Mercurial > hg > truffle
annotate src/share/vm/opto/machnode.cpp @ 497:7aadaf46ecd7
Merge
author | jmasa |
---|---|
date | Fri, 19 Dec 2008 12:15:34 -0800 |
parents | 9c2ecc2ffb12 |
children | 98cb887364d3 |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_machnode.cpp.incl" | |
27 | |
28 //============================================================================= | |
29 // Return the value requested | |
30 // result register lookup, corresponding to int_format | |
31 int MachOper::reg(PhaseRegAlloc *ra_, const Node *node) const { | |
32 return (int)ra_->get_encode(node); | |
33 } | |
34 // input register lookup, corresponding to ext_format | |
35 int MachOper::reg(PhaseRegAlloc *ra_, const Node *node, int idx) const { | |
36 return (int)(ra_->get_encode(node->in(idx))); | |
37 } | |
38 intptr_t MachOper::constant() const { return 0x00; } | |
39 bool MachOper::constant_is_oop() const { return false; } | |
40 jdouble MachOper::constantD() const { ShouldNotReachHere(); return 0.0; } | |
41 jfloat MachOper::constantF() const { ShouldNotReachHere(); return 0.0; } | |
42 jlong MachOper::constantL() const { ShouldNotReachHere(); return CONST64(0) ; } | |
43 TypeOopPtr *MachOper::oop() const { return NULL; } | |
44 int MachOper::ccode() const { return 0x00; } | |
45 // A zero, default, indicates this value is not needed. | |
46 // May need to lookup the base register, as done in int_ and ext_format | |
47 int MachOper::base (PhaseRegAlloc *ra_, const Node *node, int idx) const { return 0x00; } | |
48 int MachOper::index(PhaseRegAlloc *ra_, const Node *node, int idx) const { return 0x00; } | |
49 int MachOper::scale() const { return 0x00; } | |
50 int MachOper::disp (PhaseRegAlloc *ra_, const Node *node, int idx) const { return 0x00; } | |
51 int MachOper::constant_disp() const { return 0; } | |
52 int MachOper::base_position() const { return -1; } // no base input | |
53 int MachOper::index_position() const { return -1; } // no index input | |
54 // Check for PC-Relative displacement | |
55 bool MachOper::disp_is_oop() const { return false; } | |
56 // Return the label | |
57 Label* MachOper::label() const { ShouldNotReachHere(); return 0; } | |
58 intptr_t MachOper::method() const { ShouldNotReachHere(); return 0; } | |
59 | |
60 | |
61 //------------------------------negate----------------------------------------- | |
62 // Negate conditional branches. Error for non-branch operands | |
63 void MachOper::negate() { | |
64 ShouldNotCallThis(); | |
65 } | |
66 | |
67 //-----------------------------type-------------------------------------------- | |
68 const Type *MachOper::type() const { | |
69 return Type::BOTTOM; | |
70 } | |
71 | |
72 //------------------------------in_RegMask------------------------------------- | |
73 const RegMask *MachOper::in_RegMask(int index) const { | |
74 ShouldNotReachHere(); | |
75 return NULL; | |
76 } | |
77 | |
78 //------------------------------dump_spec-------------------------------------- | |
79 // Print any per-operand special info | |
80 #ifndef PRODUCT | |
81 void MachOper::dump_spec(outputStream *st) const { } | |
82 #endif | |
83 | |
84 //------------------------------hash------------------------------------------- | |
85 // Print any per-operand special info | |
86 uint MachOper::hash() const { | |
87 ShouldNotCallThis(); | |
88 return 5; | |
89 } | |
90 | |
91 //------------------------------cmp-------------------------------------------- | |
92 // Print any per-operand special info | |
93 uint MachOper::cmp( const MachOper &oper ) const { | |
94 ShouldNotCallThis(); | |
95 return opcode() == oper.opcode(); | |
96 } | |
97 | |
98 //------------------------------hash------------------------------------------- | |
99 // Print any per-operand special info | |
100 uint labelOper::hash() const { | |
101 return _block_num; | |
102 } | |
103 | |
104 //------------------------------cmp-------------------------------------------- | |
105 // Print any per-operand special info | |
106 uint labelOper::cmp( const MachOper &oper ) const { | |
107 return (opcode() == oper.opcode()) && (_label == oper.label()); | |
