Joshua Litt
76ac2ee172
Change-Id: I1ecf0d2628685738b0631040d6fe61d635164fb6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/212340 Reviewed-by: Stephen Adams <sra@google.com> Commit-Queue: Joshua Litt <joshualitt@google.com>
118 lines
2.5 KiB
Dart
118 lines
2.5 KiB
Dart
// Copyright (c) 2020, 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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//@dart=2.14
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/*member: main:ignore*/
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void main() {
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for (var a in [false, true]) {
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sink = cannotRecognize(a ? 10 : C());
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sink = unspecialized(a ? -1 : 1);
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sink = otherPositive2(a);
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sink = shiftBySix(a);
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sink = shiftByMasked(a, 9);
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sink = shiftByMasked(a, -9);
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}
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sink = cannotConstantFold();
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sink = constantFoldPositive();
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sink = constantFoldNegative();
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test6();
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}
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Object? sink;
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@pragma('dart2js:noInline')
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/*spec|canary.member: cannotRecognize:function(thing) {
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return A._asInt(J.$shru$n(thing, 1));
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}*/
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/*prod.member: cannotRecognize:function(thing) {
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return J.$shru$n(thing, 1);
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}*/
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int cannotRecognize(dynamic thing) {
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return thing >>> 1;
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}
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@pragma('dart2js:noInline')
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/*member: cannotConstantFold:function() {
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return B.JSInt_methods.$shru(1, -1);
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}*/
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int cannotConstantFold() {
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var a = 1;
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return a >>> -1;
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}
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@pragma('dart2js:noInline')
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/*member: constantFoldPositive:function() {
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return 25;
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}*/
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int constantFoldPositive() {
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var a = 100;
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return a >>> 2;
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}
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@pragma('dart2js:noInline')
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/*member: constantFoldNegative:function() {
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return 3;
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}*/
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int constantFoldNegative() {
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var a = -1;
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return a >>> 30;
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}
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@pragma('dart2js:noInline')
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/*member: unspecialized:function(a) {
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return B.JSInt_methods.$shru(1, a);
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}*/
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int unspecialized(int a) {
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return 1 >>> a;
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}
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@pragma('dart2js:noInline')
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/*member: otherPositive2:function(param) {
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return B.JSInt_methods._shruOtherPositive$1(1, param ? 1 : 2);
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}*/
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int otherPositive2(bool param) {
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var a = param ? 1 : 2;
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return 1 >>> a;
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}
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@pragma('dart2js:noInline')
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/*member: shiftBySix:function(param) {
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return (param ? 4294967295 : -1) >>> 6;
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}*/
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int shiftBySix(bool param) {
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var a = param ? 0xFFFFFFFF : -1;
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return a >>> 6;
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}
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@pragma('dart2js:noInline')
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/*member: shiftByMasked:function(param1, shift) {
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var a = param1 ? 4294967295 : 0;
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return a >>> (shift & 31);
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}*/
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int shiftByMasked(bool param1, int shift) {
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var a = param1 ? 0xFFFFFFFF : 0;
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return a >>> (shift & 31);
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}
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@pragma('dart2js:noInline')
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/*member: otherPositive6:function(a, b) {
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return B.JSInt_methods._shruOtherPositive$1(a, b);
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}*/
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int otherPositive6(int a, int b) {
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return a >>> b;
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}
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void test6() {
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sink = otherPositive6(1, 3);
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sink = otherPositive6(0, 4);
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sink = otherPositive6(-1, 2);
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}
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class C {
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/*member: C.>>>:ignore*/
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C operator >>>(int i) => this;
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}
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