Mercurial > hg > graal-compiler
annotate src/share/vm/opto/compile.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 | ff55877839bc |
children | 6f3fd5150b67 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 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_OPTO_COMPILE_HPP |
26 #define SHARE_VM_OPTO_COMPILE_HPP | |
27 | |
28 #include "asm/codeBuffer.hpp" | |
29 #include "ci/compilerInterface.hpp" | |
30 #include "code/debugInfoRec.hpp" | |
31 #include "code/exceptionHandlerTable.hpp" | |
32 #include "compiler/compilerOracle.hpp" | |
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33 #include "compiler/compileBroker.hpp" |
1972 | 34 #include "libadt/dict.hpp" |
35 #include "libadt/port.hpp" | |
36 #include "libadt/vectset.hpp" | |
37 #include "memory/resourceArea.hpp" | |
38 #include "opto/idealGraphPrinter.hpp" | |
39 #include "opto/phase.hpp" | |
40 #include "opto/regmask.hpp" | |
41 #include "runtime/deoptimization.hpp" | |
42 #include "runtime/vmThread.hpp" | |
43 | |
0 | 44 class Block; |
45 class Bundle; | |
46 class C2Compiler; | |
47 class CallGenerator; | |
48 class ConnectionGraph; | |
49 class InlineTree; | |
50 class Int_Array; | |
51 class Matcher; | |
2008 | 52 class MachConstantNode; |
53 class MachConstantBaseNode; | |
0 | 54 class MachNode; |
2008 | 55 class MachOper; |
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56 class MachSafePointNode; |
0 | 57 class Node; |
58 class Node_Array; | |
59 class Node_Notes; | |
60 class OptoReg; | |
61 class PhaseCFG; | |
62 class PhaseGVN; | |
1172 | 63 class PhaseIterGVN; |
0 | 64 class PhaseRegAlloc; |
65 class PhaseCCP; | |
66 class PhaseCCP_DCE; | |
67 class RootNode; | |
68 class relocInfo; | |
69 class Scope; | |
70 class StartNode; | |
71 class SafePointNode; | |
72 class JVMState; | |
73 class TypeData; | |
74 class TypePtr; | |
7478 | 75 class TypeOopPtr; |
0 | 76 class TypeFunc; |
77 class Unique_Node_List; | |
78 class nmethod; | |
79 class WarmCallInfo; | |
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80 class Node_Stack; |
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81 struct Final_Reshape_Counts; |
0 | 82 |
83 //------------------------------Compile---------------------------------------- | |
84 // This class defines a top-level Compiler invocation. | |
85 | |
86 class Compile : public Phase { | |
3939 | 87 friend class VMStructs; |
88 | |
0 | 89 public: |
90 // Fixed alias indexes. (See also MergeMemNode.) | |
91 enum { | |
92 AliasIdxTop = 1, // pseudo-index, aliases to nothing (used as sentinel value) | |
93 AliasIdxBot = 2, // pseudo-index, aliases to everything | |
94 AliasIdxRaw = 3 // hard-wired index for TypeRawPtr::BOTTOM | |
95 }; | |
96 | |
97 // Variant of TraceTime(NULL, &_t_accumulator, TimeCompiler); | |
98 // Integrated with logging. If logging is turned on, and dolog is true, | |
99 // then brackets are put into the log, with time stamps and node counts. | |
100 // (The time collection itself is always conditionalized on TimeCompiler.) | |
101 class TracePhase : public TraceTime { | |
102 private: | |
103 Compile* C; | |
104 CompileLog* _log; | |
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105 const char* _phase_name; |
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106 bool _dolog; |
0 | 107 public: |
108 TracePhase(const char* name, elapsedTimer* accumulator, bool dolog); | |
109 ~TracePhase(); | |
110 }; | |
111 | |
112 // Information per category of alias (memory slice) | |
113 class AliasType { | |
114 private: | |
115 friend class Compile; | |
116 | |
117 int _index; // unique index, used with MergeMemNode | |
118 const TypePtr* _adr_type; // normalized address type | |
119 ciField* _field; // relevant instance field, or null if none | |
120 bool _is_rewritable; // false if the memory is write-once only | |
121 int _general_index; // if this is type is an instance, the general | |
122 // type that this is an instance of | |
123 | |
124 void Init(int i, const TypePtr* at); | |
125 | |
126 public: | |
127 int index() const { return _index; } | |
128 const TypePtr* adr_type() const { return _adr_type; } | |
129 ciField* field() const { return _field; } | |
130 bool is_rewritable() const { return _is_rewritable; } | |
131 bool is_volatile() const { return (_field ? _field->is_volatile() : false); } | |
132 int general_index() const { return (_general_index != 0) ? _general_index : _index; } | |
133 | |
134 void set_rewritable(bool z) { _is_rewritable = z; } | |
135 void set_field(ciField* f) { | |
136 assert(!_field,""); | |
137 _field = f; | |
138 if (f->is_final()) _is_rewritable = false; | |
139 } | |
140 | |
141 void print_on(outputStream* st) PRODUCT_RETURN; | |
142 }; | |
143 | |
144 enum { | |
145 logAliasCacheSize = 6, | |
146 AliasCacheSize = (1<<logAliasCacheSize) | |
147 }; | |
148 struct AliasCacheEntry { const TypePtr* _adr_type; int _index; }; // simple duple type | |
149 enum { | |
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150 trapHistLength = MethodData::_trap_hist_limit |
0 | 151 }; |
152 | |
2008 | 153 // Constant entry of the constant table. |
154 class Constant { | |
155 private: | |
156 BasicType _type; | |
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157 union { |
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158 jvalue _value; |
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159 Metadata* _metadata; |
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160 } _v; |
2008 | 161 int _offset; // offset of this constant (in bytes) relative to the constant table base. |
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162 float _freq; |
2008 | 163 bool _can_be_reused; // true (default) if the value can be shared with other users. |
164 | |
165 public: | |
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166 Constant() : _type(T_ILLEGAL), _offset(-1), _freq(0.0f), _can_be_reused(true) { _v._value.l = 0; } |
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167 Constant(BasicType type, jvalue value, float freq = 0.0f, bool can_be_reused = true) : |
2008 | 168 _type(type), |
169 _offset(-1), | |
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170 _freq(freq), |
2008 | 171 _can_be_reused(can_be_reused) |
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172 { |
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173 assert(type != T_METADATA, "wrong constructor"); |
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174 _v._value = value; |
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175 } |
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176 Constant(Metadata* metadata, bool can_be_reused = true) : |
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177 _type(T_METADATA), |
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178 _offset(-1), |
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179 _freq(0.0f), |
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180 _can_be_reused(can_be_reused) |
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181 { |
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182 _v._metadata = metadata; |
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183 } |
2008 | 184 |
185 bool operator==(const Constant& other); | |
186 | |
187 BasicType type() const { return _type; } | |
188 | |
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189 jlong get_jlong() const { return _v._value.j; } |
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190 jfloat get_jfloat() const { return _v._value.f; } |
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191 jdouble get_jdouble() const { return _v._value.d; } |
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192 jobject get_jobject() const { return _v._value.l; } |
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193 |
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194 Metadata* get_metadata() const { return _v._metadata; } |
2008 | 195 |
