Thu, 20 Sep 2012 16:49:17 +0200
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose
1 /*
2 * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "opto/addnode.hpp"
27 #include "opto/callnode.hpp"
28 #include "opto/cfgnode.hpp"
29 #include "opto/idealKit.hpp"
30 #include "opto/runtime.hpp"
32 // Static initialization
34 // This declares the position where vars are kept in the cvstate
35 // For some degree of consistency we use the TypeFunc enum to
36 // soak up spots in the inputs even though we only use early Control
37 // and Memory slots. (So far.)
38 const uint IdealKit::first_var = TypeFunc::Parms + 1;
40 //----------------------------IdealKit-----------------------------------------
41 IdealKit::IdealKit(GraphKit* gkit, bool delay_all_transforms, bool has_declarations) :
42 _gvn(gkit->gvn()), C(gkit->C) {
43 _initial_ctrl = gkit->control();
44 _initial_memory = gkit->merged_memory();
45 _initial_i_o = gkit->i_o();
46 _delay_all_transforms = delay_all_transforms;
47 _var_ct = 0;
48 _cvstate = NULL;
49 // We can go memory state free or else we need the entire memory state
50 assert(_initial_memory == NULL || _initial_memory->Opcode() == Op_MergeMem, "memory must be pre-split");
51 int init_size = 5;
52 _pending_cvstates = new (C->node_arena()) GrowableArray<Node*>(C->node_arena(), init_size, 0, 0);
53 _delay_transform = new (C->node_arena()) GrowableArray<Node*>(C->node_arena(), init_size, 0, 0);
54 DEBUG_ONLY(_state = new (C->node_arena()) GrowableArray<int>(C->node_arena(), init_size, 0, 0));
55 if (!has_declarations) {
56 declarations_done();
57 }
58 }
60 //----------------------------sync_kit-----------------------------------------
61 void IdealKit::sync_kit(GraphKit* gkit) {
62 set_all_memory(gkit->merged_memory());
63 set_i_o(gkit->i_o());
64 set_ctrl(gkit->control());
65 }
67 //-------------------------------if_then-------------------------------------
68 // Create: if(left relop right)
69 // / \
70 // iffalse iftrue
71 // Push the iffalse cvstate onto the stack. The iftrue becomes the current cvstate.
72 void IdealKit::if_then(Node* left, BoolTest::mask relop,
73 Node* right, float prob, float cnt, bool push_new_state) {
74 assert((state() & (BlockS|LoopS|IfThenS|ElseS)), "bad state for new If");
75 Node* bol;
76 if (left->bottom_type()->isa_ptr() == NULL) {
77 if (left->bottom_type()->isa_int() != NULL) {
78 bol = Bool(CmpI(left, right), relop);
79 } else {
80 assert(left->bottom_type()->isa_long() != NULL, "what else?");
81 bol = Bool(CmpL(left, right), relop);
82 }
84 } else {
85 bol = Bool(CmpP(left, right), relop);
86 }
87 // Delay gvn.tranform on if-nodes until construction is finished
88 // to prevent a constant bool input from discarding a control output.
89 IfNode* iff = delay_transform(new (C, 2) IfNode(ctrl(), bol, prob, cnt))->as_If();
90 Node* then = IfTrue(iff);
91 Node* elsen = IfFalse(iff);
92 Node* else_cvstate = copy_cvstate();
93 else_cvstate->set_req(TypeFunc::Control, elsen);
94 _pending_cvstates->push(else_cvstate);
95 DEBUG_ONLY(if (push_new_state) _state->push(IfThenS));
96 set_ctrl(then);
97 }
99 //-------------------------------else_-------------------------------------
100 // Pop the else cvstate off the stack, and push the (current) then cvstate.
101 // The else cvstate becomes the current cvstate.
102 void IdealKit::else_() {
103 assert(state() == IfThenS, "bad state for new Else");
104 Node* else_cvstate = _pending_cvstates->pop();
105 DEBUG_ONLY(_state->pop());
106 // save current (then) cvstate for later use at endif
107 _pending_cvstates->push(_cvstate);
108 DEBUG_ONLY(_state->push(ElseS));
109 _cvstate = else_cvstate;
110 }
112 //-------------------------------end_if-------------------------------------
113 // Merge the "then" and "else" cvstates.
