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1 /* |
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2 * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 class BlockBegin; |
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26 class CompilationResourceObj; |
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27 class XHandlers; |
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28 class ExceptionInfo; |
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29 class DebugInformationRecorder; |
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30 class FrameMap; |
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31 class IR; |
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32 class IRScope; |
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33 class Instruction; |
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34 class LinearScan; |
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35 class OopMap; |
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36 class LIR_Emitter; |
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37 class LIR_Assembler; |
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38 class CodeEmitInfo; |
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39 class ciEnv; |
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40 class ciMethod; |
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41 class ValueStack; |
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42 class LIR_OprDesc; |
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43 class C1_MacroAssembler; |
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44 class CFGPrinter; |
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45 typedef LIR_OprDesc* LIR_Opr; |
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46 |
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47 |
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48 define_array(BasicTypeArray, BasicType) |
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49 define_stack(BasicTypeList, BasicTypeArray) |
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50 |
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51 define_array(ExceptionInfoArray, ExceptionInfo*) |
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52 define_stack(ExceptionInfoList, ExceptionInfoArray) |
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53 |
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54 class Compilation: public StackObj { |
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55 friend class CompilationResourceObj; |
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56 private: |
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57 |
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58 static Arena* _arena; |
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59 static Arena* arena() { return _arena; } |
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60 |
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61 static Compilation* _compilation; |
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62 |
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63 private: |
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64 // compilation specifics |
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65 AbstractCompiler* _compiler; |
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66 ciEnv* _env; |
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67 ciMethod* _method; |
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68 int _osr_bci; |
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69 IR* _hir; |
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70 int _max_spills; |
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71 FrameMap* _frame_map; |
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72 C1_MacroAssembler* _masm; |
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73 bool _needs_debug_information; |
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74 bool _has_exception_handlers; |
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75 bool _has_fpu_code; |
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76 bool _has_unsafe_access; |
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77 const char* _bailout_msg; |
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78 ExceptionInfoList* _exception_info_list; |
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79 ExceptionHandlerTable _exception_handler_table; |
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80 ImplicitExceptionTable _implicit_exception_table; |
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81 LinearScan* _allocator; |
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82 CodeOffsets _offsets; |
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83 CodeBuffer _code; |
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84 |
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85 // compilation helpers |
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86 void initialize(); |
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87 void build_hir(); |
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88 void emit_lir(); |
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89 |
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90 void emit_code_epilog(LIR_Assembler* assembler); |
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91 int emit_code_body(); |
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92 |
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93 int compile_java_method(); |
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94 void install_code(int frame_size); |
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95 void compile_method(); |
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96 |
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97 void generate_exception_handler_table(); |
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98 |
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99 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } |
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100 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } |
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101 |
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102 LinearScan* allocator() { return _allocator; } |
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103 void set_allocator(LinearScan* allocator) { _allocator = allocator; } |
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104 |
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105 Instruction* _current_instruction; // the instruction currently being processed |
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106 #ifndef PRODUCT |
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107 Instruction* _last_instruction_printed; // the last instruction printed during traversal |
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108 #endif // PRODUCT |
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109 |
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110 public: |
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111 // creation |
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112 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, int osr_bci); |
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113 ~Compilation(); |
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114 |
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115 static Compilation* current_compilation() { return _compilation; } |
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116 |
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117 // accessors |
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118 ciEnv* env() const { return _env; } |
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119 AbstractCompiler* compiler() const { return _compiler; } |
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120 bool needs_debug_information() const { return _needs_debug_information; } |
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121 bool has_exception_handlers() const { return _has_exception_handlers; } |
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122 bool has_fpu_code() const { return _has_fpu_code; } |
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123 bool has_unsafe_access() const { return _has_unsafe_access; } |
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124 ciMethod* method() const { return _method; } |
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125 int osr_bci() const { return _osr_bci; } |
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126 bool is_osr_compile() const { return osr_bci() >= 0; } |
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127 IR* hir() const { return _hir; } |
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128 int max_spills() const { return _max_spills; } |
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129 FrameMap* frame_map() const { return _frame_map; } |
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130 CodeBuffer* code() { return &_code; } |
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131 C1_MacroAssembler* masm() const { return _masm; } |
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132 CodeOffsets* offsets() { return &_offsets; } |
