Mercurial > hg > truffle
annotate src/share/vm/opto/compile.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | 60a14ad85270 |
| children | 2f644f85485d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 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 | |
| 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" | |
| 33 #include "libadt/dict.hpp" | |
| 34 #include "libadt/port.hpp" | |
| 35 #include "libadt/vectset.hpp" | |
| 36 #include "memory/resourceArea.hpp" | |
| 37 #include "opto/idealGraphPrinter.hpp" | |
| 38 #include "opto/phase.hpp" | |
| 39 #include "opto/regmask.hpp" | |
| 40 #include "runtime/deoptimization.hpp" | |
| 41 #include "runtime/vmThread.hpp" | |
| 42 | |
| 0 | 43 class Block; |
| 44 class Bundle; | |
| 45 class C2Compiler; | |
| 46 class CallGenerator; | |
| 47 class ConnectionGraph; | |
| 48 class InlineTree; | |
| 49 class Int_Array; | |
| 50 class Matcher; | |
| 51 class MachNode; | |
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52 class MachSafePointNode; |
| 0 | 53 class Node; |
| 54 class Node_Array; | |
| 55 class Node_Notes; | |
| 56 class OptoReg; | |
| 57 class PhaseCFG; | |
| 58 class PhaseGVN; | |
| 1172 | 59 class PhaseIterGVN; |
| 0 | 60 class PhaseRegAlloc; |
| 61 class PhaseCCP; | |
| 62 class PhaseCCP_DCE; | |
| 63 class RootNode; | |
| 64 class relocInfo; | |
| 65 class Scope; | |
| 66 class StartNode; | |
| 67 class SafePointNode; | |
| 68 class JVMState; | |
| 69 class TypeData; | |
| 70 class TypePtr; | |
| 71 class TypeFunc; | |
| 72 class Unique_Node_List; | |
| 73 class nmethod; | |
| 74 class WarmCallInfo; | |
| 75 | |
| 76 //------------------------------Compile---------------------------------------- | |
| 77 // This class defines a top-level Compiler invocation. | |
| 78 | |
| 79 class Compile : public Phase { | |
| 80 public: | |
| 81 // Fixed alias indexes. (See also MergeMemNode.) | |
| 82 enum { | |
| 83 AliasIdxTop = 1, // pseudo-index, aliases to nothing (used as sentinel value) | |
| 84 AliasIdxBot = 2, // pseudo-index, aliases to everything | |
| 85 AliasIdxRaw = 3 // hard-wired index for TypeRawPtr::BOTTOM | |
| 86 }; | |
| 87 | |
| 88 // Variant of TraceTime(NULL, &_t_accumulator, TimeCompiler); | |
| 89 // Integrated with logging. If logging is turned on, and dolog is true, | |
| 90 // then brackets are put into the log, with time stamps and node counts. | |
| 91 // (The time collection itself is always conditionalized on TimeCompiler.) | |
| 92 class TracePhase : public TraceTime { | |
| 93 private: | |
| 94 Compile* C; | |
| 95 CompileLog* _log; | |
| 96 public: | |
| 97 TracePhase(const char* name, elapsedTimer* accumulator, bool dolog); | |
| 98 ~TracePhase(); | |
| 99 }; | |
| 100 | |
| 101 // Information per category of alias (memory slice) | |
| 102 class AliasType { | |
| 103 private: | |
| 104 friend class Compile; | |
| 105 | |
| 106 int _index; // unique index, used with MergeMemNode | |
| 107 const TypePtr* _adr_type; // normalized address type | |
| 108 ciField* _field; // relevant instance field, or null if none | |
| 109 bool _is_rewritable; // false if the memory is write-once only | |
| 110 int _general_index; // if this is type is an instance, the general | |
| 111 // type that this is an instance of | |
| 112 | |
| 113 void Init(int i, const TypePtr* at); | |
| 114 | |
| 115 public: | |
| 116 int index() const { return _index; } | |
| 117 const TypePtr* adr_type() const { return _adr_type; } | |
| 118 ciField* field() const { return _field; } | |
| 119 bool is_rewritable() const { return _is_rewritable; } | |
| 120 bool is_volatile() const { return (_field ? _field->is_volatile() : false); } | |
| 121 int general_index() const { return (_general_index != 0) ? _general_index : _index; } | |
| 122 | |
| 123 void set_rewritable(bool z) { _is_rewritable = z; } | |
| 124 void set_field(ciField* f) { | |
| 125 assert(!_field,""); | |
| 126 _field = f; | |
| 127 if (f->is_final()) _is_rewritable = false; | |
| 128 } | |
| 129 | |
| 130 void print_on(outputStream* st) PRODUCT_RETURN; | |
| 131 }; | |
| 132 | |
| 133 enum { | |
| 134 logAliasCacheSize = 6, | |
| 135 AliasCacheSize = (1<<logAliasCacheSize) | |
| 136 }; | |
| 137 struct AliasCacheEntry { const TypePtr* _adr_type; int _index; }; // simple duple type | |
| 138 enum { | |
| 139 trapHistLength = methodDataOopDesc::_trap_hist_limit | |
| 140 }; | |
| 141 | |
| 142 private: | |
| 143 // Fixed parameters to this compilation. | |
| 144 const int _compile_id; | |
| 145 const bool _save_argument_registers; // save/restore arg regs for trampolines | |
| 146 const bool _subsume_loads; // Load can be matched as part of a larger op. | |
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147 const bool _do_escape_analysis; // Do escape analysis. |
| 0 | 148 ciMethod* _method; // The method being compiled. |
| 149 int _entry_bci; // entry bci for osr methods. | |
| 150 const TypeFunc* _tf; // My kind of signature | |
| 151 InlineTree* _ilt; // Ditto (temporary). | |
| 152 address _stub_function; // VM entry for stub being compiled, or NULL | |
| 153 const char* _stub_name; // Name of stub or adapter being compiled, or NULL | |
