Mercurial > hg > truffle
annotate src/share/vm/opto/machnode.hpp @ 17780:606acabe7b5c
8031320: Use Intel RTM instructions for locks
Summary: Use RTM for inflated locks and stack locks.
Reviewed-by: iveresov, twisti, roland, dcubed
author | kvn |
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date | Thu, 20 Mar 2014 17:49:27 -0700 |
parents | 9758d9f36299 |
children | 62c54fcc0a35 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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_MACHNODE_HPP |
26 #define SHARE_VM_OPTO_MACHNODE_HPP | |
27 | |
28 #include "opto/callnode.hpp" | |
29 #include "opto/matcher.hpp" | |
30 #include "opto/multnode.hpp" | |
31 #include "opto/node.hpp" | |
32 #include "opto/regmask.hpp" | |
33 | |
0 | 34 class BufferBlob; |
35 class CodeBuffer; | |
36 class JVMState; | |
37 class MachCallDynamicJavaNode; | |
38 class MachCallJavaNode; | |
39 class MachCallLeafNode; | |
40 class MachCallNode; | |
41 class MachCallRuntimeNode; | |
42 class MachCallStaticJavaNode; | |
43 class MachEpilogNode; | |
44 class MachIfNode; | |
45 class MachNullCheckNode; | |
46 class MachOper; | |
47 class MachProjNode; | |
48 class MachPrologNode; | |
49 class MachReturnNode; | |
50 class MachSafePointNode; | |
51 class MachSpillCopyNode; | |
52 class Matcher; | |
53 class PhaseRegAlloc; | |
54 class RegMask; | |
17780 | 55 class RTMLockingCounters; |
0 | 56 class State; |
57 | |
58 //---------------------------MachOper------------------------------------------ | |
59 class MachOper : public ResourceObj { | |
60 public: | |
61 // Allocate right next to the MachNodes in the same arena | |
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62 void *operator new( size_t x, Compile* C ) throw() { return C->node_arena()->Amalloc_D(x); } |
0 | 63 |
64 // Opcode | |
65 virtual uint opcode() const = 0; | |
66 | |
67 // Number of input edges. | |
68 // Generally at least 1 | |
69 virtual uint num_edges() const { return 1; } | |
70 // Array of Register masks | |
71 virtual const RegMask *in_RegMask(int index) const; | |
72 | |
73 // Methods to output the encoding of the operand | |
74 | |
75 // Negate conditional branches. Error for non-branch Nodes | |
76 virtual void negate(); | |
77 | |
78 // Return the value requested | |
79 // result register lookup, corresponding to int_format | |
80 virtual int reg(PhaseRegAlloc *ra_, const Node *node) const; | |
81 // input register lookup, corresponding to ext_format | |
82 virtual int reg(PhaseRegAlloc *ra_, const Node *node, int idx) const; | |
83 | |
84 // helpers for MacroAssembler generation from ADLC | |
85 Register as_Register(PhaseRegAlloc *ra_, const Node *node) const { | |
86 return ::as_Register(reg(ra_, node)); | |
87 } | |
88 Register as_Register(PhaseRegAlloc *ra_, const Node *node, int idx) const { | |
89 return ::as_Register(reg(ra_, node, idx)); | |
90 } | |
91 FloatRegister as_FloatRegister(PhaseRegAlloc *ra_, const Node *node) const { | |
92 return ::as_FloatRegister(reg(ra_, node)); | |
93 } | |
94 FloatRegister as_FloatRegister(PhaseRegAlloc *ra_, const Node *node, int idx) const { | |
95 return ::as_FloatRegister(reg(ra_, node, idx)); | |
96 } | |
97 | |
98 #if defined(IA32) || defined(AMD64) | |
99 XMMRegister as_XMMRegister(PhaseRegAlloc *ra_, const Node *node) const { | |
100 return ::as_XMMRegister(reg(ra_, node)); | |
101 } | |
102 XMMRegister as_XMMRegister(PhaseRegAlloc *ra_, const Node *node, int idx) const { | |
103 return ::as_XMMRegister(reg(ra_, node, idx)); | |
104 } | |
105 #endif | |
106 | |
107 virtual intptr_t constant() const; | |
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108 virtual relocInfo::relocType constant_reloc() const; |
0 | 109 virtual jdouble constantD() const; |
110 virtual jfloat constantF() const; | |
111 virtual jlong constantL() const; | |
112 virtual TypeOopPtr *oop() const; | |
113 virtual int ccode() const; | |
114 // A zero, default, indicates this value is not needed. | |
115 // May need to lookup the base register, as done in int_ and ext_format | |
116 virtual int base (PhaseRegAlloc *ra_, const Node *node, int idx) const; | |
117 virtual int index(PhaseRegAlloc *ra_, const Node *node, int idx) const; | |
118 virtual int scale() const; | |
119 // Parameters needed to support MEMORY_INTERFACE access to stackSlot | |
120 virtual int disp (PhaseRegAlloc *ra_, const Node *node, int idx) const; | |
121 // Check for PC-Relative displacement | |
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122 virtual relocInfo::relocType disp_reloc() const; |
0 | 123 virtual int constant_disp() const; // usu. 0, may return Type::OffsetBot |
124 virtual int base_position() const; // base edge position, or -1 | |
125 virtual int index_position() const; // index edge position, or -1 | |
126 | |
127 // Access the TypeKlassPtr of operands with a base==RegI and disp==RegP | |
128 // Only returns non-null value for i486.ad's indOffset32X | |
129 virtual const TypePtr *disp_as_type() const { return NULL; } | |
130 | |
131 // Return the label | |
132 virtual Label *label() const; | |
133 | |
134 // Return the method's address | |
135 virtual intptr_t method() const; | |
136 | |
