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https://github.com/dart-lang/sdk
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6ca7571e2b
AOT: SwitchFSM.enum(RunTime): 29.549523327947906 us. SwitchFSM.int(RunTime): 37.73789702628717 us. SwitchFSM.class(RunTime): 138.6418530572675 us. SwitchFSM.string(RunTime): 797.54075 us. dart2js+V8: SwitchFSM.enum(RunTime): 31.484299349840917 us. SwitchFSM.int(RunTime): 26.022895908416366 us. SwitchFSM.class(RunTime): 91.67433302667894 us. SwitchFSM.string(RunTime): 92.31338451577098 us. Both AOT and dart2js are 'good at' switches on enum values. When compiled with --enable-experiment=records,patterns: AOT: SwitchFSM.enum(RunTime): 141.75470079359405 us. SwitchFSM.int(RunTime): 145.25322604030737 us. SwitchFSM.class(RunTime): 138.45460840662005 us. SwitchFSM.string(RunTime): 797.226 us. dart2js+V8: SwitchFSM.enum(RunTime): 98.93787283573403 us. SwitchFSM.int(RunTime): 29.459852700736498 us. SwitchFSM.class(RunTime): 98.62184338405162 us. SwitchFSM.string(RunTime): 92.035889371936 us. There is work to be done to recover the performance. Change-Id: I1197129cb32615a06a63a05d7ba300b46c68b4d2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/287246 Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Stephen Adams <sra@google.com>
67 lines
1.8 KiB
Dart
67 lines
1.8 KiB
Dart
// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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class State {
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static const int start = 0;
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static const int a1 = 1;
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static const int a2 = 2;
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static const int a3 = 3;
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static const int a4 = 4;
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static const int a5 = 5;
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static const int a6 = 6;
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static const int a7 = 7;
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static const int error = 8;
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static const int extended1 = 9;
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static const int extended2 = 10;
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static const int extended3 = 11;
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static const int extended4 = 12;
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static const int two3 = 13;
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static const int two4 = 14;
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static const int two5 = 15;
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static const int two6 = 16;
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static const int two7 = 17;
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static const int three4 = 18;
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static const int three5 = 19;
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static const int three6 = 20;
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static const int three7 = 21;
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static const int four5 = 22;
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static const int four6 = 23;
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static const int four7 = 24;
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// First additional byte of 3.
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static const int first0 = 25;
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static const int first1 = 26;
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static const int first2 = 27;
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static const int first3 = 28;
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static const int first4 = 29;
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static const int first5 = 30;
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static const int first6 = 31;
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static const int first7 = 32;
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// Second last additional byte.
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static const int prev0 = 33;
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static const int prev1 = 34;
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static const int prev2 = 35;
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static const int prev3 = 36;
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static const int prev4 = 37;
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static const int prev5 = 38;
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static const int prev6 = 39;
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static const int prev7 = 40;
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// Last additional byte.
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static const int last0 = 41;
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static const int last1 = 42;
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static const int last2 = 43;
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static const int last3 = 44;
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static const int last4 = 45;
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static const int last5 = 46;
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static const int last6 = 47;
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static const int last7 = 48;
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}
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