196 int offset() const { return _offset; } | |
197 void set_offset(int offset) { _offset = offset; } | |
198 | |
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199 float freq() const { return _freq; } |
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200 void inc_freq(float freq) { _freq += freq; } |
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201 |
2008 | 202 bool can_be_reused() const { return _can_be_reused; } |
203 }; | |
204 | |
205 // Constant table. | |
206 class ConstantTable { | |
207 private: | |
208 GrowableArray<Constant> _constants; // Constants of this table. | |
209 int _size; // Size in bytes the emitted constant table takes (including padding). | |
210 int _table_base_offset; // Offset of the table base that gets added to the constant offsets. | |
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211 int _nof_jump_tables; // Number of jump-tables in this constant table. |
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212 |
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213 static int qsort_comparator(Constant* a, Constant* b); |
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214 |
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215 // We use negative frequencies to keep the order of the |
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216 // jump-tables in which they were added. Otherwise we get into |
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217 // trouble with relocation. |
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218 float next_jump_table_freq() { return -1.0f * (++_nof_jump_tables); } |
2008 | 219 |
220 public: | |
221 ConstantTable() : | |
222 _size(-1), | |
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223 _table_base_offset(-1), // We can use -1 here since the constant table is always bigger than 2 bytes (-(size / 2), see MachConstantBaseNode::emit). |
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224 _nof_jump_tables(0) |
2008 | 225 {} |
226 | |
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227 int size() const { assert(_size != -1, "not calculated yet"); return _size; } |
2008 | 228 |
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229 int calculate_table_base_offset() const; // AD specific |
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230 void set_table_base_offset(int x) { assert(_table_base_offset == -1 || x == _table_base_offset, "can't change"); _table_base_offset = x; } |
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231 int table_base_offset() const { assert(_table_base_offset != -1, "not set yet"); return _table_base_offset; } |
2008 | 232 |
233 void emit(CodeBuffer& cb); | |
234 | |
235 // Returns the offset of the last entry (the top) of the constant table. | |
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236 int top_offset() const { assert(_constants.top().offset() != -1, "not bound yet"); return _constants.top().offset(); } |
2008 | 237 |
238 void calculate_offsets_and_size(); | |
239 int find_offset(Constant& con) const; | |
240 | |
241 void add(Constant& con); | |
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242 Constant add(MachConstantNode* n, BasicType type, jvalue value); |
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243 Constant add(Metadata* metadata); |
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244 Constant add(MachConstantNode* n, MachOper* oper); |
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245 Constant add(MachConstantNode* n, jfloat f) { |
2008 | 246 jvalue value; value.f = f; |
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247 return add(n, T_FLOAT, value); |
2008 | 248 } |
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249 Constant add(MachConstantNode* n, jdouble d) { |
2008 | 250 jvalue value; value.d = d; |
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251 return add(n, T_DOUBLE, value); |
2008 | 252 } |
253 | |
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254 // Jump-table |
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255 Constant add_jump_table(MachConstantNode* n); |
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256 void fill_jump_table(CodeBuffer& cb, MachConstantNode* n, GrowableArray<Label*> labels) const; |
2008 | 257 }; |
258 | |
0 | 259 private: |
260 // Fixed parameters to this compilation. | |
261 const int _compile_id; | |
262 const bool _save_argument_registers; // save/restore arg regs for trampolines | |
263 const bool _subsume_loads; // Load can be matched as part of a larger op. | |
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264 const bool _do_escape_analysis; // Do escape analysis. |
0 | 265 ciMethod* _method; // The method being compiled. |
266 int _entry_bci; // entry bci for osr methods. | |
267 const TypeFunc* _tf; // My kind of signature | |
268 InlineTree* _ilt; // Ditto (temporary). | |
269 address _stub_function; // VM entry for stub being compiled, or NULL | |
270 const char* _stub_name; // Name of stub or adapter being compiled, or NULL | |
271 address _stub_entry_point; // Compile code entry for generated stub, or NULL | |
272 | |
273 // Control of this compilation. | |
274 int _num_loop_opts; // Number of iterations for doing loop optimiztions | |
275 int _max_inline_size; // Max inline size for this compilation | |
276 int _freq_inline_size; // Max hot method inline size for this compilation | |
277 int _fixed_slots; // count of frame slots not allocated by the register | |
278 // allocator i.e. locks, original deopt pc, etc. | |
279 // For deopt | |
280 int _orig_pc_slot; | |
281 int _orig_pc_slot_offset_in_bytes; | |
282 | |
283 int _major_progress; // Count of something big happening | |
7473 | 284 bool _inlining_progress; // progress doing incremental inlining? |
285 bool _inlining_incrementally;// Are we doing incremental inlining (post parse) | |
0 | 286 bool _has_loops; // True if the method _may_ have some loops |
287 bool _has_split_ifs; // True if the method _may_ have some split-if | |
288 bool _has_unsafe_access; // True if the method _may_ produce faults in unsafe loads or stores. | |
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289 bool _has_stringbuilder; // True StringBuffers or StringBuilders are allocated |
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290 int _max_vector_size; // Maximum size of generated vectors |
0 | 291 uint _trap_hist[trapHistLength]; // Cumulative traps |
292 bool _trap_can_recompile; // Have we emitted a recompiling trap? | |
293 uint _decompile_count; // Cumulative decompilation counts. | |
294 bool _do_inlining; // True if we intend to do inlining | |
295 bool _do_scheduling; // True if we intend to do scheduling | |
418 | 296 bool _do_freq_based_layout; // True if we intend to do frequency based block layout |
0 | 297 bool _do_count_invocations; // True if we generate code to count invocations |
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298 bool _do_method_data_update; // True if we generate code to update MethodData*s |
0 | 299 int _AliasLevel; // Locally-adjusted version of AliasLevel flag. |
300 bool _print_assembly; // True if we should dump assembly code for this compilation | |
301 #ifndef PRODUCT | |
302 bool _trace_opto_output; | |
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303 bool _parsed_irreducible_loop; // True if ciTypeFlow detected irreducible loops during parsing |
0 | 304 #endif |
305 | |
1265 | 306 // JSR 292 |
307 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. | |
308 | |
0 | 309 // Compilation environment. |
310 Arena _comp_arena; // Arena with lifetime equivalent to Compile | |
311 ciEnv* _env; // CI interface | |
312 CompileLog* _log; // from CompilerThread | |
313 const char* _failure_reason; // for record_failure/failing pattern | |
314 GrowableArray<CallGenerator*>* _intrinsics; // List of intrinsics. | |
