c1_LinearScan_ppc.hpp revision 10049:73443d24e529 
1/*
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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8 * published by the Free Software Foundation.
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
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25
26#ifndef CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
27#define CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
28
29inline bool LinearScan::is_processed_reg_num(int reg_num) {
30  assert(FrameMap::R0_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 1, "wrong assumption below");
31  assert(FrameMap::R1_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 2, "wrong assumption below");
32  assert(FrameMap::R13_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 3, "wrong assumption below");
33  assert(FrameMap::R16_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 4, "wrong assumption below");
34  assert(FrameMap::R29_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 5, "wrong assumption below");
35  return reg_num <= FrameMap::last_cpu_reg() || reg_num >= pd_nof_cpu_regs_frame_map;
36}
37
38inline int LinearScan::num_physical_regs(BasicType type) {
39  return 1;
40}
41
42
43inline bool LinearScan::requires_adjacent_regs(BasicType type) {
44  return false;
45}
46
47inline bool LinearScan::is_caller_save(int assigned_reg) {
48  return true; // assigned_reg < pd_first_callee_saved_reg;
49}
50
51
52inline void LinearScan::pd_add_temps(LIR_Op* op) {
53  // No special case behaviours yet
54}
55
56
57inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
58  if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
59    assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
60    _first_reg = pd_first_callee_saved_reg;
61    _last_reg = pd_last_callee_saved_reg;
62    ShouldNotReachHere(); // Currently no callee saved regs.
63    return true;
64  } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT ||
65             cur->type() == T_ADDRESS || cur->type() == T_METADATA) {
66    _first_reg = pd_first_cpu_reg;
67    _last_reg = pd_last_cpu_reg;
68    return true;
69  }
70  return false;
71}
72
73#endif // CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
74