137 // Hash and compare over operands are currently identical | |
138 virtual uint hash() const; | |
139 virtual uint cmp( const MachOper &oper ) const; | |
140 | |
141 // Virtual clone, since I do not know how big the MachOper is. | |
142 virtual MachOper *clone(Compile* C) const = 0; | |
143 | |
144 // Return ideal Type from simple operands. Fail for complex operands. | |
145 virtual const Type *type() const; | |
146 | |
147 // Set an integer offset if we have one, or error otherwise | |
148 virtual void set_con( jint c0 ) { ShouldNotReachHere(); } | |
149 | |
150 #ifndef PRODUCT | |
151 // Return name of operand | |
152 virtual const char *Name() const { return "???";} | |
153 | |
154 // Methods to output the text version of the operand | |
155 virtual void int_format(PhaseRegAlloc *,const MachNode *node, outputStream *st) const = 0; | |
156 virtual void ext_format(PhaseRegAlloc *,const MachNode *node,int idx, outputStream *st) const=0; | |
157 | |
158 virtual void dump_spec(outputStream *st) const; // Print per-operand info | |
159 #endif | |
160 }; | |
161 | |
162 //------------------------------MachNode--------------------------------------- | |
163 // Base type for all machine specific nodes. All node classes generated by the | |
164 // ADLC inherit from this class. | |
165 class MachNode : public Node { | |
166 public: | |
167 MachNode() : Node((uint)0), _num_opnds(0), _opnds(NULL) { | |
168 init_class_id(Class_Mach); | |
169 } | |
170 // Required boilerplate | |
171 virtual uint size_of() const { return sizeof(MachNode); } | |
172 virtual int Opcode() const; // Always equal to MachNode | |
173 virtual uint rule() const = 0; // Machine-specific opcode | |
174 // Number of inputs which come before the first operand. | |
175 // Generally at least 1, to skip the Control input | |
176 virtual uint oper_input_base() const { return 1; } | |
177 | |
178 // Copy inputs and operands to new node of instruction. | |
179 // Called from cisc_version() and short_branch_version(). | |
180 // !!!! The method's body is defined in ad_<arch>.cpp file. | |
181 void fill_new_machnode(MachNode *n, Compile* C) const; | |
182 | |
183 // Return an equivalent instruction using memory for cisc_operand position | |
184 virtual MachNode *cisc_version(int offset, Compile* C); | |
185 // Modify this instruction's register mask to use stack version for cisc_operand | |
186 virtual void use_cisc_RegMask(); | |
187 | |
188 // Support for short branches | |
189 bool may_be_short_branch() const { return (flags() & Flag_may_be_short_branch) != 0; } | |
190 | |
3851 | 191 // Avoid back to back some instructions on some CPUs. |
192 bool avoid_back_to_back() const { return (flags() & Flag_avoid_back_to_back) != 0; } | |
193 | |
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194 // instruction implemented with a call |
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195 bool has_call() const { return (flags() & Flag_has_call) != 0; } |
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196 |
0 | 197 // First index in _in[] corresponding to operand, or -1 if there is none |
198 int operand_index(uint operand) const; | |
199 | |
200 // Register class input is expected in | |
201 virtual const RegMask &in_RegMask(uint) const; | |
202 | |
203 // cisc-spillable instructions redefine for use by in_RegMask | |
204 virtual const RegMask *cisc_RegMask() const { return NULL; } | |
205 | |
206 // If this instruction is a 2-address instruction, then return the | |
207 // index of the input which must match the output. Not nessecary | |
208 // for instructions which bind the input and output register to the | |
209 // same singleton regiser (e.g., Intel IDIV which binds AX to be | |
210 // both an input and an output). It is nessecary when the input and | |
211 // output have choices - but they must use the same choice. | |
212 virtual uint two_adr( ) const { return 0; } | |
213 | |
214 // Array of complex operand pointers. Each corresponds to zero or | |
215 // more leafs. Must be set by MachNode constructor to point to an | |
216 // internal array of MachOpers. The MachOper array is sized by | |
217 // specific MachNodes described in the ADL. | |
218 uint _num_opnds; | |
219 MachOper **_opnds; | |
220 uint num_opnds() const { return _num_opnds; } | |
221 | |
222 // Emit bytes into cbuf | |
223 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
224 // Size of instruction in bytes | |
225 virtual uint size(PhaseRegAlloc *ra_) const; | |
226 // Helper function that computes size by emitting code | |
227 virtual uint emit_size(PhaseRegAlloc *ra_) const; | |
228 | |
229 // Return the alignment required (in units of relocInfo::addr_unit()) | |
230 // for this instruction (must be a power of 2) | |
231 virtual int alignment_required() const { return 1; } | |
232 | |
233 // Return the padding (in bytes) to be emitted before this | |
234 // instruction to properly align it. | |
235 virtual int compute_padding(int current_offset) const { return 0; } | |
236 | |
237 // Return number of relocatable values contained in this instruction | |
238 virtual int reloc() const { return 0; } | |
239 | |
240 // Hash and compare over operands. Used to do GVN on machine Nodes. | |