114 //
115 // The if_then() pushed a copy of the current state for later use
116 // as the initial state for a future "else" clause. The
117 // current state then became the initial state for the
118 // then clause. If an "else" clause was encountered, it will
119 // pop the top state and use it for it's initial state.
120 // It will also push the current state (the state at the end of
121 // the "then" clause) for latter use at the end_if.
122 //
123 // At the endif, the states are:
124 // 1) else exists a) current state is end of "else" clause
125 // b) top stack state is end of "then" clause
126 //
127 // 2) no else: a) current state is end of "then" clause
128 // b) top stack state is from the "if_then" which
129 // would have been the initial state of the else.
130 //
131 // Merging the states is accomplished by:
132 // 1) make a label for the merge
133 // 2) terminate the current state with a goto to the label
134 // 3) pop the top state from the stack and make it the
135 // current state
136 // 4) bind the label at the current state. Binding a label
137 // terminates the current state with a goto to the
138 // label and makes the label's state the current state.
139 //
140 void IdealKit::end_if() {
141 assert(state() & (IfThenS|ElseS), "bad state for new Endif");
142 Node* lab = make_label(1);
144 // Node* join_state = _pending_cvstates->pop();
145 /* merging, join */
146 goto_(lab);
147 _cvstate = _pending_cvstates->pop();
149 bind(lab);
150 DEBUG_ONLY(_state->pop());
151 }
153 //-------------------------------loop-------------------------------------
154 // Create the loop head portion (*) of:
155 // * iv = init
156 // * top: (region node)
157 // * if (iv relop limit) {
158 // loop body
159 // i = i + 1
160 // goto top
161 // * } else // exits loop
162 //
163 // Pushes the loop top cvstate first, then the else (loop exit) cvstate
164 // onto the stack.
165 void IdealKit::loop(GraphKit* gkit, int nargs, IdealVariable& iv, Node* init, BoolTest::mask relop, Node* limit, float prob, float cnt) {
166 assert((state() & (BlockS|LoopS|IfThenS|ElseS)), "bad state for new loop");
167 if (UseLoopPredicate) {
168 // Sync IdealKit and graphKit.
169 gkit->sync_kit(*this);
170 // Add loop predicate.
171 gkit->add_predicate(nargs);
172 // Update IdealKit memory.
173 sync_kit(gkit);
174 }
175 set(iv, init);
176 Node* head = make_label(1);
177 bind(head);
178 _pending_cvstates->push(head); // push for use at end_loop
179 _cvstate = copy_cvstate();
180 if_then(value(iv), relop, limit, prob, cnt, false /* no new state */);
181 DEBUG_ONLY(_state->push(LoopS));
182 assert(ctrl()->is_IfTrue(), "true branch stays in loop");
183 assert(_pending_cvstates->top()->in(TypeFunc::Control)->is_IfFalse(), "false branch exits loop");
184 }
186 //-------------------------------end_loop-------------------------------------
187 // Creates the goto top label.
188 // Expects the else (loop exit) cvstate to be on top of the
189 // stack, and the loop top cvstate to be 2nd.
190 void IdealKit::end_loop() {
191 assert((state() == LoopS), "bad state for new end_loop");
192 Node* exit = _pending_cvstates->pop();
193 Node* head = _pending_cvstates->pop();
194 goto_(head);
195 clear(head);
196 DEBUG_ONLY(_state->pop());
197 _cvstate = exit;
198 }
200 //-------------------------------make_label-------------------------------------
201 // Creates a label. The number of goto's
202 // must be specified (which should be 1 less than
203 // the number of precedessors.)
204 Node* IdealKit::make_label(int goto_ct) {
205 assert(_cvstate != NULL, "must declare variables before labels");
206 Node* lab = new_cvstate();
207 int sz = 1 + goto_ct + 1 /* fall thru */;
208 Node* reg = delay_transform(new (C, sz) RegionNode(sz));
209 lab->init_req(TypeFunc::Control, reg);
210 return lab;
211 }
213 //-------------------------------bind-------------------------------------
214 // Bind a label at the current cvstate by simulating
215 // a goto to the label.
