Lasse R.H. Nielsen
0a88f4ef73
Removed from `benchmarks/`, `runtime/`, `sdk/`, `tools/` and `utils/`. (Leaving `tests/`, `pkg/` and `third_party/`.) CoreLibraryReviewExempt: No real change. Tested: No test changes for no real code changes. Change-Id: Ieb42441457ca3d0ea4443dd153ee902ea33b28de Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/480241 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com> Reviewed-by: Nate Bosch <nbosch@google.com>
97 lines
2.9 KiB
Dart
97 lines
2.9 KiB
Dart
// Copyright (c) 2012, 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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// VMOptions=--optimization_counter_threshold=10 --no-background-compilation
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// This test tries to verify that we produce the correct stack trace when
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// throwing exceptions even when functions are inlined.
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// The test invokes a bunch of functions and then does a throw. There is a
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// catch at the outer function which uses the stack trace produced to return
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// a string. The test then verifies that the stack trace contains each
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// method in the invocation chain. The test is run during warmup to ensure
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// unoptimized code produces the correct result and is then run
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// in a loop to ensure optimization kicks in and some inlining is done.
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// Note: it appears that functions which have a throw are not inlined (func4)
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// and functions that have try/catch in them are not optimized (func1).
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// func2 is not inlined as func1 has not been optimized.
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class Test {
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@pragma("vm:entry-point")
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String func1(k) {
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try {
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for (var i = 0; i <= 50; i++) {
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func2(i * k);
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}
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return "";
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} catch (e, stacktrace) {
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var result = e.toString() + "\n" + stacktrace.toString();
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return result;
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}
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}
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@pragma("vm:entry-point")
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int func2(i) {
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var result = 0;
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for (var k = 0; k <= 10; k++) {
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result += func3(i + k);
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}
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return result;
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}
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@pragma("vm:entry-point")
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int func3(i) {
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var result = 0;
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for (var l = 0; l <= 1; l++) {
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result += func4(i + l);
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}
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return result;
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}
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@pragma("vm:entry-point")
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int func4(i) {
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var result = 0;
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for (var j = 0; j <= 10; j++) {
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result += func5(i + j);
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}
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return result;
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}
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@pragma("vm:entry-point")
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int func5(i) {
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if (i >= 520) throw "show me inlined functions";
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return i;
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}
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}
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expectHasSubstring(String string, String substring) {
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if (!string.contains(substring)) {
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var sb = new StringBuffer();
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sb.writeln("Expect string:");
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sb.writeln(string);
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sb.writeln("To have substring:");
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sb.writeln(substring);
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throw new Exception(sb.toString());
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}
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}
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main() {
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var x = new Test();
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var result = x.func1(100000);
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expectHasSubstring(result, "show me inlined functions");
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expectHasSubstring(result, "Test.func1");
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expectHasSubstring(result, "Test.func2");
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expectHasSubstring(result, "Test.func3");
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expectHasSubstring(result, "Test.func4");
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expectHasSubstring(result, "Test.func5");
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for (var i = 0; i <= 10; i++) {
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result = x.func1(i);
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}
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expectHasSubstring(result, "show me inlined functions");
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expectHasSubstring(result, "Test.func1");
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expectHasSubstring(result, "Test.func2");
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expectHasSubstring(result, "Test.func3");
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expectHasSubstring(result, "Test.func4");
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expectHasSubstring(result, "Test.func5");
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}
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