241 virtual uint hash() const; | |
242 virtual uint cmp( const Node &n ) const; | |
243 | |
244 // Expand method for MachNode, replaces nodes representing pseudo | |
245 // instructions with a set of nodes which represent real machine | |
246 // instructions and compute the same value. | |
1203 | 247 virtual MachNode *Expand( State *, Node_List &proj_list, Node* mem ) { return this; } |
0 | 248 |
249 // Bottom_type call; value comes from operand0 | |
250 virtual const class Type *bottom_type() const { return _opnds[0]->type(); } | |
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251 virtual uint ideal_reg() const { const Type *t = _opnds[0]->type(); return t == TypeInt::CC ? Op_RegFlags : t->ideal_reg(); } |
0 | 252 |
253 // If this is a memory op, return the base pointer and fixed offset. | |
254 // If there are no such, return NULL. If there are multiple addresses | |
255 // or the address is indeterminate (rare cases) then return (Node*)-1, | |
256 // which serves as node bottom. | |
257 // If the offset is not statically determined, set it to Type::OffsetBot. | |
258 // This method is free to ignore stack slots if that helps. | |
259 #define TYPE_PTR_SENTINAL ((const TypePtr*)-1) | |
260 // Passing TYPE_PTR_SENTINAL as adr_type asks for computation of the adr_type if possible | |
261 const Node* get_base_and_disp(intptr_t &offset, const TypePtr* &adr_type) const; | |
262 | |
263 // Helper for get_base_and_disp: find the base and index input nodes. | |
264 // Returns the MachOper as determined by memory_operand(), for use, if | |
265 // needed by the caller. If (MachOper *)-1 is returned, base and index | |
266 // are set to NodeSentinel. If (MachOper *) NULL is returned, base and | |
267 // index are set to NULL. | |
268 const MachOper* memory_inputs(Node* &base, Node* &index) const; | |
269 | |
270 // Helper for memory_inputs: Which operand carries the necessary info? | |
271 // By default, returns NULL, which means there is no such operand. | |
272 // If it returns (MachOper*)-1, this means there are multiple memories. | |
273 virtual const MachOper* memory_operand() const { return NULL; } | |
274 | |
275 // Call "get_base_and_disp" to decide which category of memory is used here. | |
276 virtual const class TypePtr *adr_type() const; | |
277 | |
278 // Apply peephole rule(s) to this instruction | |
279 virtual MachNode *peephole( Block *block, int block_index, PhaseRegAlloc *ra_, int &deleted, Compile* C ); | |
280 | |
281 // Top-level ideal Opcode matched | |
282 virtual int ideal_Opcode() const { return Op_Node; } | |
283 | |
284 // Adds the label for the case | |
285 virtual void add_case_label( int switch_val, Label* blockLabel); | |
286 | |
287 // Set the absolute address for methods | |
288 virtual void method_set( intptr_t addr ); | |
289 | |
290 // Should we clone rather than spill this instruction? | |
291 bool rematerialize() const; | |
292 | |
293 // Get the pipeline info | |
294 static const Pipeline *pipeline_class(); | |
295 virtual const Pipeline *pipeline() const; | |
296 | |
297 #ifndef PRODUCT | |
298 virtual const char *Name() const = 0; // Machine-specific name | |
299 virtual void dump_spec(outputStream *st) const; // Print per-node info | |
300 void dump_format(PhaseRegAlloc *ra, outputStream *st) const; // access to virtual | |
301 #endif | |
302 }; | |
303 | |
304 //------------------------------MachIdealNode---------------------------- | |
305 // Machine specific versions of nodes that must be defined by user. | |
306 // These are not converted by matcher from ideal nodes to machine nodes | |
307 // but are inserted into the code by the compiler. | |
308 class MachIdealNode : public MachNode { | |
309 public: | |
310 MachIdealNode( ) {} | |
311 | |
312 // Define the following defaults for non-matched machine nodes | |
313 virtual uint oper_input_base() const { return 0; } | |
314 virtual uint rule() const { return 9999999; } | |
315 virtual const class Type *bottom_type() const { return _opnds == NULL ? Type::CONTROL : MachNode::bottom_type(); } | |
316 }; | |
317 | |
318 //------------------------------MachTypeNode---------------------------- | |
319 // Machine Nodes that need to retain a known Type. | |
320 class MachTypeNode : public MachNode { | |
321 virtual uint size_of() const { return sizeof(*this); } // Size is bigger | |
322 public: | |
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323 MachTypeNode( ) {} |
0 | 324 const Type *_bottom_type; |
325 | |
326 virtual const class Type *bottom_type() const { return _bottom_type; } | |
327 #ifndef PRODUCT | |
328 virtual void dump_spec(outputStream *st) const; | |
329 #endif | |
330 }; | |
331 | |
332 //------------------------------MachBreakpointNode---------------------------- | |
333 // Machine breakpoint or interrupt Node | |
334 class MachBreakpointNode : public MachIdealNode { | |
335 public: | |
336 MachBreakpointNode( ) {} | |
337 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
338 virtual uint size(PhaseRegAlloc *ra_) const; | |
339 | |
340 #ifndef PRODUCT | |
341 virtual const char *Name() const { return "Breakpoint"; } | |
342 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
