Mercurial > hg > truffle
annotate src/share/vm/c1/c1_Compilation.hpp @ 1783:d5d065957597
6953144: Tiered compilation
Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.
Reviewed-by: kvn, never, phh, twisti
author | iveresov |
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date | Fri, 03 Sep 2010 17:51:07 -0700 |
parents | 4a665be40fd3 |
children | f02a8bbe6ed4 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2010, 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 | |
25 class BlockBegin; | |
26 class CompilationResourceObj; | |
27 class XHandlers; | |
28 class ExceptionInfo; | |
29 class DebugInformationRecorder; | |
30 class FrameMap; | |
31 class IR; | |
32 class IRScope; | |
33 class Instruction; | |
34 class LinearScan; | |
35 class OopMap; | |
36 class LIR_Emitter; | |
37 class LIR_Assembler; | |
38 class CodeEmitInfo; | |
39 class ciEnv; | |
40 class ciMethod; | |
41 class ValueStack; | |
42 class LIR_OprDesc; | |
43 class C1_MacroAssembler; | |
44 class CFGPrinter; | |
45 typedef LIR_OprDesc* LIR_Opr; | |
46 | |
47 | |
48 define_array(BasicTypeArray, BasicType) | |
49 define_stack(BasicTypeList, BasicTypeArray) | |
50 | |
51 define_array(ExceptionInfoArray, ExceptionInfo*) | |
52 define_stack(ExceptionInfoList, ExceptionInfoArray) | |
53 | |
54 class Compilation: public StackObj { | |
55 friend class CompilationResourceObj; | |
56 private: | |
57 // compilation specifics | |
1584 | 58 Arena* _arena; |
59 int _next_id; | |
60 int _next_block_id; | |
0 | 61 AbstractCompiler* _compiler; |
62 ciEnv* _env; | |
63 ciMethod* _method; | |
64 int _osr_bci; | |
65 IR* _hir; | |
66 int _max_spills; | |
67 FrameMap* _frame_map; | |
68 C1_MacroAssembler* _masm; | |
69 bool _has_exception_handlers; | |
70 bool _has_fpu_code; | |
71 bool _has_unsafe_access; | |
1783 | 72 bool _would_profile; |
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73 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
0 | 74 const char* _bailout_msg; |
75 ExceptionInfoList* _exception_info_list; | |
76 ExceptionHandlerTable _exception_handler_table; | |
77 ImplicitExceptionTable _implicit_exception_table; | |
78 LinearScan* _allocator; | |
79 CodeOffsets _offsets; | |
80 CodeBuffer _code; | |
81 | |
82 // compilation helpers | |
83 void initialize(); | |
84 void build_hir(); | |
85 void emit_lir(); | |
86 | |
87 void emit_code_epilog(LIR_Assembler* assembler); | |
88 int emit_code_body(); | |
89 | |
90 int compile_java_method(); | |
91 void install_code(int frame_size); | |
92 void compile_method(); | |
93 | |
94 void generate_exception_handler_table(); | |
95 | |
96 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } | |
97 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } | |
98 | |
99 LinearScan* allocator() { return _allocator; } | |
100 void set_allocator(LinearScan* allocator) { _allocator = allocator; } | |
101 | |
102 Instruction* _current_instruction; // the instruction currently being processed | |
103 #ifndef PRODUCT | |
104 Instruction* _last_instruction_printed; // the last instruction printed during traversal | |
105 #endif // PRODUCT | |
106 | |
107 public: | |
108 // creation | |
1584 | 109 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
110 int osr_bci, BufferBlob* buffer_blob); | |
0 | 111 ~Compilation(); |
112 | |
1584 | 113 |
114 static Compilation* current() { | |
115 return (Compilation*) ciEnv::current()->compiler_data(); | |
116 } | |
0 | 117 |
118 // accessors | |
119 ciEnv* env() const { return _env; } | |
120 AbstractCompiler* compiler() const { return _compiler; } | |
121 bool has_exception_handlers() const { return _has_exception_handlers; } | |
122 bool has_fpu_code() const { return _has_fpu_code; } | |
123 bool has_unsafe_access() const { return _has_unsafe_access; } | |
124 ciMethod* method() const { return _method; } | |
125 int osr_bci() const { return _osr_bci; } | |
126 bool is_osr_compile() const { return osr_bci() >= 0; } | |
127 IR* hir() const { return _hir; } | |
128 int max_spills() const { return _max_spills; } | |
129 FrameMap* frame_map() const { return _frame_map; } | |
130 CodeBuffer* code() { return &_code; } | |
131 C1_MacroAssembler* masm() const { return _masm; } | |
132 CodeOffsets* offsets() { return &_offsets; } | |
1584 | 133 Arena* arena() { return _arena; } |
134 | |
135 // Instruction ids | |
136 int get_next_id() { return _next_id++; } | |
137 int number_of_instructions() const { return _next_id; } | |
138 | |
139 // BlockBegin ids | |
140 int get_next_block_id() { return _next_block_id++; } | |
141 int number_of_blocks() const { return _next_block_id; } | |
0 | 142 |
143 // setters | |
144 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } | |
145 void set_has_fpu_code(bool f) { _has_fpu_code = f; } | |
146 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } | |
1783 | 147 void set_would_profile(bool f) { _would_profile = f; } |
0 | 148 // Add a set of exception handlers covering the given PC offset |
149 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); | |
150 // Statistics gathering | |
151 void notice_inlined_method(ciMethod* method); | |
152 | |
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153 // JSR 292 |
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154 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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155 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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156 |
0 | 157 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
158 Dependencies* dependency_recorder() const; // = _env->dependencies() | |