| 154 address _stub_entry_point; // Compile code entry for generated stub, or NULL | |
| 155 | |
| 156 // Control of this compilation. | |
| 157 int _num_loop_opts; // Number of iterations for doing loop optimiztions | |
| 158 int _max_inline_size; // Max inline size for this compilation | |
| 159 int _freq_inline_size; // Max hot method inline size for this compilation | |
| 160 int _fixed_slots; // count of frame slots not allocated by the register | |
| 161 // allocator i.e. locks, original deopt pc, etc. | |
| 162 // For deopt | |
| 163 int _orig_pc_slot; | |
| 164 int _orig_pc_slot_offset_in_bytes; | |
| 165 | |
| 166 int _major_progress; // Count of something big happening | |
| 167 bool _has_loops; // True if the method _may_ have some loops | |
| 168 bool _has_split_ifs; // True if the method _may_ have some split-if | |
| 169 bool _has_unsafe_access; // True if the method _may_ produce faults in unsafe loads or stores. | |
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170 bool _has_stringbuilder; // True StringBuffers or StringBuilders are allocated |
| 0 | 171 uint _trap_hist[trapHistLength]; // Cumulative traps |
| 172 bool _trap_can_recompile; // Have we emitted a recompiling trap? | |
| 173 uint _decompile_count; // Cumulative decompilation counts. | |
| 174 bool _do_inlining; // True if we intend to do inlining | |
| 175 bool _do_scheduling; // True if we intend to do scheduling | |
| 418 | 176 bool _do_freq_based_layout; // True if we intend to do frequency based block layout |
| 0 | 177 bool _do_count_invocations; // True if we generate code to count invocations |
| 178 bool _do_method_data_update; // True if we generate code to update methodDataOops | |
| 179 int _AliasLevel; // Locally-adjusted version of AliasLevel flag. | |
| 180 bool _print_assembly; // True if we should dump assembly code for this compilation | |
| 181 #ifndef PRODUCT | |
| 182 bool _trace_opto_output; | |
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183 bool _parsed_irreducible_loop; // True if ciTypeFlow detected irreducible loops during parsing |
| 0 | 184 #endif |
| 185 | |
| 1265 | 186 // JSR 292 |
| 187 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. | |
| 188 | |
| 0 | 189 // Compilation environment. |
| 190 Arena _comp_arena; // Arena with lifetime equivalent to Compile | |
| 191 ciEnv* _env; // CI interface | |
| 192 CompileLog* _log; // from CompilerThread | |
| 193 const char* _failure_reason; // for record_failure/failing pattern | |
| 194 GrowableArray<CallGenerator*>* _intrinsics; // List of intrinsics. | |
| 195 GrowableArray<Node*>* _macro_nodes; // List of nodes which need to be expanded before matching. | |
| 1172 | 196 GrowableArray<Node*>* _predicate_opaqs; // List of Opaque1 nodes for the loop predicates. |
| 0 | 197 ConnectionGraph* _congraph; |
| 198 #ifndef PRODUCT | |
| 199 IdealGraphPrinter* _printer; | |
| 200 #endif | |
| 201 | |
| 202 // Node management | |
| 203 uint _unique; // Counter for unique Node indices | |
| 204 debug_only(static int _debug_idx;) // Monotonic counter (not reset), use -XX:BreakAtNode=<idx> | |
| 205 Arena _node_arena; // Arena for new-space Nodes | |
| 206 Arena _old_arena; // Arena for old-space Nodes, lifetime during xform | |
| 207 RootNode* _root; // Unique root of compilation, or NULL after bail-out. | |
| 208 Node* _top; // Unique top node. (Reset by various phases.) | |
| 209 | |
| 210 Node* _immutable_memory; // Initial memory state | |
| 211 | |
| 212 Node* _recent_alloc_obj; | |
| 213 Node* _recent_alloc_ctl; | |
| 214 | |
| 215 // Blocked array of debugging and profiling information, | |
| 216 // tracked per node. | |
| 217 enum { _log2_node_notes_block_size = 8, | |
| 218 _node_notes_block_size = (1<<_log2_node_notes_block_size) | |
| 219 }; | |
| 220 GrowableArray<Node_Notes*>* _node_note_array; | |
| 221 Node_Notes* _default_node_notes; // default notes for new nodes | |
| 222 | |
| 223 // After parsing and every bulk phase we hang onto the Root instruction. | |
| 224 // The RootNode instruction is where the whole program begins. It produces | |
| 225 // the initial Control and BOTTOM for everybody else. | |
| 226 | |
| 227 // Type management | |
| 228 Arena _Compile_types; // Arena for all types | |
| 229 Arena* _type_arena; // Alias for _Compile_types except in Initialize_shared() | |
| 230 Dict* _type_dict; // Intern table | |
| 231 void* _type_hwm; // Last allocation (see Type::operator new/delete) | |
| 232 size_t _type_last_size; // Last allocation size (see Type::operator new/delete) | |
| 233 ciMethod* _last_tf_m; // Cache for | |
| 234 const TypeFunc* _last_tf; // TypeFunc::make | |
| 235 AliasType** _alias_types; // List of alias types seen so far. | |
| 236 int _num_alias_types; // Logical length of _alias_types | |
| 237 int _max_alias_types; // Physical length of _alias_types | |
| 238 AliasCacheEntry _alias_cache[AliasCacheSize]; // Gets aliases w/o data structure walking | |
| 239 | |
| 240 // Parsing, optimization | |
| 241 PhaseGVN* _initial_gvn; // Results of parse-time PhaseGVN | |
| 242 Unique_Node_List* _for_igvn; // Initial work-list for next round of Iterative GVN | |
| 243 WarmCallInfo* _warm_calls; // Sorted work-list for heat-based inlining. | |