343 #endif | |
344 }; | |
345 | |
2008 | 346 //------------------------------MachConstantBaseNode-------------------------- |
347 // Machine node that represents the base address of the constant table. | |
348 class MachConstantBaseNode : public MachIdealNode { | |
349 public: | |
350 static const RegMask& _out_RegMask; // We need the out_RegMask statically in MachConstantNode::in_RegMask(). | |
351 | |
352 public: | |
353 MachConstantBaseNode() : MachIdealNode() { | |
354 init_class_id(Class_MachConstantBase); | |
355 } | |
356 virtual const class Type* bottom_type() const { return TypeRawPtr::NOTNULL; } | |
357 virtual uint ideal_reg() const { return Op_RegP; } | |
358 virtual uint oper_input_base() const { return 1; } | |
359 | |
360 virtual void emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const; | |
361 virtual uint size(PhaseRegAlloc* ra_) const; | |
362 virtual bool pinned() const { return UseRDPCForConstantTableBase; } | |
363 | |
364 static const RegMask& static_out_RegMask() { return _out_RegMask; } | |
365 virtual const RegMask& out_RegMask() const { return static_out_RegMask(); } | |
366 | |
367 #ifndef PRODUCT | |
368 virtual const char* Name() const { return "MachConstantBaseNode"; } | |
369 virtual void format(PhaseRegAlloc*, outputStream* st) const; | |
370 #endif | |
371 }; | |
372 | |
373 //------------------------------MachConstantNode------------------------------- | |
374 // Machine node that holds a constant which is stored in the constant table. | |
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375 class MachConstantNode : public MachTypeNode { |
2008 | 376 protected: |
377 Compile::Constant _constant; // This node's constant. | |
378 | |
379 public: | |
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380 MachConstantNode() : MachTypeNode() { |
2008 | 381 init_class_id(Class_MachConstant); |
382 } | |
383 | |
384 virtual void eval_constant(Compile* C) { | |
385 #ifdef ASSERT | |
386 tty->print("missing MachConstantNode eval_constant function: "); | |
387 dump(); | |
388 #endif | |
389 ShouldNotCallThis(); | |
390 } | |
391 | |
392 virtual const RegMask &in_RegMask(uint idx) const { | |
393 if (idx == mach_constant_base_node_input()) | |
394 return MachConstantBaseNode::static_out_RegMask(); | |
395 return MachNode::in_RegMask(idx); | |
396 } | |
397 | |
398 // Input edge of MachConstantBaseNode. | |
399 uint mach_constant_base_node_input() const { return req() - 1; } | |
400 | |
401 int constant_offset(); | |
402 int constant_offset() const { return ((MachConstantNode*) this)->constant_offset(); } | |
403 }; | |
404 | |
0 | 405 //------------------------------MachUEPNode----------------------------------- |
406 // Machine Unvalidated Entry Point Node | |
407 class MachUEPNode : public MachIdealNode { | |
408 public: | |
409 MachUEPNode( ) {} | |
410 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
411 virtual uint size(PhaseRegAlloc *ra_) const; | |
412 | |
413 #ifndef PRODUCT | |
414 virtual const char *Name() const { return "Unvalidated-Entry-Point"; } | |
415 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
416 #endif | |
417 }; | |
418 | |
419 //------------------------------MachPrologNode-------------------------------- | |
420 // Machine function Prolog Node | |
421 class MachPrologNode : public MachIdealNode { | |
422 public: | |
423 MachPrologNode( ) {} | |
424 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
425 virtual uint size(PhaseRegAlloc *ra_) const; | |
426 virtual int reloc() const; | |
427 | |
428 #ifndef PRODUCT | |
429 virtual const char *Name() const { return "Prolog"; } | |
430 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
431 #endif | |
432 }; | |
433 | |
434 //------------------------------MachEpilogNode-------------------------------- | |
435 // Machine function Epilog Node | |
436 class MachEpilogNode : public MachIdealNode { | |
437 public: | |
438 MachEpilogNode(bool do_poll = false) : _do_polling(do_poll) {} | |
439 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
440 virtual uint size(PhaseRegAlloc *ra_) const; | |
441 virtual int reloc() const; | |
442 virtual const Pipeline *pipeline() const; | |
443 | |
444 private: | |
445 bool _do_polling; | |
446 | |
447 public: | |
448 bool do_polling() const { return _do_polling; } | |
449 | |
450 // Offset of safepoint from the beginning of the node | |
451 int safepoint_offset() const; | |
452 | |
453 #ifndef PRODUCT | |
454 virtual const char *Name() const { return "Epilog"; } | |
455 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
456 #endif | |
457 }; | |
458 | |
459 //------------------------------MachNopNode----------------------------------- | |
460 // Machine function Nop Node | |
461 class MachNopNode : public MachIdealNode { | |
462 private: | |
463 int _count; | |
464 public: | |
465 MachNopNode( ) : _count(1) {} | |
466 MachNopNode( int count ) : _count(count) {} | |
467 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
468 virtual uint size(PhaseRegAlloc *ra_) const; | |
469 | |
470 virtual const class Type *bottom_type() const { return Type::CONTROL; } | |
471 | |
472 virtual int ideal_Opcode() const { return Op_Con; } // bogus; see output.cpp | |
