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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/compiler.h" | 9 #include "vm/compiler.h" |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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704 __ bltz(T3, &slow_case); | 704 __ bltz(T3, &slow_case); |
705 | 705 |
706 // Check for maximum allowed length. | 706 // Check for maximum allowed length. |
707 const intptr_t max_len = | 707 const intptr_t max_len = |
708 reinterpret_cast<int32_t>(Smi::New(Array::kMaxElements)); | 708 reinterpret_cast<int32_t>(Smi::New(Array::kMaxElements)); |
709 __ BranchUnsignedGreater(T3, Immediate(max_len), &slow_case); | 709 __ BranchUnsignedGreater(T3, Immediate(max_len), &slow_case); |
710 | 710 |
711 const intptr_t cid = kArrayCid; | 711 const intptr_t cid = kArrayCid; |
712 NOT_IN_PRODUCT(__ MaybeTraceAllocation(kArrayCid, T4, &slow_case)); | 712 NOT_IN_PRODUCT(__ MaybeTraceAllocation(kArrayCid, T4, &slow_case)); |
713 | 713 |
714 const intptr_t fixed_size = sizeof(RawArray) + kObjectAlignment - 1; | 714 const intptr_t fixed_size_plus_alignment_padding = |
715 __ LoadImmediate(T2, fixed_size); | 715 sizeof(RawArray) + kObjectAlignment - 1; |
| 716 __ LoadImmediate(T2, fixed_size_plus_alignment_padding); |
716 __ sll(T3, T3, 1); // T3 is a Smi. | 717 __ sll(T3, T3, 1); // T3 is a Smi. |
717 __ addu(T2, T2, T3); | 718 __ addu(T2, T2, T3); |
718 ASSERT(kSmiTagShift == 1); | 719 ASSERT(kSmiTagShift == 1); |
719 __ LoadImmediate(T3, ~(kObjectAlignment - 1)); | 720 __ LoadImmediate(T3, ~(kObjectAlignment - 1)); |
720 __ and_(T2, T2, T3); | 721 __ and_(T2, T2, T3); |
721 | 722 |
722 // T2: Allocation size. | 723 // T2: Allocation size. |
723 | 724 |
724 Heap::Space space = Heap::kNew; | 725 Heap::Space space = Heap::kNew; |
725 __ lw(T3, Address(THR, Thread::heap_offset())); | 726 __ lw(T3, Address(THR, Thread::heap_offset())); |
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966 // Input: | 967 // Input: |
967 // T1: number of context variables. | 968 // T1: number of context variables. |
968 // Output: | 969 // Output: |
969 // V0: new allocated RawContext object. | 970 // V0: new allocated RawContext object. |
970 void StubCode::GenerateAllocateContextStub(Assembler* assembler) { | 971 void StubCode::GenerateAllocateContextStub(Assembler* assembler) { |
971 __ Comment("AllocateContext"); | 972 __ Comment("AllocateContext"); |
972 if (FLAG_inline_alloc) { | 973 if (FLAG_inline_alloc) { |
973 Label slow_case; | 974 Label slow_case; |
974 // First compute the rounded instance size. | 975 // First compute the rounded instance size. |
975 // T1: number of context variables. | 976 // T1: number of context variables. |
976 intptr_t fixed_size = sizeof(RawContext) + kObjectAlignment - 1; | 977 intptr_t fixed_size_plus_alignment_padding = |
977 __ LoadImmediate(T2, fixed_size); | 978 sizeof(RawContext) + kObjectAlignment - 1; |
| 979 __ LoadImmediate(T2, fixed_size_plus_alignment_padding); |
978 __ sll(T0, T1, 2); | 980 __ sll(T0, T1, 2); |
979 __ addu(T2, T2, T0); | 981 __ addu(T2, T2, T0); |
980 ASSERT(kSmiTagShift == 1); | 982 ASSERT(kSmiTagShift == 1); |
981 __ LoadImmediate(T0, ~((kObjectAlignment)-1)); | 983 __ LoadImmediate(T0, ~((kObjectAlignment)-1)); |
982 __ and_(T2, T2, T0); | 984 __ and_(T2, T2, T0); |
983 | 985 |
984 NOT_IN_PRODUCT(__ MaybeTraceAllocation(kContextCid, T4, &slow_case)); | 986 NOT_IN_PRODUCT(__ MaybeTraceAllocation(kContextCid, T4, &slow_case)); |
985 // Now allocate the object. | 987 // Now allocate the object. |
986 // T1: number of context variables. | 988 // T1: number of context variables. |
987 // T2: object size. | 989 // T2: object size. |
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2432 } | 2434 } |
2433 | 2435 |
2434 | 2436 |
2435 void StubCode::GenerateAsynchronousGapMarkerStub(Assembler* assembler) { | 2437 void StubCode::GenerateAsynchronousGapMarkerStub(Assembler* assembler) { |
2436 __ break_(0); | 2438 __ break_(0); |
2437 } | 2439 } |
2438 | 2440 |
2439 } // namespace dart | 2441 } // namespace dart |
2440 | 2442 |
2441 #endif // defined TARGET_ARCH_MIPS | 2443 #endif // defined TARGET_ARCH_MIPS |
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