Mercurial > hg > truffle
annotate src/share/vm/c1/c1_Compilation.hpp @ 7666:31540ca73e81
Remove ControlFlowException in SimpleLanguage.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 01 Feb 2013 19:53:52 +0100 |
parents | d804e148cff8 |
children | 46f6f063b272 |
rev | line source |
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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" | |
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; | |
6843 | 69 CompileLog* _log; |
0 | 70 ciMethod* _method; |
71 int _osr_bci; | |
72 IR* _hir; | |
73 int _max_spills; | |
74 FrameMap* _frame_map; | |
75 C1_MacroAssembler* _masm; | |
76 bool _has_exception_handlers; | |
77 bool _has_fpu_code; | |
78 bool _has_unsafe_access; | |
1783 | 79 bool _would_profile; |
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80 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
0 | 81 const char* _bailout_msg; |
82 ExceptionInfoList* _exception_info_list; | |
83 ExceptionHandlerTable _exception_handler_table; | |
84 ImplicitExceptionTable _implicit_exception_table; | |
85 LinearScan* _allocator; | |
86 CodeOffsets _offsets; | |
87 CodeBuffer _code; | |
88 | |
89 // compilation helpers | |
90 void initialize(); | |
91 void build_hir(); | |
92 void emit_lir(); | |
93 | |
94 void emit_code_epilog(LIR_Assembler* assembler); | |
95 int emit_code_body(); | |
96 | |
97 int compile_java_method(); | |
98 void install_code(int frame_size); | |
99 void compile_method(); | |
100 | |
101 void generate_exception_handler_table(); | |
102 | |
103 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } | |
104 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } | |
105 | |
106 LinearScan* allocator() { return _allocator; } | |
107 void set_allocator(LinearScan* allocator) { _allocator = allocator; } | |
108 | |
109 Instruction* _current_instruction; // the instruction currently being processed | |
110 #ifndef PRODUCT | |
111 Instruction* _last_instruction_printed; // the last instruction printed during traversal | |
112 #endif // PRODUCT | |
113 | |
114 public: | |
115 // creation | |
1584 | 116 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
117 int osr_bci, BufferBlob* buffer_blob); | |
0 | 118 ~Compilation(); |
119 | |
1584 | 120 |
121 static Compilation* current() { | |
122 return (Compilation*) ciEnv::current()->compiler_data(); | |
123 } | |
0 | 124 |
125 // accessors | |
126 ciEnv* env() const { return _env; } | |
6843 | 127 CompileLog* log() const { return _log; } |
0 | 128 AbstractCompiler* compiler() const { return _compiler; } |
129 bool has_exception_handlers() const { return _has_exception_handlers; } | |
130 bool has_fpu_code() const { return _has_fpu_code; } | |
131 bool has_unsafe_access() const { return _has_unsafe_access; } | |
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132 int max_vector_size() const { return 0; } |
0 | 133 ciMethod* method() const { return _method; } |
134 int osr_bci() const { return _osr_bci; } | |
135 bool is_osr_compile() const { return osr_bci() >= 0; } | |
136 IR* hir() const { return _hir; } | |
137 int max_spills() const { return _max_spills; } | |
138 FrameMap* frame_map() const { return _frame_map; } | |
139 CodeBuffer* code() { return &_code; } | |
140 C1_MacroAssembler* masm() const { return _masm; } | |
141 CodeOffsets* offsets() { return &_offsets; } | |
1584 | 142 Arena* arena() { return _arena; } |
143 | |
144 // Instruction ids | |
145 int get_next_id() { return _next_id++; } | |
146 int number_of_instructions() const { return _next_id; } | |
147 | |
148 // BlockBegin ids | |
149 int get_next_block_id() { return _next_block_id++; } | |
150 int number_of_blocks() const { return _next_block_id; } | |
0 | 151 |
152 // setters | |
153 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } | |
154 void set_has_fpu_code(bool f) { _has_fpu_code = f; } | |
155 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } | |
1783 | 156 void set_would_profile(bool f) { _would_profile = f; } |
0 | 157 // Add a set of exception handlers covering the given PC offset |
158 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); | |
159 // Statistics gathering | |
160 void notice_inlined_method(ciMethod* method); | |
161 | |
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162 // JSR 292 |
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163 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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164 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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165 |
0 | 166 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
167 Dependencies* dependency_recorder() const; // = _env->dependencies() | |
168 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } | |
169 | |
170 Instruction* current_instruction() const { return _current_instruction; } | |
171 Instruction* set_current_instruction(Instruction* instr) { | |
172 Instruction* previous = _current_instruction; | |
173 _current_instruction = instr; | |
