Mercurial > hg > truffle
annotate src/cpu/ppc/vm/macroAssembler_ppc.hpp @ 19078:5447a27a6fd7
Make StackUsePosList and StackInterval final.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Fri, 30 Jan 2015 15:39:59 +0100 |
parents | 71a71b0bc844 |
children | c5e86c5cd22e |
rev | line source |
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1 /* |
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2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
17804 | 3 * Copyright 2012, 2014 SAP AG. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #ifndef CPU_PPC_VM_MACROASSEMBLER_PPC_HPP |
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27 #define CPU_PPC_VM_MACROASSEMBLER_PPC_HPP |
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28 |
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29 #include "asm/assembler.hpp" |
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30 |
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31 // MacroAssembler extends Assembler by a few frequently used macros. |
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32 |
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33 class ciTypeArray; |
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34 |
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35 class MacroAssembler: public Assembler { |
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36 public: |
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37 MacroAssembler(CodeBuffer* code) : Assembler(code) {} |
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38 |
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39 // |
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40 // Optimized instruction emitters |
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41 // |
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42 |
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43 inline static int largeoffset_si16_si16_hi(int si31) { return (si31 + (1<<15)) >> 16; } |
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44 inline static int largeoffset_si16_si16_lo(int si31) { return si31 - (((si31 + (1<<15)) >> 16) << 16); } |
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45 |
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46 // load d = *[a+si31] |
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47 // Emits several instructions if the offset is not encodable in one instruction. |
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48 void ld_largeoffset_unchecked(Register d, int si31, Register a, int emit_filler_nop); |
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49 void ld_largeoffset (Register d, int si31, Register a, int emit_filler_nop); |
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50 inline static bool is_ld_largeoffset(address a); |
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51 inline static int get_ld_largeoffset_offset(address a); |
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52 |
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53 inline void round_to(Register r, int modulus); |
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54 |
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55 // Load/store with type given by parameter. |
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56 void load_sized_value( Register dst, RegisterOrConstant offs, Register base, size_t size_in_bytes, bool is_signed); |
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57 void store_sized_value(Register dst, RegisterOrConstant offs, Register base, size_t size_in_bytes); |
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58 |
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59 // Move register if destination register and target register are different |
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60 inline void mr_if_needed(Register rd, Register rs); |
14445 | 61 inline void fmr_if_needed(FloatRegister rd, FloatRegister rs); |
62 // This is dedicated for emitting scheduled mach nodes. For better | |
63 // readability of the ad file I put it here. | |
64 // Endgroups are not needed if | |
65 // - the scheduler is off | |
66 // - the scheduler found that there is a natural group end, in that | |
67 // case it reduced the size of the instruction used in the test | |
68 // yielding 'needed'. | |
69 inline void endgroup_if_needed(bool needed); | |
70 | |
71 // Memory barriers. | |
72 inline void membar(int bits); | |
73 inline void release(); | |
74 inline void acquire(); | |
75 inline void fence(); | |
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76 |
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77 // nop padding |
14445 | 78 void align(int modulus, int max = 252, int rem = 0); |
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79 |
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80 // |
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81 // Constants, loading constants, TOC support |
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82 // |
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83 |
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84 // Address of the global TOC. |
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85 inline static address global_toc(); |
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86 // Offset of given address to the global TOC. |
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87 inline static int offset_to_global_toc(const address addr); |
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88 |
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89 // Address of TOC of the current method. |
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90 inline address method_toc(); |
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91 // Offset of given address to TOC of the current method. |
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92 inline int offset_to_method_toc(const address addr); |
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93 |
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94 // Global TOC. |
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95 void calculate_address_from_global_toc(Register dst, address addr, |
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96 bool hi16 = true, bool lo16 = true, |
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97 bool add_relocation = true, bool emit_dummy_addr = false); |
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98 inline void calculate_address_from_global_toc_hi16only(Register dst, address addr) { |
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99 calculate_address_from_global_toc(dst, addr, true, false); |
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100 }; |
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101 inline void calculate_address_from_global_toc_lo16only(Register dst, address addr) { |
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102 calculate_address_from_global_toc(dst, addr, false, true); |
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103 }; |
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104 |
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105 inline static bool is_calculate_address_from_global_toc_at(address a, address bound); |
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106 static int patch_calculate_address_from_global_toc_at(address a, address addr, address bound); |
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107 static address get_address_of_calculate_address_from_global_toc_at(address a, address addr); |
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108 |
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109 #ifdef _LP64 |
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110 // Patch narrow oop constant. |
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111 inline static bool is_set_narrow_oop(address a, address bound); |
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112 static int patch_set_narrow_oop(address a, address bound, narrowOop data); |
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113 static narrowOop get_narrow_oop(address a, address bound); |
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114 #endif |
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115 |
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116 inline static bool is_load_const_at(address a); |
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117 |
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118 // Emits an oop const to the constant pool, loads the constant, and |
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119 // sets a relocation info with address current_pc. |
