Mercurial > hg > truffle
annotate src/share/vm/opto/idealKit.cpp @ 851:fc4be448891f
6851742: (EA) allocation elimination doesn't work with UseG1GC
Summary: Fix eliminate_card_mark() to eliminate G1 pre/post barriers.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Thu, 16 Jul 2009 14:10:42 -0700 |
| parents | d1605aabd0a1 |
| children | 89e0543e1737 685e959d09ea |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 2005-2008 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/_idealKit.cpp.incl" | |
| 27 | |
| 28 // Static initialization | |
| 29 | |
| 30 // This declares the position where vars are kept in the cvstate | |
| 31 // For some degree of consistency we use the TypeFunc enum to | |
| 32 // soak up spots in the inputs even though we only use early Control | |
| 33 // and Memory slots. (So far.) | |
| 34 const uint IdealKit::first_var = TypeFunc::Parms + 1; | |
| 35 | |
| 36 //----------------------------IdealKit----------------------------------------- | |
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37 IdealKit::IdealKit(PhaseGVN &gvn, Node* control, Node* mem, bool delay_all_transforms, bool has_declarations) : |
| 0 | 38 _gvn(gvn), C(gvn.C) { |
| 39 _initial_ctrl = control; | |
| 40 _initial_memory = mem; | |
| 41 _delay_all_transforms = delay_all_transforms; | |
| 42 _var_ct = 0; | |
| 43 _cvstate = NULL; | |
| 44 // We can go memory state free or else we need the entire memory state | |
| 45 assert(mem == NULL || mem->Opcode() == Op_MergeMem, "memory must be pre-split"); | |
| 46 int init_size = 5; | |
| 47 _pending_cvstates = new (C->node_arena()) GrowableArray<Node*>(C->node_arena(), init_size, 0, 0); | |
| 48 _delay_transform = new (C->node_arena()) GrowableArray<Node*>(C->node_arena(), init_size, 0, 0); | |
| 49 DEBUG_ONLY(_state = new (C->node_arena()) GrowableArray<int>(C->node_arena(), init_size, 0, 0)); | |
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50 if (!has_declarations) { |
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51 declarations_done(); |
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52 } |
| 0 | 53 } |
| 54 | |
| 55 //-------------------------------if_then------------------------------------- | |
| 56 // Create: if(left relop right) | |
| 57 // / \ | |
| 58 // iffalse iftrue | |
| 59 // Push the iffalse cvstate onto the stack. The iftrue becomes the current cvstate. | |
| 60 void IdealKit::if_then(Node* left, BoolTest::mask relop, | |
| 61 Node* right, float prob, float cnt, bool push_new_state) { | |
| 62 assert((state() & (BlockS|LoopS|IfThenS|ElseS)), "bad state for new If"); | |
| 63 Node* bol; | |
| 64 if (left->bottom_type()->isa_ptr() == NULL) { | |
| 65 if (left->bottom_type()->isa_int() != NULL) { | |
| 66 bol = Bool(CmpI(left, right), relop); | |
| 67 } else { | |
| 68 assert(left->bottom_type()->isa_long() != NULL, "what else?"); | |
| 69 bol = Bool(CmpL(left, right), relop); | |
| 70 } | |
| 71 | |
| 72 } else { | |
| 73 bol = Bool(CmpP(left, right), relop); | |
| 74 } | |
| 75 // Delay gvn.tranform on if-nodes until construction is finished | |
| 76 // to prevent a constant bool input from discarding a control output. | |
| 77 IfNode* iff = delay_transform(new (C, 2) IfNode(ctrl(), bol, prob, cnt))->as_If(); | |
| 78 Node* then = IfTrue(iff); | |
| 79 Node* elsen = IfFalse(iff); | |
| 80 Node* else_cvstate = copy_cvstate(); | |
| 81 else_cvstate->set_req(TypeFunc::Control, elsen); | |
| 82 _pending_cvstates->push(else_cvstate); | |
| 83 DEBUG_ONLY(if (push_new_state) _state->push(IfThenS)); | |
| 84 set_ctrl(then); | |
| 85 } | |
| 86 | |
| 87 //-------------------------------else_------------------------------------- | |
| 88 // Pop the else cvstate off the stack, and push the (current) then cvstate. | |
| 89 // The else cvstate becomes the current cvstate. | |