174 return previous; | |
175 } | |
176 | |
177 #ifndef PRODUCT | |
178 void maybe_print_current_instruction(); | |
179 #endif // PRODUCT | |
180 | |
181 // error handling | |
182 void bailout(const char* msg); | |
183 bool bailed_out() const { return _bailout_msg != NULL; } | |
184 const char* bailout_msg() const { return _bailout_msg; } | |
185 | |
1584 | 186 static int desired_max_code_buffer_size() { |
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187 #ifndef PPC |
1584 | 188 return (int) NMethodSizeLimit; // default 256K or 512K |
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189 #else |
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190 // conditional branches on PPC are restricted to 16 bit signed |
1899 | 191 return MIN2((unsigned int)NMethodSizeLimit,32*K); |
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192 #endif |
1584 | 193 } |
194 static int desired_max_constant_size() { | |
1899 | 195 return desired_max_code_buffer_size() / 10; |
1584 | 196 } |
197 | |
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198 static bool setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
1584 | 199 |
0 | 200 // timers |
201 static void print_timers(); | |
202 | |
203 #ifndef PRODUCT | |
204 // debugging support. | |
205 // produces a file named c1compileonly in the current directory with | |
206 // directives to compile only the current method and it's inlines. | |
207 // The file can be passed to the command line option -XX:Flags=<filename> | |
208 void compile_only_this_method(); | |
209 void compile_only_this_scope(outputStream* st, IRScope* scope); | |
210 void exclude_this_method(); | |
211 #endif // PRODUCT | |
1783 | 212 |
213 bool is_profiling() { | |
214 return env()->comp_level() == CompLevel_full_profile || | |
215 env()->comp_level() == CompLevel_limited_profile; | |
216 } | |
217 bool count_invocations() { return is_profiling(); } | |
218 bool count_backedges() { return is_profiling(); } | |
219 | |
220 // Helpers for generation of profile information | |
221 bool profile_branches() { | |
222 return env()->comp_level() == CompLevel_full_profile && | |
223 C1UpdateMethodData && C1ProfileBranches; | |
224 } | |
225 bool profile_calls() { | |
226 return env()->comp_level() == CompLevel_full_profile && | |
227 C1UpdateMethodData && C1ProfileCalls; | |
228 } | |
229 bool profile_inlined_calls() { | |
230 return profile_calls() && C1ProfileInlinedCalls; | |
231 } | |
232 bool profile_checkcasts() { | |
233 return env()->comp_level() == CompLevel_full_profile && | |
234 C1UpdateMethodData && C1ProfileCheckcasts; | |
235 } | |
0 | 236 }; |
237 | |
238 | |
239 // Macro definitions for unified bailout-support | |
240 // The methods bailout() and bailed_out() are present in all classes | |
241 // that might bailout, but forward all calls to Compilation | |
242 #define BAILOUT(msg) { bailout(msg); return; } | |
243 #define BAILOUT_(msg, res) { bailout(msg); return res; } | |
244 | |
245 #define CHECK_BAILOUT() { if (bailed_out()) return; } | |
246 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } | |
247 | |
248 | |
249 class InstructionMark: public StackObj { | |
250 private: | |
251 Compilation* _compilation; | |
252 Instruction* _previous; | |
253 | |
254 public: | |
255 InstructionMark(Compilation* compilation, Instruction* instr) { | |
256 _compilation = compilation; | |
257 _previous = _compilation->set_current_instruction(instr); | |
258 } | |
259 ~InstructionMark() { | |
260 _compilation->set_current_instruction(_previous); | |
261 } | |
262 }; | |
263 | |
264 | |
265 //---------------------------------------------------------------------- | |
266 // Base class for objects allocated by the compiler in the compilation arena | |
267 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { | |
268 public: | |
1584 | 269 void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } |
270 void* operator new(size_t size, Arena* arena) { | |
271 return arena->Amalloc(size); | |
272 } | |
0 | 273 void operator delete(void* p) {} // nothing to do |
274 }; | |
275 | |
276 | |
277 //---------------------------------------------------------------------- | |
278 // Class for aggregating exception handler information. | |
279 | |
280 // Effectively extends XHandlers class with PC offset of | |
281 // potentially exception-throwing instruction. | |
282 // This class is used at the end of the compilation to build the | |
283 // ExceptionHandlerTable. | |
284 class ExceptionInfo: public CompilationResourceObj { | |
285 private: | |
286 int _pco; // PC of potentially exception-throwing instruction | |
287 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC | |
288 | |
289 public: | |
290 ExceptionInfo(int pco, XHandlers* exception_handlers) | |
291 : _pco(pco) | |
292 , _exception_handlers(exception_handlers) | |
293 { } | |
294 | |
295 int pco() { return _pco; } | |
296 XHandlers* exception_handlers() { return _exception_handlers; } | |
297 }; | |
1972 | 298 |
299 #endif // SHARE_VM_C1_C1_COMPILATION_HPP |