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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>
This commit is contained in:
Richard Henderson 2015-09-02 15:50:14 -07:00 committed by Leon Alrae
parent 16a1b6e97c
commit 71f303cd24
1 changed files with 22 additions and 26 deletions
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48
target-mips/translate.c
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@ -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_trunc_i64_tl(ret, arg);
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_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;