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提交 32b6c812 编写于 作者: B blueswir1
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Avoid writes to T1 except for loads/stores, convert some T0 uses to cpu_tmp0 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4130 c046a42c-6fe2-441c-8c8c-71466251a162
上级 31741a27
隐藏空白更改
内联 并排
Showing with 41 addition and 41 deletion
target-sparc/translate.c
浏览文件 @ 32b6c812
......@@ -2885,12 +2885,12 @@ static void disas_sparc_insn(DisasContext * dc)
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_TN(rs2, cpu_T[1]);
if (insn & (1 << 12)) {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x3f);
tcg_gen_shl_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x3f);
tcg_gen_shl_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
} else {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_T[0], cpu_T[0], 0xffffffffULL);
tcg_gen_shl_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_shl_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
}
}
gen_movl_TN_reg(rd, cpu_T[0]);
......@@ -2909,12 +2909,12 @@ static void disas_sparc_insn(DisasContext * dc)
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_TN(rs2, cpu_T[1]);
if (insn & (1 << 12)) {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x3f);
tcg_gen_shr_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x3f);
tcg_gen_shr_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
} else {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_T[0], cpu_T[0], 0xffffffffULL);
tcg_gen_shr_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_shr_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
}
}
gen_movl_TN_reg(rd, cpu_T[0]);
......@@ -2934,12 +2934,12 @@ static void disas_sparc_insn(DisasContext * dc)
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_TN(rs2, cpu_T[1]);
if (insn & (1 << 12)) {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x3f);
tcg_gen_sar_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x3f);
tcg_gen_sar_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
} else {
tcg_gen_andi_i64(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_andi_i64(cpu_T[0], cpu_T[0], 0xffffffffULL);
tcg_gen_sar_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_sar_i64(cpu_T[0], cpu_T[0], cpu_tmp0);
}
}
gen_movl_TN_reg(rd, cpu_T[0]);
......@@ -2984,20 +2984,20 @@ static void disas_sparc_insn(DisasContext * dc)
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
break;
case 0x5:
tcg_gen_xori_tl(cpu_T[1], cpu_T[1], -1);
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_xori_tl(cpu_tmp0, cpu_T[1], -1);
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
if (xop & 0x10)
gen_op_logic_cc(cpu_T[0]);
break;
case 0x6:
tcg_gen_xori_tl(cpu_T[1], cpu_T[1], -1);
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_xori_tl(cpu_tmp0, cpu_T[1], -1);
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
if (xop & 0x10)
gen_op_logic_cc(cpu_T[0]);
break;
case 0x7:
tcg_gen_xori_tl(cpu_T[1], cpu_T[1], -1);
tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_xori_tl(cpu_tmp0, cpu_T[1], -1);
tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
if (xop & 0x10)
gen_op_logic_cc(cpu_T[0]);
break;
......@@ -3006,8 +3006,8 @@ static void disas_sparc_insn(DisasContext * dc)
gen_op_addx_cc(cpu_T[0], cpu_T[0], cpu_T[1]);
else {
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_add_tl(cpu_T[1], cpu_T[1], cpu_tmp0);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_add_tl(cpu_tmp0, cpu_T[1], cpu_tmp0);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
}
break;
#ifdef TARGET_SPARC64