| 244 | |
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245 GrowableArray<CallGenerator*> _late_inlines; // List of CallGenerators to be revisited after |
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246 // main parsing has finished. |
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247 |
| 0 | 248 // Matching, CFG layout, allocation, code generation |
| 249 PhaseCFG* _cfg; // Results of CFG finding | |
| 250 bool _select_24_bit_instr; // We selected an instruction with a 24-bit result | |
| 251 bool _in_24_bit_fp_mode; // We are emitting instructions with 24-bit results | |
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252 int _java_calls; // Number of java calls in the method |
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253 int _inner_loops; // Number of inner loops in the method |
| 0 | 254 Matcher* _matcher; // Engine to map ideal to machine instructions |
| 255 PhaseRegAlloc* _regalloc; // Results of register allocation. | |
| 256 int _frame_slots; // Size of total frame in stack slots | |
| 257 CodeOffsets _code_offsets; // Offsets into the code for various interesting entries | |
| 258 RegMask _FIRST_STACK_mask; // All stack slots usable for spills (depends on frame layout) | |
| 259 Arena* _indexSet_arena; // control IndexSet allocation within PhaseChaitin | |
| 260 void* _indexSet_free_block_list; // free list of IndexSet bit blocks | |
| 261 | |
| 262 uint _node_bundling_limit; | |
| 263 Bundle* _node_bundling_base; // Information for instruction bundling | |
| 264 | |
| 265 // Instruction bits passed off to the VM | |
| 266 int _method_size; // Size of nmethod code segment in bytes | |
| 267 CodeBuffer _code_buffer; // Where the code is assembled | |
| 268 int _first_block_size; // Size of unvalidated entry point code / OSR poison code | |
| 269 ExceptionHandlerTable _handler_table; // Table of native-code exception handlers | |
| 270 ImplicitExceptionTable _inc_table; // Table of implicit null checks in native code | |
| 271 OopMapSet* _oop_map_set; // Table of oop maps (one for each safepoint location) | |
| 272 static int _CompiledZap_count; // counter compared against CompileZap[First/Last] | |
| 273 BufferBlob* _scratch_buffer_blob; // For temporary code buffers. | |
| 274 relocInfo* _scratch_locs_memory; // For temporary code buffers. | |
| 275 | |
| 276 public: | |
| 277 // Accessors | |
| 278 | |
| 279 // The Compile instance currently active in this (compiler) thread. | |
| 280 static Compile* current() { | |
| 281 return (Compile*) ciEnv::current()->compiler_data(); | |
| 282 } | |
| 283 | |
| 284 // ID for this compilation. Useful for setting breakpoints in the debugger. | |
| 285 int compile_id() const { return _compile_id; } | |
| 286 | |
| 287 // Does this compilation allow instructions to subsume loads? User | |
| 288 // instructions that subsume a load may result in an unschedulable | |
| 289 // instruction sequence. | |
| 290 bool subsume_loads() const { return _subsume_loads; } | |
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291 // Do escape analysis. |
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292 bool do_escape_analysis() const { return _do_escape_analysis; } |
| 0 | 293 bool save_argument_registers() const { return _save_argument_registers; } |
| 294 | |
| 295 | |
| 296 // Other fixed compilation parameters. | |
| 297 ciMethod* method() const { return _method; } | |
| 298 int entry_bci() const { return _entry_bci; } | |
| 299 bool is_osr_compilation() const { return _entry_bci != InvocationEntryBci; } | |
| 300 bool is_method_compilation() const { return (_method != NULL && !_method->flags().is_native()); } | |
| 301 const TypeFunc* tf() const { assert(_tf!=NULL, ""); return _tf; } | |
| 302 void init_tf(const TypeFunc* tf) { assert(_tf==NULL, ""); _tf = tf; } | |
| 303 InlineTree* ilt() const { return _ilt; } | |
| 304 address stub_function() const { return _stub_function; } | |
| 305 const char* stub_name() const { return _stub_name; } | |
| 306 address stub_entry_point() const { return _stub_entry_point; } | |
| 307 | |
| 308 // Control of this compilation. | |
| 309 int fixed_slots() const { assert(_fixed_slots >= 0, ""); return _fixed_slots; } | |
| 310 void set_fixed_slots(int n) { _fixed_slots = n; } | |
| 311 int major_progress() const { return _major_progress; } | |
| 312 void set_major_progress() { _major_progress++; } | |
| 313 void clear_major_progress() { _major_progress = 0; } | |
| 314 int num_loop_opts() const { return _num_loop_opts; } | |
| 315 void set_num_loop_opts(int n) { _num_loop_opts = n; } | |
| 316 int max_inline_size() const { return _max_inline_size; } | |
| 317 void set_freq_inline_size(int n) { _freq_inline_size = n; } | |
| 318 int freq_inline_size() const { return _freq_inline_size; } | |
| 319 void set_max_inline_size(int n) { _max_inline_size = n; } | |
| 320 bool has_loops() const { return _has_loops; } | |
| 321 void set_has_loops(bool z) { _has_loops = z; } | |
| 322 bool has_split_ifs() const { return _has_split_ifs; } | |
| 323 void set_has_split_ifs(bool z) { _has_split_ifs = z; } | |
| 324 bool has_unsafe_access() const { return _has_unsafe_access; } | |
