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| author | Richard Henderson <rth@twiddle.net> | 2015-09-02 15:50:14 -0700 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2015-09-18 09:20:48 +0100 |
| commit | 71f303cd246ae22ce6fdacb3801b5abbca25c409 (patch) | |
| tree | 63c1cd17b6b7736354e85ccd51c72ad6fdf6eb58 /target-mips | |
| parent | 16a1b6e97c2a2919fd296db4bea2f9da2ad3cc4d (diff) | |
| download | qemu-71f303cd246ae22ce6fdacb3801b5abbca25c409.zip | |
target-mips: Use tcg_gen_extrh_i64_i32
We can tidy gen_load_fpr32h, as well as introduce a helper
to cleanup the MACC instructions.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 93cb4f2731..2f1e724139 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -1647,10 +1647,7 @@ static void gen_store_fpr32(DisasContext *ctx, TCGv_i32 t, int reg) static void gen_load_fpr32h(DisasContext *ctx, TCGv_i32 t, int reg) { if (ctx->hflags & MIPS_HFLAG_F64) { - TCGv_i64 t64 = tcg_temp_new_i64(); - tcg_gen_shri_i64(t64, fpu_f64[reg], 32); - tcg_gen_extrl_i64_i32(t, t64); - tcg_temp_free_i64(t64); + tcg_gen_extrh_i64_i32(t, fpu_f64[reg]); } else { gen_load_fpr32(ctx, t, reg | 1); } @@ -1725,12 +1722,23 @@ static target_long addr_add(DisasContext *ctx, target_long base, return sum; } +/* Sign-extract the low 32-bits to a target_long. */ static inline void gen_move_low32(TCGv ret, TCGv_i64 arg) { #if defined(TARGET_MIPS64) - tcg_gen_ext32s_tl(ret, arg); + tcg_gen_ext32s_i64(ret, arg); +#else + tcg_gen_extrl_i64_i32(ret, arg); +#endif +} + +/* Sign-extract the high 32-bits to a target_long. */ +static inline void gen_move_high32(TCGv ret, TCGv_i64 arg) +{ +#if defined(TARGET_MIPS64) + tcg_gen_sari_i64(ret, arg, 32); #else - tcg_gen_trunc_i64_tl(ret, arg); + tcg_gen_extrh_i64_i32(ret, arg); #endif } @@ -3648,12 +3656,9 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc, tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); tcg_gen_add_i64(t2, t2, t3); tcg_temp_free_i64(t3); - tcg_gen_trunc_i64_tl(t0, t2); - tcg_gen_shri_i64(t2, t2, 32); - tcg_gen_trunc_i64_tl(t1, t2); + gen_move_low32(cpu_LO[acc], t2); + gen_move_high32(cpu_HI[acc], t2); tcg_temp_free_i64(t2); - tcg_gen_ext32s_tl(cpu_LO[acc], t0); - tcg_gen_ext32s_tl(cpu_HI[acc], t1); } opn = "madd"; break; @@ -3670,12 +3675,9 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc, tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); tcg_gen_add_i64(t2, t2, t3); tcg_temp_free_i64(t3); - tcg_gen_trunc_i64_tl(t0, t2); - tcg_gen_shri_i64(t2, t2, 32); - tcg_gen_trunc_i64_tl(t1, t2); + gen_move_low32(cpu_LO[acc], t2); + gen_move_high32(cpu_HI[acc], t2); tcg_temp_free_i64(t2); - tcg_gen_ext32s_tl(cpu_LO[acc], t0); - tcg_gen_ext32s_tl(cpu_HI[acc], t1); } opn = "maddu"; break; @@ -3690,12 +3692,9 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc, tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); - tcg_gen_trunc_i64_tl(t0, t2); - tcg_gen_shri_i64(t2, t2, 32); - tcg_gen_trunc_i64_tl(t1, t2); + gen_move_low32(cpu_LO[acc], t2); + gen_move_high32(cpu_HI[acc], t2); tcg_temp_free_i64(t2); - tcg_gen_ext32s_tl(cpu_LO[acc], t0); - tcg_gen_ext32s_tl(cpu_HI[acc], t1); } opn = "msub"; break; @@ -3712,12 +3711,9 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc, tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]); tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); - tcg_gen_trunc_i64_tl(t0, t2); - tcg_gen_shri_i64(t2, t2, 32); - tcg_gen_trunc_i64_tl(t1, t2); + gen_move_low32(cpu_LO[acc], t2); + gen_move_high32(cpu_HI[acc], t2); tcg_temp_free_i64(t2); - tcg_gen_ext32s_tl(cpu_LO[acc], t0); - tcg_gen_ext32s_tl(cpu_HI[acc], t1); } opn = "msubu"; break; |