108 } | |
109 | |
110 //------------------------------hash------------------------------------------- | |
111 // Print any per-operand special info | |
112 uint methodOper::hash() const { | |
113 return (uint)_method; | |
114 } | |
115 | |
116 //------------------------------cmp-------------------------------------------- | |
117 // Print any per-operand special info | |
118 uint methodOper::cmp( const MachOper &oper ) const { | |
119 return (opcode() == oper.opcode()) && (_method == oper.method()); | |
120 } | |
121 | |
122 | |
123 //============================================================================= | |
124 //------------------------------MachNode--------------------------------------- | |
125 | |
126 //------------------------------emit------------------------------------------- | |
127 void MachNode::emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const { | |
128 #ifdef ASSERT | |
129 tty->print("missing MachNode emit function: "); | |
130 dump(); | |
131 #endif | |
132 ShouldNotCallThis(); | |
133 } | |
134 | |
135 //------------------------------size------------------------------------------- | |
136 // Size of instruction in bytes | |
137 uint MachNode::size(PhaseRegAlloc *ra_) const { | |
138 // If a virtual was not defined for this specific instruction, | |
139 // Call the helper which finds the size by emiting the bits. | |
140 return MachNode::emit_size(ra_); | |
141 } | |
142 | |
143 //------------------------------size------------------------------------------- | |
144 // Helper function that computes size by emitting code | |
145 uint MachNode::emit_size(PhaseRegAlloc *ra_) const { | |
146 // Emit into a trash buffer and count bytes emitted. | |
147 assert(ra_ == ra_->C->regalloc(), "sanity"); | |
148 return ra_->C->scratch_emit_size(this); | |
149 } | |
150 | |
151 | |
152 | |
153 //------------------------------hash------------------------------------------- | |
154 uint MachNode::hash() const { | |
155 uint no = num_opnds(); | |
156 uint sum = rule(); | |
157 for( uint i=0; i<no; i++ ) | |
158 sum += _opnds[i]->hash(); | |
159 return sum+Node::hash(); | |
160 } | |
161 | |
162 //-----------------------------cmp--------------------------------------------- | |
163 uint MachNode::cmp( const Node &node ) const { | |
164 MachNode& n = *((Node&)node).as_Mach(); | |
165 uint no = num_opnds(); | |
166 if( no != n.num_opnds() ) return 0; | |
167 if( rule() != n.rule() ) return 0; | |
168 for( uint i=0; i<no; i++ ) // All operands must match | |
169 if( !_opnds[i]->cmp( *n._opnds[i] ) ) | |
170 return 0; // mis-matched operands | |
171 return 1; // match | |
172 } | |
173 | |
174 // Return an equivalent instruction using memory for cisc_operand position | |
175 MachNode *MachNode::cisc_version(int offset, Compile* C) { | |
176 ShouldNotCallThis(); | |
177 return NULL; | |
178 } | |
179 | |
180 void MachNode::use_cisc_RegMask() { | |
181 ShouldNotReachHere(); | |
182 } | |
183 | |
184 | |
185 //-----------------------------in_RegMask-------------------------------------- | |
186 const RegMask &MachNode::in_RegMask( uint idx ) const { | |
187 uint numopnds = num_opnds(); // Virtual call for number of operands | |
188 uint skipped = oper_input_base(); // Sum of leaves skipped so far | |
189 if( idx < skipped ) { | |
190 assert( ideal_Opcode() == Op_AddP, "expected base ptr here" ); | |
191 assert( idx == 1, "expected base ptr here" ); | |
192 // debug info can be anywhere | |
193 return *Compile::current()->matcher()->idealreg2spillmask[Op_RegP]; | |
194 } | |
195 uint opcnt = 1; // First operand | |
196 uint num_edges = _opnds[1]->num_edges(); // leaves for first operand | |
197 while( idx >= skipped+num_edges ) { | |
198 skipped += num_edges; | |
199 opcnt++; // Bump operand count | |
200 assert( opcnt < numopnds, "Accessing non-existent operand" ); | |
201 num_edges = _opnds[opcnt]->num_edges(); // leaves for next operand | |
202 } | |
203 | |
204 const RegMask *rm = cisc_RegMask(); | |
205 if( rm == NULL || (int)opcnt != cisc_operand() ) { | |
206 rm = _opnds[opcnt]->in_RegMask(idx-skipped); | |
207 } | |
208 return *rm; | |
