| OLD | NEW |
| 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 #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/assembler.h" | 8 #include "vm/assembler.h" |
| 9 #include "vm/compiler.h" | 9 #include "vm/compiler.h" |
| 10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
| (...skipping 668 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 679 // EAX: new object start as a tagged pointer. | 679 // EAX: new object start as a tagged pointer. |
| 680 // EBX: new object end address. | 680 // EBX: new object end address. |
| 681 // EDX: Array length as Smi. | 681 // EDX: Array length as Smi. |
| 682 { | 682 { |
| 683 Label size_tag_overflow, done; | 683 Label size_tag_overflow, done; |
| 684 __ leal(ECX, Address(EDX, TIMES_2, fixed_size)); // EDX is Smi. | 684 __ leal(ECX, Address(EDX, TIMES_2, fixed_size)); // EDX is Smi. |
| 685 ASSERT(kSmiTagShift == 1); | 685 ASSERT(kSmiTagShift == 1); |
| 686 __ andl(ECX, Immediate(-kObjectAlignment)); | 686 __ andl(ECX, Immediate(-kObjectAlignment)); |
| 687 __ cmpl(ECX, Immediate(RawObject::SizeTag::kMaxSizeTag)); | 687 __ cmpl(ECX, Immediate(RawObject::SizeTag::kMaxSizeTag)); |
| 688 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); | 688 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); |
| 689 __ shll(ECX, Immediate(RawObject::kSizeTagBit - kObjectAlignmentLog2)); | 689 __ shll(ECX, Immediate(RawObject::kSizeTagPos - kObjectAlignmentLog2)); |
| 690 __ jmp(&done); | 690 __ jmp(&done); |
| 691 | 691 |
| 692 __ Bind(&size_tag_overflow); | 692 __ Bind(&size_tag_overflow); |
| 693 __ movl(ECX, Immediate(0)); | 693 __ movl(ECX, Immediate(0)); |
| 694 __ Bind(&done); | 694 __ Bind(&done); |
| 695 | 695 |
| 696 // Get the class index and insert it into the tags. | 696 // Get the class index and insert it into the tags. |
| 697 __ orl(ECX, Immediate(RawObject::ClassIdTag::encode(kArrayCid))); | 697 __ orl(ECX, Immediate(RawObject::ClassIdTag::encode(kArrayCid))); |
| 698 __ movl(FieldAddress(EAX, Array::tags_offset()), ECX); | 698 __ movl(FieldAddress(EAX, Array::tags_offset()), ECX); |
| 699 } | 699 } |
| (...skipping 235 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 935 | 935 |
| 936 // Calculate the size tag. | 936 // Calculate the size tag. |
| 937 // EAX: new object. | 937 // EAX: new object. |
| 938 // EDX: number of context variables. | 938 // EDX: number of context variables. |
| 939 { | 939 { |
| 940 Label size_tag_overflow, done; | 940 Label size_tag_overflow, done; |
| 941 __ leal(EBX, Address(EDX, TIMES_4, fixed_size)); | 941 __ leal(EBX, Address(EDX, TIMES_4, fixed_size)); |
| 942 __ andl(EBX, Immediate(-kObjectAlignment)); | 942 __ andl(EBX, Immediate(-kObjectAlignment)); |
| 943 __ cmpl(EBX, Immediate(RawObject::SizeTag::kMaxSizeTag)); | 943 __ cmpl(EBX, Immediate(RawObject::SizeTag::kMaxSizeTag)); |
| 944 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); | 944 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); |
| 945 __ shll(EBX, Immediate(RawObject::kSizeTagBit - kObjectAlignmentLog2)); | 945 __ shll(EBX, Immediate(RawObject::kSizeTagPos - kObjectAlignmentLog2)); |
| 946 __ jmp(&done); | 946 __ jmp(&done); |
| 947 | 947 |
| 948 __ Bind(&size_tag_overflow); | 948 __ Bind(&size_tag_overflow); |
| 949 // Set overflow size tag value. | 949 // Set overflow size tag value. |
| 950 __ movl(EBX, Immediate(0)); | 950 __ movl(EBX, Immediate(0)); |
| 951 | 951 |
| 952 __ Bind(&done); | 952 __ Bind(&done); |
| 953 // EAX: new object. | 953 // EAX: new object. |
| 954 // EDX: number of context variables. | 954 // EDX: number of context variables. |
| 955 // EBX: size and bit tags. | 955 // EBX: size and bit tags. |
| (...skipping 964 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 1920 const Register temp = ECX; | 1920 const Register temp = ECX; |
| 1921 __ movl(left, Address(ESP, 2 * kWordSize)); | 1921 __ movl(left, Address(ESP, 2 * kWordSize)); |
| 1922 __ movl(right, Address(ESP, 1 * kWordSize)); | 1922 __ movl(right, Address(ESP, 1 * kWordSize)); |
| 1923 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); | 1923 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); |
| 1924 __ ret(); | 1924 __ ret(); |
| 1925 } | 1925 } |
| 1926 | 1926 |
| 1927 } // namespace dart | 1927 } // namespace dart |
| 1928 | 1928 |
| 1929 #endif // defined TARGET_ARCH_IA32 | 1929 #endif // defined TARGET_ARCH_IA32 |
| OLD | NEW |