315 GrowableArray<Node*>* _macro_nodes; // List of nodes which need to be expanded before matching. | |
1172 | 316 GrowableArray<Node*>* _predicate_opaqs; // List of Opaque1 nodes for the loop predicates. |
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317 GrowableArray<Node*>* _expensive_nodes; // List of nodes that are expensive to compute and that we'd better not let the GVN freely common |
0 | 318 ConnectionGraph* _congraph; |
319 #ifndef PRODUCT | |
320 IdealGraphPrinter* _printer; | |
321 #endif | |
322 | |
323 // Node management | |
324 uint _unique; // Counter for unique Node indices | |
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325 VectorSet _dead_node_list; // Set of dead nodes |
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326 uint _dead_node_count; // Number of dead nodes; VectorSet::Size() is O(N). |
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327 // So use this to keep count and make the call O(1). |
0 | 328 debug_only(static int _debug_idx;) // Monotonic counter (not reset), use -XX:BreakAtNode=<idx> |
329 Arena _node_arena; // Arena for new-space Nodes | |
330 Arena _old_arena; // Arena for old-space Nodes, lifetime during xform | |
331 RootNode* _root; // Unique root of compilation, or NULL after bail-out. | |
332 Node* _top; // Unique top node. (Reset by various phases.) | |
333 | |
334 Node* _immutable_memory; // Initial memory state | |
335 | |
336 Node* _recent_alloc_obj; | |
337 Node* _recent_alloc_ctl; | |
338 | |
2008 | 339 // Constant table |
340 ConstantTable _constant_table; // The constant table for this compile. | |
341 MachConstantBaseNode* _mach_constant_base_node; // Constant table base node singleton. | |
342 | |
343 | |
0 | 344 // Blocked array of debugging and profiling information, |
345 // tracked per node. | |
346 enum { _log2_node_notes_block_size = 8, | |
347 _node_notes_block_size = (1<<_log2_node_notes_block_size) | |
348 }; | |
349 GrowableArray<Node_Notes*>* _node_note_array; | |
350 Node_Notes* _default_node_notes; // default notes for new nodes | |
351 | |
352 // After parsing and every bulk phase we hang onto the Root instruction. | |
353 // The RootNode instruction is where the whole program begins. It produces | |
354 // the initial Control and BOTTOM for everybody else. | |
355 | |
356 // Type management | |
357 Arena _Compile_types; // Arena for all types | |
358 Arena* _type_arena; // Alias for _Compile_types except in Initialize_shared() | |
359 Dict* _type_dict; // Intern table | |
360 void* _type_hwm; // Last allocation (see Type::operator new/delete) | |
361 size_t _type_last_size; // Last allocation size (see Type::operator new/delete) | |
362 ciMethod* _last_tf_m; // Cache for | |
363 const TypeFunc* _last_tf; // TypeFunc::make | |
364 AliasType** _alias_types; // List of alias types seen so far. | |
365 int _num_alias_types; // Logical length of _alias_types | |
366 int _max_alias_types; // Physical length of _alias_types | |
367 AliasCacheEntry _alias_cache[AliasCacheSize]; // Gets aliases w/o data structure walking | |
368 | |
369 // Parsing, optimization | |
370 PhaseGVN* _initial_gvn; // Results of parse-time PhaseGVN | |
371 Unique_Node_List* _for_igvn; // Initial work-list for next round of Iterative GVN | |
372 WarmCallInfo* _warm_calls; // Sorted work-list for heat-based inlining. | |
373 | |
7473 | 374 GrowableArray<CallGenerator*> _late_inlines; // List of CallGenerators to be revisited after |
375 // main parsing has finished. | |
376 GrowableArray<CallGenerator*> _string_late_inlines; // same but for string operations | |
377 | |
378 int _late_inlines_pos; // Where in the queue should the next late inlining candidate go (emulate depth first inlining) | |
379 uint _number_of_mh_late_inlines; // number of method handle late inlining still pending | |
380 | |
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381 |
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382 // Inlining may not happen in parse order which would make |
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383 // PrintInlining output confusing. Keep track of PrintInlining |
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384 // pieces in order. |
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385 class PrintInliningBuffer : public ResourceObj { |
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386 private: |
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387 CallGenerator* _cg; |
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388 stringStream* _ss; |
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389 |
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390 public: |
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391 PrintInliningBuffer() |
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392 : _cg(NULL) { _ss = new stringStream(); } |
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393 |
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394 stringStream* ss() const { return _ss; } |
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395 CallGenerator* cg() const { return _cg; } |
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396 void set_cg(CallGenerator* cg) { _cg = cg; } |
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397 }; |
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398 |
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399 GrowableArray<PrintInliningBuffer>* _print_inlining_list; |
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400 int _print_inlining; |
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401 |
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402 // Only keep nodes in the expensive node list that need to be optimized |
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403 void cleanup_expensive_nodes(PhaseIterGVN &igvn); |
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404 // Use for sorting expensive nodes to bring similar nodes together |
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405 static int cmp_expensive_nodes(Node** n1, Node** n2); |
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406 // Expensive nodes list already sorted? |
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407 bool expensive_nodes_sorted() const; |
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408 |
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409 public: |
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410 |
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411 outputStream* print_inlining_stream() const { |
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412 return _print_inlining_list->at(_print_inlining).ss(); |
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413 } |
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414 |
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415 void print_inlining_skip(CallGenerator* cg) { |
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416 if (PrintInlining) { |
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417 _print_inlining_list->at(_print_inlining).set_cg(cg); |
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418 _print_inlining++; |
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419 _print_inlining_list->insert_before(_print_inlining, PrintInliningBuffer()); |
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420 } |
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421 } |
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422 |
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423 void print_inlining_insert(CallGenerator* cg) { |
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424 if (PrintInlining) { |
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425 for (int i = 0; i < _print_inlining_list->length(); i++) { |
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426 if (_print_inlining_list->at(i).cg() == cg) { |