209 } | |
210 | |
211 //-----------------------------memory_inputs-------------------------------- | |
212 const MachOper* MachNode::memory_inputs(Node* &base, Node* &index) const { | |
213 const MachOper* oper = memory_operand(); | |
214 | |
215 if (oper == (MachOper*)-1) { | |
216 base = NodeSentinel; | |
217 index = NodeSentinel; | |
218 } else { | |
219 base = NULL; | |
220 index = NULL; | |
221 if (oper != NULL) { | |
222 // It has a unique memory operand. Find its index. | |
223 int oper_idx = num_opnds(); | |
224 while (--oper_idx >= 0) { | |
225 if (_opnds[oper_idx] == oper) break; | |
226 } | |
227 int oper_pos = operand_index(oper_idx); | |
228 int base_pos = oper->base_position(); | |
229 if (base_pos >= 0) { | |
230 base = _in[oper_pos+base_pos]; | |
231 } | |
232 int index_pos = oper->index_position(); | |
233 if (index_pos >= 0) { | |
234 index = _in[oper_pos+index_pos]; | |
235 } | |
236 } | |
237 } | |
238 | |
239 return oper; | |
240 } | |
241 | |
242 //-----------------------------get_base_and_disp---------------------------- | |
243 const Node* MachNode::get_base_and_disp(intptr_t &offset, const TypePtr* &adr_type) const { | |
244 | |
245 // Find the memory inputs using our helper function | |
246 Node* base; | |
247 Node* index; | |
248 const MachOper* oper = memory_inputs(base, index); | |
249 | |
250 if (oper == NULL) { | |
251 // Base has been set to NULL | |
252 offset = 0; | |
253 } else if (oper == (MachOper*)-1) { | |
254 // Base has been set to NodeSentinel | |
255 // There is not a unique memory use here. We will fall to AliasIdxBot. | |
256 offset = Type::OffsetBot; | |
257 } else { | |
258 // Base may be NULL, even if offset turns out to be != 0 | |
259 | |
260 intptr_t disp = oper->constant_disp(); | |
261 int scale = oper->scale(); | |
262 // Now we have collected every part of the ADLC MEMORY_INTER. | |
263 // See if it adds up to a base + offset. | |
264 if (index != NULL) { | |
221
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265 const Type* t_index = index->bottom_type(); |
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266 if (t_index->isa_narrowoop()) { // EncodeN, LoadN, LoadConN, LoadNKlass. |
216
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267 // Memory references through narrow oops have a |
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268 // funny base so grab the type from the index: |
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269 // [R12 + narrow_oop_reg<<3 + offset] |
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270 assert(base == NULL, "Memory references through narrow oops have no base"); |
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271 offset = disp; |
221
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272 adr_type = t_index->make_ptr()->add_offset(offset); |
216
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273 return NULL; |
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274 } else if (!index->is_Con()) { |
0 | 275 disp = Type::OffsetBot; |
276 } else if (disp != Type::OffsetBot) { | |
221
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277 const TypeX* ti = t_index->isa_intptr_t(); |
0 | 278 if (ti == NULL) { |
279 disp = Type::OffsetBot; // a random constant?? | |
280 } else { | |
281 disp += ti->get_con() << scale; | |
282 } | |
283 } | |
284 } | |
285 offset = disp; | |
286 | |
287 // In i486.ad, indOffset32X uses base==RegI and disp==RegP, | |
288 // this will prevent alias analysis without the following support: | |
289 // Lookup the TypePtr used by indOffset32X, a compile-time constant oop, | |
290 // Add the offset determined by the "base", or use Type::OffsetBot. | |
291 if( adr_type == TYPE_PTR_SENTINAL ) { | |
292 const TypePtr *t_disp = oper->disp_as_type(); // only !NULL for indOffset32X | |
293 if (t_disp != NULL) { | |
294 offset = Type::OffsetBot; | |
295 const Type* t_base = base->bottom_type(); | |
296 if (t_base->isa_intptr_t()) { | |
297 const TypeX *t_offset = t_base->is_intptr_t(); | |
298 if( t_offset->is_con() ) { | |
299 offset = t_offset->get_con(); | |
300 } | |
301 } | |