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120 void load_const_from_method_toc(Register dst, AddressLiteral& a, Register toc); |
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121 void load_toc_from_toc(Register dst, AddressLiteral& a, Register toc) { |
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122 assert(dst == R2_TOC, "base register must be TOC"); |
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123 load_const_from_method_toc(dst, a, toc); |
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124 } |
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125 |
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126 static bool is_load_const_from_method_toc_at(address a); |
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127 static int get_offset_of_load_const_from_method_toc_at(address a); |
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128 |
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129 // Get the 64 bit constant from a `load_const' sequence. |
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130 static long get_const(address load_const); |
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131 |
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132 // Patch the 64 bit constant of a `load_const' sequence. This is a |
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133 // low level procedure. It neither flushes the instruction cache nor |
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134 // is it atomic. |
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135 static void patch_const(address load_const, long x); |
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136 |
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137 // Metadata in code that we have to keep track of. |
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138 AddressLiteral allocate_metadata_address(Metadata* obj); // allocate_index |
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139 AddressLiteral constant_metadata_address(Metadata* obj); // find_index |
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140 // Oops used directly in compiled code are stored in the constant pool, |
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141 // and loaded from there. |
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142 // Allocate new entry for oop in constant pool. Generate relocation. |
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143 AddressLiteral allocate_oop_address(jobject obj); |
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144 // Find oop obj in constant pool. Return relocation with it's index. |
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145 AddressLiteral constant_oop_address(jobject obj); |
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146 |
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147 // Find oop in constant pool and emit instructions to load it. |
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148 // Uses constant_oop_address. |
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149 inline void set_oop_constant(jobject obj, Register d); |
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150 // Same as load_address. |
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151 inline void set_oop (AddressLiteral obj_addr, Register d); |
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152 |
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153 // Read runtime constant: Issue load if constant not yet established, |
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154 // else use real constant. |
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155 virtual RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr, |
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156 Register tmp, |
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157 int offset); |
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158 |
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159 // |
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160 // branch, jump |
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161 // |
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162 |
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163 inline void pd_patch_instruction(address branch, address target); |
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164 NOT_PRODUCT(static void pd_print_patched_instruction(address branch);) |
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165 |
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166 // Conditional far branch for destinations encodable in 24+2 bits. |
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167 // Same interface as bc, e.g. no inverse boint-field. |
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168 enum { |
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169 bc_far_optimize_not = 0, |
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170 bc_far_optimize_on_relocate = 1 |
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171 }; |
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172 // optimize: flag for telling the conditional far branch to optimize |
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173 // itself when relocated. |
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174 void bc_far(int boint, int biint, Label& dest, int optimize); |
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175 // Relocation of conditional far branches. |
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176 static bool is_bc_far_at(address instruction_addr); |
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177 static address get_dest_of_bc_far_at(address instruction_addr); |
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178 static void set_dest_of_bc_far_at(address instruction_addr, address dest); |
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179 private: |
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180 static bool inline is_bc_far_variant1_at(address instruction_addr); |
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181 static bool inline is_bc_far_variant2_at(address instruction_addr); |
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182 static bool inline is_bc_far_variant3_at(address instruction_addr); |
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183 public: |
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184 |
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185 // Convenience bc_far versions. |
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186 inline void blt_far(ConditionRegister crx, Label& L, int optimize); |
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187 inline void bgt_far(ConditionRegister crx, Label& L, int optimize); |
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188 inline void beq_far(ConditionRegister crx, Label& L, int optimize); |
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189 inline void bso_far(ConditionRegister crx, Label& L, int optimize); |
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190 inline void bge_far(ConditionRegister crx, Label& L, int optimize); |
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191 inline void ble_far(ConditionRegister crx, Label& L, int optimize); |
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192 inline void bne_far(ConditionRegister crx, Label& L, int optimize); |
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193 inline void bns_far(ConditionRegister crx, Label& L, int optimize); |
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194 |
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195 // Emit, identify and patch a NOT mt-safe patchable 64 bit absolute call/jump. |
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196 private: |
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197 enum { |
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198 bxx64_patchable_instruction_count = (2/*load_codecache_const*/ + 3/*5load_const*/ + 1/*mtctr*/ + 1/*bctrl*/), |
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199 bxx64_patchable_size = bxx64_patchable_instruction_count * BytesPerInstWord, |
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200 bxx64_patchable_ret_addr_offset = bxx64_patchable_size |
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201 }; |
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202 void bxx64_patchable(address target, relocInfo::relocType rt, bool link); |
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203 static bool is_bxx64_patchable_at( address instruction_addr, bool link); |
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204 // Does the instruction use a pc-relative encoding of the destination? |
