13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Flags: --allow-natives-syntax 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Test that we do not generate OSR entry points that have an arguments 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// stack height different from zero. The OSR machinery cannot generate 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// frames for that. 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch(function() { 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "use strict"; 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch var instantReturn = false; 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch function inner() { 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instantReturn) return; 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertSame(3, arguments.length); 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertSame(1, arguments[0]); 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertSame(2, arguments[1]); 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertSame(3, arguments[2]); 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch function outer() { 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inner(1,2,3); 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Trigger OSR, if optimization is not disabled. 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (%GetOptimizationStatus(outer) != 4) { 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (%GetOptimizationCount(outer) == 0) {} 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch outer(); 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch})(); 56