Mercurial > hg > truffle
annotate src/share/vm/c1/c1_Compilation.hpp @ 5073:2db1ad9dd385
rename PiNode.value to PiNode.object and UnsafeCastNode.x to UnsafeCastNode.object
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 14 Mar 2012 16:57:18 +0100 |
parents | 1d1603768966 |
children | 137868b7aa6f |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_C1_C1_COMPILATION_HPP |
26 #define SHARE_VM_C1_C1_COMPILATION_HPP | |
27 | |
28 #include "ci/ciEnv.hpp" | |
29 #include "code/exceptionHandlerTable.hpp" | |
30 #include "memory/resourceArea.hpp" | |
31 | |
0 | 32 class CompilationResourceObj; |
33 class XHandlers; | |
34 class ExceptionInfo; | |
35 class DebugInformationRecorder; | |
36 class FrameMap; | |
37 class IR; | |
38 class IRScope; | |
39 class Instruction; | |
40 class LinearScan; | |
41 class OopMap; | |
42 class LIR_Emitter; | |
43 class LIR_Assembler; | |
44 class CodeEmitInfo; | |
45 class ciEnv; | |
46 class ciMethod; | |
47 class ValueStack; | |
48 class LIR_OprDesc; | |
49 class C1_MacroAssembler; | |
50 class CFGPrinter; | |
51 typedef LIR_OprDesc* LIR_Opr; | |
52 | |
53 | |
54 define_array(BasicTypeArray, BasicType) | |
55 define_stack(BasicTypeList, BasicTypeArray) | |
56 | |
57 define_array(ExceptionInfoArray, ExceptionInfo*) | |
58 define_stack(ExceptionInfoList, ExceptionInfoArray) | |
59 | |
60 class Compilation: public StackObj { | |
61 friend class CompilationResourceObj; | |
62 private: | |
63 // compilation specifics | |
1584 | 64 Arena* _arena; |
65 int _next_id; | |
66 int _next_block_id; | |
0 | 67 AbstractCompiler* _compiler; |
68 ciEnv* _env; | |
69 ciMethod* _method; | |
70 int _osr_bci; | |
71 IR* _hir; | |
72 int _max_spills; | |
73 FrameMap* _frame_map; | |
74 C1_MacroAssembler* _masm; | |
75 bool _has_exception_handlers; | |
76 bool _has_fpu_code; | |
77 bool _has_unsafe_access; | |
1783 | 78 bool _would_profile; |
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79 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
0 | 80 const char* _bailout_msg; |
81 ExceptionInfoList* _exception_info_list; | |
82 ExceptionHandlerTable _exception_handler_table; | |
83 ImplicitExceptionTable _implicit_exception_table; | |
84 LinearScan* _allocator; | |
85 CodeOffsets _offsets; | |
86 CodeBuffer _code; | |
87 | |
88 // compilation helpers | |
89 void initialize(); | |
90 void build_hir(); | |
91 void emit_lir(); | |
92 | |
93 void emit_code_epilog(LIR_Assembler* assembler); | |
94 int emit_code_body(); | |
95 | |
96 int compile_java_method(); | |
97 void install_code(int frame_size); | |
98 void compile_method(); | |
99 | |
100 void generate_exception_handler_table(); | |
101 | |
102 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } | |
103 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } | |
104 | |
105 LinearScan* allocator() { return _allocator; } | |
106 void set_allocator(LinearScan* allocator) { _allocator = allocator; } | |
107 | |
108 Instruction* _current_instruction; // the instruction currently being processed | |
109 #ifndef PRODUCT | |
110 Instruction* _last_instruction_printed; // the last instruction printed during traversal | |
111 #endif // PRODUCT | |
112 | |
113 public: | |
114 // creation | |
1584 | 115 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
116 int osr_bci, BufferBlob* buffer_blob); | |
0 | 117 ~Compilation(); |
118 | |
1584 | 119 |
120 static Compilation* current() { | |
121 return (Compilation*) ciEnv::current()->compiler_data(); | |
122 } | |
0 | 123 |
124 // accessors | |
125 ciEnv* env() const { return _env; } | |
126 AbstractCompiler* compiler() const { return _compiler; } | |
127 bool has_exception_handlers() const { return _has_exception_handlers; } | |
128 bool has_fpu_code() const { return _has_fpu_code; } | |
129 bool has_unsafe_access() const { return _has_unsafe_access; } | |
130 ciMethod* method() const { return _method; } | |
131 int osr_bci() const { return _osr_bci; } | |
132 bool is_osr_compile() const { return osr_bci() >= 0; } | |
133 IR* hir() const { return _hir; } | |
134 int max_spills() const { return _max_spills; } | |
135 FrameMap* frame_map() const { return _frame_map; } | |
136 CodeBuffer* code() { return &_code; } | |
137 C1_MacroAssembler* masm() const { return _masm; } | |
138 CodeOffsets* offsets() { return &_offsets; } | |
1584 | 139 Arena* arena() { return _arena; } |
140 | |
141 // Instruction ids | |
142 int get_next_id() { return _next_id++; } | |
143 int number_of_instructions() const { return _next_id; } | |
144 | |
145 // BlockBegin ids | |
146 int get_next_block_id() { return _next_block_id++; } | |
147 int number_of_blocks() const { return _next_block_id; } | |
0 | 148 |
149 // setters | |
150 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } | |
151 void set_has_fpu_code(bool f) { _has_fpu_code = f; } | |
152 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } | |
1783 | 153 void set_would_profile(bool f) { _would_profile = f; } |
0 | 154 // Add a set of exception handlers covering the given PC offset |
155 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); | |
156 // Statistics gathering | |
157 void notice_inlined_method(ciMethod* method); | |
158 | |
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159 // JSR 292 |
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160 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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161 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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162 |