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205 static bool is_bxx64_patchable_pcrelative_at( address instruction_addr, bool link); |
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206 static bool is_bxx64_patchable_variant1_at( address instruction_addr, bool link); |
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207 // Load destination relative to global toc. |
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208 static bool is_bxx64_patchable_variant1b_at( address instruction_addr, bool link); |
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209 static bool is_bxx64_patchable_variant2_at( address instruction_addr, bool link); |
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210 static void set_dest_of_bxx64_patchable_at( address instruction_addr, address target, bool link); |
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211 static address get_dest_of_bxx64_patchable_at(address instruction_addr, bool link); |
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212 |
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213 public: |
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214 // call |
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215 enum { |
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216 bl64_patchable_instruction_count = bxx64_patchable_instruction_count, |
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217 bl64_patchable_size = bxx64_patchable_size, |
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218 bl64_patchable_ret_addr_offset = bxx64_patchable_ret_addr_offset |
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219 }; |
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220 inline void bl64_patchable(address target, relocInfo::relocType rt) { |
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221 bxx64_patchable(target, rt, /*link=*/true); |
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222 } |
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223 inline static bool is_bl64_patchable_at(address instruction_addr) { |
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224 return is_bxx64_patchable_at(instruction_addr, /*link=*/true); |
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225 } |
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226 inline static bool is_bl64_patchable_pcrelative_at(address instruction_addr) { |
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227 return is_bxx64_patchable_pcrelative_at(instruction_addr, /*link=*/true); |
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228 } |
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229 inline static void set_dest_of_bl64_patchable_at(address instruction_addr, address target) { |
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230 set_dest_of_bxx64_patchable_at(instruction_addr, target, /*link=*/true); |
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231 } |
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232 inline static address get_dest_of_bl64_patchable_at(address instruction_addr) { |
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233 return get_dest_of_bxx64_patchable_at(instruction_addr, /*link=*/true); |
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234 } |
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235 // jump |
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236 enum { |
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237 b64_patchable_instruction_count = bxx64_patchable_instruction_count, |
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238 b64_patchable_size = bxx64_patchable_size, |
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239 }; |
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240 inline void b64_patchable(address target, relocInfo::relocType rt) { |
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241 bxx64_patchable(target, rt, /*link=*/false); |
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242 } |
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243 inline static bool is_b64_patchable_at(address instruction_addr) { |
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244 return is_bxx64_patchable_at(instruction_addr, /*link=*/false); |
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245 } |
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246 inline static bool is_b64_patchable_pcrelative_at(address instruction_addr) { |
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247 return is_bxx64_patchable_pcrelative_at(instruction_addr, /*link=*/false); |
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248 } |
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249 inline static void set_dest_of_b64_patchable_at(address instruction_addr, address target) { |
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250 set_dest_of_bxx64_patchable_at(instruction_addr, target, /*link=*/false); |
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251 } |
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252 inline static address get_dest_of_b64_patchable_at(address instruction_addr) { |
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253 return get_dest_of_bxx64_patchable_at(instruction_addr, /*link=*/false); |
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254 } |
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255 |
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256 // |
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257 // Support for frame handling |
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258 // |
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259 |
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260 // some ABI-related functions |
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261 void save_nonvolatile_gprs( Register dst_base, int offset); |
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262 void restore_nonvolatile_gprs(Register src_base, int offset); |
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263 void save_volatile_gprs( Register dst_base, int offset); |
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264 void restore_volatile_gprs(Register src_base, int offset); |
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265 void save_LR_CR( Register tmp); // tmp contains LR on return. |
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266 void restore_LR_CR(Register tmp); |
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267 |
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268 // Get current PC using bl-next-instruction trick. |
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269 address get_PC_trash_LR(Register result); |
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270 |
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271 // Resize current frame either relatively wrt to current SP or absolute. |
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272 void resize_frame(Register offset, Register tmp); |
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273 void resize_frame(int offset, Register tmp); |
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274 void resize_frame_absolute(Register addr, Register tmp1, Register tmp2); |
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275 |
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276 // Push a frame of size bytes. |
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277 void push_frame(Register bytes, Register tmp); |
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278 |
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279 // Push a frame of size `bytes'. No abi space provided. |
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280 void push_frame(unsigned int bytes, Register tmp); |
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281 |
17803 | 282 // Push a frame of size `bytes' plus abi_reg_args on top. |
283 void push_frame_reg_args(unsigned int bytes, Register tmp); | |
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284 |
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285 // Setup up a new C frame with a spill area for non-volatile GPRs and additional |
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286 // space for local variables |
17803 | 287 void push_frame_reg_args_nonvolatiles(unsigned int bytes, Register tmp); |
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288 |
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289 // pop current C frame |
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290 void pop_frame(); |
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291 |
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292 // |
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293 // Calls |
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294 // |
