Mercurial > hg > graal-compiler
annotate src/share/vm/c1/c1_Compilation.hpp @ 9787:3207fae2e2f6
Value: do equals test of `name' as assertion
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Tue, 21 May 2013 18:03:35 +0200 |
parents | 46f6f063b272 |
children | 9758d9f36299 |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, 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" | |
8860 | 29 #include "ci/ciMethodData.hpp" |
1972 | 30 #include "code/exceptionHandlerTable.hpp" |
31 #include "memory/resourceArea.hpp" | |
8860 | 32 #include "runtime/deoptimization.hpp" |
1972 | 33 |
0 | 34 class CompilationResourceObj; |
35 class XHandlers; | |
36 class ExceptionInfo; | |
37 class DebugInformationRecorder; | |
38 class FrameMap; | |
39 class IR; | |
40 class IRScope; | |
41 class Instruction; | |
42 class LinearScan; | |
43 class OopMap; | |
44 class LIR_Emitter; | |
45 class LIR_Assembler; | |
46 class CodeEmitInfo; | |
47 class ciEnv; | |
48 class ciMethod; | |
49 class ValueStack; | |
50 class LIR_OprDesc; | |
51 class C1_MacroAssembler; | |
52 class CFGPrinter; | |
53 typedef LIR_OprDesc* LIR_Opr; | |
54 | |
55 | |
56 define_array(BasicTypeArray, BasicType) | |
57 define_stack(BasicTypeList, BasicTypeArray) | |
58 | |
59 define_array(ExceptionInfoArray, ExceptionInfo*) | |
60 define_stack(ExceptionInfoList, ExceptionInfoArray) | |
61 | |
62 class Compilation: public StackObj { | |
63 friend class CompilationResourceObj; | |
64 private: | |
65 // compilation specifics | |
1584 | 66 Arena* _arena; |
67 int _next_id; | |
68 int _next_block_id; | |
0 | 69 AbstractCompiler* _compiler; |
70 ciEnv* _env; | |
6843 | 71 CompileLog* _log; |
0 | 72 ciMethod* _method; |
73 int _osr_bci; | |
74 IR* _hir; | |
75 int _max_spills; | |
76 FrameMap* _frame_map; | |
77 C1_MacroAssembler* _masm; | |
78 bool _has_exception_handlers; | |
79 bool _has_fpu_code; | |
80 bool _has_unsafe_access; | |
1783 | 81 bool _would_profile; |
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82 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
0 | 83 const char* _bailout_msg; |
84 ExceptionInfoList* _exception_info_list; | |
85 ExceptionHandlerTable _exception_handler_table; | |
86 ImplicitExceptionTable _implicit_exception_table; | |
87 LinearScan* _allocator; | |
88 CodeOffsets _offsets; | |
89 CodeBuffer _code; | |
8860 | 90 bool _has_access_indexed; |
0 | 91 |
92 // compilation helpers | |
93 void initialize(); | |
94 void build_hir(); | |
95 void emit_lir(); | |
96 | |
97 void emit_code_epilog(LIR_Assembler* assembler); | |
98 int emit_code_body(); | |
99 | |
100 int compile_java_method(); | |
101 void install_code(int frame_size); | |
102 void compile_method(); | |
103 | |
104 void generate_exception_handler_table(); | |
105 | |
106 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } | |
107 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } | |
108 | |
109 LinearScan* allocator() { return _allocator; } | |
110 void set_allocator(LinearScan* allocator) { _allocator = allocator; } | |
111 | |
112 Instruction* _current_instruction; // the instruction currently being processed | |
113 #ifndef PRODUCT | |
114 Instruction* _last_instruction_printed; // the last instruction printed during traversal | |
115 #endif // PRODUCT | |
116 | |
117 public: | |
118 // creation | |
1584 | 119 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
120 int osr_bci, BufferBlob* buffer_blob); | |
0 | 121 ~Compilation(); |
122 | |
1584 | 123 |
124 static Compilation* current() { | |
125 return (Compilation*) ciEnv::current()->compiler_data(); | |
126 } | |
0 | 127 |
128 // accessors | |
129 ciEnv* env() const { return _env; } | |
6843 | 130 CompileLog* log() const { return _log; } |
0 | 131 AbstractCompiler* compiler() const { return _compiler; } |
132 bool has_exception_handlers() const { return _has_exception_handlers; } | |
133 bool has_fpu_code() const { return _has_fpu_code; } | |
