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      1 // Copyright 2015 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Flags: --expose-debug-as debug --allow-natives-syntax --use-inlining
      6 
      7 var Debug = debug.Debug;
      8 
      9 function f1() {
     10   return 1;
     11 }
     12 
     13 function f2() {
     14   return 2;
     15 }
     16 
     17 function f3() {
     18   return f1();
     19 }
     20 
     21 function f4() {
     22   return 4;
     23 }
     24 
     25 
     26 function optimize(f) {
     27   f();
     28   f();
     29   %OptimizeFunctionOnNextCall(f);
     30   f();
     31 }
     32 
     33 optimize(f1);
     34 optimize(f2);
     35 optimize(f3);
     36 
     37 Debug.setListener(function() {});
     38 
     39 assertOptimized(f1);
     40 assertOptimized(f2);
     41 assertOptimized(f3);
     42 
     43 Debug.setBreakPoint(f1, 1);
     44 
     45 // Setting break point deoptimizes f1 and f3 (which inlines f1).
     46 assertUnoptimized(f1);
     47 assertOptimized(f2);
     48 assertUnoptimized(f3);
     49 
     50 // We can optimize with break points set.
     51 optimize(f4);
     52 assertOptimized(f4);
     53 
     54 Debug.setListener(null);
     55