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427 _print_inlining_list->insert_before(i+1, PrintInliningBuffer()); |
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428 _print_inlining = i+1; |
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429 _print_inlining_list->at(i).set_cg(NULL); |
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430 return; |
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431 } |
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432 } |
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433 ShouldNotReachHere(); |
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434 } |
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435 } |
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436 |
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437 void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { |
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438 stringStream ss; |
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439 CompileTask::print_inlining(&ss, method, inline_level, bci, msg); |
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440 print_inlining_stream()->print(ss.as_string()); |
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441 } |
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442 |
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443 private: |
0 | 444 // Matching, CFG layout, allocation, code generation |
445 PhaseCFG* _cfg; // Results of CFG finding | |
446 bool _select_24_bit_instr; // We selected an instruction with a 24-bit result | |
447 bool _in_24_bit_fp_mode; // We are emitting instructions with 24-bit results | |
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448 int _java_calls; // Number of java calls in the method |
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449 int _inner_loops; // Number of inner loops in the method |
0 | 450 Matcher* _matcher; // Engine to map ideal to machine instructions |
451 PhaseRegAlloc* _regalloc; // Results of register allocation. | |
452 int _frame_slots; // Size of total frame in stack slots | |
453 CodeOffsets _code_offsets; // Offsets into the code for various interesting entries | |
454 RegMask _FIRST_STACK_mask; // All stack slots usable for spills (depends on frame layout) | |
455 Arena* _indexSet_arena; // control IndexSet allocation within PhaseChaitin | |
456 void* _indexSet_free_block_list; // free list of IndexSet bit blocks | |
457 | |
458 uint _node_bundling_limit; | |
459 Bundle* _node_bundling_base; // Information for instruction bundling | |
460 | |
461 // Instruction bits passed off to the VM | |
462 int _method_size; // Size of nmethod code segment in bytes | |
463 CodeBuffer _code_buffer; // Where the code is assembled | |
464 int _first_block_size; // Size of unvalidated entry point code / OSR poison code | |
465 ExceptionHandlerTable _handler_table; // Table of native-code exception handlers | |
466 ImplicitExceptionTable _inc_table; // Table of implicit null checks in native code | |
467 OopMapSet* _oop_map_set; // Table of oop maps (one for each safepoint location) | |
468 static int _CompiledZap_count; // counter compared against CompileZap[First/Last] | |
469 BufferBlob* _scratch_buffer_blob; // For temporary code buffers. | |
470 relocInfo* _scratch_locs_memory; // For temporary code buffers. | |
2008 | 471 int _scratch_const_size; // For temporary code buffers. |
472 bool _in_scratch_emit_size; // true when in scratch_emit_size. | |
0 | 473 |
474 public: | |
475 // Accessors | |
476 | |
477 // The Compile instance currently active in this (compiler) thread. | |
478 static Compile* current() { | |
479 return (Compile*) ciEnv::current()->compiler_data(); | |
480 } | |
481 | |
482 // ID for this compilation. Useful for setting breakpoints in the debugger. | |
483 int compile_id() const { return _compile_id; } | |
484 | |
485 // Does this compilation allow instructions to subsume loads? User | |
486 // instructions that subsume a load may result in an unschedulable | |
487 // instruction sequence. | |
488 bool subsume_loads() const { return _subsume_loads; } | |
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489 // Do escape analysis. |
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490 bool do_escape_analysis() const { return _do_escape_analysis; } |
0 | 491 bool save_argument_registers() const { return _save_argument_registers; } |
492 | |
493 | |
494 // Other fixed compilation parameters. | |
495 ciMethod* method() const { return _method; } | |
496 int entry_bci() const { return _entry_bci; } | |
497 bool is_osr_compilation() const { return _entry_bci != InvocationEntryBci; } | |
498 bool is_method_compilation() const { return (_method != NULL && !_method->flags().is_native()); } | |
499 const TypeFunc* tf() const { assert(_tf!=NULL, ""); return _tf; } | |
500 void init_tf(const TypeFunc* tf) { assert(_tf==NULL, ""); _tf = tf; } | |
501 InlineTree* ilt() const { return _ilt; } | |
502 address stub_function() const { return _stub_function; } | |
503 const char* stub_name() const { return _stub_name; } | |
504 address stub_entry_point() const { return _stub_entry_point; } | |
505 | |
506 // Control of this compilation. | |
507 int fixed_slots() const { assert(_fixed_slots >= 0, ""); return _fixed_slots; } | |
508 void set_fixed_slots(int n) { _fixed_slots = n; } | |
509 int major_progress() const { return _major_progress; } | |
7473 | 510 void set_inlining_progress(bool z) { _inlining_progress = z; } |
511 int inlining_progress() const { return _inlining_progress; } | |
512 void set_inlining_incrementally(bool z) { _inlining_incrementally = z; } | |
513 int inlining_incrementally() const { return _inlining_incrementally; } | |
0 | 514 void set_major_progress() { _major_progress++; } |
515 void clear_major_progress() { _major_progress = 0; } | |
516 int num_loop_opts() const { return _num_loop_opts; } | |
517 void set_num_loop_opts(int n) { _num_loop_opts = n; } | |
518 int max_inline_size() const { return _max_inline_size; } | |
519 void set_freq_inline_size(int n) { _freq_inline_size = n; } | |
520 int freq_inline_size() const { return _freq_inline_size; } | |
521 void set_max_inline_size(int n) { _max_inline_size = n; } | |
522 bool has_loops() const { return _has_loops; } | |
523 void set_has_loops(bool z) { _has_loops = z; } | |
524 bool has_split_ifs() const { return _has_split_ifs; } | |
525 void set_has_split_ifs(bool z) { _has_split_ifs = z; } | |
526 bool has_unsafe_access() const { return _has_unsafe_access; } | |
527 void set_has_unsafe_access(bool z) { _has_unsafe_access = z; } | |
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528 bool has_stringbuilder() const { return _has_stringbuilder; } |
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529 void set_has_stringbuilder(bool z) { _has_stringbuilder = z; } |
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530 int max_vector_size() const { return _max_vector_size; } |
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531 void set_max_vector_size(int s) { _max_vector_size = s; } |
0 | 532 void set_trap_count(uint r, uint c) { assert(r < trapHistLength, "oob"); _trap_hist[r] = c; } |
533 uint trap_count(uint r) const { assert(r < trapHistLength, "oob"); return _trap_hist[r]; } | |
534 bool trap_can_recompile() const { return _trap_can_recompile; } | |
535 void set_trap_can_recompile(bool z) { _trap_can_recompile = z; } | |
536 uint decompile_count() const { return _decompile_count; } | |
537 void set_decompile_count(uint c) { _decompile_count = c; } | |
538 bool allow_range_check_smearing() const; | |
539 bool do_inlining() const { return _do_inlining; } | |
540 void set_do_inlining(bool z) { _do_inlining = z; } | |
541 bool do_scheduling() const { return _do_scheduling; } | |
542 void set_do_scheduling(bool z) { _do_scheduling = z; } | |
418 | 543 bool do_freq_based_layout() const{ return _do_freq_based_layout; } |