| 325 void set_has_unsafe_access(bool z) { _has_unsafe_access = z; } | |
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326 bool has_stringbuilder() const { return _has_stringbuilder; } |
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327 void set_has_stringbuilder(bool z) { _has_stringbuilder = z; } |
| 0 | 328 void set_trap_count(uint r, uint c) { assert(r < trapHistLength, "oob"); _trap_hist[r] = c; } |
| 329 uint trap_count(uint r) const { assert(r < trapHistLength, "oob"); return _trap_hist[r]; } | |
| 330 bool trap_can_recompile() const { return _trap_can_recompile; } | |
| 331 void set_trap_can_recompile(bool z) { _trap_can_recompile = z; } | |
| 332 uint decompile_count() const { return _decompile_count; } | |
| 333 void set_decompile_count(uint c) { _decompile_count = c; } | |
| 334 bool allow_range_check_smearing() const; | |
| 335 bool do_inlining() const { return _do_inlining; } | |
| 336 void set_do_inlining(bool z) { _do_inlining = z; } | |
| 337 bool do_scheduling() const { return _do_scheduling; } | |
| 338 void set_do_scheduling(bool z) { _do_scheduling = z; } | |
| 418 | 339 bool do_freq_based_layout() const{ return _do_freq_based_layout; } |
| 340 void set_do_freq_based_layout(bool z){ _do_freq_based_layout = z; } | |
| 0 | 341 bool do_count_invocations() const{ return _do_count_invocations; } |
| 342 void set_do_count_invocations(bool z){ _do_count_invocations = z; } | |
| 343 bool do_method_data_update() const { return _do_method_data_update; } | |
| 344 void set_do_method_data_update(bool z) { _do_method_data_update = z; } | |
| 345 int AliasLevel() const { return _AliasLevel; } | |
| 346 bool print_assembly() const { return _print_assembly; } | |
| 347 void set_print_assembly(bool z) { _print_assembly = z; } | |
| 348 // check the CompilerOracle for special behaviours for this compile | |
| 349 bool method_has_option(const char * option) { | |
| 350 return method() != NULL && method()->has_option(option); | |
| 351 } | |
| 352 #ifndef PRODUCT | |
| 353 bool trace_opto_output() const { return _trace_opto_output; } | |
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354 bool parsed_irreducible_loop() const { return _parsed_irreducible_loop; } |
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355 void set_parsed_irreducible_loop(bool z) { _parsed_irreducible_loop = z; } |
| 0 | 356 #endif |
| 357 | |
| 1265 | 358 // JSR 292 |
| 359 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } | |
| 360 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } | |
| 361 | |
| 0 | 362 void begin_method() { |
| 363 #ifndef PRODUCT | |
| 364 if (_printer) _printer->begin_method(this); | |
| 365 #endif | |
| 366 } | |
| 367 void print_method(const char * name, int level = 1) { | |
| 368 #ifndef PRODUCT | |
| 369 if (_printer) _printer->print_method(this, name, level); | |
| 370 #endif | |
| 371 } | |
| 372 void end_method() { | |
| 373 #ifndef PRODUCT | |
| 374 if (_printer) _printer->end_method(); | |
| 375 #endif | |
| 376 } | |
| 377 | |
| 378 int macro_count() { return _macro_nodes->length(); } | |
| 1172 | 379 int predicate_count() { return _predicate_opaqs->length();} |
| 0 | 380 Node* macro_node(int idx) { return _macro_nodes->at(idx); } |
| 1172 | 381 Node* predicate_opaque1_node(int idx) { return _predicate_opaqs->at(idx);} |
| 0 | 382 ConnectionGraph* congraph() { return _congraph;} |
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383 void set_congraph(ConnectionGraph* congraph) { _congraph = congraph;} |
| 0 | 384 void add_macro_node(Node * n) { |
| 385 //assert(n->is_macro(), "must be a macro node"); | |
| 386 assert(!_macro_nodes->contains(n), " duplicate entry in expand list"); | |
| 387 _macro_nodes->append(n); | |
| 388 } | |
| 389 void remove_macro_node(Node * n) { | |
| 390 // this function may be called twice for a node so check | |
| 391 // that the node is in the array before attempting to remove it | |
| 392 if (_macro_nodes->contains(n)) | |
| 393 _macro_nodes->remove(n); | |
| 1172 | 394 // remove from _predicate_opaqs list also if it is there |
| 395 if (predicate_count() > 0 && _predicate_opaqs->contains(n)){ | |
| 396 _predicate_opaqs->remove(n); | |
| 397 } | |
| 0 | 398 } |
| 1172 | 399 void add_predicate_opaq(Node * n) { |
| 400 assert(!_predicate_opaqs->contains(n), " duplicate entry in predicate opaque1"); | |
| 401 assert(_macro_nodes->contains(n), "should have already been in macro list"); | |
| 402 _predicate_opaqs->append(n); | |
| 403 } | |
| 404 // remove the opaque nodes that protect the predicates so that the unused checks and | |
| 405 // uncommon traps will be eliminated from the graph. | |
| 406 void cleanup_loop_predicates(PhaseIterGVN &igvn); | |
| 0 | 407 |
| 408 // Compilation environment. | |
| 409 Arena* comp_arena() { return &_comp_arena; } | |
| 410 ciEnv* env() const { return _env; } | |
| 411 CompileLog* log() const { return _log; } | |
| 412 bool failing() const { return _env->failing() || _failure_reason != NULL; } | |
| 413 const char* failure_reason() { return _failure_reason; } | |
| 414 bool failure_reason_is(const char* r) { return (r==_failure_reason) || (r!=NULL && _failure_reason!=NULL && strcmp(r, _failure_reason)==0); } | |
