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Side by Side Diff: runtime/vm/stub_code_ia32.cc

Issue 8347008: Address review comments of previously submitted cl 8329005. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 9 years, 2 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/globals.h" 5 #include "vm/globals.h"
6 #if defined(TARGET_ARCH_IA32) 6 #if defined(TARGET_ARCH_IA32)
7 7
8 #include "vm/code_generator.h" 8 #include "vm/code_generator.h"
9 #include "vm/compiler.h" 9 #include "vm/compiler.h"
10 #include "vm/object_store.h" 10 #include "vm/object_store.h"
(...skipping 1240 matching lines...) Expand 10 before | Expand all | Expand 10 after
1251 void StubCode::GenerateAllocationStubForClosure(Assembler* assembler, 1251 void StubCode::GenerateAllocationStubForClosure(Assembler* assembler,
1252 const Function& func) { 1252 const Function& func) {
1253 const Immediate raw_null = 1253 const Immediate raw_null =
1254 Immediate(reinterpret_cast<intptr_t>(Object::null())); 1254 Immediate(reinterpret_cast<intptr_t>(Object::null()));
1255 ASSERT(func.IsClosureFunction()); 1255 ASSERT(func.IsClosureFunction());
1256 const bool is_implicit_static_closure = 1256 const bool is_implicit_static_closure =
1257 func.IsImplicitStaticClosureFunction(); 1257 func.IsImplicitStaticClosureFunction();
1258 const bool is_implicit_instance_closure = 1258 const bool is_implicit_instance_closure =
1259 func.IsImplicitInstanceClosureFunction(); 1259 func.IsImplicitInstanceClosureFunction();
1260 const Class& cls = Class::ZoneHandle(func.signature_class()); 1260 const Class& cls = Class::ZoneHandle(func.signature_class());
1261 const bool is_cls_parameterized = cls.NumTypeArguments() > 0; 1261 const bool has_type_arguments = cls.HasTypeArguments();
1262 const intptr_t kTypeArgumentsOffset = 1 * kWordSize; 1262 const intptr_t kTypeArgumentsOffset = 1 * kWordSize;
1263 const intptr_t kReceiverOffset = (is_cls_parameterized ? 2 : 1) * kWordSize; 1263 const intptr_t kReceiverOffset = (has_type_arguments ? 2 : 1) * kWordSize;
1264 const intptr_t closure_size = Closure::InstanceSize(); 1264 const intptr_t closure_size = Closure::InstanceSize();
1265 const intptr_t context_size = Context::InstanceSize(1); // Captured receiver. 1265 const intptr_t context_size = Context::InstanceSize(1); // Captured receiver.
1266 if (FLAG_inline_alloc && 1266 if (FLAG_inline_alloc &&
1267 PageSpace::IsPageAllocatableSize(closure_size + context_size)) { 1267 PageSpace::IsPageAllocatableSize(closure_size + context_size)) {
1268 Label slow_case; 1268 Label slow_case;
1269 Heap* heap = Isolate::Current()->heap(); 1269 Heap* heap = Isolate::Current()->heap();
1270 __ movl(EAX, Address::Absolute(heap->TopAddress())); 1270 __ movl(EAX, Address::Absolute(heap->TopAddress()));
1271 __ leal(EBX, Address(EAX, closure_size)); 1271 __ leal(EBX, Address(EAX, closure_size));
1272 if (is_implicit_instance_closure) { 1272 if (is_implicit_instance_closure) {
1273 __ movl(ECX, EBX); // ECX: new context address. 1273 __ movl(ECX, EBX); // ECX: new context address.
(...skipping 53 matching lines...) Expand 10 before | Expand all | Expand 10 after
1327 __ movl(Address(ECX, Context::variable_offset(0)), EDX); 1327 __ movl(Address(ECX, Context::variable_offset(0)), EDX);
1328 1328
1329 // Set the newly allocated context in the newly allocated closure. 1329 // Set the newly allocated context in the newly allocated closure.
1330 __ addl(ECX, Immediate(kHeapObjectTag)); 1330 __ addl(ECX, Immediate(kHeapObjectTag));
1331 __ movl(Address(EAX, Closure::context_offset()), ECX); 1331 __ movl(Address(EAX, Closure::context_offset()), ECX);
1332 } else { 1332 } else {
1333 __ movl(Address(EAX, Closure::context_offset()), CTX); 1333 __ movl(Address(EAX, Closure::context_offset()), CTX);
1334 } 1334 }
1335 1335
1336 // Set the type arguments field in the newly allocated closure. 1336 // Set the type arguments field in the newly allocated closure.
