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Issue 294223003: Last cross-platform cleanup in preparation of improved ARM code for indexed (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 7 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, 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 // The intrinsic code below is executed before a method has built its frame. 5 // The intrinsic code below is executed before a method has built its frame.
6 // The return address is on the stack and the arguments below it. 6 // The return address is on the stack and the arguments below it.
7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved.
8 // Each intrinsification method returns true if the corresponding 8 // Each intrinsification method returns true if the corresponding
9 // Dart method was intrinsified. 9 // Dart method was intrinsified.
10 10
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1241 ASSERT(!random_A_field.IsNull()); 1241 ASSERT(!random_A_field.IsNull());
1242 ASSERT(random_A_field.is_const()); 1242 ASSERT(random_A_field.is_const());
1243 const Instance& a_value = Instance::Handle(random_A_field.value()); 1243 const Instance& a_value = Instance::Handle(random_A_field.value());
1244 const int64_t a_int_value = Integer::Cast(a_value).AsInt64Value(); 1244 const int64_t a_int_value = Integer::Cast(a_value).AsInt64Value();
1245 // 'a_int_value' is a mask. 1245 // 'a_int_value' is a mask.
1246 ASSERT(Utils::IsUint(32, a_int_value)); 1246 ASSERT(Utils::IsUint(32, a_int_value));
1247 int32_t a_int32_value = static_cast<int32_t>(a_int_value); 1247 int32_t a_int32_value = static_cast<int32_t>(a_int_value);
1248 __ movl(EAX, Address(ESP, + 1 * kWordSize)); // Receiver. 1248 __ movl(EAX, Address(ESP, + 1 * kWordSize)); // Receiver.
1249 __ movl(EBX, FieldAddress(EAX, state_field.Offset())); // Field '_state'. 1249 __ movl(EBX, FieldAddress(EAX, state_field.Offset())); // Field '_state'.
1250 // Addresses of _state[0] and _state[1]. 1250 // Addresses of _state[0] and _state[1].
1251 const intptr_t index_scale = 1251 const intptr_t scale = Instance::ElementSizeFor(kTypedDataUint32ArrayCid);
1252 FlowGraphCompiler::ElementSizeFor(kTypedDataUint32ArrayCid); 1252 const intptr_t offset = Instance::DataOffsetFor(kTypedDataUint32ArrayCid);
1253 const intptr_t offset = 1253 Address addr_0 = FieldAddress(EBX, 0 * scale + offset);
1254 FlowGraphCompiler::DataOffsetFor(kTypedDataUint32ArrayCid); 1254 Address addr_1 = FieldAddress(EBX, 1 * scale + offset);
1255 Address addr_0 = FieldAddress(EBX, 0 * index_scale + offset);
1256 Address addr_1 = FieldAddress(EBX, 1 * index_scale + offset);
1257 __ movl(EAX, Immediate(a_int32_value)); 1255 __ movl(EAX, Immediate(a_int32_value));
1258 // 64-bit multiply EAX * value -> EDX:EAX. 1256 // 64-bit multiply EAX * value -> EDX:EAX.
1259 __ mull(addr_0); 1257 __ mull(addr_0);
1260 __ addl(EAX, addr_1); 1258 __ addl(EAX, addr_1);
1261 __ adcl(EDX, Immediate(0)); 1259 __ adcl(EDX, Immediate(0));
1262 __ movl(addr_1, EDX); 1260 __ movl(addr_1, EDX);
1263 __ movl(addr_0, EAX); 1261 __ movl(addr_0, EAX);
1264 __ ret(); 1262 __ ret();
1265 } 1263 }
1266 1264
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1671 Isolate::current_tag_offset()); 1669 Isolate::current_tag_offset());
1672 // Set return value to Isolate::current_tag_. 1670 // Set return value to Isolate::current_tag_.
1673 __ movl(EAX, current_tag_addr); 1671 __ movl(EAX, current_tag_addr);
1674 __ ret(); 1672 __ ret();
1675 } 1673 }
1676 1674
1677 #undef __ 1675 #undef __
1678 } // namespace dart 1676 } // namespace dart
1679 1677
1680 #endif // defined TARGET_ARCH_IA32 1678 #endif // defined TARGET_ARCH_IA32
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