| 90 void IdealKit::else_() { | |
| 91 assert(state() == IfThenS, "bad state for new Else"); | |
| 92 Node* else_cvstate = _pending_cvstates->pop(); | |
| 93 DEBUG_ONLY(_state->pop()); | |
| 94 // save current (then) cvstate for later use at endif | |
| 95 _pending_cvstates->push(_cvstate); | |
| 96 DEBUG_ONLY(_state->push(ElseS)); | |
| 97 _cvstate = else_cvstate; | |
| 98 } | |
| 99 | |
| 100 //-------------------------------end_if------------------------------------- | |
| 101 // Merge the "then" and "else" cvstates. | |
| 102 // | |
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103 // The if_then() pushed a copy of the current state for later use |
| 0 | 104 // as the initial state for a future "else" clause. The |
| 105 // current state then became the initial state for the | |
| 106 // then clause. If an "else" clause was encountered, it will | |
| 107 // pop the top state and use it for it's initial state. | |
| 108 // It will also push the current state (the state at the end of | |
| 109 // the "then" clause) for latter use at the end_if. | |
| 110 // | |
| 111 // At the endif, the states are: | |
| 112 // 1) else exists a) current state is end of "else" clause | |
| 113 // b) top stack state is end of "then" clause | |
| 114 // | |
| 115 // 2) no else: a) current state is end of "then" clause | |
| 116 // b) top stack state is from the "if_then" which | |
| 117 // would have been the initial state of the else. | |
| 118 // | |
| 119 // Merging the states is accomplished by: | |
| 120 // 1) make a label for the merge | |
| 121 // 2) terminate the current state with a goto to the label | |
| 122 // 3) pop the top state from the stack and make it the | |
| 123 // current state | |
| 124 // 4) bind the label at the current state. Binding a label | |
| 125 // terminates the current state with a goto to the | |
| 126 // label and makes the label's state the current state. | |
| 127 // | |
| 128 void IdealKit::end_if() { | |
| 129 assert(state() & (IfThenS|ElseS), "bad state for new Endif"); | |
| 130 Node* lab = make_label(1); | |
| 131 | |
| 132 // Node* join_state = _pending_cvstates->pop(); | |
| 133 /* merging, join */ | |
| 134 goto_(lab); | |
| 135 _cvstate = _pending_cvstates->pop(); | |
| 136 | |
| 137 bind(lab); | |
| 138 DEBUG_ONLY(_state->pop()); | |
| 139 } | |
| 140 | |
| 141 //-------------------------------loop------------------------------------- | |
| 142 // Create the loop head portion (*) of: | |
| 143 // * iv = init | |
| 144 // * top: (region node) | |
| 145 // * if (iv relop limit) { | |
| 146 // loop body | |
| 147 // i = i + 1 | |
| 148 // goto top | |
| 149 // * } else // exits loop | |
| 150 // | |
| 151 // Pushes the loop top cvstate first, then the else (loop exit) cvstate | |
| 152 // onto the stack. | |
| 153 void IdealKit::loop(IdealVariable& iv, Node* init, BoolTest::mask relop, Node* limit, float prob, float cnt) { | |
| 154 assert((state() & (BlockS|LoopS|IfThenS|ElseS)), "bad state for new loop"); | |
| 155 set(iv, init); | |
| 156 Node* head = make_label(1); | |
| 157 bind(head); | |
| 158 _pending_cvstates->push(head); // push for use at end_loop | |
| 159 _cvstate = copy_cvstate(); | |
| 160 if_then(value(iv), relop, limit, prob, cnt, false /* no new state */); | |
| 161 DEBUG_ONLY(_state->push(LoopS)); | |
| 162 assert(ctrl()->is_IfTrue(), "true branch stays in loop"); | |
| 163 assert(_pending_cvstates->top()->in(TypeFunc::Control)->is_IfFalse(), "false branch exits loop"); | |
| 164 } | |
| 165 | |
| 166 //-------------------------------end_loop------------------------------------- | |
| 167 // Creates the goto top label. | |
| 168 // Expects the else (loop exit) cvstate to be on top of the | |
| 169 // stack, and the loop top cvstate to be 2nd. | |
| 170 void IdealKit::end_loop() { | |