473 virtual const Pipeline *pipeline() const; | |
474 #ifndef PRODUCT | |
475 virtual const char *Name() const { return "Nop"; } | |
476 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
477 virtual void dump_spec(outputStream *st) const { } // No per-operand info | |
478 #endif | |
479 }; | |
480 | |
481 //------------------------------MachSpillCopyNode------------------------------ | |
482 // Machine SpillCopy Node. Copies 1 or 2 words from any location to any | |
483 // location (stack or register). | |
484 class MachSpillCopyNode : public MachIdealNode { | |
485 const RegMask *_in; // RegMask for input | |
486 const RegMask *_out; // RegMask for output | |
487 const Type *_type; | |
488 public: | |
489 MachSpillCopyNode( Node *n, const RegMask &in, const RegMask &out ) : | |
490 MachIdealNode(), _in(&in), _out(&out), _type(n->bottom_type()) { | |
491 init_class_id(Class_MachSpillCopy); | |
492 init_flags(Flag_is_Copy); | |
493 add_req(NULL); | |
494 add_req(n); | |
495 } | |
496 virtual uint size_of() const { return sizeof(*this); } | |
497 void set_out_RegMask(const RegMask &out) { _out = &out; } | |
498 void set_in_RegMask(const RegMask &in) { _in = ∈ } | |
499 virtual const RegMask &out_RegMask() const { return *_out; } | |
500 virtual const RegMask &in_RegMask(uint) const { return *_in; } | |
501 virtual const class Type *bottom_type() const { return _type; } | |
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502 virtual uint ideal_reg() const { return _type->ideal_reg(); } |
0 | 503 virtual uint oper_input_base() const { return 1; } |
504 uint implementation( CodeBuffer *cbuf, PhaseRegAlloc *ra_, bool do_size, outputStream* st ) const; | |
505 | |
506 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
507 virtual uint size(PhaseRegAlloc *ra_) const; | |
508 | |
509 #ifndef PRODUCT | |
510 virtual const char *Name() const { return "MachSpillCopy"; } | |
511 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
512 #endif | |
513 }; | |
514 | |
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515 //------------------------------MachBranchNode-------------------------------- |
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516 // Abstract machine branch Node |
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517 class MachBranchNode : public MachIdealNode { |
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518 public: |
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519 MachBranchNode() : MachIdealNode() { |
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520 init_class_id(Class_MachBranch); |
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521 } |
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522 virtual void label_set(Label* label, uint block_num) = 0; |
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523 virtual void save_label(Label** label, uint* block_num) = 0; |
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524 |
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525 // Support for short branches |
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526 virtual MachNode *short_branch_version(Compile* C) { return NULL; } |
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527 |
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528 virtual bool pinned() const { return true; }; |
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529 }; |
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530 |
0 | 531 //------------------------------MachNullChkNode-------------------------------- |
532 // Machine-dependent null-pointer-check Node. Points a real MachNode that is | |
533 // also some kind of memory op. Turns the indicated MachNode into a | |
534 // conditional branch with good latency on the ptr-not-null path and awful | |
535 // latency on the pointer-is-null path. | |
536 | |
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537 class MachNullCheckNode : public MachBranchNode { |
0 | 538 public: |
539 const uint _vidx; // Index of memop being tested | |
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540 MachNullCheckNode( Node *ctrl, Node *memop, uint vidx ) : MachBranchNode(), _vidx(vidx) { |
0 | 541 init_class_id(Class_MachNullCheck); |
542 add_req(ctrl); | |
543 add_req(memop); | |
544 } | |
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545 virtual uint size_of() const { return sizeof(*this); } |
0 | 546 |
547 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
3839 | 548 virtual void label_set(Label* label, uint block_num); |
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549 virtual void save_label(Label** label, uint* block_num); |
0 | 550 virtual void negate() { } |
551 virtual const class Type *bottom_type() const { return TypeTuple::IFBOTH; } | |
552 virtual uint ideal_reg() const { return NotAMachineReg; } | |
553 virtual const RegMask &in_RegMask(uint) const; | |
554 virtual const RegMask &out_RegMask() const { return RegMask::Empty; } | |
555 #ifndef PRODUCT | |
556 virtual const char *Name() const { return "NullCheck"; } | |
557 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
558 #endif | |
559 }; | |
560 | |