544 void set_do_freq_based_layout(bool z){ _do_freq_based_layout = z; } | |
0 | 545 bool do_count_invocations() const{ return _do_count_invocations; } |
546 void set_do_count_invocations(bool z){ _do_count_invocations = z; } | |
547 bool do_method_data_update() const { return _do_method_data_update; } | |
548 void set_do_method_data_update(bool z) { _do_method_data_update = z; } | |
549 int AliasLevel() const { return _AliasLevel; } | |
550 bool print_assembly() const { return _print_assembly; } | |
551 void set_print_assembly(bool z) { _print_assembly = z; } | |
552 // check the CompilerOracle for special behaviours for this compile | |
553 bool method_has_option(const char * option) { | |
554 return method() != NULL && method()->has_option(option); | |
555 } | |
556 #ifndef PRODUCT | |
557 bool trace_opto_output() const { return _trace_opto_output; } | |
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558 bool parsed_irreducible_loop() const { return _parsed_irreducible_loop; } |
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559 void set_parsed_irreducible_loop(bool z) { _parsed_irreducible_loop = z; } |
0 | 560 #endif |
561 | |
1265 | 562 // JSR 292 |
563 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } | |
564 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } | |
565 | |
0 | 566 void begin_method() { |
567 #ifndef PRODUCT | |
568 if (_printer) _printer->begin_method(this); | |
569 #endif | |
570 } | |
571 void print_method(const char * name, int level = 1) { | |
572 #ifndef PRODUCT | |
573 if (_printer) _printer->print_method(this, name, level); | |
574 #endif | |
575 } | |
576 void end_method() { | |
577 #ifndef PRODUCT | |
578 if (_printer) _printer->end_method(); | |
579 #endif | |
580 } | |
581 | |
582 int macro_count() { return _macro_nodes->length(); } | |
1172 | 583 int predicate_count() { return _predicate_opaqs->length();} |
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584 int expensive_count() { return _expensive_nodes->length(); } |
0 | 585 Node* macro_node(int idx) { return _macro_nodes->at(idx); } |
1172 | 586 Node* predicate_opaque1_node(int idx) { return _predicate_opaqs->at(idx);} |
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587 Node* expensive_node(int idx) { return _expensive_nodes->at(idx); } |
0 | 588 ConnectionGraph* congraph() { return _congraph;} |
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589 void set_congraph(ConnectionGraph* congraph) { _congraph = congraph;} |
0 | 590 void add_macro_node(Node * n) { |
591 //assert(n->is_macro(), "must be a macro node"); | |
592 assert(!_macro_nodes->contains(n), " duplicate entry in expand list"); | |
593 _macro_nodes->append(n); | |
594 } | |
595 void remove_macro_node(Node * n) { | |
596 // this function may be called twice for a node so check | |
597 // that the node is in the array before attempting to remove it | |
598 if (_macro_nodes->contains(n)) | |
599 _macro_nodes->remove(n); | |
1172 | 600 // remove from _predicate_opaqs list also if it is there |
601 if (predicate_count() > 0 && _predicate_opaqs->contains(n)){ | |
602 _predicate_opaqs->remove(n); | |
603 } | |
0 | 604 } |
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605 void add_expensive_node(Node * n); |
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606 void remove_expensive_node(Node * n) { |
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607 if (_expensive_nodes->contains(n)) { |
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608 _expensive_nodes->remove(n); |
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609 } |
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610 } |
1172 | 611 void add_predicate_opaq(Node * n) { |
612 assert(!_predicate_opaqs->contains(n), " duplicate entry in predicate opaque1"); | |
613 assert(_macro_nodes->contains(n), "should have already been in macro list"); | |
614 _predicate_opaqs->append(n); | |
615 } | |
616 // remove the opaque nodes that protect the predicates so that the unused checks and | |
617 // uncommon traps will be eliminated from the graph. | |
618 void cleanup_loop_predicates(PhaseIterGVN &igvn); | |
2445 | 619 bool is_predicate_opaq(Node * n) { |
620 return _predicate_opaqs->contains(n); | |
621 } | |
0 | 622 |
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623 // Are there candidate expensive nodes for optimization? |
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624 bool should_optimize_expensive_nodes(PhaseIterGVN &igvn); |
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625 // Check whether n1 and n2 are similar |
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626 static int cmp_expensive_nodes(Node* n1, Node* n2); |
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627 // Sort expensive nodes to locate similar expensive nodes |
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628 void sort_expensive_nodes(); |
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629 |
0 | 630 // Compilation environment. |
631 Arena* comp_arena() { return &_comp_arena; } | |
632 ciEnv* env() const { return _env; } | |
633 CompileLog* log() const { return _log; } | |
634 bool failing() const { return _env->failing() || _failure_reason != NULL; } | |
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635 const char* failure_reason() { return _failure_reason; } |
0 | 636 bool failure_reason_is(const char* r) { return (r==_failure_reason) || (r!=NULL && _failure_reason!=NULL && strcmp(r, _failure_reason)==0); } |
637 | |
638 void record_failure(const char* reason); | |
639 void record_method_not_compilable(const char* reason, bool all_tiers = false) { | |
640 // All bailouts cover "all_tiers" when TieredCompilation is off. | |
641 if (!TieredCompilation) all_tiers = true; | |
642 env()->record_method_not_compilable(reason, all_tiers); | |
643 // Record failure reason. | |
644 record_failure(reason); | |
645 } | |
646 void record_method_not_compilable_all_tiers(const char* reason) { | |
647 record_method_not_compilable(reason, true); | |
648 } | |
649 bool check_node_count(uint margin, const char* reason) { | |
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650 if (live_nodes() + margin > (uint)MaxNodeLimit) { |
0 | 651 record_method_not_compilable(reason); |
652 return true; | |
653 } else { | |
654 return false; | |
655 } | |
656 } | |
657 | |
658 // Node management | |
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659 uint unique() const { return _unique; } |
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660 uint next_unique() { return _unique++; } |
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661 void set_unique(uint i) { _unique = i; } |
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662 static int debug_idx() { return debug_only(_debug_idx)+0; } |
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663 static void set_debug_idx(int i) { debug_only(_debug_idx = i); } |
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664 Arena* node_arena() { return &_node_arena; } |
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665 Arena* old_arena() { return &_old_arena; } |
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666 RootNode* root() const { return _root; } |
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667 void set_root(RootNode* r) { _root = r; } |
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668 StartNode* start() const; // (Derived from root.) |
0 | 669 void init_start(StartNode* s); |
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670 Node* immutable_memory(); |
0 | 671 |
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672 Node* recent_alloc_ctl() const { return _recent_alloc_ctl; } |
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673 Node* recent_alloc_obj() const { return _recent_alloc_obj; } |
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674 void set_recent_alloc(Node* ctl, Node* obj) { |
0 | 675 _recent_alloc_ctl = ctl; |