| 415 | |
| 416 void record_failure(const char* reason); | |
| 417 void record_method_not_compilable(const char* reason, bool all_tiers = false) { | |
| 418 // All bailouts cover "all_tiers" when TieredCompilation is off. | |
| 419 if (!TieredCompilation) all_tiers = true; | |
| 420 env()->record_method_not_compilable(reason, all_tiers); | |
| 421 // Record failure reason. | |
| 422 record_failure(reason); | |
| 423 } | |
| 424 void record_method_not_compilable_all_tiers(const char* reason) { | |
| 425 record_method_not_compilable(reason, true); | |
| 426 } | |
| 427 bool check_node_count(uint margin, const char* reason) { | |
| 428 if (unique() + margin > (uint)MaxNodeLimit) { | |
| 429 record_method_not_compilable(reason); | |
| 430 return true; | |
| 431 } else { | |
| 432 return false; | |
| 433 } | |
| 434 } | |
| 435 | |
| 436 // Node management | |
| 437 uint unique() const { return _unique; } | |
| 438 uint next_unique() { return _unique++; } | |
| 439 void set_unique(uint i) { _unique = i; } | |
| 440 static int debug_idx() { return debug_only(_debug_idx)+0; } | |
| 441 static void set_debug_idx(int i) { debug_only(_debug_idx = i); } | |
| 442 Arena* node_arena() { return &_node_arena; } | |
| 443 Arena* old_arena() { return &_old_arena; } | |
| 444 RootNode* root() const { return _root; } | |
| 445 void set_root(RootNode* r) { _root = r; } | |
| 446 StartNode* start() const; // (Derived from root.) | |
| 447 void init_start(StartNode* s); | |
| 448 Node* immutable_memory(); | |
| 449 | |
| 450 Node* recent_alloc_ctl() const { return _recent_alloc_ctl; } | |
| 451 Node* recent_alloc_obj() const { return _recent_alloc_obj; } | |
| 452 void set_recent_alloc(Node* ctl, Node* obj) { | |
| 453 _recent_alloc_ctl = ctl; | |
| 454 _recent_alloc_obj = obj; | |
| 455 } | |
| 456 | |
| 457 // Handy undefined Node | |
| 458 Node* top() const { return _top; } | |
| 459 | |
| 460 // these are used by guys who need to know about creation and transformation of top: | |
| 461 Node* cached_top_node() { return _top; } | |
| 462 void set_cached_top_node(Node* tn); | |
| 463 | |
| 464 GrowableArray<Node_Notes*>* node_note_array() const { return _node_note_array; } | |
| 465 void set_node_note_array(GrowableArray<Node_Notes*>* arr) { _node_note_array = arr; } | |
| 466 Node_Notes* default_node_notes() const { return _default_node_notes; } | |
| 467 void set_default_node_notes(Node_Notes* n) { _default_node_notes = n; } | |
| 468 | |
| 469 Node_Notes* node_notes_at(int idx) { | |
| 470 return locate_node_notes(_node_note_array, idx, false); | |
| 471 } | |
| 472 inline bool set_node_notes_at(int idx, Node_Notes* value); | |
| 473 | |
| 474 // Copy notes from source to dest, if they exist. | |
| 475 // Overwrite dest only if source provides something. | |
| 476 // Return true if information was moved. | |
| 477 bool copy_node_notes_to(Node* dest, Node* source); | |
| 478 | |
| 479 // Workhorse function to sort out the blocked Node_Notes array: | |
| 480 inline Node_Notes* locate_node_notes(GrowableArray<Node_Notes*>* arr, | |
| 481 int idx, bool can_grow = false); | |
| 482 | |
| 483 void grow_node_notes(GrowableArray<Node_Notes*>* arr, int grow_by); | |
| 484 | |
| 485 // Type management | |
| 486 Arena* type_arena() { return _type_arena; } | |
| 487 Dict* type_dict() { return _type_dict; } | |
| 488 void* type_hwm() { return _type_hwm; } | |
| 489 size_t type_last_size() { return _type_last_size; } | |
| 490 int num_alias_types() { return _num_alias_types; } | |
| 491 | |
| 492 void init_type_arena() { _type_arena = &_Compile_types; } | |
| 493 void set_type_arena(Arena* a) { _type_arena = a; } | |
| 494 void set_type_dict(Dict* d) { _type_dict = d; } | |
| 495 void set_type_hwm(void* p) { _type_hwm = p; } | |
| 496 void set_type_last_size(size_t sz) { _type_last_size = sz; } | |
| 497 | |
| 498 const TypeFunc* last_tf(ciMethod* m) { | |
| 499 return (m == _last_tf_m) ? _last_tf : NULL; | |
| 500 } | |
| 501 void set_last_tf(ciMethod* m, const TypeFunc* tf) { | |
| 502 assert(m != NULL || tf == NULL, ""); | |
| 503 _last_tf_m = m; | |
| 504 _last_tf = tf; | |
| 505 } | |
| 506 | |
| 507 AliasType* alias_type(int idx) { assert(idx < num_alias_types(), "oob"); return _alias_types[idx]; } | |
| 508 AliasType* alias_type(const TypePtr* adr_type) { return find_alias_type(adr_type, false); } | |
| 509 bool have_alias_type(const TypePtr* adr_type); | |
| 510 AliasType* alias_type(ciField* field); | |
| 511 | |
| 512 int get_alias_index(const TypePtr* at) { return alias_type(at)->index(); } | |
| 513 const TypePtr* get_adr_type(uint aidx) { return alias_type(aidx)->adr_type(); } | |
| 514 int get_general_index(uint aidx) { return alias_type(aidx)->general_index(); } | |
| 515 | |
| 516 // Building nodes | |
| 517 void rethrow_exceptions(JVMState* jvms); | |
| 518 void return_values(JVMState* jvms); | |
| 519 JVMState* build_start_state(StartNode* start, const TypeFunc* tf); | |
| 520 | |
| 521 // Decide how to build a call. | |
| 522 // The profile factor is a discount to apply to this site's interp. profile. | |
| 523 CallGenerator* call_generator(ciMethod* call_method, int vtable_index, bool call_is_virtual, JVMState* jvms, bool allow_inline, float profile_factor); | |