561 //------------------------------MachProjNode---------------------------------- | |
562 // Machine-dependent Ideal projections (how is that for an oxymoron). Really | |
563 // just MachNodes made by the Ideal world that replicate simple projections | |
564 // but with machine-dependent input & output register masks. Generally | |
565 // produced as part of calling conventions. Normally I make MachNodes as part | |
566 // of the Matcher process, but the Matcher is ill suited to issues involving | |
567 // frame handling, so frame handling is all done in the Ideal world with | |
568 // occasional callbacks to the machine model for important info. | |
569 class MachProjNode : public ProjNode { | |
570 public: | |
3842 | 571 MachProjNode( Node *multi, uint con, const RegMask &out, uint ideal_reg ) : ProjNode(multi,con), _rout(out), _ideal_reg(ideal_reg) { |
572 init_class_id(Class_MachProj); | |
573 } | |
0 | 574 RegMask _rout; |
575 const uint _ideal_reg; | |
576 enum projType { | |
577 unmatched_proj = 0, // Projs for Control, I/O, memory not matched | |
578 fat_proj = 999 // Projs killing many regs, defined by _rout | |
579 }; | |
580 virtual int Opcode() const; | |
581 virtual const Type *bottom_type() const; | |
582 virtual const TypePtr *adr_type() const; | |
583 virtual const RegMask &in_RegMask(uint) const { return RegMask::Empty; } | |
584 virtual const RegMask &out_RegMask() const { return _rout; } | |
585 virtual uint ideal_reg() const { return _ideal_reg; } | |
586 // Need size_of() for virtual ProjNode::clone() | |
587 virtual uint size_of() const { return sizeof(MachProjNode); } | |
588 #ifndef PRODUCT | |
589 virtual void dump_spec(outputStream *st) const; | |
590 #endif | |
591 }; | |
592 | |
593 //------------------------------MachIfNode------------------------------------- | |
594 // Machine-specific versions of IfNodes | |
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595 class MachIfNode : public MachBranchNode { |
0 | 596 virtual uint size_of() const { return sizeof(*this); } // Size is bigger |
597 public: | |
598 float _prob; // Probability branch goes either way | |
599 float _fcnt; // Frequency counter | |
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600 MachIfNode() : MachBranchNode() { |
0 | 601 init_class_id(Class_MachIf); |
602 } | |
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603 // Negate conditional branches. |
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604 virtual void negate() = 0; |
0 | 605 #ifndef PRODUCT |
606 virtual void dump_spec(outputStream *st) const; | |
607 #endif | |
608 }; | |
609 | |
3842 | 610 //------------------------------MachGotoNode----------------------------------- |
611 // Machine-specific versions of GotoNodes | |
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612 class MachGotoNode : public MachBranchNode { |
3842 | 613 public: |
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614 MachGotoNode() : MachBranchNode() { |
3842 | 615 init_class_id(Class_MachGoto); |
616 } | |
617 }; | |
618 | |
0 | 619 //------------------------------MachFastLockNode------------------------------------- |
620 // Machine-specific versions of FastLockNodes | |
621 class MachFastLockNode : public MachNode { | |
622 virtual uint size_of() const { return sizeof(*this); } // Size is bigger | |
623 public: | |
17780 | 624 BiasedLockingCounters* _counters; |
625 RTMLockingCounters* _rtm_counters; // RTM lock counters for inflated locks | |
626 RTMLockingCounters* _stack_rtm_counters; // RTM lock counters for stack locks | |
0 | 627 MachFastLockNode() : MachNode() {} |
628 }; | |
629 | |
630 //------------------------------MachReturnNode-------------------------------- | |
631 // Machine-specific versions of subroutine returns | |
632 class MachReturnNode : public MachNode { | |
633 virtual uint size_of() const; // Size is bigger | |
634 public: | |
635 RegMask *_in_rms; // Input register masks, set during allocation | |
636 ReallocMark _nesting; // assertion check for reallocations | |
637 const TypePtr* _adr_type; // memory effects of call or return | |
638 MachReturnNode() : MachNode() { | |
639 init_class_id(Class_MachReturn); | |
640 _adr_type = TypePtr::BOTTOM; // the default: all of memory | |
641 } | |
642 | |
643 void set_adr_type(const TypePtr* atp) { _adr_type = atp; } | |
644 | |
645 virtual const RegMask &in_RegMask(uint) const; | |
646 virtual bool pinned() const { return true; }; | |
647 virtual const TypePtr *adr_type() const; | |
648 }; | |
649 | |
650 //------------------------------MachSafePointNode----------------------------- | |
651 // Machine-specific versions of safepoints | |
652 class MachSafePointNode : public MachReturnNode { | |
653 public: | |
654 OopMap* _oop_map; // Array of OopMap info (8-bit char) for GC | |
655 JVMState* _jvms; // Pointer to list of JVM State Objects | |
656 uint _jvmadj; // Extra delta to jvms indexes (mach. args) | |
657 OopMap* oop_map() const { return _oop_map; } | |
658 void set_oop_map(OopMap* om) { _oop_map = om; } | |
659 | |
660 MachSafePointNode() : MachReturnNode(), _oop_map(NULL), _jvms(NULL), _jvmadj(0) { | |
661 init_class_id(Class_MachSafePoint); | |
662 } | |
663 | |