| 171 assert((state() == LoopS), "bad state for new end_loop"); | |
| 172 Node* exit = _pending_cvstates->pop(); | |
| 173 Node* head = _pending_cvstates->pop(); | |
| 174 goto_(head); | |
| 175 clear(head); | |
| 176 DEBUG_ONLY(_state->pop()); | |
| 177 _cvstate = exit; | |
| 178 } | |
| 179 | |
| 180 //-------------------------------make_label------------------------------------- | |
| 181 // Creates a label. The number of goto's | |
| 182 // must be specified (which should be 1 less than | |
| 183 // the number of precedessors.) | |
| 184 Node* IdealKit::make_label(int goto_ct) { | |
| 185 assert(_cvstate != NULL, "must declare variables before labels"); | |
| 186 Node* lab = new_cvstate(); | |
| 187 int sz = 1 + goto_ct + 1 /* fall thru */; | |
| 188 Node* reg = delay_transform(new (C, sz) RegionNode(sz)); | |
| 189 lab->init_req(TypeFunc::Control, reg); | |
| 190 return lab; | |
| 191 } | |
| 192 | |
| 193 //-------------------------------bind------------------------------------- | |
| 194 // Bind a label at the current cvstate by simulating | |
| 195 // a goto to the label. | |
| 196 void IdealKit::bind(Node* lab) { | |
| 197 goto_(lab, true /* bind */); | |
| 198 _cvstate = lab; | |
| 199 } | |
| 200 | |
| 201 //-------------------------------goto_------------------------------------- | |
| 202 // Make the current cvstate a predecessor of the label, | |
| 203 // creating phi's to merge values. If bind is true and | |
| 204 // this is not the last control edge, then ensure that | |
| 205 // all live values have phis created. Used to create phis | |
| 206 // at loop-top regions. | |
| 207 void IdealKit::goto_(Node* lab, bool bind) { | |
| 208 Node* reg = lab->in(TypeFunc::Control); | |
| 209 // find next empty slot in region | |
| 210 uint slot = 1; | |
| 211 while (slot < reg->req() && reg->in(slot) != NULL) slot++; | |
| 212 assert(slot < reg->req(), "too many gotos"); | |
| 213 // If this is last predecessor, then don't force phi creation | |
| 214 if (slot == reg->req() - 1) bind = false; | |
| 215 reg->init_req(slot, ctrl()); | |
| 216 assert(first_var + _var_ct == _cvstate->req(), "bad _cvstate size"); | |
| 217 for (uint i = first_var; i < _cvstate->req(); i++) { | |
| 218 | |
| 219 // l is the value of var reaching the label. Could be a single value | |
| 220 // reaching the label, or a phi that merges multiples values reaching | |
| 221 // the label. The latter is true if the label's input: in(..) is | |
| 222 // a phi whose control input is the region node for the label. | |
| 223 | |
| 224 Node* l = lab->in(i); | |
| 225 // Get the current value of the var | |
| 226 Node* m = _cvstate->in(i); | |
| 227 // If the var went unused no need for a phi | |
| 228 if (m == NULL) { | |
| 229 continue; | |
| 230 } else if (l == NULL || m == l) { | |
| 231 // Only one unique value "m" is known to reach this label so a phi | |
| 232 // is not yet necessary unless: | |
| 233 // the label is being bound and all predecessors have not been seen, | |
| 234 // in which case "bind" will be true. | |
| 235 if (bind) { | |
| 236 m = promote_to_phi(m, reg); | |
| 237 } | |
| 238 // Record the phi/value used for this var in the label's cvstate | |
| 239 lab->set_req(i, m); | |
| 240 } else { | |
| 241 // More than one value for the variable reaches this label so | |
| 242 // a create a phi if one does not already exist. | |
| 243 if (!was_promoted_to_phi(l, reg)) { | |
| 244 l = promote_to_phi(l, reg); | |
| 245 lab->set_req(i, l); | |
| 246 } | |
| 247 // Record in the phi, the var's value from the current state | |
| 248 l->set_req(slot, m); | |
| 249 } | |
| 250 } | |
| 251 do_memory_merge(_cvstate, lab); | |
| 252 stop(); | |
| 253 } | |
| 254 | |
| 255 //-----------------------------promote_to_phi----------------------------------- | |