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295 |
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296 private: |
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297 address _last_calls_return_pc; |
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298 |
17803 | 299 #if defined(ABI_ELFv2) |
300 // Generic version of a call to C function. | |
301 // Updates and returns _last_calls_return_pc. | |
302 address branch_to(Register function_entry, bool and_link); | |
303 #else | |
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304 // Generic version of a call to C function via a function descriptor |
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305 // with variable support for C calling conventions (TOC, ENV, etc.). |
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306 // updates and returns _last_calls_return_pc. |
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307 address branch_to(Register function_descriptor, bool and_link, bool save_toc_before_call, |
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308 bool restore_toc_after_call, bool load_toc_of_callee, bool load_env_of_callee); |
17803 | 309 #endif |
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310 |
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311 public: |
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312 |
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313 // Get the pc where the last call will return to. returns _last_calls_return_pc. |
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314 inline address last_calls_return_pc(); |
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315 |
17803 | 316 #if defined(ABI_ELFv2) |
317 // Call a C function via a function descriptor and use full C | |
318 // calling conventions. Updates and returns _last_calls_return_pc. | |
319 address call_c(Register function_entry); | |
320 // For tail calls: only branch, don't link, so callee returns to caller of this function. | |
321 address call_c_and_return_to_caller(Register function_entry); | |
322 address call_c(address function_entry, relocInfo::relocType rt); | |
323 #else | |
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324 // Call a C function via a function descriptor and use full C |
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325 // calling conventions. Updates and returns _last_calls_return_pc. |
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326 address call_c(Register function_descriptor); |
14445 | 327 // For tail calls: only branch, don't link, so callee returns to caller of this function. |
328 address call_c_and_return_to_caller(Register function_descriptor); | |
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329 address call_c(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt); |
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330 address call_c_using_toc(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt, |
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331 Register toc); |
17803 | 332 #endif |
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333 |
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334 protected: |
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335 |
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336 // It is imperative that all calls into the VM are handled via the |
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337 // call_VM macros. They make sure that the stack linkage is setup |
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338 // correctly. call_VM's correspond to ENTRY/ENTRY_X entry points |
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339 // while call_VM_leaf's correspond to LEAF entry points. |
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340 // |
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341 // This is the base routine called by the different versions of |
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342 // call_VM. The interpreter may customize this version by overriding |
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343 // it for its purposes (e.g., to save/restore additional registers |
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344 // when doing a VM call). |
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345 // |
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346 // If no last_java_sp is specified (noreg) then SP will be used instead. |
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347 virtual void call_VM_base( |
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348 // where an oop-result ends up if any; use noreg otherwise |
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349 Register oop_result, |
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350 // to set up last_Java_frame in stubs; use noreg otherwise |
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351 Register last_java_sp, |
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352 // the entry point |
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353 address entry_point, |
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354 // flag which indicates if exception should be checked |
14445 | 355 bool check_exception = true |
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356 ); |
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357 |
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358 // Support for VM calls. This is the base routine called by the |
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359 // different versions of call_VM_leaf. The interpreter may customize |
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360 // this version by overriding it for its purposes (e.g., to |
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361 // save/restore additional registers when doing a VM call). |
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362 void call_VM_leaf_base(address entry_point); |
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363 |
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364 public: |
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365 // Call into the VM. |
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366 // Passes the thread pointer (in R3_ARG1) as a prepended argument. |
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367 // Makes sure oop return values are visible to the GC. |
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368 void call_VM(Register oop_result, address entry_point, bool check_exceptions = true); |
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369 void call_VM(Register oop_result, address entry_point, Register arg_1, bool check_exceptions = true); |
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370 void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); |
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371 void call_VM_leaf(address entry_point); |
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372 void call_VM_leaf(address entry_point, Register arg_1); |
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373 void call_VM_leaf(address entry_point, Register arg_1, Register arg_2); |
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374 void call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3); |
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375 |
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376 // Call a stub function via a function descriptor, but don't save |
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377 // TOC before call, don't setup TOC and ENV for call, and don't |
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378 // restore TOC after call. Updates and returns _last_calls_return_pc. |
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379 inline address call_stub(Register function_entry); |
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380 inline void call_stub_and_return_to(Register function_entry, Register return_pc); |
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381 |
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382 // |
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383 // Java utilities |
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384 // |
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385 |
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386 // Read from the polling page, its address is already in a register. |
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387 inline void load_from_polling_page(Register polling_page_address, int offset = 0); |
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388 // Check whether instruction is a read access to the polling page |
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389 // which was emitted by load_from_polling_page(..). |