134 bool has_unsafe_access() const { return _has_unsafe_access; } | |
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135 int max_vector_size() const { return 0; } |
0 | 136 ciMethod* method() const { return _method; } |
137 int osr_bci() const { return _osr_bci; } | |
138 bool is_osr_compile() const { return osr_bci() >= 0; } | |
139 IR* hir() const { return _hir; } | |
140 int max_spills() const { return _max_spills; } | |
141 FrameMap* frame_map() const { return _frame_map; } | |
142 CodeBuffer* code() { return &_code; } | |
143 C1_MacroAssembler* masm() const { return _masm; } | |
144 CodeOffsets* offsets() { return &_offsets; } | |
1584 | 145 Arena* arena() { return _arena; } |
8860 | 146 bool has_access_indexed() { return _has_access_indexed; } |
1584 | 147 |
148 // Instruction ids | |
149 int get_next_id() { return _next_id++; } | |
150 int number_of_instructions() const { return _next_id; } | |
151 | |
152 // BlockBegin ids | |
153 int get_next_block_id() { return _next_block_id++; } | |
154 int number_of_blocks() const { return _next_block_id; } | |
0 | 155 |
156 // setters | |
157 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } | |
158 void set_has_fpu_code(bool f) { _has_fpu_code = f; } | |
159 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } | |
1783 | 160 void set_would_profile(bool f) { _would_profile = f; } |
8860 | 161 void set_has_access_indexed(bool f) { _has_access_indexed = f; } |
0 | 162 // Add a set of exception handlers covering the given PC offset |
163 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); | |
164 // Statistics gathering | |
165 void notice_inlined_method(ciMethod* method); | |
166 | |
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167 // JSR 292 |
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168 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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169 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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170 |
0 | 171 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
172 Dependencies* dependency_recorder() const; // = _env->dependencies() | |
173 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } | |
174 | |
175 Instruction* current_instruction() const { return _current_instruction; } | |
176 Instruction* set_current_instruction(Instruction* instr) { | |
177 Instruction* previous = _current_instruction; | |
178 _current_instruction = instr; | |
179 return previous; | |
180 } | |
181 | |
182 #ifndef PRODUCT | |
183 void maybe_print_current_instruction(); | |
184 #endif // PRODUCT | |
185 | |
186 // error handling | |
187 void bailout(const char* msg); | |
188 bool bailed_out() const { return _bailout_msg != NULL; } | |
189 const char* bailout_msg() const { return _bailout_msg; } | |
190 | |
1584 | 191 static int desired_max_code_buffer_size() { |
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192 #ifndef PPC |
1584 | 193 return (int) NMethodSizeLimit; // default 256K or 512K |
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194 #else |
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195 // conditional branches on PPC are restricted to 16 bit signed |
1899 | 196 return MIN2((unsigned int)NMethodSizeLimit,32*K); |
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197 #endif |
1584 | 198 } |
199 static int desired_max_constant_size() { | |
1899 | 200 return desired_max_code_buffer_size() / 10; |
1584 | 201 } |
202 | |
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203 static bool setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
1584 | 204 |
0 | 205 // timers |
206 static void print_timers(); | |
207 | |
208 #ifndef PRODUCT | |
209 // debugging support. | |
210 // produces a file named c1compileonly in the current directory with | |
211 // directives to compile only the current method and it's inlines. | |
212 // The file can be passed to the command line option -XX:Flags=<filename> | |