676 _recent_alloc_obj = obj; | |
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677 } |
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678 void record_dead_node(uint idx) { if (_dead_node_list.test_set(idx)) return; |
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679 _dead_node_count++; |
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680 } |
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681 bool is_dead_node(uint idx) { return _dead_node_list.test(idx) != 0; } |
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682 uint dead_node_count() { return _dead_node_count; } |
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683 void reset_dead_node_list() { _dead_node_list.Reset(); |
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684 _dead_node_count = 0; |
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685 } |
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686 uint live_nodes() const { |
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687 int val = _unique - _dead_node_count; |
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688 assert (val >= 0, err_msg_res("number of tracked dead nodes %d more than created nodes %d", _unique, _dead_node_count)); |
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689 return (uint) val; |
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690 } |
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691 #ifdef ASSERT |
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692 uint count_live_nodes_by_graph_walk(); |
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693 void print_missing_nodes(); |
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694 #endif |
0 | 695 |
2008 | 696 // Constant table |
697 ConstantTable& constant_table() { return _constant_table; } | |
698 | |
699 MachConstantBaseNode* mach_constant_base_node(); | |
700 bool has_mach_constant_base_node() const { return _mach_constant_base_node != NULL; } | |
701 | |
0 | 702 // Handy undefined Node |
703 Node* top() const { return _top; } | |
704 | |
705 // these are used by guys who need to know about creation and transformation of top: | |
706 Node* cached_top_node() { return _top; } | |
707 void set_cached_top_node(Node* tn); | |
708 | |
709 GrowableArray<Node_Notes*>* node_note_array() const { return _node_note_array; } | |
710 void set_node_note_array(GrowableArray<Node_Notes*>* arr) { _node_note_array = arr; } | |
711 Node_Notes* default_node_notes() const { return _default_node_notes; } | |
712 void set_default_node_notes(Node_Notes* n) { _default_node_notes = n; } | |
713 | |
714 Node_Notes* node_notes_at(int idx) { | |
715 return locate_node_notes(_node_note_array, idx, false); | |
716 } | |
717 inline bool set_node_notes_at(int idx, Node_Notes* value); | |
718 | |
719 // Copy notes from source to dest, if they exist. | |
720 // Overwrite dest only if source provides something. | |
721 // Return true if information was moved. | |
722 bool copy_node_notes_to(Node* dest, Node* source); | |
723 | |
724 // Workhorse function to sort out the blocked Node_Notes array: | |
725 inline Node_Notes* locate_node_notes(GrowableArray<Node_Notes*>* arr, | |
726 int idx, bool can_grow = false); | |
727 | |
728 void grow_node_notes(GrowableArray<Node_Notes*>* arr, int grow_by); | |
729 | |
730 // Type management | |
731 Arena* type_arena() { return _type_arena; } | |
732 Dict* type_dict() { return _type_dict; } | |
733 void* type_hwm() { return _type_hwm; } | |
734 size_t type_last_size() { return _type_last_size; } | |
735 int num_alias_types() { return _num_alias_types; } | |
736 | |
737 void init_type_arena() { _type_arena = &_Compile_types; } | |
738 void set_type_arena(Arena* a) { _type_arena = a; } | |
739 void set_type_dict(Dict* d) { _type_dict = d; } | |
740 void set_type_hwm(void* p) { _type_hwm = p; } | |
741 void set_type_last_size(size_t sz) { _type_last_size = sz; } | |
742 | |
743 const TypeFunc* last_tf(ciMethod* m) { | |
744 return (m == _last_tf_m) ? _last_tf : NULL; | |
745 } | |
746 void set_last_tf(ciMethod* m, const TypeFunc* tf) { | |
747 assert(m != NULL || tf == NULL, ""); | |
748 _last_tf_m = m; | |
749 _last_tf = tf; | |
750 } | |
751 | |
752 AliasType* alias_type(int idx) { assert(idx < num_alias_types(), "oob"); return _alias_types[idx]; } | |
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753 AliasType* alias_type(const TypePtr* adr_type, ciField* field = NULL) { return find_alias_type(adr_type, false, field); } |
0 | 754 bool have_alias_type(const TypePtr* adr_type); |
755 AliasType* alias_type(ciField* field); | |
756 | |
757 int get_alias_index(const TypePtr* at) { return alias_type(at)->index(); } | |
758 const TypePtr* get_adr_type(uint aidx) { return alias_type(aidx)->adr_type(); } | |
759 int get_general_index(uint aidx) { return alias_type(aidx)->general_index(); } | |
760 | |
761 // Building nodes | |
762 void rethrow_exceptions(JVMState* jvms); | |
763 void return_values(JVMState* jvms); | |
764 JVMState* build_start_state(StartNode* start, const TypeFunc* tf); | |
765 | |
766 // Decide how to build a call. | |
767 // The profile factor is a discount to apply to this site's interp. profile. | |
7478 | 768 CallGenerator* call_generator(ciMethod* call_method, int vtable_index, bool call_does_dispatch, JVMState* jvms, bool allow_inline, float profile_factor, bool allow_intrinsics = true, bool delayed_forbidden = false); |
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769 bool should_delay_inlining(ciMethod* call_method, JVMState* jvms); |
0 | 770 |
7478 | 771 // Helper functions to identify inlining potential at call-site |
772 ciMethod* optimize_virtual_call(ciMethod* caller, int bci, ciInstanceKlass* klass, | |
773 ciMethod* callee, const TypeOopPtr* receiver_type, | |
774 bool is_virtual, | |
775 bool &call_does_dispatch, int &vtable_index); | |
776 ciMethod* optimize_inlining(ciMethod* caller, int bci, ciInstanceKlass* klass, | |
777 ciMethod* callee, const TypeOopPtr* receiver_type); | |
778 | |
0 | 779 // Report if there were too many traps at a current method and bci. |
780 // Report if a trap was recorded, and/or PerMethodTrapLimit was exceeded. | |
781 // If there is no MDO at all, report no trap unless told to assume it. | |
782 bool too_many_traps(ciMethod* method, int bci, Deoptimization::DeoptReason reason); | |
783 // This version, unspecific to a particular bci, asks if | |
784 // PerMethodTrapLimit was exceeded for all inlined methods seen so far. | |
785 bool too_many_traps(Deoptimization::DeoptReason reason, | |
786 // Privately used parameter for logging: | |
787 ciMethodData* logmd = NULL); | |
788 // Report if there were too many recompiles at a method and bci. | |
789 bool too_many_recompiles(ciMethod* method, int bci, Deoptimization::DeoptReason reason); | |
790 | |
791 // Parsing, optimization | |
792 PhaseGVN* initial_gvn() { return _initial_gvn; } | |
793 Unique_Node_List* for_igvn() { return _for_igvn; } | |
794 inline void record_for_igvn(Node* n); // Body is after class Unique_Node_List. | |
795 void set_initial_gvn(PhaseGVN *gvn) { _initial_gvn = gvn; } | |
796 void set_for_igvn(Unique_Node_List *for_igvn) { _for_igvn = for_igvn; } | |
797 | |
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798 // Replace n by nn using initial_gvn, calling hash_delete and |
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799 // record_for_igvn as needed. |
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800 void gvn_replace_by(Node* n, Node* nn); |
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801 |
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802 |
0 | 803 void identify_useful_nodes(Unique_Node_List &useful); |
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804 void update_dead_node_list(Unique_Node_List &useful); |
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805 void remove_useless_nodes (Unique_Node_List &useful); |