216 void IdealKit::bind(Node* lab) {
217 goto_(lab, true /* bind */);
218 _cvstate = lab;
219 }
221 //-------------------------------goto_-------------------------------------
222 // Make the current cvstate a predecessor of the label,
223 // creating phi's to merge values. If bind is true and
224 // this is not the last control edge, then ensure that
225 // all live values have phis created. Used to create phis
226 // at loop-top regions.
227 void IdealKit::goto_(Node* lab, bool bind) {
228 Node* reg = lab->in(TypeFunc::Control);
229 // find next empty slot in region
230 uint slot = 1;
231 while (slot < reg->req() && reg->in(slot) != NULL) slot++;
232 assert(slot < reg->req(), "too many gotos");
233 // If this is last predecessor, then don't force phi creation
234 if (slot == reg->req() - 1) bind = false;
235 reg->init_req(slot, ctrl());
236 assert(first_var + _var_ct == _cvstate->req(), "bad _cvstate size");
237 for (uint i = first_var; i < _cvstate->req(); i++) {
239 // l is the value of var reaching the label. Could be a single value
240 // reaching the label, or a phi that merges multiples values reaching
241 // the label. The latter is true if the label's input: in(..) is
242 // a phi whose control input is the region node for the label.
244 Node* l = lab->in(i);
245 // Get the current value of the var
246 Node* m = _cvstate->in(i);
247 // If the var went unused no need for a phi
248 if (m == NULL) {
249 continue;
250 } else if (l == NULL || m == l) {
251 // Only one unique value "m" is known to reach this label so a phi
252 // is not yet necessary unless:
253 // the label is being bound and all predecessors have not been seen,
254 // in which case "bind" will be true.
255 if (bind) {
256 m = promote_to_phi(m, reg);
257 }
258 // Record the phi/value used for this var in the label's cvstate
259 lab->set_req(i, m);
260 } else {
261 // More than one value for the variable reaches this label so
262 // a create a phi if one does not already exist.
263 if (!was_promoted_to_phi(l, reg)) {
264 l = promote_to_phi(l, reg);
265 lab->set_req(i, l);
266 }
267 // Record in the phi, the var's value from the current state
268 l->set_req(slot, m);
269 }
270 }
271 do_memory_merge(_cvstate, lab);
272 stop();
273 }
275 //-----------------------------promote_to_phi-----------------------------------
276 Node* IdealKit::promote_to_phi(Node* n, Node* reg) {
277 assert(!was_promoted_to_phi(n, reg), "n already promoted to phi on this region");
278 // Get a conservative type for the phi
279 const BasicType bt = n->bottom_type()->basic_type();
280 const Type* ct = Type::get_const_basic_type(bt);
281 return delay_transform(PhiNode::make(reg, n, ct));
282 }
284 //-----------------------------declarations_done-------------------------------
285 void IdealKit::declarations_done() {
286 _cvstate = new_cvstate(); // initialize current cvstate
287 set_ctrl(_initial_ctrl); // initialize control in current cvstate
288 set_all_memory(_initial_memory);// initialize memory in current cvstate
289 set_i_o(_initial_i_o); // initialize i_o in current cvstate
290 DEBUG_ONLY(_state->push(BlockS));
291 }
293 //-----------------------------transform-----------------------------------
294 Node* IdealKit::transform(Node* n) {
295 if (_delay_all_transforms) {
296 return delay_transform(n);
297 } else {
298 n = gvn().transform(n);
299 if (!gvn().is_IterGVN()) {
300 C->record_for_igvn(n);
301 }
302 return n;
303 }
304 }
306 //-----------------------------delay_transform-----------------------------------
307 Node* IdealKit::delay_transform(Node* n) {
308 if (!gvn().is_IterGVN() || !gvn().is_IterGVN()->delay_transform()) {
309 gvn().set_type(n, n->bottom_type());
310 }
311 _delay_transform->push(n);
312 return n;
313 }
315 //-----------------------------new_cvstate-----------------------------------
316 Node* IdealKit::new_cvstate() {
317 uint sz = _var_ct + first_var;
318 return new (C, sz) Node(sz);
319 }
321 //-----------------------------copy_cvstate-----------------------------------
322 Node* IdealKit::copy_cvstate() {
323 Node* ns = new_cvstate();
324 for (uint i = 0; i < ns->req(); i++) ns->init_req(i, _cvstate->in(i));
325 // We must clone memory since it will be updated as we do stores.