0 | 163 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
164 Dependencies* dependency_recorder() const; // = _env->dependencies() | |
165 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } | |
166 | |
167 Instruction* current_instruction() const { return _current_instruction; } | |
168 Instruction* set_current_instruction(Instruction* instr) { | |
169 Instruction* previous = _current_instruction; | |
170 _current_instruction = instr; | |
171 return previous; | |
172 } | |
173 | |
174 #ifndef PRODUCT | |
175 void maybe_print_current_instruction(); | |
176 #endif // PRODUCT | |
177 | |
178 // error handling | |
179 void bailout(const char* msg); | |
180 bool bailed_out() const { return _bailout_msg != NULL; } | |
181 const char* bailout_msg() const { return _bailout_msg; } | |
182 | |
1584 | 183 static int desired_max_code_buffer_size() { |
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184 #ifndef PPC |
1584 | 185 return (int) NMethodSizeLimit; // default 256K or 512K |
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186 #else |
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187 // conditional branches on PPC are restricted to 16 bit signed |
1899 | 188 return MIN2((unsigned int)NMethodSizeLimit,32*K); |
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189 #endif |
1584 | 190 } |
191 static int desired_max_constant_size() { | |
1899 | 192 return desired_max_code_buffer_size() / 10; |
1584 | 193 } |
194 | |
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195 static bool setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
1584 | 196 |
0 | 197 // timers |
198 static void print_timers(); | |
199 | |
200 #ifndef PRODUCT | |
201 // debugging support. | |
202 // produces a file named c1compileonly in the current directory with | |
203 // directives to compile only the current method and it's inlines. | |
204 // The file can be passed to the command line option -XX:Flags=<filename> | |
205 void compile_only_this_method(); | |
206 void compile_only_this_scope(outputStream* st, IRScope* scope); | |
207 void exclude_this_method(); | |
208 #endif // PRODUCT | |
1783 | 209 |
210 bool is_profiling() { | |
211 return env()->comp_level() == CompLevel_full_profile || | |
212 env()->comp_level() == CompLevel_limited_profile; | |
213 } | |
214 bool count_invocations() { return is_profiling(); } | |
215 bool count_backedges() { return is_profiling(); } | |
216 | |
217 // Helpers for generation of profile information | |
218 bool profile_branches() { | |
219 return env()->comp_level() == CompLevel_full_profile && | |
220 C1UpdateMethodData && C1ProfileBranches; | |
221 } | |
222 bool profile_calls() { | |
223 return env()->comp_level() == CompLevel_full_profile && | |
224 C1UpdateMethodData && C1ProfileCalls; | |
225 } | |
226 bool profile_inlined_calls() { | |
227 return profile_calls() && C1ProfileInlinedCalls; | |
228 } | |
229 bool profile_checkcasts() { | |
230 return env()->comp_level() == CompLevel_full_profile && | |
231 C1UpdateMethodData && C1ProfileCheckcasts; | |
232 } | |
0 | 233 }; |
234 | |
235 | |
236 // Macro definitions for unified bailout-support | |
237 // The methods bailout() and bailed_out() are present in all classes | |
238 // that might bailout, but forward all calls to Compilation | |
239 #define BAILOUT(msg) { bailout(msg); return; } | |
240 #define BAILOUT_(msg, res) { bailout(msg); return res; } | |
241 | |
242 #define CHECK_BAILOUT() { if (bailed_out()) return; } | |
243 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } | |
244 | |
245 | |
246 class InstructionMark: public StackObj { | |
247 private: | |
248 Compilation* _compilation; | |
249 Instruction* _previous; | |
250 | |
251 public: | |
252 InstructionMark(Compilation* compilation, Instruction* instr) { | |
253 _compilation = compilation; | |
254 _previous = _compilation->set_current_instruction(instr); | |
255 } | |
256 ~InstructionMark() { | |
257 _compilation->set_current_instruction(_previous); | |
258 } | |
259 }; | |
260 | |
261 | |
262 //---------------------------------------------------------------------- | |
263 // Base class for objects allocated by the compiler in the compilation arena | |
264 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { | |
265 public: | |
1584 | 266 void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } |
267 void* operator new(size_t size, Arena* arena) { | |
268 return arena->Amalloc(size); | |
269 } | |
0 | 270 void operator delete(void* p) {} // nothing to do |
271 }; | |
272 | |
273 | |
274 //---------------------------------------------------------------------- | |
275 // Class for aggregating exception handler information. | |
276 | |
277 // Effectively extends XHandlers class with PC offset of | |
278 // potentially exception-throwing instruction. | |
279 // This class is used at the end of the compilation to build the | |
280 // ExceptionHandlerTable. | |
281 class ExceptionInfo: public CompilationResourceObj { | |
282 private: | |
283 int _pco; // PC of potentially exception-throwing instruction | |
284 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC | |
285 | |
286 public: | |
287 ExceptionInfo(int pco, XHandlers* exception_handlers) | |
288 : _pco(pco) | |
289 , _exception_handlers(exception_handlers) | |
290 { } | |
291 | |
292 int pco() { return _pco; } | |
293 XHandlers* exception_handlers() { return _exception_handlers; } | |
294 }; | |
1972 | 295 |
296 #endif // SHARE_VM_C1_C1_COMPILATION_HPP |