Home | History | Annotate | Download | only in regress 
      1 // Copyright 2013 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 // Test deopt after generic store with effect context.
     31 var pro = { x : 1 }
     32 var a = {}
     33 a.__proto__ = pro
     34 delete pro.x
     35 
     36 function g(o) {
     37   return 7 + (o.z = 1, 20);
     38 }
     39 
     40 g(a);
     41 g(a);
     42 %OptimizeFunctionOnNextCall(g);
     43 Object.defineProperty(pro, "z", {
     44     set: function(v) { %DeoptimizeFunction(g); },
     45     get: function() { return 20; }
     46 });
     47 
     48 assertEquals(27, g(a));
     49 
     50 // Test deopt after polymorphic as monomorphic store with effect context.
     51 
     52 var i = { z : 2, r : 1 }
     53 var j = { z : 2 }
     54 var p = { a : 10 }
     55 var pp = { a : 20, b : 1 }
     56 
     57 function bar(o, p) {
     58   return 7 + (o.z = 1, p.a);
     59 }
     60 
     61 bar(i, p);
     62 bar(i, p);
     63 bar(j, p);
     64 %OptimizeFunctionOnNextCall(bar);
     65 assertEquals(27, bar(i, pp));
     66 
     67 // Test deopt after polymorphic store with effect context.
     68 
     69 var i = { r : 1, z : 2 }
     70 var j = { z : 2 }
     71 var p = { a : 10 }
     72 var pp = { a : 20, b : 1 }
     73 
     74 function bar1(o, p) {
     75   return 7 + (o.z = 1, p.a);
     76 }
     77 
     78 bar1(i, p);
     79 bar1(i, p);
     80 bar1(j, p);
     81 %OptimizeFunctionOnNextCall(bar1);
     82 assertEquals(27, bar1(i, pp));
     83