mirror of
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284f662022
Change-Id: I764d0457da85b2935e1d83309eab4c4b5b3ea000 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126204 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
82 lines
3 KiB
Dart
82 lines
3 KiB
Dart
// Copyright (c) 2011, 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 integers with and without intrinsics.
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// VMOptions=
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// VMOptions=--no_intrinsify
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library integer_arithmetic_test;
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import "package:expect/expect.dart";
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mulDivParsed(String a, String b, String product,
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{String? expected_quotient1, String? expected_quotient2}) {
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int int_a = int.parse(a);
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int int_b = int.parse(b);
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int int_product = int.parse(product);
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int computed_product = int_a * int_b;
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Expect.equals(int_product, computed_product);
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String str_product = computed_product >= 0
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? "0x${computed_product.toRadixString(16)}"
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: "-0x${(-computed_product).toRadixString(16)}";
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Expect.equals(product.toLowerCase(), str_product);
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int computed_product2 = int_b * int_a;
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Expect.equals(int_product, computed_product2);
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String str_product2 = computed_product2 >= 0
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? "0x${computed_product2.toRadixString(16)}"
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: "-0x${(-computed_product2).toRadixString(16)}";
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Expect.equals(product.toLowerCase(), str_product2);
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if (int_a != 0) {
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expected_quotient1 ??= b;
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int int_expected_quotient1 = int.parse(expected_quotient1);
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int computed_quotient1 = int_product ~/ int_a;
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Expect.equals(int_expected_quotient1, computed_quotient1);
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String str_quotient1 = computed_quotient1 >= 0
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? "0x${computed_quotient1.toRadixString(16)}"
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: "-0x${(-computed_quotient1).toRadixString(16)}";
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Expect.equals(expected_quotient1.toLowerCase(), str_quotient1);
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}
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if (int_b != 0) {
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expected_quotient2 ??= a;
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int int_expected_quotient2 = int.parse(expected_quotient2);
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int computed_quotient2 = int_product ~/ int_b;
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Expect.equals(int_expected_quotient2, computed_quotient2);
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String str_quotient2 = computed_quotient2 >= 0
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? "0x${computed_quotient2.toRadixString(16)}"
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: "-0x${(-computed_quotient2).toRadixString(16)}";
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Expect.equals(expected_quotient2.toLowerCase(), str_quotient2);
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}
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}
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testMultiplyDivide() {
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String zero = "0x0";
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String one = "0x1";
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String minus_one = "-0x1";
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mulDivParsed(zero, zero, zero);
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mulDivParsed(one, one, one);
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mulDivParsed(one, zero, zero);
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mulDivParsed(zero, one, zero);
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mulDivParsed(one, minus_one, minus_one);
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mulDivParsed(minus_one, minus_one, one);
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mulDivParsed("0x42", one, "0x42");
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mulDivParsed("0x42", "0x2", "0x84");
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mulDivParsed("0xFFFF", "0x2", "0x1FFFE");
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mulDivParsed("0x3", "0x5", "0xF");
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mulDivParsed("0xFFFFF", "0x5", "0x4FFFFB");
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mulDivParsed("0xFFFFFFF", "0x5", "0x4FFFFFFB");
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mulDivParsed("0xFFFFFFFF", "0x5", "0x4FFFFFFFB");
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mulDivParsed("0x7FFFFFFFFFFFFFFF", "0x5", "0x7FFFFFFFFFFFFFFB",
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expected_quotient1: zero, expected_quotient2: "0x1999999999999998");
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mulDivParsed("0x7FFFFFFFFFFFFFFF", "0x3039", "0x7FFFFFFFFFFFCFC7",
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expected_quotient1: zero, expected_quotient2: "0x2A783BE38C73D");
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mulDivParsed("0x10000001", "0x5", "0x50000005");
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}
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main() {
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testMultiplyDivide();
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}
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