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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_ARM. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. |
| 6 #if defined(TARGET_ARCH_ARM) | 6 #if defined(TARGET_ARCH_ARM) |
| 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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| 22 #include "vm/symbols.h" | 22 #include "vm/symbols.h" |
| 23 #include "vm/verified_memory.h" | 23 #include "vm/verified_memory.h" |
| 24 | 24 |
| 25 namespace dart { | 25 namespace dart { |
| 26 | 26 |
| 27 DEFINE_FLAG(bool, trap_on_deoptimization, false, "Trap on deoptimization."); | 27 DEFINE_FLAG(bool, trap_on_deoptimization, false, "Trap on deoptimization."); |
| 28 DEFINE_FLAG(bool, unbox_mints, true, "Optimize 64-bit integer arithmetic."); | 28 DEFINE_FLAG(bool, unbox_mints, true, "Optimize 64-bit integer arithmetic."); |
| 29 DEFINE_FLAG(bool, unbox_doubles, true, "Optimize double arithmetic."); | 29 DEFINE_FLAG(bool, unbox_doubles, true, "Optimize double arithmetic."); |
| 30 DECLARE_FLAG(bool, enable_simd_inline); | 30 DECLARE_FLAG(bool, enable_simd_inline); |
| 31 DECLARE_FLAG(bool, use_megamorphic_stub); | 31 DECLARE_FLAG(bool, use_megamorphic_stub); |
| 32 DECLARE_FLAG(bool, precompilation); | |
| 33 | 32 |
| 34 | 33 |
| 35 void MegamorphicSlowPath::EmitNativeCode(FlowGraphCompiler* compiler) { | 34 void MegamorphicSlowPath::EmitNativeCode(FlowGraphCompiler* compiler) { |
| 36 Assembler* assembler = compiler->assembler(); | 35 Assembler* assembler = compiler->assembler(); |
| 37 #define __ assembler-> | 36 #define __ assembler-> |
| 38 __ Bind(entry_label()); | 37 __ Bind(entry_label()); |
| 39 __ Comment("MegamorphicSlowPath"); | 38 __ Comment("MegamorphicSlowPath"); |
| 40 compiler->EmitMegamorphicInstanceCall(ic_data_, argument_count_, deopt_id_, | 39 compiler->EmitMegamorphicInstanceCall(ic_data_, argument_count_, deopt_id_, |
| 41 token_pos_, locs_, try_index_); | 40 token_pos_, locs_, try_index_); |
| 42 __ b(exit_label()); | 41 __ b(exit_label()); |
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| 1127 } | 1126 } |
| 1128 } | 1127 } |
| 1129 } | 1128 } |
| 1130 | 1129 |
| 1131 VisitBlocks(); | 1130 VisitBlocks(); |
| 1132 | 1131 |
| 1133 __ bkpt(0); | 1132 __ bkpt(0); |
| 1134 ASSERT(assembler()->constant_pool_allowed()); | 1133 ASSERT(assembler()->constant_pool_allowed()); |
| 1135 GenerateDeferredCode(); | 1134 GenerateDeferredCode(); |
| 1136 | 1135 |
| 1137 if (is_optimizing() && !FLAG_precompilation) { | 1136 if (is_optimizing() && !FLAG_precompiled_mode) { |
| 1138 // Leave enough space for patching in case of lazy deoptimization from | 1137 // Leave enough space for patching in case of lazy deoptimization from |
| 1139 // deferred code. | 1138 // deferred code. |
| 1140 for (intptr_t i = 0; | 1139 for (intptr_t i = 0; |
| 1141 i < CallPattern::DeoptCallPatternLengthInInstructions(); | 1140 i < CallPattern::DeoptCallPatternLengthInInstructions(); |
| 1142 ++i) { | 1141 ++i) { |
| 1143 __ nop(); | 1142 __ nop(); |
| 1144 } | 1143 } |
| 1145 lazy_deopt_pc_offset_ = assembler()->CodeSize(); | 1144 lazy_deopt_pc_offset_ = assembler()->CodeSize(); |
| 1146 __ Branch(*StubCode::DeoptimizeLazy_entry()); | 1145 __ Branch(*StubCode::DeoptimizeLazy_entry()); |
| 1147 } | 1146 } |
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| 1320 __ LoadObject(R9, cache); | 1319 __ LoadObject(R9, cache); |
| 1321 if (FLAG_use_megamorphic_stub) { | 1320 if (FLAG_use_megamorphic_stub) { |
| 1322 __ BranchLink(*StubCode::MegamorphicLookup_entry()); | 1321 __ BranchLink(*StubCode::MegamorphicLookup_entry()); |
| 1323 } else { | 1322 } else { |
| 1324 StubCode::EmitMegamorphicLookup(assembler()); | 1323 StubCode::EmitMegamorphicLookup(assembler()); |
| 1325 } | 1324 } |
| 1326 __ blx(R1); | 1325 __ blx(R1); |
| 1327 | 1326 |
| 1328 RecordSafepoint(locs); | 1327 RecordSafepoint(locs); |
| 1329 const intptr_t deopt_id_after = Thread::ToDeoptAfter(deopt_id); | 1328 const intptr_t deopt_id_after = Thread::ToDeoptAfter(deopt_id); |
| 1330 if (FLAG_precompilation) { | 1329 if (FLAG_precompiled_mode) { |
| 1331 // Megamorphic calls may occur in slow path stubs. | 1330 // Megamorphic calls may occur in slow path stubs. |
| 1332 // If valid use try_index argument. | 1331 // If valid use try_index argument. |
| 1333 if (try_index == CatchClauseNode::kInvalidTryIndex) { | 1332 if (try_index == CatchClauseNode::kInvalidTryIndex) { |
| 1334 try_index = CurrentTryIndex(); | 1333 try_index = CurrentTryIndex(); |
| 1335 } | 1334 } |
| 1336 pc_descriptors_list()->AddDescriptor(RawPcDescriptors::kOther, | 1335 pc_descriptors_list()->AddDescriptor(RawPcDescriptors::kOther, |
| 1337 assembler()->CodeSize(), | 1336 assembler()->CodeSize(), |
| 1338 Thread::kNoDeoptId, | 1337 Thread::kNoDeoptId, |
| 1339 token_pos, | 1338 token_pos, |
| 1340 try_index); | 1339 try_index); |
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| 1974 DRegister dreg = EvenDRegisterOf(reg); | 1973 DRegister dreg = EvenDRegisterOf(reg); |
| 1975 __ vldrd(dreg, Address(SP, kDoubleSize, Address::PostIndex)); | 1974 __ vldrd(dreg, Address(SP, kDoubleSize, Address::PostIndex)); |
| 1976 } | 1975 } |
| 1977 | 1976 |
| 1978 | 1977 |
| 1979 #undef __ | 1978 #undef __ |
| 1980 | 1979 |
| 1981 } // namespace dart | 1980 } // namespace dart |
| 1982 | 1981 |
| 1983 #endif // defined TARGET_ARCH_ARM | 1982 #endif // defined TARGET_ARCH_ARM |
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