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390 static bool is_load_from_polling_page(int instruction, void* ucontext/*may be NULL*/, |
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391 address* polling_address_ptr = NULL); |
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392 |
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393 // Check whether instruction is a write access to the memory |
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394 // serialization page realized by one of the instructions stw, stwu, |
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395 // stwx, or stwux. |
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396 static bool is_memory_serialization(int instruction, JavaThread* thread, void* ucontext); |
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397 |
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398 // Support for NULL-checks |
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399 // |
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400 // Generates code that causes a NULL OS exception if the content of reg is NULL. |
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401 // If the accessed location is M[reg + offset] and the offset is known, provide the |
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402 // offset. No explicit code generation is needed if the offset is within a certain |
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403 // range (0 <= offset <= page_size). |
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404 |
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405 // Stack overflow checking |
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406 void bang_stack_with_offset(int offset); |
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407 |
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408 // If instruction is a stack bang of the form ld, stdu, or |
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409 // stdux, return the banged address. Otherwise, return 0. |
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410 static address get_stack_bang_address(int instruction, void* ucontext); |
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411 |
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412 // Atomics |
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413 // CmpxchgX sets condition register to cmpX(current, compare). |
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414 // (flag == ne) => (dest_current_value != compare_value), (!swapped) |
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415 // (flag == eq) => (dest_current_value == compare_value), ( swapped) |
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416 static inline bool cmpxchgx_hint_acquire_lock() { return true; } |
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417 // The stxcx will probably not be succeeded by a releasing store. |
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|
418 static inline bool cmpxchgx_hint_release_lock() { return false; } |
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|
419 static inline bool cmpxchgx_hint_atomic_update() { return false; } |
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parents:
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changeset
|
420 |
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parents:
diff
changeset
|
421 // Cmpxchg semantics |
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parents:
diff
changeset
|
422 enum { |
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parents:
diff
changeset
|
423 MemBarNone = 0, |
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parents:
diff
changeset
|
424 MemBarRel = 1, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
425 MemBarAcq = 2, |
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parents:
diff
changeset
|
426 MemBarFenceAfter = 4 // use powers of 2 |
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parents:
diff
changeset
|
427 }; |
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parents:
diff
changeset
|
428 void cmpxchgw(ConditionRegister flag, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
429 Register dest_current_value, Register compare_value, Register exchange_value, Register addr_base, |
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changeset
|
430 int semantics, bool cmpxchgx_hint = false, |
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changeset
|
431 Register int_flag_success = noreg, bool contention_hint = false); |
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parents:
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changeset
|
432 void cmpxchgd(ConditionRegister flag, |
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parents:
diff
changeset
|
433 Register dest_current_value, Register compare_value, Register exchange_value, Register addr_base, |
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diff
changeset
|
434 int semantics, bool cmpxchgx_hint = false, |
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parents:
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changeset
|
435 Register int_flag_success = noreg, Label* failed = NULL, bool contention_hint = false); |
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parents:
diff
changeset
|
436 |
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parents:
diff
changeset
|
437 // interface method calling |
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parents:
diff
changeset
|
438 void lookup_interface_method(Register recv_klass, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
439 Register intf_klass, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
440 RegisterOrConstant itable_index, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
441 Register method_result, |
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parents:
diff
changeset
|
442 Register temp_reg, Register temp2_reg, |
ec28f9c041ff
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parents:
diff
changeset
|
443 Label& no_such_interface); |
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parents:
diff
changeset
|
444 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
445 // virtual method calling |
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changeset
|
446 void lookup_virtual_method(Register recv_klass, |
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parents:
diff
changeset
|
447 RegisterOrConstant vtable_index, |
ec28f9c041ff
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parents:
diff
changeset
|
448 Register method_result); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
449 |
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parents:
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changeset
|
450 // Test sub_klass against super_klass, with fast and slow paths. |
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changeset
|
451 |
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parents:
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changeset
|
452 // The fast path produces a tri-state answer: yes / no / maybe-slow. |
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changeset
|
453 // One of the three labels can be NULL, meaning take the fall-through. |
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changeset
|
454 // If super_check_offset is -1, the value is loaded up from super_klass. |
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changeset
|
455 // No registers are killed, except temp_reg and temp2_reg. |
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parents:
diff
changeset
|
456 // If super_check_offset is not -1, temp2_reg is not used and can be noreg. |
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parents:
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changeset
|
457 void check_klass_subtype_fast_path(Register sub_klass, |
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parents:
diff
changeset
|
458 Register super_klass, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
459 Register temp1_reg, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
460 Register temp2_reg, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
461 Label& L_success, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
462 Label& L_failure); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
463 |
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parents:
diff
changeset
|
464 // The rest of the type check; must be wired to a corresponding fast path. |
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|
465 // It does not repeat the fast path logic, so don't use it standalone. |
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diff
changeset