213 void compile_only_this_method(); | |
214 void compile_only_this_scope(outputStream* st, IRScope* scope); | |
215 void exclude_this_method(); | |
216 #endif // PRODUCT | |
1783 | 217 |
218 bool is_profiling() { | |
219 return env()->comp_level() == CompLevel_full_profile || | |
220 env()->comp_level() == CompLevel_limited_profile; | |
221 } | |
222 bool count_invocations() { return is_profiling(); } | |
223 bool count_backedges() { return is_profiling(); } | |
224 | |
225 // Helpers for generation of profile information | |
226 bool profile_branches() { | |
227 return env()->comp_level() == CompLevel_full_profile && | |
228 C1UpdateMethodData && C1ProfileBranches; | |
229 } | |
230 bool profile_calls() { | |
231 return env()->comp_level() == CompLevel_full_profile && | |
232 C1UpdateMethodData && C1ProfileCalls; | |
233 } | |
234 bool profile_inlined_calls() { | |
235 return profile_calls() && C1ProfileInlinedCalls; | |
236 } | |
237 bool profile_checkcasts() { | |
238 return env()->comp_level() == CompLevel_full_profile && | |
239 C1UpdateMethodData && C1ProfileCheckcasts; | |
240 } | |
8860 | 241 |
242 // will compilation make optimistic assumptions that might lead to | |
243 // deoptimization and that the runtime will account for? | |
244 bool is_optimistic() const { | |
245 return !TieredCompilation && | |
246 (RangeCheckElimination || UseLoopInvariantCodeMotion) && | |
247 method()->method_data()->trap_count(Deoptimization::Reason_none) == 0; | |
248 } | |
0 | 249 }; |
250 | |
251 | |
252 // Macro definitions for unified bailout-support | |
253 // The methods bailout() and bailed_out() are present in all classes | |
254 // that might bailout, but forward all calls to Compilation | |
255 #define BAILOUT(msg) { bailout(msg); return; } | |
256 #define BAILOUT_(msg, res) { bailout(msg); return res; } | |
257 | |
258 #define CHECK_BAILOUT() { if (bailed_out()) return; } | |
259 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } | |
260 | |
261 | |
262 class InstructionMark: public StackObj { | |
263 private: | |
264 Compilation* _compilation; | |
265 Instruction* _previous; | |
266 | |
267 public: | |
268 InstructionMark(Compilation* compilation, Instruction* instr) { | |
269 _compilation = compilation; | |
270 _previous = _compilation->set_current_instruction(instr); | |
271 } | |
272 ~InstructionMark() { | |
273 _compilation->set_current_instruction(_previous); | |
274 } | |
275 }; | |
276 | |
277 | |
278 //---------------------------------------------------------------------- | |
279 // Base class for objects allocated by the compiler in the compilation arena | |
280 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { | |
281 public: | |
1584 | 282 void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } |
283 void* operator new(size_t size, Arena* arena) { | |
284 return arena->Amalloc(size); | |
285 } | |
0 | 286 void operator delete(void* p) {} // nothing to do |
287 }; | |
288 | |
289 | |
290 //---------------------------------------------------------------------- | |
291 // Class for aggregating exception handler information. | |
292 | |
293 // Effectively extends XHandlers class with PC offset of | |
294 // potentially exception-throwing instruction. | |
295 // This class is used at the end of the compilation to build the | |
296 // ExceptionHandlerTable. | |
297 class ExceptionInfo: public CompilationResourceObj { | |
298 private: | |
299 int _pco; // PC of potentially exception-throwing instruction | |
300 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC | |
301 | |
302 public: | |
303 ExceptionInfo(int pco, XHandlers* exception_handlers) | |
304 : _pco(pco) | |
305 , _exception_handlers(exception_handlers) | |
306 { } | |
307 | |
308 int pco() { return _pco; } | |
309 XHandlers* exception_handlers() { return _exception_handlers; } | |
310 }; | |
1972 | 311 |
312 #endif // SHARE_VM_C1_C1_COMPILATION_HPP |