1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --allow-natives-syntax 29 30 (function OneByteSeqStringSetCharDeoptOsr() { 31 function deopt() { 32 %DeoptimizeFunction(f); 33 } 34 35 function f(string, osr) { 36 var world = " world"; 37 %_OneByteSeqStringSetChar(string, 0, (deopt(), 0x48)); 38 39 if (osr) while (%GetOptimizationStatus(f) == 2) {} 40 41 return string + world; 42 } 43 44 assertEquals("Hello " + "world", f("hello", false)); 45 %OptimizeFunctionOnNextCall(f); 46 assertEquals("Hello " + "world", f("hello", true)); 47 })(); 48 49 50 (function OneByteSeqStringSetCharDeopt() { 51 function deopt() { 52 %DeoptimizeFunction(f); 53 } 54 55 function g(x) { 56 } 57 58 function f(string) { 59 g(%_OneByteSeqStringSetChar(string, 0, (deopt(), 0x48))); 60 return string; 61 } 62 63 assertEquals("Hell" + "o", f("hello")); 64 %OptimizeFunctionOnNextCall(f); 65 assertEquals("Hell" + "o", f("hello")); 66 })(); 67 68 69 (function TwoByteSeqStringSetCharDeopt() { 70 function deopt() { 71 %DeoptimizeFunction(f); 72 } 73 74 function g(x) { 75 } 76 77 function f(string) { 78 g(%_TwoByteSeqStringSetChar(string, 0, (deopt(), 0x48))); 79 return string; 80 } 81 82 assertEquals("Hell" + "o", f("\u20ACello")); 83 %OptimizeFunctionOnNextCall(f); 84 assertEquals("Hell" + "o", f("\u20ACello")); 85 })(); 86