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524 bool should_delay_inlining(ciMethod* call_method, JVMState* jvms); |
| 0 | 525 |
| 526 // Report if there were too many traps at a current method and bci. | |
| 527 // Report if a trap was recorded, and/or PerMethodTrapLimit was exceeded. | |
| 528 // If there is no MDO at all, report no trap unless told to assume it. | |
| 529 bool too_many_traps(ciMethod* method, int bci, Deoptimization::DeoptReason reason); | |
| 530 // This version, unspecific to a particular bci, asks if | |
| 531 // PerMethodTrapLimit was exceeded for all inlined methods seen so far. | |
| 532 bool too_many_traps(Deoptimization::DeoptReason reason, | |
| 533 // Privately used parameter for logging: | |
| 534 ciMethodData* logmd = NULL); | |
| 535 // Report if there were too many recompiles at a method and bci. | |
| 536 bool too_many_recompiles(ciMethod* method, int bci, Deoptimization::DeoptReason reason); | |
| 537 | |
| 538 // Parsing, optimization | |
| 539 PhaseGVN* initial_gvn() { return _initial_gvn; } | |
| 540 Unique_Node_List* for_igvn() { return _for_igvn; } | |
| 541 inline void record_for_igvn(Node* n); // Body is after class Unique_Node_List. | |
| 542 void set_initial_gvn(PhaseGVN *gvn) { _initial_gvn = gvn; } | |
| 543 void set_for_igvn(Unique_Node_List *for_igvn) { _for_igvn = for_igvn; } | |
| 544 | |
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545 // Replace n by nn using initial_gvn, calling hash_delete and |
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546 // record_for_igvn as needed. |
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547 void gvn_replace_by(Node* n, Node* nn); |
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548 |
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549 |
| 0 | 550 void identify_useful_nodes(Unique_Node_List &useful); |
| 551 void remove_useless_nodes (Unique_Node_List &useful); | |
| 552 | |
| 553 WarmCallInfo* warm_calls() const { return _warm_calls; } | |
| 554 void set_warm_calls(WarmCallInfo* l) { _warm_calls = l; } | |
| 555 WarmCallInfo* pop_warm_call(); | |
| 556 | |
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557 // Record this CallGenerator for inlining at the end of parsing. |
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558 void add_late_inline(CallGenerator* cg) { _late_inlines.push(cg); } |
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559 |
| 0 | 560 // Matching, CFG layout, allocation, code generation |
| 561 PhaseCFG* cfg() { return _cfg; } | |
| 562 bool select_24_bit_instr() const { return _select_24_bit_instr; } | |
| 563 bool in_24_bit_fp_mode() const { return _in_24_bit_fp_mode; } | |
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564 bool has_java_calls() const { return _java_calls > 0; } |
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565 int java_calls() const { return _java_calls; } |
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566 int inner_loops() const { return _inner_loops; } |
| 0 | 567 Matcher* matcher() { return _matcher; } |
| 568 PhaseRegAlloc* regalloc() { return _regalloc; } | |
| 569 int frame_slots() const { return _frame_slots; } | |
| 570 int frame_size_in_words() const; // frame_slots in units of the polymorphic 'words' | |
| 571 RegMask& FIRST_STACK_mask() { return _FIRST_STACK_mask; } | |
| 572 Arena* indexSet_arena() { return _indexSet_arena; } | |
| 573 void* indexSet_free_block_list() { return _indexSet_free_block_list; } | |
| 574 uint node_bundling_limit() { return _node_bundling_limit; } | |
| 575 Bundle* node_bundling_base() { return _node_bundling_base; } | |
| 576 void set_node_bundling_limit(uint n) { _node_bundling_limit = n; } | |
| 577 void set_node_bundling_base(Bundle* b) { _node_bundling_base = b; } | |
| 578 bool starts_bundle(const Node *n) const; | |
| 579 bool need_stack_bang(int frame_size_in_bytes) const; | |
| 580 bool need_register_stack_bang() const; | |
| 581 | |
| 582 void set_matcher(Matcher* m) { _matcher = m; } | |
| 583 //void set_regalloc(PhaseRegAlloc* ra) { _regalloc = ra; } | |
| 584 void set_indexSet_arena(Arena* a) { _indexSet_arena = a; } | |
| 585 void set_indexSet_free_block_list(void* p) { _indexSet_free_block_list = p; } | |
| 586 | |
| 587 // Remember if this compilation changes hardware mode to 24-bit precision | |
| 588 void set_24_bit_selection_and_mode(bool selection, bool mode) { | |
| 589 _select_24_bit_instr = selection; | |
| 590 _in_24_bit_fp_mode = mode; | |
| 591 } | |
| 592 | |
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593 void set_java_calls(int z) { _java_calls = z; } |
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594 void set_inner_loops(int z) { _inner_loops = z; } |
| 0 | 595 |
| 596 // Instruction bits passed off to the VM | |
| 597 int code_size() { return _method_size; } | |
| 598 CodeBuffer* code_buffer() { return &_code_buffer; } | |
| 599 int first_block_size() { return _first_block_size; } | |
| 600 void set_frame_complete(int off) { _code_offsets.set_value(CodeOffsets::Frame_Complete, off); } | |
| 601 ExceptionHandlerTable* handler_table() { return &_handler_table; } | |
