Alexander Markov
dd6dc29c21
This change mechanically copies runtime/tests/vm/dart -> runtime/tests/vm/dart_2 in preparation for the migration of runtime/tests/vm/dart to NNBD. Corresponding statuses in vm.status are duplicated. Added vm_nnbd builder tag for NNBD bots. vm/dart/* tests are allowed to run only on vm_nnbd builders. vm/dart_2/* tests are allowed to run only on non-vm_nnbd builders. Issue: https://github.com/dart-lang/sdk/issues/41314 Change-Id: I079da92da17960605f37c1c0e28e48362b236739 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149485 Reviewed-by: Régis Crelier <regis@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
33 lines
1023 B
Dart
33 lines
1023 B
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
// Regression test for dartbug.com/30853: check that we assign correct range
|
|
// to Uint32 operations when creating them from Int64 operations.
|
|
|
|
// VMOptions=--optimization_counter_threshold=50 --no-background-compilation
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
@pragma('vm:never-inline')
|
|
noop(x) => x;
|
|
|
|
const int BITS32 = 0xFFFFFFFF;
|
|
|
|
@pragma('vm:prefer-inline')
|
|
int toUint32(int x) => noop(x & BITS32);
|
|
|
|
@pragma('vm:never-inline')
|
|
bitNotAsUint32(x) {
|
|
// After inlining we will have here BoxUint32(UnboxUint32(UnarySmiOp(~, x)))
|
|
// UnboxUint32 must have correct range assigned, otherwise we will not
|
|
// emit boxing slowpath and Uint32 4294967294 will become Int32 -2 instead.
|
|
return toUint32(~x);
|
|
}
|
|
|
|
main() {
|
|
for (var i = 0; i < 100; i++) {
|
|
Expect.equals(0xfffffffe, bitNotAsUint32(1));
|
|
}
|
|
}
|