326 ns->set_req(TypeFunc::Memory, MergeMemNode::make(C, ns->in(TypeFunc::Memory)));
327 return ns;
328 }
330 //-----------------------------clear-----------------------------------
331 void IdealKit::clear(Node* m) {
332 for (uint i = 0; i < m->req(); i++) m->set_req(i, NULL);
333 }
335 //-----------------------------drain_delay_transform----------------------------
336 void IdealKit::drain_delay_transform() {
337 while (_delay_transform->length() > 0) {
338 Node* n = _delay_transform->pop();
339 gvn().transform(n);
340 if (!gvn().is_IterGVN()) {
341 C->record_for_igvn(n);
342 }
343 }
344 }
346 //-----------------------------IdealVariable----------------------------
347 IdealVariable::IdealVariable(IdealKit &k) {
348 k.declare(this);
349 }
351 Node* IdealKit::memory(uint alias_idx) {
352 MergeMemNode* mem = merged_memory();
353 Node* p = mem->memory_at(alias_idx);
354 if (!gvn().is_IterGVN() || !gvn().is_IterGVN()->delay_transform()) {
355 _gvn.set_type(p, Type::MEMORY); // must be mapped
356 }
357 return p;
358 }
360 void IdealKit::set_memory(Node* mem, uint alias_idx) {
361 merged_memory()->set_memory_at(alias_idx, mem);
362 }
364 //----------------------------- make_load ----------------------------
365 Node* IdealKit::load(Node* ctl,
366 Node* adr,
367 const Type* t,
368 BasicType bt,
369 int adr_idx,
370 bool require_atomic_access) {
372 assert(adr_idx != Compile::AliasIdxTop, "use other make_load factory" );
373 const TypePtr* adr_type = NULL; // debug-mode-only argument
374 debug_only(adr_type = C->get_adr_type(adr_idx));
375 Node* mem = memory(adr_idx);
376 Node* ld;
377 if (require_atomic_access && bt == T_LONG) {
378 ld = LoadLNode::make_atomic(C, ctl, mem, adr, adr_type, t);
379 } else {
380 ld = LoadNode::make(_gvn, ctl, mem, adr, adr_type, t, bt);
381 }
382 return transform(ld);
383 }
385 Node* IdealKit::store(Node* ctl, Node* adr, Node *val, BasicType bt,
386 int adr_idx,
387 bool require_atomic_access) {
388 assert(adr_idx != Compile::AliasIdxTop, "use other store_to_memory factory" );
389 const TypePtr* adr_type = NULL;
390 debug_only(adr_type = C->get_adr_type(adr_idx));
391 Node *mem = memory(adr_idx);
392 Node* st;
393 if (require_atomic_access && bt == T_LONG) {
394 st = StoreLNode::make_atomic(C, ctl, mem, adr, adr_type, val);
395 } else {
396 st = StoreNode::make(_gvn, ctl, mem, adr, adr_type, val, bt);
397 }
398 st = transform(st);
399 set_memory(st, adr_idx);
401 return st;
402 }
404 // Card mark store. Must be ordered so that it will come after the store of
405 // the oop.
406 Node* IdealKit::storeCM(Node* ctl, Node* adr, Node *val, Node* oop_store, int oop_adr_idx,
407 BasicType bt,
408 int adr_idx) {
409 assert(adr_idx != Compile::AliasIdxTop, "use other store_to_memory factory" );
410 const TypePtr* adr_type = NULL;
411 debug_only(adr_type = C->get_adr_type(adr_idx));
412 Node *mem = memory(adr_idx);
414 // Add required edge to oop_store, optimizer does not support precedence edges.
