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24b8399086
Small --optimization-counter-threshold makes tests very slow, especially on architectures where kernel service runs from kernel and not from app-jit snapshot. TEST=change in tests, *-ia32 bots Fixes https://github.com/dart-lang/sdk/issues/48627 Change-Id: I63e7e201ef9a0e4f645016c39a5be1819b61822d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/263421 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>
47 lines
1.5 KiB
Dart
47 lines
1.5 KiB
Dart
// Copyright (c) 2018, 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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// Testing Bigints with and without intrinsics.
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// VMOptions=--intrinsify --no-enable-asserts
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// VMOptions=--intrinsify --enable-asserts
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// VMOptions=--no-intrinsify --enable-asserts
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// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
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// Test for JavaScript specific BigInt behaviour. Any JavaScript number (double)
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// that is an integral value is a Dart 'int' value, so any BigInt that has a
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// value that is exactly a double integral value should return `true` for
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// [BigInt.isValidInt].
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import "package:expect/expect.dart";
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int intPow(int a, int p) {
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int result = 1;
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for (int i = 0; i < p; i++) result *= a;
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return result;
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}
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int pow2_53 = intPow(2, 53);
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test(int n1, int n2, int shift, [bool expectedIsValidInt = true]) {
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var n = (new BigInt.from(n1) * new BigInt.from(n2)) << shift;
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Expect.equals(expectedIsValidInt, n.isValidInt, '${n}.isValidInt');
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if (n >= new BigInt.from(pow2_53)) {
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var nplus1 = n + BigInt.one;
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Expect.isFalse(nplus1.isValidInt, '${nplus1}.isValidInt');
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}
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}
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main() {
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test(13, 19, 1);
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test(19997, 19993, 100);
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test(19997, pow2_53 ~/ 19997, 0);
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test(19997, pow2_53 ~/ 19997, 1);
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test(19997, pow2_53 ~/ 19997, 100);
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test(1, 1, 100);
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test(1, 1, 10000, false);
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// More than 53 bits in product,
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test(pow2_53 ~/ 3, pow2_53 ~/ 5, 0, false);
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}
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