|
466 // The temp_reg can be noreg, if no temps are available. |
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|
467 // It can also be sub_klass or super_klass, meaning it's OK to kill that one. |
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parents:
diff
changeset
|
468 // Updates the sub's secondary super cache as necessary. |
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parents:
diff
changeset
|
469 void check_klass_subtype_slow_path(Register sub_klass, |
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parents:
diff
changeset
|
470 Register super_klass, |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
471 Register temp1_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
472 Register temp2_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
473 Label* L_success = NULL, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
474 Register result_reg = noreg); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
475 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
476 // Simplified, combined version, good for typical uses. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
477 // Falls through on failure. |
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parents:
diff
changeset
|
478 void check_klass_subtype(Register sub_klass, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
479 Register super_klass, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
480 Register temp1_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
481 Register temp2_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
482 Label& L_success); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
483 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
484 // Method handle support (JSR 292). |
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parents:
diff
changeset
|
485 void check_method_handle_type(Register mtype_reg, Register mh_reg, Register temp_reg, Label& wrong_method_type); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
486 |
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parents:
diff
changeset
|
487 RegisterOrConstant argument_offset(RegisterOrConstant arg_slot, Register temp_reg, int extra_slot_offset = 0); |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
488 |
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parents:
diff
changeset
|
489 // Biased locking support |
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parents:
diff
changeset
|
490 // Upon entry,obj_reg must contain the target object, and mark_reg |
ec28f9c041ff
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parents:
diff
changeset
|
491 // must contain the target object's header. |
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parents:
diff
changeset
|
492 // Destroys mark_reg if an attempt is made to bias an anonymously |
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parents:
diff
changeset
|
493 // biased lock. In this case a failure will go either to the slow |
ec28f9c041ff
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parents:
diff
changeset
|
494 // case or fall through with the notEqual condition code set with |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
495 // the expectation that the slow case in the runtime will be called. |
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parents:
diff
changeset
|
496 // In the fall-through case where the CAS-based lock is done, |
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parents:
diff
changeset
|
497 // mark_reg is not destroyed. |
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parents:
diff
changeset
|
498 void biased_locking_enter(ConditionRegister cr_reg, Register obj_reg, Register mark_reg, Register temp_reg, |
ec28f9c041ff
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parents:
diff
changeset
|
499 Register temp2_reg, Label& done, Label* slow_case = NULL); |
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parents:
diff
changeset
|
500 // Upon entry, the base register of mark_addr must contain the oop. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
501 // Destroys temp_reg. |
ec28f9c041ff
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parents:
diff
changeset
|
502 // If allow_delay_slot_filling is set to true, the next instruction |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
503 // emitted after this one will go in an annulled delay slot if the |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
504 // biased locking exit case failed. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
505 void biased_locking_exit(ConditionRegister cr_reg, Register mark_addr, Register temp_reg, Label& done); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
506 |
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parents:
diff
changeset
|
507 void compiler_fast_lock_object( ConditionRegister flag, Register oop, Register box, Register tmp1, Register tmp2, Register tmp3); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
508 void compiler_fast_unlock_object(ConditionRegister flag, Register oop, Register box, Register tmp1, Register tmp2, Register tmp3); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
509 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
510 // Support for serializing memory accesses between threads |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
511 void serialize_memory(Register thread, Register tmp1, Register tmp2); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
512 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
513 // GC barrier support. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
514 void card_write_barrier_post(Register Rstore_addr, Register Rnew_val, Register Rtmp); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
515 void card_table_write(jbyte* byte_map_base, Register Rtmp, Register Robj); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
516 |
17807 | 517 #if INCLUDE_ALL_GCS |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
518 // General G1 pre-barrier generator. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
519 void g1_write_barrier_pre(Register Robj, RegisterOrConstant offset, Register Rpre_val, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
520 Register Rtmp1, Register Rtmp2, bool needs_frame = false); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
521 // General G1 post-barrier generator |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
522 void g1_write_barrier_post(Register Rstore_addr, Register Rnew_val, Register Rtmp1, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
523 Register Rtmp2, Register Rtmp3, Label *filtered_ext = NULL); |
17807 | 524 #endif |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
525 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
526 // Support for managing the JavaThread pointer (i.e.; the reference to |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
527 // thread-local information). |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
528 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
529 // Support for last Java frame (but use call_VM instead where possible): |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
530 // access R16_thread->last_Java_sp. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
531 void set_last_Java_frame(Register last_java_sp, Register last_Java_pc); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
532 void reset_last_Java_frame(void); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
533 void set_top_ijava_frame_at_SP_as_last_Java_frame(Register sp, Register tmp1); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
534 |
ec28f9c041ff
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parents:
diff
changeset
|
535 // Read vm result from thread: oop_result = R16_thread->result; |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
536 void get_vm_result (Register oop_result); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
537 void get_vm_result_2(Register metadata_result); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
538 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
539 static bool needs_explicit_null_check(intptr_t offset); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
540 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
541 // Trap-instruction-based checks. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
542 // Range checks can be distinguished from zero checks as they check 32 bit, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
543 // zero checks all 64 bits (tw, td). |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
544 inline void trap_null_check(Register a, trap_to_bits cmp = traptoEqual); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