415 // Convert required edge to precedence edge before allocation.
416 Node* st = new (C, 5) StoreCMNode(ctl, mem, adr, adr_type, val, oop_store, oop_adr_idx);
418 st = transform(st);
419 set_memory(st, adr_idx);
421 return st;
422 }
424 //---------------------------- do_memory_merge --------------------------------
425 // The memory from one merging cvstate needs to be merged with the memory for another
426 // join cvstate. If the join cvstate doesn't have a merged memory yet then we
427 // can just copy the state from the merging cvstate
429 // Merge one slow path into the rest of memory.
430 void IdealKit::do_memory_merge(Node* merging, Node* join) {
432 // Get the region for the join state
433 Node* join_region = join->in(TypeFunc::Control);
434 assert(join_region != NULL, "join region must exist");
435 if (join->in(TypeFunc::I_O) == NULL ) {
436 join->set_req(TypeFunc::I_O, merging->in(TypeFunc::I_O));
437 }
438 if (join->in(TypeFunc::Memory) == NULL ) {
439 join->set_req(TypeFunc::Memory, merging->in(TypeFunc::Memory));
440 return;
441 }
443 // The control flow for merging must have already been attached to the join region
444 // we need its index for the phis.
445 uint slot;
446 for (slot = 1; slot < join_region->req() ; slot ++ ) {
447 if (join_region->in(slot) == merging->in(TypeFunc::Control)) break;
448 }
449 assert(slot != join_region->req(), "edge must already exist");
451 MergeMemNode* join_m = join->in(TypeFunc::Memory)->as_MergeMem();
452 MergeMemNode* merging_m = merging->in(TypeFunc::Memory)->as_MergeMem();
454 // join_m should be an ancestor mergemem of merging
455 // Slow path memory comes from the current map (which is from a slow call)
456 // Fast path/null path memory comes from the call's input
458 // Merge the other fast-memory inputs with the new slow-default memory.
459 // for (MergeMemStream mms(merged_memory(), fast_mem->as_MergeMem()); mms.next_non_empty2(); ) {
460 for (MergeMemStream mms(join_m, merging_m); mms.next_non_empty2(); ) {
461 Node* join_slice = mms.force_memory();
462 Node* merging_slice = mms.memory2();
463 if (join_slice != merging_slice) {
464 PhiNode* phi;
465 // bool new_phi = false;
466 // Is the phi for this slice one that we created for this join region or simply
467 // one we copied? If it is ours then add
468 if (join_slice->is_Phi() && join_slice->as_Phi()->region() == join_region) {
469 phi = join_slice->as_Phi();
470 } else {
471 // create the phi with join_slice filling supplying memory for all of the
472 // control edges to the join region
473 phi = PhiNode::make(join_region, join_slice, Type::MEMORY, mms.adr_type(C));
474 phi = (PhiNode*) delay_transform(phi);
475 // gvn().set_type(phi, Type::MEMORY);
476 // new_phi = true;
477 }
478 // Now update the phi with the slice for the merging slice
479 phi->set_req(slot, merging_slice/* slow_path, slow_slice */);
480 // this updates join_m with the phi
481 mms.set_memory(phi);
482 }
483 }
485 Node* join_io = join->in(TypeFunc::I_O);
486 Node* merging_io = merging->in(TypeFunc::I_O);
487 if (join_io != merging_io) {
488 PhiNode* phi;
489 if (join_io->is_Phi() && join_io->as_Phi()->region() == join_region) {
490 phi = join_io->as_Phi();
491 } else {
492 phi = PhiNode::make(join_region, join_io, Type::ABIO);
493 phi = (PhiNode*) delay_transform(phi);
494 join->set_req(TypeFunc::I_O, phi);
495 }
496 phi->set_req(slot, merging_io);
497 }
498 }
501 //----------------------------- make_call ----------------------------