664 virtual JVMState* jvms() const { return _jvms; } | |
665 void set_jvms(JVMState* s) { | |
666 _jvms = s; | |
667 } | |
668 virtual const Type *bottom_type() const; | |
669 | |
670 virtual const RegMask &in_RegMask(uint) const; | |
671 | |
672 // Functionality from old debug nodes | |
673 Node *returnadr() const { return in(TypeFunc::ReturnAdr); } | |
674 Node *frameptr () const { return in(TypeFunc::FramePtr); } | |
675 | |
676 Node *local(const JVMState* jvms, uint idx) const { | |
677 assert(verify_jvms(jvms), "jvms must match"); | |
678 return in(_jvmadj + jvms->locoff() + idx); | |
679 } | |
680 Node *stack(const JVMState* jvms, uint idx) const { | |
681 assert(verify_jvms(jvms), "jvms must match"); | |
682 return in(_jvmadj + jvms->stkoff() + idx); | |
683 } | |
684 Node *monitor_obj(const JVMState* jvms, uint idx) const { | |
685 assert(verify_jvms(jvms), "jvms must match"); | |
686 return in(_jvmadj + jvms->monitor_obj_offset(idx)); | |
687 } | |
688 Node *monitor_box(const JVMState* jvms, uint idx) const { | |
689 assert(verify_jvms(jvms), "jvms must match"); | |
690 return in(_jvmadj + jvms->monitor_box_offset(idx)); | |
691 } | |
692 void set_local(const JVMState* jvms, uint idx, Node *c) { | |
693 assert(verify_jvms(jvms), "jvms must match"); | |
694 set_req(_jvmadj + jvms->locoff() + idx, c); | |
695 } | |
696 void set_stack(const JVMState* jvms, uint idx, Node *c) { | |
697 assert(verify_jvms(jvms), "jvms must match"); | |
698 set_req(_jvmadj + jvms->stkoff() + idx, c); | |
699 } | |
700 void set_monitor(const JVMState* jvms, uint idx, Node *c) { | |
701 assert(verify_jvms(jvms), "jvms must match"); | |
702 set_req(_jvmadj + jvms->monoff() + idx, c); | |
703 } | |
704 }; | |
705 | |
706 //------------------------------MachCallNode---------------------------------- | |
707 // Machine-specific versions of subroutine calls | |
708 class MachCallNode : public MachSafePointNode { | |
709 protected: | |
710 virtual uint hash() const { return NO_HASH; } // CFG nodes do not hash | |
711 virtual uint cmp( const Node &n ) const; | |
712 virtual uint size_of() const = 0; // Size is bigger | |
713 public: | |
714 const TypeFunc *_tf; // Function type | |
715 address _entry_point; // Address of the method being called | |
716 float _cnt; // Estimate of number of times called | |
717 uint _argsize; // Size of argument block on stack | |
718 | |
719 const TypeFunc* tf() const { return _tf; } | |
720 const address entry_point() const { return _entry_point; } | |
721 const float cnt() const { return _cnt; } | |
722 uint argsize() const { return _argsize; } | |
723 | |
724 void set_tf(const TypeFunc* tf) { _tf = tf; } | |
725 void set_entry_point(address p) { _entry_point = p; } | |
726 void set_cnt(float c) { _cnt = c; } | |
727 void set_argsize(int s) { _argsize = s; } | |
728 | |
729 MachCallNode() : MachSafePointNode() { | |
730 init_class_id(Class_MachCall); | |
731 } | |
732 | |
733 virtual const Type *bottom_type() const; | |
734 virtual bool pinned() const { return false; } | |
735 virtual const Type *Value( PhaseTransform *phase ) const; | |
736 virtual const RegMask &in_RegMask(uint) const; | |
737 virtual int ret_addr_offset() { return 0; } | |
738 | |
739 bool returns_long() const { return tf()->return_type() == T_LONG; } | |
740 bool return_value_is_used() const; | |
741 #ifndef PRODUCT | |
742 virtual void dump_spec(outputStream *st) const; | |
743 #endif | |
744 }; | |
745 | |
746 //------------------------------MachCallJavaNode------------------------------ | |
747 // "Base" class for machine-specific versions of subroutine calls | |
748 class MachCallJavaNode : public MachCallNode { | |
749 protected: | |
750 virtual uint cmp( const Node &n ) const; | |
751 virtual uint size_of() const; // Size is bigger | |
752 public: | |
753 ciMethod* _method; // Method being direct called | |
754 int _bci; // Byte Code index of call byte code | |
755 bool _optimized_virtual; // Tells if node is a static call or an optimized virtual | |
1137 | 756 bool _method_handle_invoke; // Tells if the call has to preserve SP |
0 | 757 MachCallJavaNode() : MachCallNode() { |
758 init_class_id(Class_MachCallJava); | |
759 } | |
1137 | 760 |
761 virtual const RegMask &in_RegMask(uint) const; | |
762 | |
0 | 763 #ifndef PRODUCT |
764 virtual void dump_spec(outputStream *st) const; | |
765 #endif | |
766 }; | |
767 | |
768 //------------------------------MachCallStaticJavaNode------------------------ | |
769 // Machine-specific versions of monomorphic subroutine calls | |
770 class MachCallStaticJavaNode : public MachCallJavaNode { | |
771 virtual uint cmp( const Node &n ) const; | |
772 virtual uint size_of() const; // Size is bigger | |
773 public: | |
774 const char *_name; // Runtime wrapper name | |
775 MachCallStaticJavaNode() : MachCallJavaNode() { | |
776 init_class_id(Class_MachCallStaticJava); | |
777 } | |
778 | |
779 // If this is an uncommon trap, return the request code, else zero. | |
780 int uncommon_trap_request() const; | |
781 | |
782 virtual int ret_addr_offset(); | |
783 #ifndef PRODUCT | |
784 virtual void dump_spec(outputStream *st) const; | |
785 void dump_trap_args(outputStream *st) const; | |
