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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 #include "test/cctest/cctest.h" | 6 #include "test/cctest/cctest.h" |
7 | 7 |
8 #include "src/api.h" | 8 #include "src/api.h" |
9 #include "src/debug/debug.h" | 9 #include "src/debug/debug.h" |
10 #include "src/execution.h" | 10 #include "src/execution.h" |
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262 // There should be one IC. | 262 // There should be one IC. |
263 Handle<TypeFeedbackVector> feedback_vector = | 263 Handle<TypeFeedbackVector> feedback_vector = |
264 Handle<TypeFeedbackVector>(f->feedback_vector(), isolate); | 264 Handle<TypeFeedbackVector>(f->feedback_vector(), isolate); |
265 FeedbackVectorSlot slot(0); | 265 FeedbackVectorSlot slot(0); |
266 CallICNexus nexus(feedback_vector, slot); | 266 CallICNexus nexus(feedback_vector, slot); |
267 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); | 267 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); |
268 | 268 |
269 CompileRun("f(foo); f(foo);"); | 269 CompileRun("f(foo); f(foo);"); |
270 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); | 270 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); |
271 CHECK_EQ(3, nexus.ExtractCallCount()); | 271 CHECK_EQ(3, nexus.ExtractCallCount()); |
| 272 |
| 273 // Send the IC megamorphic, but we should still have incrementing counts. |
| 274 CompileRun("f(function() { return 12; });"); |
| 275 CHECK_EQ(GENERIC, nexus.StateFromFeedback()); |
| 276 CHECK_EQ(4, nexus.ExtractCallCount()); |
272 } | 277 } |
273 | 278 |
274 TEST(VectorConstructCounts) { | 279 TEST(VectorConstructCounts) { |
275 if (i::FLAG_always_opt) return; | 280 if (i::FLAG_always_opt) return; |
276 CcTest::InitializeVM(); | 281 CcTest::InitializeVM(); |
277 LocalContext context; | 282 LocalContext context; |
278 v8::HandleScope scope(context->GetIsolate()); | 283 v8::HandleScope scope(context->GetIsolate()); |
279 Isolate* isolate = CcTest::i_isolate(); | 284 Isolate* isolate = CcTest::i_isolate(); |
280 | 285 |
281 // Make sure function f has a call that uses a type feedback slot. | 286 // Make sure function f has a call that uses a type feedback slot. |
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571 // There should be one IC slot. | 576 // There should be one IC slot. |
572 Handle<TypeFeedbackVector> feedback_vector(f->feedback_vector()); | 577 Handle<TypeFeedbackVector> feedback_vector(f->feedback_vector()); |
573 FeedbackVectorHelper helper(feedback_vector); | 578 FeedbackVectorHelper helper(feedback_vector); |
574 CHECK_EQ(1, helper.slot_count()); | 579 CHECK_EQ(1, helper.slot_count()); |
575 FeedbackVectorSlot slot(0); | 580 FeedbackVectorSlot slot(0); |
576 StoreICNexus nexus(feedback_vector, slot); | 581 StoreICNexus nexus(feedback_vector, slot); |
577 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); | 582 CHECK_EQ(MONOMORPHIC, nexus.StateFromFeedback()); |
578 } | 583 } |
579 | 584 |
580 } // namespace | 585 } // namespace |
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