0 | 806 |
807 WarmCallInfo* warm_calls() const { return _warm_calls; } | |
808 void set_warm_calls(WarmCallInfo* l) { _warm_calls = l; } | |
809 WarmCallInfo* pop_warm_call(); | |
810 | |
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811 // Record this CallGenerator for inlining at the end of parsing. |
7473 | 812 void add_late_inline(CallGenerator* cg) { |
813 _late_inlines.insert_before(_late_inlines_pos, cg); | |
814 _late_inlines_pos++; | |
815 } | |
816 | |
817 void prepend_late_inline(CallGenerator* cg) { | |
818 _late_inlines.insert_before(0, cg); | |
819 } | |
820 | |
821 void add_string_late_inline(CallGenerator* cg) { | |
822 _string_late_inlines.push(cg); | |
823 } | |
824 | |
825 void remove_useless_late_inlines(GrowableArray<CallGenerator*>* inlines, Unique_Node_List &useful); | |
1080
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826 |
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827 void dump_inlining(); |
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828 |
7473 | 829 bool over_inlining_cutoff() const { |
830 if (!inlining_incrementally()) { | |
831 return unique() > (uint)NodeCountInliningCutoff; | |
832 } else { | |
833 return live_nodes() > (uint)LiveNodeCountInliningCutoff; | |
834 } | |
835 } | |
836 | |
837 void inc_number_of_mh_late_inlines() { _number_of_mh_late_inlines++; } | |
838 void dec_number_of_mh_late_inlines() { assert(_number_of_mh_late_inlines > 0, "_number_of_mh_late_inlines < 0 !"); _number_of_mh_late_inlines--; } | |
839 bool has_mh_late_inlines() const { return _number_of_mh_late_inlines > 0; } | |
840 | |
841 void inline_incrementally_one(PhaseIterGVN& igvn); | |
842 void inline_incrementally(PhaseIterGVN& igvn); | |
843 void inline_string_calls(bool parse_time); | |
844 | |
0 | 845 // Matching, CFG layout, allocation, code generation |
846 PhaseCFG* cfg() { return _cfg; } | |
847 bool select_24_bit_instr() const { return _select_24_bit_instr; } | |
848 bool in_24_bit_fp_mode() const { return _in_24_bit_fp_mode; } | |
859
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849 bool has_java_calls() const { return _java_calls > 0; } |
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850 int java_calls() const { return _java_calls; } |
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851 int inner_loops() const { return _inner_loops; } |
0 | 852 Matcher* matcher() { return _matcher; } |
853 PhaseRegAlloc* regalloc() { return _regalloc; } | |
854 int frame_slots() const { return _frame_slots; } | |
855 int frame_size_in_words() const; // frame_slots in units of the polymorphic 'words' | |
856 RegMask& FIRST_STACK_mask() { return _FIRST_STACK_mask; } | |
857 Arena* indexSet_arena() { return _indexSet_arena; } | |
858 void* indexSet_free_block_list() { return _indexSet_free_block_list; } | |
859 uint node_bundling_limit() { return _node_bundling_limit; } | |
860 Bundle* node_bundling_base() { return _node_bundling_base; } | |
861 void set_node_bundling_limit(uint n) { _node_bundling_limit = n; } | |
862 void set_node_bundling_base(Bundle* b) { _node_bundling_base = b; } | |
863 bool starts_bundle(const Node *n) const; | |
864 bool need_stack_bang(int frame_size_in_bytes) const; | |
865 bool need_register_stack_bang() const; | |
866 | |
867 void set_matcher(Matcher* m) { _matcher = m; } | |
868 //void set_regalloc(PhaseRegAlloc* ra) { _regalloc = ra; } | |
869 void set_indexSet_arena(Arena* a) { _indexSet_arena = a; } | |
870 void set_indexSet_free_block_list(void* p) { _indexSet_free_block_list = p; } | |
871 | |
872 // Remember if this compilation changes hardware mode to 24-bit precision | |
873 void set_24_bit_selection_and_mode(bool selection, bool mode) { | |
874 _select_24_bit_instr = selection; | |
875 _in_24_bit_fp_mode = mode; | |
876 } | |
877 | |
859
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878 void set_java_calls(int z) { _java_calls = z; } |
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879 void set_inner_loops(int z) { _inner_loops = z; } |
0 | 880 |
881 // Instruction bits passed off to the VM | |
882 int code_size() { return _method_size; } | |
883 CodeBuffer* code_buffer() { return &_code_buffer; } | |
884 int first_block_size() { return _first_block_size; } | |
885 void set_frame_complete(int off) { _code_offsets.set_value(CodeOffsets::Frame_Complete, off); } | |
886 ExceptionHandlerTable* handler_table() { return &_handler_table; } | |
887 ImplicitExceptionTable* inc_table() { return &_inc_table; } | |
888 OopMapSet* oop_map_set() { return _oop_map_set; } | |
889 DebugInformationRecorder* debug_info() { return env()->debug_info(); } | |
890 Dependencies* dependencies() { return env()->dependencies(); } | |
891 static int CompiledZap_count() { return _CompiledZap_count; } | |
892 BufferBlob* scratch_buffer_blob() { return _scratch_buffer_blob; } | |
2008 | 893 void init_scratch_buffer_blob(int const_size); |
894 void clear_scratch_buffer_blob(); | |
0 | 895 void set_scratch_buffer_blob(BufferBlob* b) { _scratch_buffer_blob = b; } |
896 relocInfo* scratch_locs_memory() { return _scratch_locs_memory; } | |
897 void set_scratch_locs_memory(relocInfo* b) { _scratch_locs_memory = b; } | |
898 | |
899 // emit to scratch blob, report resulting size | |
900 uint scratch_emit_size(const Node* n); | |
2008 | 901 void set_in_scratch_emit_size(bool x) { _in_scratch_emit_size = x; } |
902 bool in_scratch_emit_size() const { return _in_scratch_emit_size; } | |
0 | 903 |
904 enum ScratchBufferBlob { | |
905 MAX_inst_size = 1024, | |
906 MAX_locs_size = 128, // number of relocInfo elements | |
907 MAX_const_size = 128, | |
908 MAX_stubs_size = 128 | |
909 }; | |
910 | |
911 // Major entry point. Given a Scope, compile the associated method. | |
912 // For normal compilations, entry_bci is InvocationEntryBci. For on stack | |
913 // replacement, entry_bci indicates the bytecode for which to compile a | |
914 // continuation. | |
915 Compile(ciEnv* ci_env, C2Compiler* compiler, ciMethod* target, | |
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916 int entry_bci, bool subsume_loads, bool do_escape_analysis); |
0 | 917 |
918 // Second major entry point. From the TypeFunc signature, generate code | |
919 // to pass arguments from the Java calling convention to the C calling | |
920 // convention. | |
921 Compile(ciEnv* ci_env, const TypeFunc *(*gen)(), | |
922 address stub_function, const char *stub_name, | |
923 int is_fancy_jump, bool pass_tls, | |
924 bool save_arg_registers, bool return_pc); | |
925 | |
926 // From the TypeFunc signature, generate code to pass arguments | |
927 // from Compiled calling convention to Interpreter's calling convention | |
928 void Generate_Compiled_To_Interpreter_Graph(const TypeFunc *tf, address interpreter_entry); | |
929 | |
930 // From the TypeFunc signature, generate code to pass arguments | |
931 // from Interpreter's calling convention to Compiler's calling convention | |
932 void Generate_Interpreter_To_Compiled_Graph(const TypeFunc *tf); | |
933 | |
934 // Are we compiling a method? | |
935 bool has_method() { return method() != NULL; } | |
936 | |
937 // Maybe print some information about this compile. | |
938 void print_compile_messages(); | |
939 | |
940 // Final graph reshaping, a post-pass after the regular optimizer is done. | |
941 bool final_graph_reshaping(); | |
942 | |
943 // returns true if adr is completely contained in the given alias category | |
944 bool must_alias(const TypePtr* adr, int alias_idx); | |
945 | |
946 // returns true if adr overlaps with the given alias category | |
947 bool can_alias(const TypePtr* adr, int alias_idx); | |
948 | |
949 // Driver for converting compiler's IR into machine code bits | |
950 void Output(); | |
951 | |
952 // Accessors for node bundling info. | |
953 Bundle* node_bundling(const Node *n); | |
954 bool valid_bundle_info(const Node *n); | |