545 static bool is_trap_null_check(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
546 return is_tdi(x, traptoEqual, -1/*any reg*/, 0) || |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
547 is_tdi(x, traptoGreaterThanUnsigned, -1/*any reg*/, 0); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
548 } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
549 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
550 inline void trap_zombie_not_entrant(); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
551 static bool is_trap_zombie_not_entrant(int x) { return is_tdi(x, traptoUnconditional, 0/*reg 0*/, 1); } |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
552 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
553 inline void trap_should_not_reach_here(); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
554 static bool is_trap_should_not_reach_here(int x) { return is_tdi(x, traptoUnconditional, 0/*reg 0*/, 2); } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
555 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
556 inline void trap_ic_miss_check(Register a, Register b); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
557 static bool is_trap_ic_miss_check(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
558 return is_td(x, traptoGreaterThanUnsigned | traptoLessThanUnsigned, -1/*any reg*/, -1/*any reg*/); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
559 } |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
560 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
561 // Implicit or explicit null check, jumps to static address exception_entry. |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
562 inline void null_check_throw(Register a, int offset, Register temp_reg, address exception_entry); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
563 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
564 // Check accessed object for null. Use SIGTRAP-based null checks on AIX. |
14445 | 565 inline void load_with_trap_null_check(Register d, int si16, Register s1); |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
566 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
567 // Load heap oop and decompress. Loaded oop may not be null. |
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parents:
diff
changeset
|
568 inline void load_heap_oop_not_null(Register d, RegisterOrConstant offs, Register s1 = noreg); |
17804 | 569 inline void store_heap_oop_not_null(Register d, RegisterOrConstant offs, Register s1, |
570 /*specify if d must stay uncompressed*/ Register tmp = noreg); | |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
571 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
572 // Null allowed. |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
573 inline void load_heap_oop(Register d, RegisterOrConstant offs, Register s1 = noreg); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
574 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
575 // Encode/decode heap oop. Oop may not be null, else en/decoding goes wrong. |
17804 | 576 inline Register encode_heap_oop_not_null(Register d, Register src = noreg); |
14408
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goetz
parents:
diff
changeset
|
577 inline void decode_heap_oop_not_null(Register d); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
578 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
579 // Null allowed. |
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goetz
parents:
diff
changeset
|
580 inline void decode_heap_oop(Register d); |
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goetz
parents:
diff
changeset
|
581 |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
582 // Load/Store klass oop from klass field. Compress. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
583 void load_klass(Register dst, Register src); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
584 void load_klass_with_trap_null_check(Register dst, Register src); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
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|
585 void store_klass(Register dst_oop, Register klass, Register tmp = R0); |
17804 | 586 void store_klass_gap(Register dst_oop, Register val = noreg); // Will store 0 if val not specified. |
14427
eb178e97560c
8027968: Adapt PPC to 8024927: Nashorn performance regression with CompressedOops
goetz
parents:
14408
diff
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|
587 static int instr_size_for_decode_klass_not_null(); |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
588 void decode_klass_not_null(Register dst, Register src = noreg); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
589 void encode_klass_not_null(Register dst, Register src = noreg); |
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goetz
parents:
diff
changeset
|
590 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
591 // Load common heap base into register. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
592 void reinit_heapbase(Register d, Register tmp = noreg); |
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goetz
parents:
diff
changeset
|
593 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
594 // SIGTRAP-based range checks for arrays. |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
595 inline void trap_range_check_l(Register a, Register b); |
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parents:
diff
changeset
|
596 inline void trap_range_check_l(Register a, int si16); |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
597 static bool is_trap_range_check_l(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
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changeset
|
598 return (is_tw (x, traptoLessThanUnsigned, -1/*any reg*/, -1/*any reg*/) || |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
599 is_twi(x, traptoLessThanUnsigned, -1/*any reg*/) ); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
600 } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
601 inline void trap_range_check_le(Register a, int si16); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
602 static bool is_trap_range_check_le(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
603 return is_twi(x, traptoEqual | traptoLessThanUnsigned, -1/*any reg*/); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
604 } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
605 inline void trap_range_check_g(Register a, int si16); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
606 static bool is_trap_range_check_g(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
607 return is_twi(x, traptoGreaterThanUnsigned, -1/*any reg*/); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
608 } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
609 inline void trap_range_check_ge(Register a, Register b); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
610 inline void trap_range_check_ge(Register a, int si16); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
611 static bool is_trap_range_check_ge(int x) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
612 return (is_tw (x, traptoEqual | traptoGreaterThanUnsigned, -1/*any reg*/, -1/*any reg*/) || |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
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|
613 is_twi(x, traptoEqual | traptoGreaterThanUnsigned, -1/*any reg*/) ); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
614 } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
615 static bool is_trap_range_check(int x) { |
ec28f9c041ff
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parents:
diff
changeset
|
616 return is_trap_range_check_l(x) || is_trap_range_check_le(x) || |
ec28f9c041ff
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parents:
diff
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|
617 is_trap_range_check_g(x) || is_trap_range_check_ge(x); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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|
618 } |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
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|
619 |
14445 | 620 void clear_memory_doubleword(Register base_ptr, Register cnt_dwords, Register tmp = R0); |
621 | |
14408
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goetz
parents:
diff
changeset
|
622 // Needle of length 1. |
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parents:
diff
changeset
|
623 void string_indexof_1(Register result, Register haystack, Register haycnt, |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
624 Register needle, jchar needleChar, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
625 Register tmp1, Register tmp2); |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
