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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" // Needed here to get TARGET_ARCH_MIPS. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_MIPS. |
6 #if defined(TARGET_ARCH_MIPS) | 6 #if defined(TARGET_ARCH_MIPS) |
7 | 7 |
8 #include "vm/flow_graph_compiler.h" | 8 #include "vm/flow_graph_compiler.h" |
9 | 9 |
10 #include "vm/ast_printer.h" | 10 #include "vm/ast_printer.h" |
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737 __ addiu(SP, SP, Immediate(7 * kWordSize)); | 737 __ addiu(SP, SP, Immediate(7 * kWordSize)); |
738 | 738 |
739 __ Bind(&is_assignable); | 739 __ Bind(&is_assignable); |
740 // Restore instantiator and its type arguments. | 740 // Restore instantiator and its type arguments. |
741 __ lw(A1, Address(SP, 0 * kWordSize)); | 741 __ lw(A1, Address(SP, 0 * kWordSize)); |
742 __ lw(A2, Address(SP, 1 * kWordSize)); | 742 __ lw(A2, Address(SP, 1 * kWordSize)); |
743 __ addiu(SP, SP, Immediate(2 * kWordSize)); | 743 __ addiu(SP, SP, Immediate(2 * kWordSize)); |
744 } | 744 } |
745 | 745 |
746 | 746 |
747 void FlowGraphCompiler::EmitInstructionPrologue(Instruction* instr) { | |
748 if (!is_optimizing()) { | |
749 if (FLAG_enable_type_checks && instr->IsAssertAssignable()) { | |
750 AssertAssignableInstr* assert = instr->AsAssertAssignable(); | |
751 AddCurrentDescriptor(PcDescriptors::kDeopt, | |
752 assert->deopt_id(), | |
753 assert->token_pos()); | |
754 } else if (instr->IsGuardField() || | |
755 instr->CanBecomeDeoptimizationTarget()) { | |
756 AddCurrentDescriptor(PcDescriptors::kDeopt, | |
757 instr->deopt_id(), | |
758 Scanner::kDummyTokenIndex); | |
759 } | |
760 AllocateRegistersLocally(instr); | |
761 } else if (instr->MayThrow() && | |
762 (CurrentTryIndex() != CatchClauseNode::kInvalidTryIndex)) { | |
763 // Optimized try-block: Sync locals to fixed stack locations. | |
764 EmitTrySync(instr, CurrentTryIndex()); | |
765 } | |
766 } | |
767 | |
768 | |
769 void FlowGraphCompiler::EmitTrySyncMove(intptr_t dest_offset, | 747 void FlowGraphCompiler::EmitTrySyncMove(intptr_t dest_offset, |
770 Location loc, | 748 Location loc, |
771 bool* push_emitted) { | 749 bool* push_emitted) { |
772 if (loc.IsConstant()) { | 750 if (loc.IsConstant()) { |
773 if (!*push_emitted) { | 751 if (!*push_emitted) { |
774 __ Push(T0); | 752 __ Push(T0); |
775 *push_emitted = true; | 753 *push_emitted = true; |
776 } | 754 } |
777 __ LoadObject(T0, loc.constant()); | 755 __ LoadObject(T0, loc.constant()); |
778 __ StoreToOffset(T0, FP, dest_offset); | 756 __ StoreToOffset(T0, FP, dest_offset); |
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1312 // Add deoptimization continuation point after the call and before the | 1290 // Add deoptimization continuation point after the call and before the |
1313 // arguments are removed. | 1291 // arguments are removed. |
1314 AddCurrentDescriptor(PcDescriptors::kDeopt, | 1292 AddCurrentDescriptor(PcDescriptors::kDeopt, |
1315 deopt_id_after, | 1293 deopt_id_after, |
1316 token_pos); | 1294 token_pos); |
1317 } | 1295 } |
1318 } | 1296 } |
1319 } | 1297 } |
1320 | 1298 |
1321 | 1299 |
| 1300 void FlowGraphCompiler::EmitEdgeCounter() { |
| 1301 // We do not check for overflow when incrementing the edge counter. The |
| 1302 // function should normally be optimized long before the counter can |
| 1303 // overflow; and though we do not reset the counters when we optimize or |
| 1304 // deoptimize, there is a bound on the number of |
| 1305 // optimization/deoptimization cycles we will attempt. |
| 1306 const Array& counter = Array::ZoneHandle(Array::New(1, Heap::kOld)); |
| 1307 counter.SetAt(0, Smi::Handle(Smi::New(0))); |
| 1308 __ Comment("Edge counter"); |
| 1309 __ LoadObject(T0, counter); |
| 1310 __ lw(T1, FieldAddress(T0, Array::element_offset(0))); |
| 1311 __ AddImmediate(T1, T1, Smi::RawValue(1)); |
| 1312 __ sw(T1, FieldAddress(T0, Array::element_offset(0))); |
| 1313 } |
| 1314 |
| 1315 |
1322 void FlowGraphCompiler::EmitOptimizedInstanceCall( | 1316 void FlowGraphCompiler::EmitOptimizedInstanceCall( |
1323 ExternalLabel* target_label, | 1317 ExternalLabel* target_label, |
1324 const ICData& ic_data, | 1318 const ICData& ic_data, |
1325 intptr_t argument_count, | 1319 intptr_t argument_count, |
1326 intptr_t deopt_id, | 1320 intptr_t deopt_id, |
1327 intptr_t token_pos, | 1321 intptr_t token_pos, |
1328 LocationSummary* locs) { | 1322 LocationSummary* locs) { |
1329 // Each ICData propagated from unoptimized to optimized code contains the | 1323 // Each ICData propagated from unoptimized to optimized code contains the |
1330 // function that corresponds to the Dart function of that IC call. Due | 1324 // function that corresponds to the Dart function of that IC call. Due |
1331 // to inlining in optimized code, that function may not correspond to the | 1325 // to inlining in optimized code, that function may not correspond to the |
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2012 __ AddImmediate(SP, kDoubleSize); | 2006 __ AddImmediate(SP, kDoubleSize); |
2013 } | 2007 } |
2014 | 2008 |
2015 | 2009 |
2016 #undef __ | 2010 #undef __ |
2017 | 2011 |
2018 | 2012 |
2019 } // namespace dart | 2013 } // namespace dart |
2020 | 2014 |
2021 #endif // defined TARGET_ARCH_MIPS | 2015 #endif // defined TARGET_ARCH_MIPS |
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