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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 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_MIPS) | 6 #if defined(TARGET_ARCH_MIPS) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/code_generator.h" | 9 #include "vm/code_generator.h" |
10 #include "vm/compiler.h" | 10 #include "vm/compiler.h" |
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699 | 699 |
700 // T2: Allocation size. | 700 // T2: Allocation size. |
701 | 701 |
702 Isolate* isolate = Isolate::Current(); | 702 Isolate* isolate = Isolate::Current(); |
703 Heap* heap = isolate->heap(); | 703 Heap* heap = isolate->heap(); |
704 const intptr_t cid = kArrayCid; | 704 const intptr_t cid = kArrayCid; |
705 Heap::Space space = heap->SpaceForAllocation(cid); | 705 Heap::Space space = heap->SpaceForAllocation(cid); |
706 __ LoadImmediate(T3, heap->TopAddress(space)); | 706 __ LoadImmediate(T3, heap->TopAddress(space)); |
707 __ lw(T0, Address(T3, 0)); // Potential new object start. | 707 __ lw(T0, Address(T3, 0)); // Potential new object start. |
708 | 708 |
709 __ AdduDetectOverflow(T1, T0, T2, CMPRES1); // Potential next object start. | 709 __ addu(T1, T0, T2); // Potential next object start. |
710 __ bltz(CMPRES1, &slow_case); // CMPRES1 < 0 on overflow. | 710 __ BranchUnsignedLess(T1, T0, &slow_case); // Branch on unsigned overflow. |
711 | 711 |
712 // Check if the allocation fits into the remaining space. | 712 // Check if the allocation fits into the remaining space. |
713 // T0: potential new object start. | 713 // T0: potential new object start. |
714 // T1: potential next object start. | 714 // T1: potential next object start. |
715 // T2: allocation size. | 715 // T2: allocation size. |
716 __ LoadImmediate(T4, heap->EndAddress(space)); | 716 __ LoadImmediate(T4, heap->EndAddress(space)); |
717 __ lw(T4, Address(T4, 0)); | 717 __ lw(T4, Address(T4, 0)); |
718 __ BranchUnsignedGreaterEqual(T1, T4, &slow_case); | 718 __ BranchUnsignedGreaterEqual(T1, T4, &slow_case); |
719 | 719 |
720 // Successfully allocated the object(s), now update top to point to | 720 // Successfully allocated the object(s), now update top to point to |
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2251 const Register right = T0; | 2251 const Register right = T0; |
2252 __ lw(left, Address(SP, 1 * kWordSize)); | 2252 __ lw(left, Address(SP, 1 * kWordSize)); |
2253 __ lw(right, Address(SP, 0 * kWordSize)); | 2253 __ lw(right, Address(SP, 0 * kWordSize)); |
2254 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp1, temp2); | 2254 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp1, temp2); |
2255 __ Ret(); | 2255 __ Ret(); |
2256 } | 2256 } |
2257 | 2257 |
2258 } // namespace dart | 2258 } // namespace dart |
2259 | 2259 |
2260 #endif // defined TARGET_ARCH_MIPS | 2260 #endif // defined TARGET_ARCH_MIPS |
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