| 602 ImplicitExceptionTable* inc_table() { return &_inc_table; } | |
| 603 OopMapSet* oop_map_set() { return _oop_map_set; } | |
| 604 DebugInformationRecorder* debug_info() { return env()->debug_info(); } | |
| 605 Dependencies* dependencies() { return env()->dependencies(); } | |
| 606 static int CompiledZap_count() { return _CompiledZap_count; } | |
| 607 BufferBlob* scratch_buffer_blob() { return _scratch_buffer_blob; } | |
| 608 void init_scratch_buffer_blob(); | |
| 609 void set_scratch_buffer_blob(BufferBlob* b) { _scratch_buffer_blob = b; } | |
| 610 relocInfo* scratch_locs_memory() { return _scratch_locs_memory; } | |
| 611 void set_scratch_locs_memory(relocInfo* b) { _scratch_locs_memory = b; } | |
| 612 | |
| 613 // emit to scratch blob, report resulting size | |
| 614 uint scratch_emit_size(const Node* n); | |
| 615 | |
| 616 enum ScratchBufferBlob { | |
| 617 MAX_inst_size = 1024, | |
| 618 MAX_locs_size = 128, // number of relocInfo elements | |
| 619 MAX_const_size = 128, | |
| 620 MAX_stubs_size = 128 | |
| 621 }; | |
| 622 | |
| 623 // Major entry point. Given a Scope, compile the associated method. | |
| 624 // For normal compilations, entry_bci is InvocationEntryBci. For on stack | |
| 625 // replacement, entry_bci indicates the bytecode for which to compile a | |
| 626 // continuation. | |
| 627 Compile(ciEnv* ci_env, C2Compiler* compiler, ciMethod* target, | |
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628 int entry_bci, bool subsume_loads, bool do_escape_analysis); |
| 0 | 629 |
| 630 // Second major entry point. From the TypeFunc signature, generate code | |
| 631 // to pass arguments from the Java calling convention to the C calling | |
| 632 // convention. | |
| 633 Compile(ciEnv* ci_env, const TypeFunc *(*gen)(), | |
| 634 address stub_function, const char *stub_name, | |
| 635 int is_fancy_jump, bool pass_tls, | |
| 636 bool save_arg_registers, bool return_pc); | |
| 637 | |
| 638 // From the TypeFunc signature, generate code to pass arguments | |
| 639 // from Compiled calling convention to Interpreter's calling convention | |
| 640 void Generate_Compiled_To_Interpreter_Graph(const TypeFunc *tf, address interpreter_entry); | |
| 641 | |
| 642 // From the TypeFunc signature, generate code to pass arguments | |
| 643 // from Interpreter's calling convention to Compiler's calling convention | |
| 644 void Generate_Interpreter_To_Compiled_Graph(const TypeFunc *tf); | |
| 645 | |
| 646 // Are we compiling a method? | |
| 647 bool has_method() { return method() != NULL; } | |
| 648 | |
| 649 // Maybe print some information about this compile. | |
| 650 void print_compile_messages(); | |
| 651 | |
| 652 // Final graph reshaping, a post-pass after the regular optimizer is done. | |
| 653 bool final_graph_reshaping(); | |
| 654 | |
| 655 // returns true if adr is completely contained in the given alias category | |
| 656 bool must_alias(const TypePtr* adr, int alias_idx); | |
| 657 | |
| 658 // returns true if adr overlaps with the given alias category | |
| 659 bool can_alias(const TypePtr* adr, int alias_idx); | |
| 660 | |
| 661 // Driver for converting compiler's IR into machine code bits | |
| 662 void Output(); | |
| 663 | |
| 664 // Accessors for node bundling info. | |
| 665 Bundle* node_bundling(const Node *n); | |
| 666 bool valid_bundle_info(const Node *n); | |
| 667 | |
| 668 // Schedule and Bundle the instructions | |
| 669 void ScheduleAndBundle(); | |
| 670 | |
| 671 // Build OopMaps for each GC point | |
| 672 void BuildOopMaps(); | |
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673 |
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674 // Append debug info for the node "local" at safepoint node "sfpt" to the |
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675 // "array", May also consult and add to "objs", which describes the |
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676 // scalar-replaced objects. |
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677 void FillLocArray( int idx, MachSafePointNode* sfpt, |
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678 Node *local, GrowableArray<ScopeValue*> *array, |
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679 GrowableArray<ScopeValue*> *objs ); |
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680 |
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681 // If "objs" contains an ObjectValue whose id is "id", returns it, else NULL. |
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682 static ObjectValue* sv_for_node_id(GrowableArray<ScopeValue*> *objs, int id); |
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683 // Requres that "objs" does not contains an ObjectValue whose id matches |
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684 // that of "sv. Appends "sv". |
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685 static void set_sv_for_object_node(GrowableArray<ScopeValue*> *objs, |
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686 ObjectValue* sv ); |
| 0 | 687 |
| 688 // Process an OopMap Element while emitting nodes | |
| 689 void Process_OopMap_Node(MachNode *mach, int code_offset); | |
| 690 | |
