Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
81 lines
1.7 KiB
Dart
81 lines
1.7 KiB
Dart
// Copyright (c) 2019, 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.
|
|
|
|
// @dart = 2.7
|
|
|
|
/*member: mod1:Specializer=[Modulo]*/
|
|
@pragma('dart2js:noInline')
|
|
mod1(param) {
|
|
var a = param ? 0xFFFFFFFF : 1;
|
|
return a % 2;
|
|
// present: ' % 2'
|
|
// absent: '$mod'
|
|
}
|
|
|
|
/*member: mod2:Specializer=[!Modulo]*/
|
|
@pragma('dart2js:noInline')
|
|
mod2(param) {
|
|
var a = param ? 0xFFFFFFFF : -0.0;
|
|
return a % 2;
|
|
// Cannot optimize due to potential -0.
|
|
// present: '$mod'
|
|
// absent: ' % 2'
|
|
}
|
|
|
|
/*member: mod3:Specializer=[Modulo]*/
|
|
@pragma('dart2js:noInline')
|
|
mod3(param) {
|
|
var a = param ? 0xFFFFFFFF : -0.0;
|
|
return (a + 1) % 2;
|
|
// 'a + 1' cannot be -0.0, so we can optimize.
|
|
// present: ' % 2'
|
|
// absent: '$mod'
|
|
}
|
|
|
|
/*member: rem1:Specializer=[Remainder]*/
|
|
@pragma('dart2js:noInline')
|
|
rem1(param) {
|
|
var a = param ? 0xFFFFFFFF : 1;
|
|
return a.remainder(2);
|
|
// Above can be compiled to '%'.
|
|
// present: ' % 2'
|
|
// absent: 'remainder'
|
|
}
|
|
|
|
/*member: rem2:Specializer=[Remainder]*/
|
|
@pragma('dart2js:noInline')
|
|
rem2(param) {
|
|
var a = param ? 123.4 : -1;
|
|
return a.remainder(3);
|
|
// Above can be compiled to '%'.
|
|
// present: ' % 3'
|
|
// absent: 'remainder'
|
|
}
|
|
|
|
/*member: rem3:Specializer=[!Remainder]*/
|
|
@pragma('dart2js:noInline')
|
|
rem3(param) {
|
|
var a = param ? 123 : null;
|
|
return 100.remainder(a);
|
|
// No specialization for possibly null inputs.
|
|
// present: 'remainder'
|
|
// absent: '%'
|
|
}
|
|
|
|
main() {
|
|
mod1(true);
|
|
mod1(false);
|
|
mod2(true);
|
|
mod2(false);
|
|
mod3(true);
|
|
mod3(false);
|
|
|
|
rem1(true);
|
|
rem1(false);
|
|
rem2(true);
|
|
rem2(false);
|
|
rem3(true);
|
|
rem3(false);
|
|
}
|