302 adr_type = t_disp->add_offset(offset); | |
303 } | |
304 } | |
305 | |
306 } | |
307 return base; | |
308 } | |
309 | |
310 | |
311 //---------------------------------adr_type--------------------------------- | |
312 const class TypePtr *MachNode::adr_type() const { | |
313 intptr_t offset = 0; | |
314 const TypePtr *adr_type = TYPE_PTR_SENTINAL; // attempt computing adr_type | |
315 const Node *base = get_base_and_disp(offset, adr_type); | |
316 if( adr_type != TYPE_PTR_SENTINAL ) { | |
317 return adr_type; // get_base_and_disp has the answer | |
318 } | |
319 | |
320 // Direct addressing modes have no base node, simply an indirect | |
321 // offset, which is always to raw memory. | |
322 // %%%%% Someday we'd like to allow constant oop offsets which | |
323 // would let Intel load from static globals in 1 instruction. | |
324 // Currently Intel requires 2 instructions and a register temp. | |
325 if (base == NULL) { | |
326 // NULL base, zero offset means no memory at all (a null pointer!) | |
327 if (offset == 0) { | |
328 return NULL; | |
329 } | |
330 // NULL base, any offset means any pointer whatever | |
331 if (offset == Type::OffsetBot) { | |
332 return TypePtr::BOTTOM; | |
333 } | |
334 // %%% make offset be intptr_t | |
335 assert(!Universe::heap()->is_in_reserved((oop)offset), "must be a raw ptr"); | |
336 return TypeRawPtr::BOTTOM; | |
337 } | |
338 | |
339 // base of -1 with no particular offset means all of memory | |
340 if (base == NodeSentinel) return TypePtr::BOTTOM; | |
341 | |
342 const Type* t = base->bottom_type(); | |
343 if (t->isa_intptr_t() && offset != 0 && offset != Type::OffsetBot) { | |
344 // We cannot assert that the offset does not look oop-ish here. | |
345 // Depending on the heap layout the cardmark base could land | |
346 // inside some oopish region. It definitely does for Win2K. | |
347 // The sum of cardmark-base plus shift-by-9-oop lands outside | |
348 // the oop-ish area but we can't assert for that statically. | |
349 return TypeRawPtr::BOTTOM; | |
350 } | |
351 | |
352 const TypePtr *tp = t->isa_ptr(); | |
353 | |
354 // be conservative if we do not recognize the type | |
355 if (tp == NULL) { | |
356 return TypePtr::BOTTOM; | |
357 } | |
358 assert(tp->base() != Type::AnyPtr, "not a bare pointer"); | |
359 | |
360 return tp->add_offset(offset); | |
361 } | |
362 | |
363 | |
364 //-----------------------------operand_index--------------------------------- | |
365 int MachNode::operand_index( uint operand ) const { | |
366 if( operand < 1 ) return -1; | |
367 assert(operand < num_opnds(), "oob"); | |
368 if( _opnds[operand]->num_edges() == 0 ) return -1; | |
369 | |
370 uint skipped = oper_input_base(); // Sum of leaves skipped so far | |
371 for (uint opcnt = 1; opcnt < operand; opcnt++) { | |
372 uint num_edges = _opnds[opcnt]->num_edges(); // leaves for operand | |
373 skipped += num_edges; | |
374 } | |
375 return skipped; | |
376 } | |
377 | |
378 | |
379 //------------------------------negate----------------------------------------- | |
380 // Negate conditional branches. Error for non-branch Nodes | |
381 void MachNode::negate() { | |
382 ShouldNotCallThis(); | |
383 } | |
384 | |
385 //------------------------------peephole--------------------------------------- | |
386 // Apply peephole rule(s) to this instruction | |
387 MachNode *MachNode::peephole( Block *block, int block_index, PhaseRegAlloc *ra_, int &deleted, Compile* C ) { | |
388 return NULL; | |
389 } | |
390 | |
391 //------------------------------add_case_label--------------------------------- | |
392 // Adds the label for the case | |
393 void MachNode::add_case_label( int index_num, Label* blockLabel) { | |
394 ShouldNotCallThis(); | |
395 } | |
396 | |
397 //------------------------------label_set-------------------------------------- | |
398 // Set the Label for a LabelOper, if an operand for this instruction | |
399 void MachNode::label_set( Label& label, uint block_num ) { | |
400 ShouldNotCallThis(); | |
401 } | |
402 | |
403 //------------------------------method_set------------------------------------- | |
404 // Set the absolute address of a method | |