| 691 // Write out basic block data to code buffer | |
| 692 void Fill_buffer(); | |
| 693 | |
| 694 // Determine which variable sized branches can be shortened | |
| 695 void Shorten_branches(Label *labels, int& code_size, int& reloc_size, int& stub_size, int& const_size); | |
| 696 | |
| 697 // Compute the size of first NumberOfLoopInstrToAlign instructions | |
| 698 // at the head of a loop. | |
| 699 void compute_loop_first_inst_sizes(); | |
| 700 | |
| 701 // Compute the information for the exception tables | |
| 702 void FillExceptionTables(uint cnt, uint *call_returns, uint *inct_starts, Label *blk_labels); | |
| 703 | |
| 704 // Stack slots that may be unused by the calling convention but must | |
| 705 // otherwise be preserved. On Intel this includes the return address. | |
| 706 // On PowerPC it includes the 4 words holding the old TOC & LR glue. | |
| 707 uint in_preserve_stack_slots(); | |
| 708 | |
| 709 // "Top of Stack" slots that may be unused by the calling convention but must | |
| 710 // otherwise be preserved. | |
| 711 // On Intel these are not necessary and the value can be zero. | |
| 712 // On Sparc this describes the words reserved for storing a register window | |
| 713 // when an interrupt occurs. | |
| 714 static uint out_preserve_stack_slots(); | |
| 715 | |
| 716 // Number of outgoing stack slots killed above the out_preserve_stack_slots | |
| 717 // for calls to C. Supports the var-args backing area for register parms. | |
| 718 uint varargs_C_out_slots_killed() const; | |
| 719 | |
| 720 // Number of Stack Slots consumed by a synchronization entry | |
| 721 int sync_stack_slots() const; | |
| 722 | |
| 723 // Compute the name of old_SP. See <arch>.ad for frame layout. | |
| 724 OptoReg::Name compute_old_SP(); | |
| 725 | |
| 726 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 727 static bool is_node_getting_a_safepoint(Node*); | |
| 728 void Insert_zap_nodes(); | |
| 729 Node* call_zap_node(MachSafePointNode* n, int block_no); | |
| 730 #endif | |
| 731 | |
| 732 private: | |
| 733 // Phase control: | |
| 734 void Init(int aliaslevel); // Prepare for a single compilation | |
| 735 int Inline_Warm(); // Find more inlining work. | |
| 736 void Finish_Warm(); // Give up on further inlines. | |
| 737 void Optimize(); // Given a graph, optimize it | |
| 738 void Code_Gen(); // Generate code from a graph | |
| 739 | |
| 740 // Management of the AliasType table. | |
| 741 void grow_alias_types(); | |
| 742 AliasCacheEntry* probe_alias_cache(const TypePtr* adr_type); | |
| 743 const TypePtr *flatten_alias_type(const TypePtr* adr_type) const; | |
| 744 AliasType* find_alias_type(const TypePtr* adr_type, bool no_create); | |
| 745 | |
| 746 void verify_top(Node*) const PRODUCT_RETURN; | |
| 747 | |
| 748 // Intrinsic setup. | |
| 749 void register_library_intrinsics(); // initializer | |
| 750 CallGenerator* make_vm_intrinsic(ciMethod* m, bool is_virtual); // constructor | |
| 751 int intrinsic_insertion_index(ciMethod* m, bool is_virtual); // helper | |
| 752 CallGenerator* find_intrinsic(ciMethod* m, bool is_virtual); // query fn | |
| 753 void register_intrinsic(CallGenerator* cg); // update fn | |
| 754 | |
| 755 #ifndef PRODUCT | |
| 756 static juint _intrinsic_hist_count[vmIntrinsics::ID_LIMIT]; | |
| 757 static jubyte _intrinsic_hist_flags[vmIntrinsics::ID_LIMIT]; | |
| 758 #endif | |
| 759 | |
| 760 public: | |
| 761 | |
| 762 // Note: Histogram array size is about 1 Kb. | |
| 763 enum { // flag bits: | |
| 764 _intrinsic_worked = 1, // succeeded at least once | |
| 765 _intrinsic_failed = 2, // tried it but it failed | |
| 766 _intrinsic_disabled = 4, // was requested but disabled (e.g., -XX:-InlineUnsafeOps) | |
| 767 _intrinsic_virtual = 8, // was seen in the virtual form (rare) | |
| 768 _intrinsic_both = 16 // was seen in the non-virtual form (usual) | |
| 769 }; | |
| 770 // Update histogram. Return boolean if this is a first-time occurrence. | |
| 771 static bool gather_intrinsic_statistics(vmIntrinsics::ID id, | |
| 772 bool is_virtual, int flags) PRODUCT_RETURN0; | |
| 773 static void print_intrinsic_statistics() PRODUCT_RETURN; | |
| 774 | |
| 775 // Graph verification code | |
| 776 // Walk the node list, verifying that there is a one-to-one | |
| 777 // correspondence between Use-Def edges and Def-Use edges | |
| 778 // The option no_dead_code enables stronger checks that the | |
| 779 // graph is strongly connected from root in both directions. | |
| 780 void verify_graph_edges(bool no_dead_code = false) PRODUCT_RETURN; | |
| 781 | |
| 782 // Print bytecodes, including the scope inlining tree | |
| 783 void print_codes(); | |
| 784 | |
| 785 // End-of-run dumps. | |
| 786 static void print_statistics() PRODUCT_RETURN; | |
| 787 | |
| 788 // Dump formatted assembly | |
| 789 void dump_asm(int *pcs = NULL, uint pc_limit = 0) PRODUCT_RETURN; | |
| 790 void dump_pc(int *pcs, int pc_limit, Node *n); | |
| 791 | |
| 792 // Verify ADLC assumptions during startup | |
| 793 static void adlc_verification() PRODUCT_RETURN; | |
| 794 | |
| 795 // Definitions of pd methods | |
| 796 static void pd_compiler2_init(); | |
| 797 }; | |
| 1972 | 798 |
| 799 #endif // SHARE_VM_OPTO_COMPILE_HPP |