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Issue 693183006: Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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.
4
5 library dart2js.stress;
6 import "dart2js.dart" as dart2js;
7
8 const ITERATIONS_FLAG_PREFIX = "--iterations=";
9 void main(List<String> args) {
10 print("Reminder: for best performance, "
11 "dart2js should be run with the VM flag --heap_growth_rate=512");
12 Stopwatch sw = new Stopwatch();
13 int count = 0;
14 int maxCount = null;
15 if (args.isNotEmpty && args[0].startsWith(ITERATIONS_FLAG_PREFIX)) {
16 maxCount = int.parse(args[0].substring(ITERATIONS_FLAG_PREFIX.length));
17 args = args.sublist(1);
18 }
19 if (maxCount == null) {
20 print("Running indefinitely.\n"
21 "Use '$ITERATIONS_FLAG_PREFIX<count>' to set a repetition count"
22 " (as first flag).");
23 }
24 args = ["--suppress-warnings", "--suppress-hints"]..addAll(args);
25 void iterate() {
26 count++;
27 sw.reset();
28 sw.start();
29 dart2js.internalMain(args)
30 .then((_) {
31 print("$count: ${sw.elapsedMilliseconds}ms");
32 })
33 .then((_) {
34 if (maxCount == null || count < maxCount) {
35 iterate();
36 }
37 });
38 }
39 iterate();
40 }
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