diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 85 |
1 files changed, 37 insertions, 48 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index c6b5862e16..b92a84473c 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -2653,60 +2653,48 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc, TCGv t0, t1; unsigned int acc; - switch (opc) { - case OPC_DIV: - case OPC_DIVU: -#if defined(TARGET_MIPS64) - case OPC_DDIV: - case OPC_DDIVU: -#endif - t0 = tcg_temp_local_new(); - t1 = tcg_temp_local_new(); - break; - default: - t0 = tcg_temp_new(); - t1 = tcg_temp_new(); - break; - } + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); + switch (opc) { case OPC_DIV: { - int l1 = gen_new_label(); - int l2 = gen_new_label(); - + TCGv t2 = tcg_temp_new(); + TCGv t3 = tcg_temp_new(); tcg_gen_ext32s_tl(t0, t0); tcg_gen_ext32s_tl(t1, t1); - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); - tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2); - - tcg_gen_mov_tl(cpu_LO[0], t0); - tcg_gen_movi_tl(cpu_HI[0], 0); - tcg_gen_br(l1); - gen_set_label(l2); + tcg_gen_setcondi_tl(TCG_COND_EQ, t2, t0, INT_MIN); + tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, -1); + tcg_gen_and_tl(t2, t2, t3); + tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, 0); + tcg_gen_or_tl(t2, t2, t3); + tcg_gen_movi_tl(t3, 0); + tcg_gen_movcond_tl(TCG_COND_NE, t1, t2, t3, t2, t1); tcg_gen_div_tl(cpu_LO[0], t0, t1); tcg_gen_rem_tl(cpu_HI[0], t0, t1); tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]); tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]); - gen_set_label(l1); + tcg_temp_free(t3); + tcg_temp_free(t2); } opn = "div"; break; case OPC_DIVU: { - int l1 = gen_new_label(); - + TCGv t2 = tcg_const_tl(0); + TCGv t3 = tcg_const_tl(1); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); + tcg_gen_movcond_tl(TCG_COND_EQ, t1, t1, t2, t3, t1); tcg_gen_divu_tl(cpu_LO[0], t0, t1); tcg_gen_remu_tl(cpu_HI[0], t0, t1); tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]); tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]); - gen_set_label(l1); + tcg_temp_free(t3); + tcg_temp_free(t2); } opn = "divu"; break; @@ -2759,30 +2747,31 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc, #if defined(TARGET_MIPS64) case OPC_DDIV: { - int l1 = gen_new_label(); - int l2 = gen_new_label(); - - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); - tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); - tcg_gen_mov_tl(cpu_LO[0], t0); - tcg_gen_movi_tl(cpu_HI[0], 0); - tcg_gen_br(l1); - gen_set_label(l2); - tcg_gen_div_i64(cpu_LO[0], t0, t1); - tcg_gen_rem_i64(cpu_HI[0], t0, t1); - gen_set_label(l1); + TCGv t2 = tcg_temp_new(); + TCGv t3 = tcg_temp_new(); + tcg_gen_setcondi_tl(TCG_COND_EQ, t2, t0, -1LL << 63); + tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, -1LL); + tcg_gen_and_tl(t2, t2, t3); + tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, 0); + tcg_gen_or_tl(t2, t2, t3); + tcg_gen_movi_tl(t3, 0); + tcg_gen_movcond_tl(TCG_COND_NE, t1, t2, t3, t2, t1); + tcg_gen_div_tl(cpu_LO[0], t0, t1); + tcg_gen_rem_tl(cpu_HI[0], t0, t1); + tcg_temp_free(t3); + tcg_temp_free(t2); } opn = "ddiv"; break; case OPC_DDIVU: { - int l1 = gen_new_label(); - - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); + TCGv t2 = tcg_const_tl(0); + TCGv t3 = tcg_const_tl(1); + tcg_gen_movcond_tl(TCG_COND_EQ, t1, t1, t2, t3, t1); tcg_gen_divu_i64(cpu_LO[0], t0, t1); tcg_gen_remu_i64(cpu_HI[0], t0, t1); - gen_set_label(l1); + tcg_temp_free(t3); + tcg_temp_free(t2); } opn = "ddivu"; break; |