405 void MachNode::method_set( intptr_t addr ) { | |
406 ShouldNotCallThis(); | |
407 } | |
408 | |
409 //------------------------------rematerialize---------------------------------- | |
410 bool MachNode::rematerialize() const { | |
411 // Temps are always rematerializable | |
412 if (is_MachTemp()) return true; | |
413 | |
414 uint r = rule(); // Match rule | |
415 if( r < Matcher::_begin_rematerialize || | |
416 r >= Matcher::_end_rematerialize ) | |
417 return false; | |
418 | |
419 // For 2-address instructions, the input live range is also the output | |
420 // live range. Remateralizing does not make progress on the that live range. | |
421 if( two_adr() ) return false; | |
422 | |
423 // Check for rematerializing float constants, or not | |
424 if( !Matcher::rematerialize_float_constants ) { | |
425 int op = ideal_Opcode(); | |
426 if( op == Op_ConF || op == Op_ConD ) | |
427 return false; | |
428 } | |
429 | |
430 // Defining flags - can't spill these! Must remateralize. | |
431 if( ideal_reg() == Op_RegFlags ) | |
432 return true; | |
433 | |
434 // Stretching lots of inputs - don't do it. | |
435 if( req() > 2 ) | |
436 return false; | |
437 | |
438 // Don't remateralize somebody with bound inputs - it stretches a | |
439 // fixed register lifetime. | |
440 uint idx = oper_input_base(); | |
441 if( req() > idx ) { | |
442 const RegMask &rm = in_RegMask(idx); | |
443 if( rm.is_bound1() || rm.is_bound2() ) | |
444 return false; | |
445 } | |
446 | |
447 return true; | |
448 } | |
449 | |
450 #ifndef PRODUCT | |
451 //------------------------------dump_spec-------------------------------------- | |
452 // Print any per-operand special info | |
453 void MachNode::dump_spec(outputStream *st) const { | |
454 uint cnt = num_opnds(); | |
455 for( uint i=0; i<cnt; i++ ) | |
456 _opnds[i]->dump_spec(st); | |
457 const TypePtr *t = adr_type(); | |
458 if( t ) { | |
459 Compile* C = Compile::current(); | |
460 if( C->alias_type(t)->is_volatile() ) | |
461 st->print(" Volatile!"); | |
462 } | |
463 } | |
464 | |
465 //------------------------------dump_format------------------------------------ | |
466 // access to virtual | |
467 void MachNode::dump_format(PhaseRegAlloc *ra, outputStream *st) const { | |
468 format(ra, st); // access to virtual | |
469 } | |
470 #endif | |
471 | |
472 //============================================================================= | |
473 #ifndef PRODUCT | |
474 void MachTypeNode::dump_spec(outputStream *st) const { | |
475 _bottom_type->dump_on(st); | |
476 } | |
477 #endif | |
478 | |
479 //============================================================================= | |
480 #ifndef PRODUCT | |
481 void MachNullCheckNode::format( PhaseRegAlloc *ra_, outputStream *st ) const { | |
482 int reg = ra_->get_reg_first(in(1)->in(_vidx)); | |
483 tty->print("%s %s", Name(), Matcher::regName[reg]); | |
484 } | |
485 #endif | |
486 | |
487 void MachNullCheckNode::emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const { | |
488 // only emits entries in the null-pointer exception handler table | |
489 } | |
490 | |
491 const RegMask &MachNullCheckNode::in_RegMask( uint idx ) const { | |
492 if( idx == 0 ) return RegMask::Empty; | |
493 else return in(1)->as_Mach()->out_RegMask(); | |
494 } | |
495 | |
496 //============================================================================= | |
497 const Type *MachProjNode::bottom_type() const { | |
498 if( _ideal_reg == fat_proj ) return Type::BOTTOM; | |
499 // Try the normal mechanism first | |
500 const Type *t = in(0)->bottom_type(); | |
501 if( t->base() == Type::Tuple ) { | |
502 const TypeTuple *tt = t->is_tuple(); | |
503 if (_con < tt->cnt()) | |
504 return tt->field_at(_con); | |
505 } | |
506 // Else use generic type from ideal register set | |
507 assert((uint)_ideal_reg < (uint)_last_machine_leaf && Type::mreg2type[_ideal_reg], "in bounds"); | |
508 return Type::mreg2type[_ideal_reg]; | |
509 } | |
510 | |
511 const TypePtr *MachProjNode::adr_type() const { | |
512 if (bottom_type() == Type::MEMORY) { | |
513 // in(0) might be a narrow MemBar; otherwise we will report TypePtr::BOTTOM | |
