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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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3865 } | 3865 } |
3866 return NULL; | 3866 return NULL; |
3867 } | 3867 } |
3868 | 3868 |
3869 | 3869 |
3870 static void CheckVectorIC(Handle<JSFunction> f, int ic_slot_index, | 3870 static void CheckVectorIC(Handle<JSFunction> f, int ic_slot_index, |
3871 InlineCacheState desired_state) { | 3871 InlineCacheState desired_state) { |
3872 Handle<TypeFeedbackVector> vector = | 3872 Handle<TypeFeedbackVector> vector = |
3873 Handle<TypeFeedbackVector>(f->shared()->feedback_vector()); | 3873 Handle<TypeFeedbackVector>(f->shared()->feedback_vector()); |
3874 FeedbackVectorICSlot slot(ic_slot_index); | 3874 FeedbackVectorICSlot slot(ic_slot_index); |
3875 LoadICNexus nexus(vector, slot); | 3875 if (vector->GetKind(slot) == Code::LOAD_IC) { |
3876 CHECK(nexus.StateFromFeedback() == desired_state); | 3876 LoadICNexus nexus(vector, slot); |
| 3877 CHECK(nexus.StateFromFeedback() == desired_state); |
| 3878 } else { |
| 3879 CHECK(vector->GetKind(slot) == Code::KEYED_LOAD_IC); |
| 3880 KeyedLoadICNexus nexus(vector, slot); |
| 3881 CHECK(nexus.StateFromFeedback() == desired_state); |
| 3882 } |
3877 } | 3883 } |
3878 | 3884 |
3879 | 3885 |
3880 static void CheckVectorICCleared(Handle<JSFunction> f, int ic_slot_index) { | 3886 static void CheckVectorICCleared(Handle<JSFunction> f, int ic_slot_index) { |
3881 Handle<TypeFeedbackVector> vector = | 3887 Handle<TypeFeedbackVector> vector = |
3882 Handle<TypeFeedbackVector>(f->shared()->feedback_vector()); | 3888 Handle<TypeFeedbackVector>(f->shared()->feedback_vector()); |
3883 FeedbackVectorICSlot slot(ic_slot_index); | 3889 FeedbackVectorICSlot slot(ic_slot_index); |
3884 LoadICNexus nexus(vector, slot); | 3890 LoadICNexus nexus(vector, slot); |
3885 CHECK(IC::IsCleared(&nexus)); | 3891 CHECK(IC::IsCleared(&nexus)); |
3886 } | 3892 } |
3887 | 3893 |
3888 | 3894 |
| 3895 TEST(ICInBuiltInIsClearedAppropriately) { |
| 3896 if (i::FLAG_always_opt) return; |
| 3897 CcTest::InitializeVM(); |
| 3898 v8::HandleScope scope(CcTest::isolate()); |
| 3899 |
| 3900 Handle<JSFunction> apply; |
| 3901 { |
| 3902 LocalContext env; |
| 3903 v8::Local<v8::Value> res = CompileRun("Function.apply"); |
| 3904 Handle<JSObject> maybe_apply = |
| 3905 v8::Utils::OpenHandle(*v8::Handle<v8::Object>::Cast(res)); |
| 3906 apply = Handle<JSFunction>::cast(maybe_apply); |
| 3907 TypeFeedbackVector* vector = apply->shared()->feedback_vector(); |
| 3908 CHECK(vector->ICSlots() == 1); |
| 3909 CheckVectorIC(apply, 0, UNINITIALIZED); |
| 3910 CompileRun( |
| 3911 "function b(a1, a2, a3) { return a1 + a2 + a3; }" |
| 3912 "function fun(bar) { bar.apply({}, [1, 2, 3]); };" |
| 3913 "fun(b); fun(b)"); |
| 3914 CheckVectorIC(apply, 0, MONOMORPHIC); |
| 3915 } |
| 3916 |
| 3917 // Fire context dispose notification. |
| 3918 CcTest::isolate()->ContextDisposedNotification(); |
| 3919 SimulateIncrementalMarking(CcTest::heap()); |
| 3920 CcTest::heap()->CollectAllGarbage(); |
| 3921 |
| 3922 // The IC in apply has been cleared, ready to learn again. |
| 3923 CheckVectorIC(apply, 0, PREMONOMORPHIC); |
| 3924 } |
| 3925 |
| 3926 |
3889 TEST(IncrementalMarkingPreservesMonomorphicConstructor) { | 3927 TEST(IncrementalMarkingPreservesMonomorphicConstructor) { |
3890 if (i::FLAG_always_opt) return; | 3928 if (i::FLAG_always_opt) return; |
3891 CcTest::InitializeVM(); | 3929 CcTest::InitializeVM(); |
3892 v8::HandleScope scope(CcTest::isolate()); | 3930 v8::HandleScope scope(CcTest::isolate()); |
3893 | 3931 |
3894 // Prepare function f that contains a monomorphic IC for object | 3932 // Prepare function f that contains a monomorphic IC for object |
3895 // originating from the same native context. | 3933 // originating from the same native context. |
3896 CompileRun( | 3934 CompileRun( |
3897 "function fun() { this.x = 1; };" | 3935 "function fun() { this.x = 1; };" |
3898 "function f(o) { return new o(); } f(fun); f(fun);"); | 3936 "function f(o) { return new o(); } f(fun); f(fun);"); |
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6434 | 6472 |
6435 PrintF("Context size : %d bytes\n", measure.Size()); | 6473 PrintF("Context size : %d bytes\n", measure.Size()); |
6436 PrintF("Context object count: %d\n", measure.Count()); | 6474 PrintF("Context object count: %d\n", measure.Count()); |
6437 | 6475 |
6438 CHECK_LE(1000, measure.Count()); | 6476 CHECK_LE(1000, measure.Count()); |
6439 CHECK_LE(50000, measure.Size()); | 6477 CHECK_LE(50000, measure.Size()); |
6440 | 6478 |
6441 CHECK_LE(measure.Count(), count_upper_limit); | 6479 CHECK_LE(measure.Count(), count_upper_limit); |
6442 CHECK_LE(measure.Size(), size_upper_limit); | 6480 CHECK_LE(measure.Size(), size_upper_limit); |
6443 } | 6481 } |
6444 | |
6445 } // namespace internal | 6482 } // namespace internal |
6446 } // namespace v8 | 6483 } // namespace v8 |
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