// Copyright (c) 2020, 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: main:ignore*/ void main() { for (var a in [false, true]) { sink = foo1(a); sink = foo2(a); sink = foo3(a); sink = foo4(a, 2); sink = foo4(a, 10); for (var b in [false, true]) { sink = foo5(a, b); sink = foo_regress_37502(a, b); } } } Object sink; @pragma('dart2js:noInline') /*spec.member: foo1:function(param) { return (H.boolConversionCheck(param) ? 4294967295 : 1) / 2 | 0; }*/ /*prod.member: foo1:function(param) { return (param ? 4294967295 : 1) / 2 | 0; }*/ int foo1(bool param) { var a = param ? 0xFFFFFFFF : 1; return a ~/ 2; // Above can be compiled to division followed by truncate. // present: ' / 2 | 0' } @pragma('dart2js:noInline') /*spec.member: foo2:function(param) { return (H.boolConversionCheck(param) ? 4294967295 : 1) / 3 | 0; }*/ /*prod.member: foo2:function(param) { return (param ? 4294967295 : 1) / 3 | 0; }*/ int foo2(bool param) { var a = param ? 0xFFFFFFFF : 1; return a ~/ 3; // Above can be compiled to division followed by truncate. // present: ' / 3 | 0' } @pragma('dart2js:noInline') /*spec.member: foo3:function(param) { return C.JSInt_methods._tdivFast$1(H.boolConversionCheck(param) ? 4294967295 : -1, 2); }*/ /*prod.member: foo3:function(param) { return C.JSInt_methods._tdivFast$1(param ? 4294967295 : -1, 2); }*/ int foo3(bool param) { var a = param ? 0xFFFFFFFF : -1; return a ~/ 2; // Potentially negative inputs go via '_tdivFast' fast helper. // present: '_tdivFast' } @pragma('dart2js:noInline') /*spec.member: foo4:function(param1, param2) { return C.JSInt_methods.$tdiv(H.boolConversionCheck(param1) ? 4294967295 : 0, param2); }*/ /*prod.member: foo4:function(param1, param2) { return C.JSInt_methods.$tdiv(param1 ? 4294967295 : 0, param2); }*/ int foo4(bool param1, int param2) { var a = param1 ? 0xFFFFFFFF : 0; return a ~/ param2; // Unknown divisor goes via full implementation. // present: '$tdiv' // absent: '/' } @pragma('dart2js:noInline') /*spec.member: foo5:function(param1, param2) { var a = H.boolConversionCheck(param1) ? 4294967295 : 0; return C.JSInt_methods.$tdiv(a, H.boolConversionCheck(param2) ? 3 : 4); }*/ /*prod.member: foo5:function(param1, param2) { var a = param1 ? 4294967295 : 0; return C.JSInt_methods.$tdiv(a, param2 ? 3 : 4); }*/ int foo5(bool param1, bool param2) { var a = param1 ? 0xFFFFFFFF : 0; var b = param2 ? 3 : 4; return a ~/ b; // We could optimize this with range analysis, but type inference summarizes // '3 or 4' to uint31, which is not >= 2. // present: '$tdiv' // absent: '/' } @pragma('dart2js:noInline') /*spec.member: foo_regress_37502:function(param1, param2) { var a = H.boolConversionCheck(param1) ? 1.2 : 12.3; return C.JSInt_methods.gcd$1(C.JSNumber_methods.$tdiv(a, H.boolConversionCheck(param2) ? 3.14 : 2.81), 2); }*/ /*prod.member: foo_regress_37502:function(param1, param2) { var a = param1 ? 1.2 : 12.3; return C.JSInt_methods.gcd$1(C.JSNumber_methods.$tdiv(a, param2 ? 3.14 : 2.81), 2); }*/ foo_regress_37502(param1, param2) { var a = param1 ? 1.2 : 12.3; var b = param2 ? 3.14 : 2.81; return (a ~/ b).gcd(2); // The result of ~/ is int; gcd is defined only on int and is too complex // to be inlined. // // present: 'JSInt_methods.gcd' }