| 256 Node* IdealKit::promote_to_phi(Node* n, Node* reg) { | |
| 257 assert(!was_promoted_to_phi(n, reg), "n already promoted to phi on this region"); | |
| 258 // Get a conservative type for the phi | |
| 259 const BasicType bt = n->bottom_type()->basic_type(); | |
| 260 const Type* ct = Type::get_const_basic_type(bt); | |
| 261 return delay_transform(PhiNode::make(reg, n, ct)); | |
| 262 } | |
| 263 | |
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264 //-----------------------------declarations_done------------------------------- |
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265 void IdealKit::declarations_done() { |
| 0 | 266 _cvstate = new_cvstate(); // initialize current cvstate |
| 267 set_ctrl(_initial_ctrl); // initialize control in current cvstate | |
| 268 set_all_memory(_initial_memory);// initialize memory in current cvstate | |
| 269 DEBUG_ONLY(_state->push(BlockS)); | |
| 270 } | |
| 271 | |
| 272 //-----------------------------transform----------------------------------- | |
| 273 Node* IdealKit::transform(Node* n) { | |
| 274 if (_delay_all_transforms) { | |
| 275 return delay_transform(n); | |
| 276 } else { | |
| 277 return gvn().transform(n); | |
| 278 } | |
| 279 } | |
| 280 | |
| 281 //-----------------------------delay_transform----------------------------------- | |
| 282 Node* IdealKit::delay_transform(Node* n) { | |
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283 if (!gvn().is_IterGVN() || !gvn().is_IterGVN()->delay_transform()) { |
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284 gvn().set_type(n, n->bottom_type()); |
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285 } |
| 0 | 286 _delay_transform->push(n); |
| 287 return n; | |
| 288 } | |
| 289 | |
| 290 //-----------------------------new_cvstate----------------------------------- | |
| 291 Node* IdealKit::new_cvstate() { | |
| 292 uint sz = _var_ct + first_var; | |
| 293 return new (C, sz) Node(sz); | |
| 294 } | |
| 295 | |
| 296 //-----------------------------copy_cvstate----------------------------------- | |
| 297 Node* IdealKit::copy_cvstate() { | |
| 298 Node* ns = new_cvstate(); | |
| 299 for (uint i = 0; i < ns->req(); i++) ns->init_req(i, _cvstate->in(i)); | |
| 300 // We must clone memory since it will be updated as we do stores. | |
| 301 ns->set_req(TypeFunc::Memory, MergeMemNode::make(C, ns->in(TypeFunc::Memory))); | |
| 302 return ns; | |
| 303 } | |
| 304 | |
| 305 //-----------------------------clear----------------------------------- | |
| 306 void IdealKit::clear(Node* m) { | |
| 307 for (uint i = 0; i < m->req(); i++) m->set_req(i, NULL); | |
| 308 } | |
| 309 | |
| 310 //-----------------------------drain_delay_transform---------------------------- | |
| 311 void IdealKit::drain_delay_transform() { | |
| 312 while (_delay_transform->length() > 0) { | |
| 313 Node* n = _delay_transform->pop(); | |
| 314 gvn().transform(n); | |
| 315 if (!gvn().is_IterGVN()) { | |
| 316 C->record_for_igvn(n); | |
| 317 } | |
| 318 } | |
| 319 } | |
| 320 | |
| 321 //-----------------------------IdealVariable---------------------------- | |
| 322 IdealVariable::IdealVariable(IdealKit &k) { | |
| 323 k.declare(this); | |
| 324 } | |
| 325 | |
| 326 Node* IdealKit::memory(uint alias_idx) { | |
| 327 MergeMemNode* mem = merged_memory(); | |
| 328 Node* p = mem->memory_at(alias_idx); | |
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329 if (!gvn().is_IterGVN() || !gvn().is_IterGVN()->delay_transform()) { |
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330 _gvn.set_type(p, Type::MEMORY); // must be mapped |
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331 } |
| 0 | 332 return p; |
| 333 } | |
| 334 | |
| 335 void IdealKit::set_memory(Node* mem, uint alias_idx) { | |
| 336 merged_memory()->set_memory_at(alias_idx, mem); | |