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133 |
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134 // setters |
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135 void set_needs_debug_information(bool f) { _needs_debug_information = f; } |
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136 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } |
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137 void set_has_fpu_code(bool f) { _has_fpu_code = f; } |
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138 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } |
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139 // Add a set of exception handlers covering the given PC offset |
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140 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); |
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141 // Statistics gathering |
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142 void notice_inlined_method(ciMethod* method); |
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143 |
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144 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
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145 Dependencies* dependency_recorder() const; // = _env->dependencies() |
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146 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } |
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147 |
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148 Instruction* current_instruction() const { return _current_instruction; } |
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149 Instruction* set_current_instruction(Instruction* instr) { |
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150 Instruction* previous = _current_instruction; |
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151 _current_instruction = instr; |
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152 return previous; |
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153 } |
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154 |
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155 #ifndef PRODUCT |
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156 void maybe_print_current_instruction(); |
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157 #endif // PRODUCT |
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158 |
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159 // error handling |
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160 void bailout(const char* msg); |
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161 bool bailed_out() const { return _bailout_msg != NULL; } |
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162 const char* bailout_msg() const { return _bailout_msg; } |
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163 |
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164 // timers |
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165 static void print_timers(); |
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166 |
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167 #ifndef PRODUCT |
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168 // debugging support. |
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169 // produces a file named c1compileonly in the current directory with |
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170 // directives to compile only the current method and it's inlines. |
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171 // The file can be passed to the command line option -XX:Flags=<filename> |
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172 void compile_only_this_method(); |
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173 void compile_only_this_scope(outputStream* st, IRScope* scope); |
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174 void exclude_this_method(); |
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175 #endif // PRODUCT |
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176 }; |
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177 |
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178 |
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179 // Macro definitions for unified bailout-support |
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180 // The methods bailout() and bailed_out() are present in all classes |
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181 // that might bailout, but forward all calls to Compilation |
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182 #define BAILOUT(msg) { bailout(msg); return; } |
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183 #define BAILOUT_(msg, res) { bailout(msg); return res; } |
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184 |
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185 #define CHECK_BAILOUT() { if (bailed_out()) return; } |
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186 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } |
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187 |
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188 |
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189 class InstructionMark: public StackObj { |
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190 private: |
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191 Compilation* _compilation; |
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192 Instruction* _previous; |
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193 |
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194 public: |
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195 InstructionMark(Compilation* compilation, Instruction* instr) { |
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196 _compilation = compilation; |
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197 _previous = _compilation->set_current_instruction(instr); |
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198 } |
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199 ~InstructionMark() { |
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200 _compilation->set_current_instruction(_previous); |
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201 } |
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202 }; |
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203 |
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204 |
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205 //---------------------------------------------------------------------- |
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206 // Base class for objects allocated by the compiler in the compilation arena |
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207 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { |
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208 public: |
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209 void* operator new(size_t size) { return Compilation::arena()->Amalloc(size); } |
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210 void operator delete(void* p) {} // nothing to do |
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211 }; |
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212 |
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213 |
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214 //---------------------------------------------------------------------- |
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215 // Class for aggregating exception handler information. |
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216 |
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217 // Effectively extends XHandlers class with PC offset of |
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218 // potentially exception-throwing instruction. |
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219 // This class is used at the end of the compilation to build the |
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220 // ExceptionHandlerTable. |
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221 class ExceptionInfo: public CompilationResourceObj { |
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222 private: |
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223 int _pco; // PC of potentially exception-throwing instruction |
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224 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC |
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225 |
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226 public: |
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227 ExceptionInfo(int pco, XHandlers* exception_handlers) |
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228 : _pco(pco) |
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229 , _exception_handlers(exception_handlers) |
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230 { } |
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231 |
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232 int pco() { return _pco; } |
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233 XHandlers* exception_handlers() { return _exception_handlers; } |
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234 }; |