955 | |
956 // Schedule and Bundle the instructions | |
957 void ScheduleAndBundle(); | |
958 | |
959 // Build OopMaps for each GC point | |
960 void BuildOopMaps(); | |
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961 |
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962 // Append debug info for the node "local" at safepoint node "sfpt" to the |
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963 // "array", May also consult and add to "objs", which describes the |
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964 // scalar-replaced objects. |
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965 void FillLocArray( int idx, MachSafePointNode* sfpt, |
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966 Node *local, GrowableArray<ScopeValue*> *array, |
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967 GrowableArray<ScopeValue*> *objs ); |
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968 |
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969 // If "objs" contains an ObjectValue whose id is "id", returns it, else NULL. |
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970 static ObjectValue* sv_for_node_id(GrowableArray<ScopeValue*> *objs, int id); |
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971 // Requres that "objs" does not contains an ObjectValue whose id matches |
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972 // that of "sv. Appends "sv". |
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973 static void set_sv_for_object_node(GrowableArray<ScopeValue*> *objs, |
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974 ObjectValue* sv ); |
0 | 975 |
976 // Process an OopMap Element while emitting nodes | |
977 void Process_OopMap_Node(MachNode *mach, int code_offset); | |
978 | |
3851 | 979 // Initialize code buffer |
980 CodeBuffer* init_buffer(uint* blk_starts); | |
981 | |
0 | 982 // Write out basic block data to code buffer |
3851 | 983 void fill_buffer(CodeBuffer* cb, uint* blk_starts); |
0 | 984 |
985 // Determine which variable sized branches can be shortened | |
3851 | 986 void shorten_branches(uint* blk_starts, int& code_size, int& reloc_size, int& stub_size); |
987 | |
0 | 988 // Compute the size of first NumberOfLoopInstrToAlign instructions |
989 // at the head of a loop. | |
990 void compute_loop_first_inst_sizes(); | |
991 | |
992 // Compute the information for the exception tables | |
993 void FillExceptionTables(uint cnt, uint *call_returns, uint *inct_starts, Label *blk_labels); | |
994 | |
995 // Stack slots that may be unused by the calling convention but must | |
996 // otherwise be preserved. On Intel this includes the return address. | |
997 // On PowerPC it includes the 4 words holding the old TOC & LR glue. | |
998 uint in_preserve_stack_slots(); | |
999 | |
1000 // "Top of Stack" slots that may be unused by the calling convention but must | |
1001 // otherwise be preserved. | |
1002 // On Intel these are not necessary and the value can be zero. | |
1003 // On Sparc this describes the words reserved for storing a register window | |
1004 // when an interrupt occurs. | |
1005 static uint out_preserve_stack_slots(); | |
1006 | |
1007 // Number of outgoing stack slots killed above the out_preserve_stack_slots | |
1008 // for calls to C. Supports the var-args backing area for register parms. | |
1009 uint varargs_C_out_slots_killed() const; | |
1010 | |
1011 // Number of Stack Slots consumed by a synchronization entry | |
1012 int sync_stack_slots() const; | |
1013 | |
1014 // Compute the name of old_SP. See <arch>.ad for frame layout. | |
1015 OptoReg::Name compute_old_SP(); | |
1016 | |
1017 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
1018 static bool is_node_getting_a_safepoint(Node*); | |
1019 void Insert_zap_nodes(); | |
1020 Node* call_zap_node(MachSafePointNode* n, int block_no); | |
1021 #endif | |
1022 | |
1023 private: | |
1024 // Phase control: | |
1025 void Init(int aliaslevel); // Prepare for a single compilation | |
1026 int Inline_Warm(); // Find more inlining work. | |
1027 void Finish_Warm(); // Give up on further inlines. | |
1028 void Optimize(); // Given a graph, optimize it | |
1029 void Code_Gen(); // Generate code from a graph | |
1030 | |
1031 // Management of the AliasType table. | |
1032 void grow_alias_types(); | |
1033 AliasCacheEntry* probe_alias_cache(const TypePtr* adr_type); | |
1034 const TypePtr *flatten_alias_type(const TypePtr* adr_type) const; | |
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1035 AliasType* find_alias_type(const TypePtr* adr_type, bool no_create, ciField* field); |
0 | 1036 |
1037 void verify_top(Node*) const PRODUCT_RETURN; | |
1038 | |
1039 // Intrinsic setup. | |
1040 void register_library_intrinsics(); // initializer | |
1041 CallGenerator* make_vm_intrinsic(ciMethod* m, bool is_virtual); // constructor | |
1042 int intrinsic_insertion_index(ciMethod* m, bool is_virtual); // helper | |
1043 CallGenerator* find_intrinsic(ciMethod* m, bool is_virtual); // query fn | |
1044 void register_intrinsic(CallGenerator* cg); // update fn | |
1045 | |
1046 #ifndef PRODUCT | |
1047 static juint _intrinsic_hist_count[vmIntrinsics::ID_LIMIT]; | |
1048 static jubyte _intrinsic_hist_flags[vmIntrinsics::ID_LIMIT]; | |
1049 #endif | |
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1050 // Function calls made by the public function final_graph_reshaping. |
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1051 // No need to be made public as they are not called elsewhere. |
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1052 void final_graph_reshaping_impl( Node *n, Final_Reshape_Counts &frc); |
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1053 void final_graph_reshaping_walk( Node_Stack &nstack, Node *root, Final_Reshape_Counts &frc ); |
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1054 void eliminate_redundant_card_marks(Node* n); |
0 | 1055 |
1056 public: | |
1057 | |
1058 // Note: Histogram array size is about 1 Kb. | |
1059 enum { // flag bits: | |
1060 _intrinsic_worked = 1, // succeeded at least once | |
1061 _intrinsic_failed = 2, // tried it but it failed | |
1062 _intrinsic_disabled = 4, // was requested but disabled (e.g., -XX:-InlineUnsafeOps) | |
1063 _intrinsic_virtual = 8, // was seen in the virtual form (rare) | |
1064 _intrinsic_both = 16 // was seen in the non-virtual form (usual) | |
1065 }; | |
1066 // Update histogram. Return boolean if this is a first-time occurrence. | |
1067 static bool gather_intrinsic_statistics(vmIntrinsics::ID id, | |
1068 bool is_virtual, int flags) PRODUCT_RETURN0; | |
1069 static void print_intrinsic_statistics() PRODUCT_RETURN; | |
1070 | |
1071 // Graph verification code | |
1072 // Walk the node list, verifying that there is a one-to-one | |
1073 // correspondence between Use-Def edges and Def-Use edges | |
1074 // The option no_dead_code enables stronger checks that the | |
1075 // graph is strongly connected from root in both directions. | |
1076 void verify_graph_edges(bool no_dead_code = false) PRODUCT_RETURN; | |
1077 | |
1078 // End-of-run dumps. | |
1079 static void print_statistics() PRODUCT_RETURN; | |
1080 | |
1081 // Dump formatted assembly | |
1082 void dump_asm(int *pcs = NULL, uint pc_limit = 0) PRODUCT_RETURN; | |
1083 void dump_pc(int *pcs, int pc_limit, Node *n); | |
1084 | |
1085 // Verify ADLC assumptions during startup | |
1086 static void adlc_verification() PRODUCT_RETURN; | |
1087 | |
1088 // Definitions of pd methods | |
1089 static void pd_compiler2_init(); | |
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1090 |
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1091 // Auxiliary method for randomized fuzzing/stressing |
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1092 static bool randomized_select(int count); |
0 | 1093 }; |
1972 | 1094 |
1095 #endif // SHARE_VM_OPTO_COMPILE_HPP |