| 337 } | |
| 338 | |
| 339 //----------------------------- make_load ---------------------------- | |
| 340 Node* IdealKit::load(Node* ctl, | |
| 341 Node* adr, | |
| 342 const Type* t, | |
| 343 BasicType bt, | |
| 344 int adr_idx, | |
| 345 bool require_atomic_access) { | |
| 346 | |
| 347 assert(adr_idx != Compile::AliasIdxTop, "use other make_load factory" ); | |
| 348 const TypePtr* adr_type = NULL; // debug-mode-only argument | |
| 349 debug_only(adr_type = C->get_adr_type(adr_idx)); | |
| 350 Node* mem = memory(adr_idx); | |
| 351 Node* ld; | |
| 352 if (require_atomic_access && bt == T_LONG) { | |
| 353 ld = LoadLNode::make_atomic(C, ctl, mem, adr, adr_type, t); | |
| 354 } else { | |
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355 ld = LoadNode::make(_gvn, ctl, mem, adr, adr_type, t, bt); |
| 0 | 356 } |
| 357 return transform(ld); | |
| 358 } | |
| 359 | |
| 360 Node* IdealKit::store(Node* ctl, Node* adr, Node *val, BasicType bt, | |
| 361 int adr_idx, | |
| 362 bool require_atomic_access) { | |
| 363 assert(adr_idx != Compile::AliasIdxTop, "use other store_to_memory factory" ); | |
| 364 const TypePtr* adr_type = NULL; | |
| 365 debug_only(adr_type = C->get_adr_type(adr_idx)); | |
| 366 Node *mem = memory(adr_idx); | |
| 367 Node* st; | |
| 368 if (require_atomic_access && bt == T_LONG) { | |
| 369 st = StoreLNode::make_atomic(C, ctl, mem, adr, adr_type, val); | |
| 370 } else { | |
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371 st = StoreNode::make(_gvn, ctl, mem, adr, adr_type, val, bt); |
| 0 | 372 } |
| 373 st = transform(st); | |
| 374 set_memory(st, adr_idx); | |
| 375 | |
| 376 return st; | |
| 377 } | |
| 378 | |
| 379 // Card mark store. Must be ordered so that it will come after the store of | |
| 380 // the oop. | |
| 381 Node* IdealKit::storeCM(Node* ctl, Node* adr, Node *val, Node* oop_store, | |
| 382 BasicType bt, | |
| 383 int adr_idx) { | |
| 384 assert(adr_idx != Compile::AliasIdxTop, "use other store_to_memory factory" ); | |
| 385 const TypePtr* adr_type = NULL; | |
| 386 debug_only(adr_type = C->get_adr_type(adr_idx)); | |
| 387 Node *mem = memory(adr_idx); | |
| 388 | |
| 389 // Add required edge to oop_store, optimizer does not support precedence edges. | |
| 390 // Convert required edge to precedence edge before allocation. | |
| 391 Node* st = new (C, 5) StoreCMNode(ctl, mem, adr, adr_type, val, oop_store); | |
| 392 | |
| 393 st = transform(st); | |
| 394 set_memory(st, adr_idx); | |
| 395 | |
| 396 return st; | |
| 397 } | |
| 398 | |
| 399 //---------------------------- do_memory_merge -------------------------------- | |
| 400 // The memory from one merging cvstate needs to be merged with the memory for another | |
| 401 // join cvstate. If the join cvstate doesn't have a merged memory yet then we | |
| 402 // can just copy the state from the merging cvstate | |
| 403 | |
| 404 // Merge one slow path into the rest of memory. | |
| 405 void IdealKit::do_memory_merge(Node* merging, Node* join) { | |
| 406 | |
| 407 // Get the region for the join state | |
| 408 Node* join_region = join->in(TypeFunc::Control); | |
| 409 assert(join_region != NULL, "join region must exist"); | |
| 410 if (join->in(TypeFunc::Memory) == NULL ) { | |
| 411 join->set_req(TypeFunc::Memory, merging->in(TypeFunc::Memory)); | |
| 412 return; | |
| 413 } | |
| 414 | |
| 415 // The control flow for merging must have already been attached to the join region | |
| 416 // we need its index for the phis. | |
| 417 uint slot; | |
| 418 for (slot = 1; slot < join_region->req() ; slot ++ ) { | |
| 419 if (join_region->in(slot) == merging->in(TypeFunc::Control)) break; | |
| 420 } | |
| 421 assert(slot != join_region->req(), "edge must already exist"); | |
| 422 | |
| 423 MergeMemNode* join_m = join->in(TypeFunc::Memory)->as_MergeMem(); | |