786 #endif | |
787 }; | |
788 | |
789 //------------------------------MachCallDynamicJavaNode------------------------ | |
790 // Machine-specific versions of possibly megamorphic subroutine calls | |
791 class MachCallDynamicJavaNode : public MachCallJavaNode { | |
792 public: | |
793 int _vtable_index; | |
794 MachCallDynamicJavaNode() : MachCallJavaNode() { | |
795 init_class_id(Class_MachCallDynamicJava); | |
796 DEBUG_ONLY(_vtable_index = -99); // throw an assert if uninitialized | |
797 } | |
798 virtual int ret_addr_offset(); | |
799 #ifndef PRODUCT | |
800 virtual void dump_spec(outputStream *st) const; | |
801 #endif | |
802 }; | |
803 | |
804 //------------------------------MachCallRuntimeNode---------------------------- | |
805 // Machine-specific versions of subroutine calls | |
806 class MachCallRuntimeNode : public MachCallNode { | |
807 virtual uint cmp( const Node &n ) const; | |
808 virtual uint size_of() const; // Size is bigger | |
809 public: | |
810 const char *_name; // Printable name, if _method is NULL | |
811 MachCallRuntimeNode() : MachCallNode() { | |
812 init_class_id(Class_MachCallRuntime); | |
813 } | |
814 virtual int ret_addr_offset(); | |
815 #ifndef PRODUCT | |
816 virtual void dump_spec(outputStream *st) const; | |
817 #endif | |
818 }; | |
819 | |
820 class MachCallLeafNode: public MachCallRuntimeNode { | |
821 public: | |
822 MachCallLeafNode() : MachCallRuntimeNode() { | |
823 init_class_id(Class_MachCallLeaf); | |
824 } | |
825 }; | |
826 | |
827 //------------------------------MachHaltNode----------------------------------- | |
828 // Machine-specific versions of halt nodes | |
829 class MachHaltNode : public MachReturnNode { | |
830 public: | |
831 virtual JVMState* jvms() const; | |
832 }; | |
833 | |
834 | |
835 //------------------------------MachTempNode----------------------------------- | |
836 // Node used by the adlc to construct inputs to represent temporary registers | |
837 class MachTempNode : public MachNode { | |
838 private: | |
839 MachOper *_opnd_array[1]; | |
840 | |
841 public: | |
842 virtual const RegMask &out_RegMask() const { return *_opnds[0]->in_RegMask(0); } | |
843 virtual uint rule() const { return 9999999; } | |
844 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const {} | |
845 | |
846 MachTempNode(MachOper* oper) { | |
847 init_class_id(Class_MachTemp); | |
848 _num_opnds = 1; | |
849 _opnds = _opnd_array; | |
850 add_req(NULL); | |
851 _opnds[0] = oper; | |
852 } | |
853 virtual uint size_of() const { return sizeof(MachTempNode); } | |
854 | |
855 #ifndef PRODUCT | |
856 virtual void format(PhaseRegAlloc *, outputStream *st ) const {} | |
857 virtual const char *Name() const { return "MachTemp";} | |
858 #endif | |
859 }; | |
860 | |
861 | |
862 | |
863 //------------------------------labelOper-------------------------------------- | |
864 // Machine-independent version of label operand | |
865 class labelOper : public MachOper { | |
866 private: | |
867 virtual uint num_edges() const { return 0; } | |
868 public: | |
869 // Supported for fixed size branches | |
870 Label* _label; // Label for branch(es) | |
871 | |
872 uint _block_num; | |
873 | |
874 labelOper() : _block_num(0), _label(0) {} | |
875 | |
876 labelOper(Label* label, uint block_num) : _label(label), _block_num(block_num) {} | |
877 | |
878 labelOper(labelOper* l) : _label(l->_label) , _block_num(l->_block_num) {} | |
879 | |
880 virtual MachOper *clone(Compile* C) const; | |
881 | |
3839 | 882 virtual Label *label() const { assert(_label != NULL, "need Label"); return _label; } |
0 | 883 |
884 virtual uint opcode() const; | |
885 | |
886 virtual uint hash() const; | |
887 virtual uint cmp( const MachOper &oper ) const; | |
888 #ifndef PRODUCT | |
889 virtual const char *Name() const { return "Label";} | |
890 | |
891 virtual void int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const; | |
892 virtual void ext_format(PhaseRegAlloc *ra, const MachNode *node, int idx, outputStream *st) const { int_format( ra, node, st ); } | |
893 #endif | |
894 }; | |
895 | |
896 | |
897 //------------------------------methodOper-------------------------------------- | |
898 // Machine-independent version of method operand | |
899 class methodOper : public MachOper { | |
900 private: | |
901 virtual uint num_edges() const { return 0; } | |
902 public: | |
903 intptr_t _method; // Address of method | |
904 methodOper() : _method(0) {} | |
905 methodOper(intptr_t method) : _method(method) {} | |
906 | |
907 virtual MachOper *clone(Compile* C) const; | |
908 | |
909 virtual intptr_t method() const { return _method; } | |
910 | |
911 virtual uint opcode() const; | |
912 | |
913 virtual uint hash() const; | |
914 virtual uint cmp( const MachOper &oper ) const; | |
915 #ifndef PRODUCT | |
916 virtual const char *Name() const { return "Method";} | |
917 | |
918 virtual void int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const; | |
919 virtual void ext_format(PhaseRegAlloc *ra, const MachNode *node, int idx, outputStream *st) const { int_format( ra, node, st ); } | |
920 #endif | |
921 }; | |
1972 | 922 |
923 #endif // SHARE_VM_OPTO_MACHNODE_HPP |