159 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } | |
160 | |
161 Instruction* current_instruction() const { return _current_instruction; } | |
162 Instruction* set_current_instruction(Instruction* instr) { | |
163 Instruction* previous = _current_instruction; | |
164 _current_instruction = instr; | |
165 return previous; | |
166 } | |
167 | |
168 #ifndef PRODUCT | |
169 void maybe_print_current_instruction(); | |
170 #endif // PRODUCT | |
171 | |
172 // error handling | |
173 void bailout(const char* msg); | |
174 bool bailed_out() const { return _bailout_msg != NULL; } | |
175 const char* bailout_msg() const { return _bailout_msg; } | |
176 | |
1584 | 177 static int desired_max_code_buffer_size() { |
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178 #ifndef PPC |
1584 | 179 return (int) NMethodSizeLimit; // default 256K or 512K |
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180 #else |
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181 // conditional branches on PPC are restricted to 16 bit signed |
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182 return MAX2((unsigned int)NMethodSizeLimit,32*K); |
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183 #endif |
1584 | 184 } |
185 static int desired_max_constant_size() { | |
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186 #ifndef PPC |
1584 | 187 return (int) NMethodSizeLimit / 10; // about 25K |
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188 #else |
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189 return (MAX2((unsigned int)NMethodSizeLimit, 32*K)) / 10; |
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190 #endif |
1584 | 191 } |
192 | |
193 static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); | |
194 | |
0 | 195 // timers |
196 static void print_timers(); | |
197 | |
198 #ifndef PRODUCT | |
199 // debugging support. | |
200 // produces a file named c1compileonly in the current directory with | |
201 // directives to compile only the current method and it's inlines. | |
202 // The file can be passed to the command line option -XX:Flags=<filename> | |
203 void compile_only_this_method(); | |
204 void compile_only_this_scope(outputStream* st, IRScope* scope); | |
205 void exclude_this_method(); | |
206 #endif // PRODUCT | |
1783 | 207 |
208 bool is_profiling() { | |
209 return env()->comp_level() == CompLevel_full_profile || | |
210 env()->comp_level() == CompLevel_limited_profile; | |
211 } | |
212 bool count_invocations() { return is_profiling(); } | |
213 bool count_backedges() { return is_profiling(); } | |
214 | |
215 // Helpers for generation of profile information | |
216 bool profile_branches() { | |
217 return env()->comp_level() == CompLevel_full_profile && | |
218 C1UpdateMethodData && C1ProfileBranches; | |
219 } | |
220 bool profile_calls() { | |
221 return env()->comp_level() == CompLevel_full_profile && | |
222 C1UpdateMethodData && C1ProfileCalls; | |
223 } | |
224 bool profile_inlined_calls() { | |
225 return profile_calls() && C1ProfileInlinedCalls; | |
226 } | |
227 bool profile_checkcasts() { | |
228 return env()->comp_level() == CompLevel_full_profile && | |
229 C1UpdateMethodData && C1ProfileCheckcasts; | |
230 } | |
0 | 231 }; |
232 | |
233 | |
234 // Macro definitions for unified bailout-support | |
235 // The methods bailout() and bailed_out() are present in all classes | |
236 // that might bailout, but forward all calls to Compilation | |
237 #define BAILOUT(msg) { bailout(msg); return; } | |
238 #define BAILOUT_(msg, res) { bailout(msg); return res; } | |
239 | |
240 #define CHECK_BAILOUT() { if (bailed_out()) return; } | |
241 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } | |
242 | |
243 | |
244 class InstructionMark: public StackObj { | |
245 private: | |
246 Compilation* _compilation; | |
247 Instruction* _previous; | |
248 | |
249 public: | |
250 InstructionMark(Compilation* compilation, Instruction* instr) { | |
251 _compilation = compilation; | |
252 _previous = _compilation->set_current_instruction(instr); | |
253 } | |
254 ~InstructionMark() { | |
255 _compilation->set_current_instruction(_previous); | |
256 } | |
257 }; | |
258 | |
259 | |
260 //---------------------------------------------------------------------- | |
261 // Base class for objects allocated by the compiler in the compilation arena | |
262 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { | |
263 public: | |
1584 | 264 void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } |
265 void* operator new(size_t size, Arena* arena) { | |
266 return arena->Amalloc(size); | |
267 } | |
0 | 268 void operator delete(void* p) {} // nothing to do |
269 }; | |
270 | |
271 | |
272 //---------------------------------------------------------------------- | |
273 // Class for aggregating exception handler information. | |
274 | |
275 // Effectively extends XHandlers class with PC offset of | |
276 // potentially exception-throwing instruction. | |
277 // This class is used at the end of the compilation to build the | |
278 // ExceptionHandlerTable. | |
279 class ExceptionInfo: public CompilationResourceObj { | |
280 private: | |
281 int _pco; // PC of potentially exception-throwing instruction | |
282 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC | |
283 | |
284 public: | |
285 ExceptionInfo(int pco, XHandlers* exception_handlers) | |
286 : _pco(pco) | |
287 , _exception_handlers(exception_handlers) | |
288 { } | |
289 | |
290 int pco() { return _pco; } | |
291 XHandlers* exception_handlers() { return _exception_handlers; } | |
292 }; |