| 424 MergeMemNode* merging_m = merging->in(TypeFunc::Memory)->as_MergeMem(); | |
| 425 | |
| 426 // join_m should be an ancestor mergemem of merging | |
| 427 // Slow path memory comes from the current map (which is from a slow call) | |
| 428 // Fast path/null path memory comes from the call's input | |
| 429 | |
| 430 // Merge the other fast-memory inputs with the new slow-default memory. | |
| 431 // for (MergeMemStream mms(merged_memory(), fast_mem->as_MergeMem()); mms.next_non_empty2(); ) { | |
| 432 for (MergeMemStream mms(join_m, merging_m); mms.next_non_empty2(); ) { | |
| 433 Node* join_slice = mms.force_memory(); | |
| 434 Node* merging_slice = mms.memory2(); | |
| 435 if (join_slice != merging_slice) { | |
| 436 PhiNode* phi; | |
| 437 // bool new_phi = false; | |
| 438 // Is the phi for this slice one that we created for this join region or simply | |
| 439 // one we copied? If it is ours then add | |
| 440 if (join_slice->is_Phi() && join_slice->as_Phi()->region() == join_region) { | |
| 441 phi = join_slice->as_Phi(); | |
| 442 } else { | |
| 443 // create the phi with join_slice filling supplying memory for all of the | |
| 444 // control edges to the join region | |
| 445 phi = PhiNode::make(join_region, join_slice, Type::MEMORY, mms.adr_type(C)); | |
| 446 phi = (PhiNode*) delay_transform(phi); | |
| 447 // gvn().set_type(phi, Type::MEMORY); | |
| 448 // new_phi = true; | |
| 449 } | |
| 450 // Now update the phi with the slice for the merging slice | |
| 451 phi->set_req(slot, merging_slice/* slow_path, slow_slice */); | |
| 452 // this updates join_m with the phi | |
| 453 mms.set_memory(phi); | |
| 454 } | |
| 455 } | |
| 456 } | |
| 457 | |
| 458 | |
| 459 //----------------------------- make_call ---------------------------- | |
| 460 // Trivial runtime call | |
| 461 void IdealKit::make_leaf_call(const TypeFunc *slow_call_type, | |
| 462 address slow_call, | |
| 463 const char *leaf_name, | |
| 464 Node* parm0, | |
| 465 Node* parm1, | |
| 466 Node* parm2) { | |
| 467 | |
| 468 // We only handle taking in RawMem and modifying RawMem | |
| 469 const TypePtr* adr_type = TypeRawPtr::BOTTOM; | |
| 470 uint adr_idx = C->get_alias_index(adr_type); | |
| 471 | |
| 472 // Slow-path leaf call | |
| 473 int size = slow_call_type->domain()->cnt(); | |
| 474 CallNode *call = (CallNode*)new (C, size) CallLeafNode( slow_call_type, slow_call, leaf_name, adr_type); | |
| 475 | |
| 476 // Set fixed predefined input arguments | |
| 477 call->init_req( TypeFunc::Control, ctrl() ); | |
| 478 call->init_req( TypeFunc::I_O , top() ) ; // does no i/o | |
| 479 // Narrow memory as only memory input | |
| 480 call->init_req( TypeFunc::Memory , memory(adr_idx)); | |
| 481 call->init_req( TypeFunc::FramePtr, top() /* frameptr() */ ); | |
| 482 call->init_req( TypeFunc::ReturnAdr, top() ); | |
| 483 | |
| 484 if (parm0 != NULL) call->init_req(TypeFunc::Parms+0, parm0); | |
| 485 if (parm1 != NULL) call->init_req(TypeFunc::Parms+1, parm1); | |
| 486 if (parm2 != NULL) call->init_req(TypeFunc::Parms+2, parm2); | |
| 487 | |
| 488 // Node *c = _gvn.transform(call); | |
| 489 call = (CallNode *) _gvn.transform(call); | |
| 490 Node *c = call; // dbx gets confused with call call->dump() | |
| 491 | |
| 492 // Slow leaf call has no side-effects, sets few values | |
| 493 | |
| 494 set_ctrl(transform( new (C, 1) ProjNode(call,TypeFunc::Control) )); | |
| 495 | |
| 496 // Make memory for the call | |
| 497 Node* mem = _gvn.transform( new (C, 1) ProjNode(call, TypeFunc::Memory) ); | |
| 498 | |
| 499 // Set the RawPtr memory state only. | |
| 500 set_memory(mem, adr_idx); | |
| 501 | |
| 502 assert(C->alias_type(call->adr_type()) == C->alias_type(adr_type), | |
| 503 "call node must be constructed correctly"); | |
| 504 } |