1337 if (is_cls_parameterized) { 1337 if (has_type_arguments) {
1338 ASSERT(!is_implicit_static_closure); 1338 ASSERT(!is_implicit_static_closure);
1339 // Use the passed-in type arguments. 1339 // Use the passed-in type arguments.
1340 __ movl(EDX, Address(ESP, kTypeArgumentsOffset)); 1340 __ movl(EDX, Address(ESP, kTypeArgumentsOffset));
1341 __ movl(Address(EAX, Closure::type_arguments_offset()), EDX); 1341 __ movl(Address(EAX, Closure::type_arguments_offset()), EDX);
1342 } else { 1342 } else {
1343 // Set to null. 1343 // Set to null.
1344 __ movl(Address(EAX, Closure::type_arguments_offset()), raw_null); 1344 __ movl(Address(EAX, Closure::type_arguments_offset()), raw_null);
1345 } 1345 }
1346 1346
1347 __ movl(Address(EAX, Closure::smrck_offset()), raw_null); 1347 __ movl(Address(EAX, Closure::smrck_offset()), raw_null);
1348 1348
1349 // Done allocating and initializing the instance. 1349 // Done allocating and initializing the instance.
1350 // EAX: new object. 1350 // EAX: new object.
1351 __ addl(EAX, Immediate(kHeapObjectTag)); 1351 __ addl(EAX, Immediate(kHeapObjectTag));
1352 __ ret(); 1352 __ ret();
1353 1353
1354 __ Bind(&slow_case); 1354 __ Bind(&slow_case);
1355 } 1355 }
1356 if (is_cls_parameterized) { 1356 if (has_type_arguments) {
1357 __ movl(ECX, Address(ESP, kTypeArgumentsOffset)); 1357 __ movl(ECX, Address(ESP, kTypeArgumentsOffset));
1358 } 1358 }
1359 if (is_implicit_instance_closure) { 1359 if (is_implicit_instance_closure) {
1360 __ movl(EAX, Address(ESP, kReceiverOffset)); 1360 __ movl(EAX, Address(ESP, kReceiverOffset));
1361 } 1361 }
1362 // Create a stub frame. 1362 // Create a stub frame.
1363 __ EnterFrame(0); 1363 __ EnterFrame(0);
1364 const Closure& new_closure = Closure::ZoneHandle(); 1364 const Closure& new_closure = Closure::ZoneHandle();
1365 __ PushObject(new_closure); // Push Null closure for return value. 1365 __ PushObject(new_closure); // Push Null closure for return value.
1366 __ PushObject(func); 1366 __ PushObject(func);
1367 if (is_cls_parameterized) { 1367 if (has_type_arguments) {
1368 __ pushl(ECX); // Push type arguments of closure to be allocated. 1368 __ pushl(ECX); // Push type arguments of closure to be allocated.
1369 } else { 1369 } else {
1370 __ pushl(raw_null); // Push null type arguments. 1370 __ pushl(raw_null); // Push null type arguments.
1371 } 1371 }
1372 if (is_implicit_static_closure) { 1372 if (is_implicit_static_closure) {
1373 __ CallRuntimeFromStub(kAllocateImplicitStaticClosureRuntimeEntry); 1373 __ CallRuntimeFromStub(kAllocateImplicitStaticClosureRuntimeEntry);
1374 } else if (is_implicit_instance_closure) { 1374 } else if (is_implicit_instance_closure) {
1375 __ pushl(EAX); // Receiver. 1375 __ pushl(EAX); // Receiver.
1376 __ CallRuntimeFromStub(kAllocateImplicitInstanceClosureRuntimeEntry); 1376 __ CallRuntimeFromStub(kAllocateImplicitInstanceClosureRuntimeEntry);
1377 __ popl(EAX); // Pop receiver. 1377 __ popl(EAX); // Pop receiver.
(...skipping 67 matching lines...) Expand 10 before | Expand all | Expand 10 after
1445 __ popl(EAX); // Get result into EAX. 1445 __ popl(EAX); // Get result into EAX.
1446 1446
1447 // Remove the stub frame as we are about to return. 1447 // Remove the stub frame as we are about to return.
1448 __ LeaveFrame(); 1448 __ LeaveFrame();
1449 __ ret(); 1449 __ ret();
1450 } 1450 }
1451 1451
1452 } // namespace dart 1452 } // namespace dart
1453 1453
1454 #endif // defined TARGET_ARCH_IA32 1454 #endif // defined TARGET_ARCH_IA32
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