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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, 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/precompiler.h" | 5 #include "vm/precompiler.h" |
6 | 6 |
7 #include "vm/aot_optimizer.h" | 7 #include "vm/aot_optimizer.h" |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/ast_printer.h" | 9 #include "vm/ast_printer.h" |
10 #include "vm/branch_optimizer.h" | 10 #include "vm/branch_optimizer.h" |
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2957 // values coming from dead paths. | 2957 // values coming from dead paths. |
2958 flow_graph->SelectRepresentations(); | 2958 flow_graph->SelectRepresentations(); |
2959 DEBUG_ASSERT(flow_graph->VerifyUseLists()); | 2959 DEBUG_ASSERT(flow_graph->VerifyUseLists()); |
2960 } | 2960 } |
2961 | 2961 |
2962 { | 2962 { |
2963 #ifndef PRODUCT | 2963 #ifndef PRODUCT |
2964 TimelineDurationScope tds2(thread(), compiler_timeline, | 2964 TimelineDurationScope tds2(thread(), compiler_timeline, |
2965 "CommonSubexpressionElimination"); | 2965 "CommonSubexpressionElimination"); |
2966 #endif // !PRODUCT | 2966 #endif // !PRODUCT |
2967 if (FLAG_common_subexpression_elimination || | |
2968 FLAG_loop_invariant_code_motion) { | |
2969 flow_graph->ComputeBlockEffects(); | |
2970 } | |
2971 | 2967 |
2972 if (FLAG_common_subexpression_elimination) { | 2968 if (FLAG_common_subexpression_elimination) { |
2973 if (DominatorBasedCSE::Optimize(flow_graph)) { | 2969 if (DominatorBasedCSE::Optimize(flow_graph)) { |
2974 DEBUG_ASSERT(flow_graph->VerifyUseLists()); | 2970 DEBUG_ASSERT(flow_graph->VerifyUseLists()); |
2975 flow_graph->Canonicalize(); | 2971 flow_graph->Canonicalize(); |
2976 // Do another round of CSE to take secondary effects into account: | 2972 // Do another round of CSE to take secondary effects into account: |
2977 // e.g. when eliminating dependent loads (a.x[0] + a.x[0]) | 2973 // e.g. when eliminating dependent loads (a.x[0] + a.x[0]) |
2978 // TODO(fschneider): Change to a one-pass optimization pass. | 2974 // TODO(fschneider): Change to a one-pass optimization pass. |
2979 if (DominatorBasedCSE::Optimize(flow_graph)) { | 2975 if (DominatorBasedCSE::Optimize(flow_graph)) { |
2980 flow_graph->Canonicalize(); | 2976 flow_graph->Canonicalize(); |
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3326 | 3322 |
3327 ASSERT(FLAG_precompiled_mode); | 3323 ASSERT(FLAG_precompiled_mode); |
3328 const bool optimized = function.IsOptimizable(); // False for natives. | 3324 const bool optimized = function.IsOptimizable(); // False for natives. |
3329 DartPrecompilationPipeline pipeline(zone, field_type_map); | 3325 DartPrecompilationPipeline pipeline(zone, field_type_map); |
3330 return PrecompileFunctionHelper(precompiler, &pipeline, function, optimized); | 3326 return PrecompileFunctionHelper(precompiler, &pipeline, function, optimized); |
3331 } | 3327 } |
3332 | 3328 |
3333 #endif // DART_PRECOMPILER | 3329 #endif // DART_PRECOMPILER |
3334 | 3330 |
3335 } // namespace dart | 3331 } // namespace dart |
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