......@@ -3030,8 +3030,8 @@ static void disas_sparc_insn(DisasContext * dc)
gen_op_subx_cc(cpu_T[0], cpu_T[0], cpu_T[1]);
else {
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_add_tl(cpu_T[1], cpu_T[1], cpu_tmp0);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_add_tl(cpu_tmp0, cpu_T[1], cpu_tmp0);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
}
break;
#ifdef TARGET_SPARC64
......@@ -3080,18 +3080,18 @@ static void disas_sparc_insn(DisasContext * dc)
break;
#ifndef TARGET_SPARC64
case 0x25: /* sll */
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_shl_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_tl(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_shl_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
gen_movl_TN_reg(rd, cpu_T[0]);
break;
case 0x26: /* srl */
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_tl(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
gen_movl_TN_reg(rd, cpu_T[0]);
break;
case 0x27: /* sra */
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 0x1f);
tcg_gen_sar_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_andi_tl(cpu_tmp0, cpu_T[1], 0x1f);
tcg_gen_sar_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
gen_movl_TN_reg(rd, cpu_T[0]);
break;
#endif
......@@ -3451,12 +3451,12 @@ static void disas_sparc_insn(DisasContext * dc)
tcg_const_tl(0), l1);
if (IS_IMM) { /* immediate */
rs2 = GET_FIELD_SPs(insn, 0, 10);
tcg_gen_movi_tl(cpu_T[1], (int)rs2);
tcg_gen_movi_tl(cpu_T[0], (int)rs2);
} else {
rs2 = GET_FIELD_SP(insn, 0, 4);
gen_movl_reg_TN(rs2, cpu_T[1]);
gen_movl_reg_TN(rs2, cpu_T[0]);
}
gen_movl_TN_reg(rd, cpu_T[1]);
gen_movl_TN_reg(rd, cpu_T[0]);
gen_set_label(l1);
tcg_gen_discard_tl(r_cond);
break;
......@@ -3494,12 +3494,12 @@ static void disas_sparc_insn(DisasContext * dc)
tcg_const_tl(0), l1);
if (IS_IMM) { /* immediate */
rs2 = GET_FIELD_SPs(insn, 0, 9);
tcg_gen_movi_tl(cpu_T[1], (int)rs2);
tcg_gen_movi_tl(cpu_T[0], (int)rs2);
} else {
rs2 = GET_FIELD_SP(insn, 0, 4);
gen_movl_reg_TN(rs2, cpu_T[1]);
gen_movl_reg_TN(rs2, cpu_T[0]);
}
gen_movl_TN_reg(rd, cpu_T[1]);
gen_movl_TN_reg(rd, cpu_T[0]);
gen_set_label(l1);
break;
}
......@@ -3965,8 +3965,8 @@ static void disas_sparc_insn(DisasContext * dc)
case 0x38: /* jmpl */
{
if (rd != 0) {
tcg_gen_movi_tl(cpu_T[1], dc->pc);
gen_movl_TN_reg(rd, cpu_T[1]);
tcg_gen_movi_tl(cpu_tmp0, dc->pc);
gen_movl_TN_reg(rd, cpu_tmp0);
}
gen_mov_pc_npc(dc, cpu_T[2]);
tcg_gen_helper_0_2(helper_check_align, cpu_T[0], tcg_const_i32(3));
......@@ -4081,9 +4081,9 @@ static void disas_sparc_insn(DisasContext * dc)
tcg_gen_helper_0_2(helper_check_align, cpu_T[0], tcg_const_i32(7));
ABI32_MASK(cpu_T[0]);
tcg_gen_qemu_ld64(cpu_tmp64, cpu_T[0], dc->mem_idx);
tcg_gen_trunc_i64_tl(cpu_T[0], cpu_tmp64);
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffffffffULL);
gen_movl_TN_reg(rd + 1, cpu_T[0]);
tcg_gen_trunc_i64_tl(cpu_tmp0, cpu_tmp64);
tcg_gen_andi_tl(cpu_tmp0, cpu_tmp0, 0xffffffffULL);
gen_movl_TN_reg(rd + 1, cpu_tmp0);
tcg_gen_shri_i64(cpu_tmp64, cpu_tmp64, 32);
tcg_gen_trunc_i64_tl(cpu_T[1], cpu_tmp64);
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], 0xffffffffULL);
......@@ -4151,8 +4151,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rd & 1)
goto illegal_insn;
tcg_gen_helper_0_2(helper_check_align, cpu_T[0], tcg_const_i32(7));
gen_ldda_asi(cpu_T[0], cpu_T[1], cpu_T[0], insn);
gen_movl_TN_reg(rd + 1, cpu_T[0]);
gen_ldda_asi(cpu_tmp0, cpu_T[1], cpu_T[0], insn);
gen_movl_TN_reg(rd + 1, cpu_tmp0);
break;
case 0x19: /* load signed byte alternate */
#ifndef TARGET_SPARC64
......
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