[6]); \ - pwd->h[7] = msa_ ## func ## _df(df, pws->h[7]); \ - break; \ - case DF_WORD: \ - pwd->w[0] = msa_ ## func ## _df(df, pws->w[0]); \ - pwd->w[1] = msa_ ## func ## _df(df, pws->w[1]); \ - pwd->w[2] = msa_ ## func ## _df(df, pws->w[2]); \ - pwd->w[3] = msa_ ## func ## _df(df, pws->w[3]); \ - break; \ - case DF_DOUBLE: \ - pwd->d[0] = msa_ ## func ## _df(df, pws->d[0]); \ - pwd->d[1] = msa_ ## func ## _df(df, pws->d[1]); \ - break; \ - default: \ - assert(0); \ - } \ -} - -MSA_UNOP_DF(pcnt) -#undef MSA_UNOP_DF #define FLOAT_ONE32 make_float32(0x3f8 << 20) #define FLOAT_ONE64 make_float64(0x3ffULL << 52) diff --git a/target/mips/translate.c b/target/mips/translate.c index 6de4609..0d06ba9 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -28958,9 +28958,6 @@ static void gen_msa_2r(CPUMIPSState *env, DisasContext *ctx) #endif gen_helper_msa_fill_df(cpu_env, tdf, twd, tws); /* trs */ break; - case OPC_PCNT_df: - gen_helper_msa_pcnt_df(cpu_env, tdf, twd, tws); - break; case OPC_NLOC_df: switch (df) { case DF_BYTE: @@ -28993,6 +28990,22 @@ static void gen_msa_2r(CPUMIPSState *env, DisasContext *ctx) break; } break; + case OPC_PCNT_df: + switch (df) { + case DF_BYTE: + gen_helper_msa_pcnt_b(cpu_env, twd, tws); + break; + case DF_HALF: + gen_helper_msa_pcnt_h(cpu_env, twd, tws); + break; + case DF_WORD: + gen_helper_msa_pcnt_w(cpu_env, twd, tws); + break; + case DF_DOUBLE: + gen_helper_msa_pcnt_d(cpu_env, twd, tws); + break; + } + break; default: MIPS_INVAL("MSA instruction"); generate_exception_end(ctx, EXCP_RI); |