626 // General indexof, eventually with constant needle length. |
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goetz
parents:
diff
changeset
|
627 void string_indexof(Register result, Register haystack, Register haycnt, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
628 Register needle, ciTypeArray* needle_values, Register needlecnt, int needlecntval, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
629 Register tmp1, Register tmp2, Register tmp3, Register tmp4); |
ec28f9c041ff
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parents:
diff
changeset
|
630 void string_compare(Register str1_reg, Register str2_reg, Register cnt1_reg, Register cnt2_reg, |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
631 Register result_reg, Register tmp_reg); |
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goetz
parents:
diff
changeset
|
632 void char_arrays_equals(Register str1_reg, Register str2_reg, Register cnt_reg, Register result_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
633 Register tmp1_reg, Register tmp2_reg, Register tmp3_reg, Register tmp4_reg, |
ec28f9c041ff
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parents:
diff
changeset
|
634 Register tmp5_reg); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
635 void char_arrays_equalsImm(Register str1_reg, Register str2_reg, int cntval, Register result_reg, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
636 Register tmp1_reg, Register tmp2_reg); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
637 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
638 // |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
639 // Debugging |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
640 // |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
641 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
642 // assert on cr0 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
643 void asm_assert(bool check_equal, const char* msg, int id); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
644 void asm_assert_eq(const char* msg, int id) { asm_assert(true, msg, id); } |
ec28f9c041ff
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parents:
diff
changeset
|
645 void asm_assert_ne(const char* msg, int id) { asm_assert(false, msg, id); } |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
646 |
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8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
647 private: |
ec28f9c041ff
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parents:
diff
changeset
|
648 void asm_assert_mems_zero(bool check_equal, int size, int mem_offset, Register mem_base, |
ec28f9c041ff
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parents:
diff
changeset
|
649 const char* msg, int id); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
650 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
651 public: |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
652 |
ec28f9c041ff
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parents:
diff
changeset
|
653 void asm_assert_mem8_is_zero(int mem_offset, Register mem_base, const char* msg, int id) { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
654 asm_assert_mems_zero(true, 8, mem_offset, mem_base, msg, id); |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
655 } |
ec28f9c041ff
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parents:
diff
changeset
|
656 void asm_assert_mem8_isnot_zero(int mem_offset, Register mem_base, const char* msg, int id) { |
ec28f9c041ff
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parents:
diff
changeset
|
657 asm_assert_mems_zero(false, 8, mem_offset, mem_base, msg, id); |
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parents:
diff
changeset
|
658 } |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
659 |
ec28f9c041ff
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parents:
diff
changeset
|
660 // Verify R16_thread contents. |
ec28f9c041ff
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parents:
diff
changeset
|
661 void verify_thread(); |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
662 |
ec28f9c041ff
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parents:
diff
changeset
|
663 // Emit code to verify that reg contains a valid oop if +VerifyOops is set. |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
664 void verify_oop(Register reg, const char* s = "broken oop"); |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
665 |
ec28f9c041ff
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parents:
diff
changeset
|
666 // TODO: verify method and klass metadata (compare against vptr?) |
ec28f9c041ff
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parents:
diff
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|
667 void _verify_method_ptr(Register reg, const char * msg, const char * file, int line) {} |
14445 | 668 void _verify_klass_ptr(Register reg, const char * msg, const char * file, int line) {} |
14408
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parents:
diff
changeset
|
669 |
17803 | 670 // Convenience method returning function entry. For the ELFv1 case |
671 // creates function descriptor at the current address and returs | |
672 // the pointer to it. For the ELFv2 case returns the current address. | |
673 inline address function_entry(); | |
674 | |
14408
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
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|
675 #define verify_method_ptr(reg) _verify_method_ptr(reg, "broken method " #reg, __FILE__, __LINE__) |
ec28f9c041ff
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parents:
diff
changeset
|
676 #define verify_klass_ptr(reg) _verify_klass_ptr(reg, "broken klass " #reg, __FILE__, __LINE__) |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
677 |
ec28f9c041ff
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goetz
parents:
diff
changeset
|
678 private: |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
679 |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff
changeset
|
680 enum { |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
681 stop_stop = 0, |
ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff
changeset
|
682 stop_untested = 1, |
ec28f9c041ff
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parents:
diff
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683 stop_unimplemented = 2, |
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684 stop_shouldnotreachhere = 3, |
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685 stop_end = 4 |
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686 }; |
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687 void stop(int type, const char* msg, int id); |
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688 |
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689 public: |
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690 // Prints msg, dumps registers and stops execution. |
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691 void stop (const char* msg = "", int id = 0) { stop(stop_stop, msg, id); } |
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692 void untested (const char* msg = "", int id = 0) { stop(stop_untested, msg, id); } |
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693 void unimplemented(const char* msg = "", int id = 0) { stop(stop_unimplemented, msg, id); } |
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694 void should_not_reach_here() { stop(stop_shouldnotreachhere, "", -1); } |
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695 |
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696 void zap_from_to(Register low, int before, Register high, int after, Register val, Register addr) PRODUCT_RETURN; |
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697 }; |
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698 |
17804 | 699 // class SkipIfEqualZero: |
700 // | |
701 // Instantiating this class will result in assembly code being output that will | |
702 // jump around any code emitted between the creation of the instance and it's | |
703 // automatic destruction at the end of a scope block, depending on the value of | |
704 // the flag passed to the constructor, which will be checked at run-time. | |
705 class SkipIfEqualZero : public StackObj { | |
706 private: | |
707 MacroAssembler* _masm; | |
708 Label _label; | |
709 | |
710 public: | |
711 // 'Temp' is a temp register that this object can use (and trash). | |
712 explicit SkipIfEqualZero(MacroAssembler*, Register temp, const bool* flag_addr); | |
713 ~SkipIfEqualZero(); | |
714 }; | |
715 | |
14408
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716 #endif // CPU_PPC_VM_MACROASSEMBLER_PPC_HPP |