502 // Trivial runtime call
503 void IdealKit::make_leaf_call(const TypeFunc *slow_call_type,
504 address slow_call,
505 const char *leaf_name,
506 Node* parm0,
507 Node* parm1,
508 Node* parm2,
509 Node* parm3) {
511 // We only handle taking in RawMem and modifying RawMem
512 const TypePtr* adr_type = TypeRawPtr::BOTTOM;
513 uint adr_idx = C->get_alias_index(adr_type);
515 // Slow-path leaf call
516 int size = slow_call_type->domain()->cnt();
517 CallNode *call = (CallNode*)new (C, size) CallLeafNode( slow_call_type, slow_call, leaf_name, adr_type);
519 // Set fixed predefined input arguments
520 call->init_req( TypeFunc::Control, ctrl() );
521 call->init_req( TypeFunc::I_O , top() ) ; // does no i/o
522 // Narrow memory as only memory input
523 call->init_req( TypeFunc::Memory , memory(adr_idx));
524 call->init_req( TypeFunc::FramePtr, top() /* frameptr() */ );
525 call->init_req( TypeFunc::ReturnAdr, top() );
527 if (parm0 != NULL) call->init_req(TypeFunc::Parms+0, parm0);
528 if (parm1 != NULL) call->init_req(TypeFunc::Parms+1, parm1);
529 if (parm2 != NULL) call->init_req(TypeFunc::Parms+2, parm2);
530 if (parm3 != NULL) call->init_req(TypeFunc::Parms+3, parm3);
532 // Node *c = _gvn.transform(call);
533 call = (CallNode *) _gvn.transform(call);
534 Node *c = call; // dbx gets confused with call call->dump()
536 // Slow leaf call has no side-effects, sets few values
538 set_ctrl(transform( new (C, 1) ProjNode(call,TypeFunc::Control) ));
540 // Make memory for the call
541 Node* mem = _gvn.transform( new (C, 1) ProjNode(call, TypeFunc::Memory) );
543 // Set the RawPtr memory state only.
544 set_memory(mem, adr_idx);
546 assert(C->alias_type(call->adr_type()) == C->alias_type(adr_type),
547 "call node must be constructed correctly");
548 }
551 void IdealKit::make_leaf_call_no_fp(const TypeFunc *slow_call_type,
552 address slow_call,
553 const char *leaf_name,
554 const TypePtr* adr_type,
555 Node* parm0,
556 Node* parm1,
557 Node* parm2,
558 Node* parm3) {
560 // We only handle taking in RawMem and modifying RawMem
561 uint adr_idx = C->get_alias_index(adr_type);
563 // Slow-path leaf call
564 int size = slow_call_type->domain()->cnt();
565 CallNode *call = (CallNode*)new (C, size) CallLeafNoFPNode( slow_call_type, slow_call, leaf_name, adr_type);
567 // Set fixed predefined input arguments
568 call->init_req( TypeFunc::Control, ctrl() );
569 call->init_req( TypeFunc::I_O , top() ) ; // does no i/o
570 // Narrow memory as only memory input
571 call->init_req( TypeFunc::Memory , memory(adr_idx));
572 call->init_req( TypeFunc::FramePtr, top() /* frameptr() */ );
573 call->init_req( TypeFunc::ReturnAdr, top() );
575 if (parm0 != NULL) call->init_req(TypeFunc::Parms+0, parm0);
576 if (parm1 != NULL) call->init_req(TypeFunc::Parms+1, parm1);
577 if (parm2 != NULL) call->init_req(TypeFunc::Parms+2, parm2);
578 if (parm3 != NULL) call->init_req(TypeFunc::Parms+3, parm3);
580 // Node *c = _gvn.transform(call);
581 call = (CallNode *) _gvn.transform(call);
582 Node *c = call; // dbx gets confused with call call->dump()
584 // Slow leaf call has no side-effects, sets few values
586 set_ctrl(transform( new (C, 1) ProjNode(call,TypeFunc::Control) ));
588 // Make memory for the call
589 Node* mem = _gvn.transform( new (C, 1) ProjNode(call, TypeFunc::Memory) );
591 // Set the RawPtr memory state only.
592 set_memory(mem, adr_idx);
594 assert(C->alias_type(call->adr_type()) == C->alias_type(adr_type),
595 "call node must be constructed correctly");
596 }