514 const TypePtr* adr_type = in(0)->adr_type(); | |
515 #ifdef ASSERT | |
516 if (!is_error_reported() && !Node::in_dump()) | |
517 assert(adr_type != NULL, "source must have adr_type"); | |
518 #endif | |
519 return adr_type; | |
520 } | |
521 assert(bottom_type()->base() != Type::Memory, "no other memories?"); | |
522 return NULL; | |
523 } | |
524 | |
525 #ifndef PRODUCT | |
526 void MachProjNode::dump_spec(outputStream *st) const { | |
527 ProjNode::dump_spec(st); | |
528 switch (_ideal_reg) { | |
529 case unmatched_proj: st->print("/unmatched"); break; | |
530 case fat_proj: st->print("/fat"); if (WizardMode) _rout.dump(); break; | |
531 } | |
532 } | |
533 #endif | |
534 | |
535 //============================================================================= | |
536 #ifndef PRODUCT | |
537 void MachIfNode::dump_spec(outputStream *st) const { | |
538 st->print("P=%f, C=%f",_prob, _fcnt); | |
539 } | |
540 #endif | |
541 | |
542 //============================================================================= | |
543 uint MachReturnNode::size_of() const { return sizeof(*this); } | |
544 | |
545 //------------------------------Registers-------------------------------------- | |
546 const RegMask &MachReturnNode::in_RegMask( uint idx ) const { | |
547 return _in_rms[idx]; | |
548 } | |
549 | |
550 const TypePtr *MachReturnNode::adr_type() const { | |
551 // most returns and calls are assumed to consume & modify all of memory | |
552 // the matcher will copy non-wide adr_types from ideal originals | |
553 return _adr_type; | |
554 } | |
555 | |
556 //============================================================================= | |
557 const Type *MachSafePointNode::bottom_type() const { return TypeTuple::MEMBAR; } | |
558 | |
559 //------------------------------Registers-------------------------------------- | |
560 const RegMask &MachSafePointNode::in_RegMask( uint idx ) const { | |
561 // Values in the domain use the users calling convention, embodied in the | |
562 // _in_rms array of RegMasks. | |
563 if( idx < TypeFunc::Parms ) return _in_rms[idx]; | |
564 | |
565 if (SafePointNode::needs_polling_address_input() && | |
566 idx == TypeFunc::Parms && | |
567 ideal_Opcode() == Op_SafePoint) { | |
568 return MachNode::in_RegMask(idx); | |
569 } | |
570 | |
571 // Values outside the domain represent debug info | |
572 return *Compile::current()->matcher()->idealreg2spillmask[in(idx)->ideal_reg()]; | |
573 } | |
574 | |
575 | |
576 //============================================================================= | |
577 | |
578 uint MachCallNode::cmp( const Node &n ) const | |
579 { return _tf == ((MachCallNode&)n)._tf; } | |
580 const Type *MachCallNode::bottom_type() const { return tf()->range(); } | |
581 const Type *MachCallNode::Value(PhaseTransform *phase) const { return tf()->range(); } | |
582 | |
583 #ifndef PRODUCT | |
584 void MachCallNode::dump_spec(outputStream *st) const { | |
585 st->print("# "); | |
586 tf()->dump_on(st); | |
587 if (_cnt != COUNT_UNKNOWN) st->print(" C=%f",_cnt); | |
588 if (jvms() != NULL) jvms()->dump_spec(st); | |
589 } | |
590 #endif | |
591 | |
592 | |
593 bool MachCallNode::return_value_is_used() const { | |
594 if (tf()->range()->cnt() == TypeFunc::Parms) { | |
595 // void return | |
596 return false; | |
597 } | |
598 | |
599 // find the projection corresponding to the return value | |
600 for (DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++) { | |
601 Node *use = fast_out(i); | |
602 if (!use->is_Proj()) continue; | |
603 if (use->as_Proj()->_con == TypeFunc::Parms) { | |
604 return true; | |
605 } | |
606 } | |
607 return false; | |
608 } | |
609 | |
610 | |
611 //------------------------------Registers-------------------------------------- | |
612 const RegMask &MachCallNode::in_RegMask( uint idx ) const { | |
613 // Values in the domain use the users calling convention, embodied in the | |
614 // _in_rms array of RegMasks. | |
615 if (idx < tf()->domain()->cnt()) return _in_rms[idx]; | |
616 // Values outside the domain represent debug info | |
617 return *Compile::current()->matcher()->idealreg2debugmask[in(idx)->ideal_reg()]; | |
618 } | |
619 | |
620 //============================================================================= | |
621 uint MachCallJavaNode::size_of() const { return sizeof(*this); } | |
622 uint MachCallJavaNode::cmp( const Node &n ) const { | |
623 MachCallJavaNode &call = (MachCallJavaNode&)n; | |
624 return MachCallNode::cmp(call) && _method->equals(call._method); | |
625 } | |
626 #ifndef PRODUCT | |
627 void MachCallJavaNode::dump_spec(outputStream *st) const { | |
628 if( _method ) { | |
629 _method->print_short_name(st); | |
630 st->print(" "); | |
631 } | |
632 MachCallNode::dump_spec(st); | |
633 } | |
634 #endif | |
635 | |
636 //============================================================================= | |
637 uint MachCallStaticJavaNode::size_of() const { return sizeof(*this); } | |
638 uint MachCallStaticJavaNode::cmp( const Node &n ) const { | |
639 MachCallStaticJavaNode &call = (MachCallStaticJavaNode&)n; | |
640 return MachCallJavaNode::cmp(call) && _name == call._name; | |
641 } | |
642 | |
643 //----------------------------uncommon_trap_request---------------------------- | |
644 // If this is an uncommon trap, return the request code, else zero. | |
645 int MachCallStaticJavaNode::uncommon_trap_request() const { | |
646 if (_name != NULL && !strcmp(_name, "uncommon_trap")) { | |
647 return CallStaticJavaNode::extract_uncommon_trap_request(this); | |
648 } | |
649 return 0; | |
650 } | |
651 | |
652 #ifndef PRODUCT | |
653 // Helper for summarizing uncommon_trap arguments. | |
654 void MachCallStaticJavaNode::dump_trap_args(outputStream *st) const { | |
655 int trap_req = uncommon_trap_request(); | |
656 if (trap_req != 0) { | |
657 char buf[100]; | |
658 st->print("(%s)", | |
659 Deoptimization::format_trap_request(buf, sizeof(buf), | |
660 trap_req)); | |
661 } | |
662 } | |
663 | |
664 void MachCallStaticJavaNode::dump_spec(outputStream *st) const { | |
665 st->print("Static "); | |
666 if (_name != NULL) { | |
667 st->print("wrapper for: %s", _name ); | |
668 dump_trap_args(st); | |
669 st->print(" "); | |
670 } | |
671 MachCallJavaNode::dump_spec(st); | |
672 } | |
673 #endif | |
674 | |
675 //============================================================================= | |
676 #ifndef PRODUCT | |
677 void MachCallDynamicJavaNode::dump_spec(outputStream *st) const { | |
678 st->print("Dynamic "); | |
679 MachCallJavaNode::dump_spec(st); | |
680 } | |
681 #endif | |
682 //============================================================================= | |
683 uint MachCallRuntimeNode::size_of() const { return sizeof(*this); } | |
684 uint MachCallRuntimeNode::cmp( const Node &n ) const { | |
685 MachCallRuntimeNode &call = (MachCallRuntimeNode&)n; | |
686 return MachCallNode::cmp(call) && !strcmp(_name,call._name); | |
687 } | |
688 #ifndef PRODUCT | |
689 void MachCallRuntimeNode::dump_spec(outputStream *st) const { | |
690 st->print("%s ",_name); | |
691 MachCallNode::dump_spec(st); | |
692 } | |
693 #endif | |
694 //============================================================================= | |
695 // A shared JVMState for all HaltNodes. Indicates the start of debug info | |
696 // is at TypeFunc::Parms. Only required for SOE register spill handling - | |
697 // to indicate where the stack-slot-only debug info inputs begin. | |
698 // There is no other JVM state needed here. | |
699 JVMState jvms_for_throw(0); | |
700 JVMState *MachHaltNode::jvms() const { | |
701 return &jvms_for_throw; | |
702 } | |
703 | |
704 //============================================================================= | |
705 #ifndef PRODUCT | |
706 void labelOper::int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const { | |
707 st->print("B%d", _block_num); | |
708 } | |
709 #endif // PRODUCT | |
710 | |
711 //============================================================================= | |
712 #ifndef PRODUCT | |
713 void methodOper::int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const { | |
714 st->print(INTPTR_FORMAT, _method); | |
715 } | |
716 #endif // PRODUCT |