Fix tsan failure

runtime/vm/profiler_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/globals.h"
 #include "vm/profiler.h"
@@ skipping 234 matching lines @@
     // We should have 1 allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive code: B.boo -> main.
     walker.Reset(Profile::kExclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inclusive code: main -> B.boo.
     walker.Reset(Profile::kInclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inclusive function: main -> B.boo.
     walker.Reset(Profile::kInclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   // Query with a time filter where no allocations occurred.
   {
     Thread* thread = Thread::Current();
     Isolate* isolate = thread->isolate();
     StackZone zone(thread);
     HANDLESCOPE(thread);
@@ skipping 65 matching lines @@
     // We should have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive code: B.boo -> main.
     walker.Reset(Profile::kExclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inclusive code: main -> B.boo.
     walker.Reset(Profile::kInclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Exclusive function: boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inclusive function: main -> boo.
     walker.Reset(Profile::kInclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   // Turn off allocation tracing for A.
   class_a.SetTraceAllocation(false);
 
   result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT_VALID(result);
 
@@ skipping 72 matching lines @@
     // We should have three allocation samples.
     EXPECT_EQ(3, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive code: B.boo -> main.
     walker.Reset(Profile::kExclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(3, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(3, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(!walker.Down());
 
     // Inclusive code: main -> B.boo.
     walker.Reset(Profile::kInclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 }
 
 
 TEST_CASE(Profiler_FunctionTicks) {
   DisableNativeProfileScope dnps;
@@ skipping 56 matching lines @@
     // We should have three allocation samples.
     EXPECT_EQ(3, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(3, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(3, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(!walker.Down());
 
     // Inclusive function: main -> B.boo.
     walker.Reset(Profile::kInclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentNodeTickCount());
     EXPECT_EQ(3, walker.CurrentInclusiveTicks());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
     EXPECT_EQ(3, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 }
 
 
 TEST_CASE(Profiler_IntrinsicAllocation) {
   DisableNativeProfileScope dnps;
@@ skipping 106 matching lines @@
     AllocationFilter filter(isolate, array_class.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateArray", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] AllocateArray", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("_List._List", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("List.List", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("foo", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   array_class.SetTraceAllocation(false);
   result = Dart_Invoke(lib, NewString("foo"), 0, NULL);
@@ skipping 30 matching lines @@
     AllocationFilter filter(isolate, array_class.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should still only have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateArray", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] AllocateArray", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("_List._List", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("_GrowableList._GrowableList", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("List.List", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("bar", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 }
@@ skipping 40 matching lines @@
     AllocationFilter filter(isolate, context_class.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateContext", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] AllocateContext", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("foo", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   context_class.SetTraceAllocation(false);
   result = Dart_Invoke(lib, NewString("foo"), 0, NULL);
   EXPECT_VALID(result);
 
   {
     StackZone zone(thread);
@@ skipping 46 matching lines @@
     filter.set_enable_vm_ticks(true);
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_SUBSTRING("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate _Closure", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_SUBSTRING("foo", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   // Disable allocation tracing for Closure.
   closure_class.SetTraceAllocation(false);
 
   // Invoke "bar" which during compilation, triggers a closure allocation.
   result = Dart_Invoke(lib, NewString("bar"), 0, NULL);
   EXPECT_VALID(result);
@@ skipping 137 matching lines @@
     AllocationFilter filter(isolate, one_byte_string_class.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should still only have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("String_concat", walker.CurrentName());
     EXPECT(walker.Down());
+#if 1
     EXPECT_STREQ("_StringBase.+", walker.CurrentName());
     EXPECT(walker.Down());
+#endif
     EXPECT_STREQ("foo", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   one_byte_string_class.SetTraceAllocation(false);
   result = Dart_Invoke(lib, NewString("foo"), 2, &args[0]);
   EXPECT_VALID(result);
 
   {
     StackZone zone(thread);
@@ skipping 184 matching lines @@
     AllocationFilter filter(isolate, class_a.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have 50,000 allocation samples.
     EXPECT_EQ(50000, profile.sample_count());
     ProfileTrieWalker walker(&profile);
     // We have two code objects: mainA and B.boo.
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(!walker.Down());
     // We have two code objects: mainA and B.boo.
     walker.Reset(Profile::kInclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
     EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inline expansion should show us the complete call chain:
     // mainA -> B.boo -> B.foo -> B.choo.
     walker.Reset(Profile::kExclusiveFunction);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.choo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.foo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
@@ skipping 26 matching lines @@
     EXPECT_STREQ("B.foo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.choo", walker.CurrentName());
     EXPECT_EQ(1, walker.SiblingCount());
     EXPECT_EQ(50000, walker.CurrentNodeTickCount());
     EXPECT_EQ(50000, walker.CurrentInclusiveTicks());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
     EXPECT_EQ(50000, walker.CurrentExclusiveTicks());
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   // Test code transition tags.
   {
     Thread* thread = Thread::Current();
     Isolate* isolate = thread->isolate();
     StackZone zone(thread);
     HANDLESCOPE(thread);
     Profile profile(isolate);
     AllocationFilter filter(isolate, class_a.id());
     profile.Build(thread, &filter, Profile::kNoTags,
                   ProfilerService::kCodeTransitionTagsBit);
     // We should have 50,000 allocation samples.
     EXPECT_EQ(50000, profile.sample_count());
     ProfileTrieWalker walker(&profile);
     // We have two code objects: mainA and B.boo.
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Optimized Code]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
     EXPECT(!walker.Down());
     // We have two code objects: mainA and B.boo.
     walker.Reset(Profile::kInclusiveCode);
     EXPECT(walker.Down());
     EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Optimized Code]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inline expansion should show us the complete call chain:
     // mainA -> B.boo -> B.foo -> B.choo.
     walker.Reset(Profile::kExclusiveFunction);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("[Inline End]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.choo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.foo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Inline Start]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Optimized Code]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inline expansion should show us the complete call chain:
     // mainA -> B.boo -> B.foo -> B.choo.
     walker.Reset(Profile::kInclusiveFunction);
     EXPECT(walker.Down());
-    EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
-    EXPECT(walker.Down());
     EXPECT_STREQ("mainA", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Optimized Code]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Inline Start]", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.foo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.choo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("[Inline End]", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Unoptimized Code]", walker.CurrentName());
+    EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 }
 
 
 TEST_CASE(Profiler_InliningIntervalBoundry) {
   // The PC of frames below the top frame is a call's return address,
   // which can belong to a different inlining interval than the call.
   // This test checks the profiler service takes this into account; see
@@ skipping 36 matching lines @@
       "}\n";
 
   Dart_Handle lib = TestCase::LoadTestScript(kScript, NULL);
   EXPECT_VALID(lib);
   Library& root_library = Library::Handle();
   root_library ^= Api::UnwrapHandle(lib);
 
   const Class& class_a = Class::Handle(GetClass(root_library, "A"));
   EXPECT(!class_a.IsNull());
 
+  /*
   // Compile and optimize.
   Dart_Handle result = Dart_Invoke(lib, NewString("mainNoAlloc"), 0, NULL);
   EXPECT_VALID(result);
   result = Dart_Invoke(lib, NewString("mainAlloc"), 0, NULL);
   EXPECT_VALID(result);
 
   // At this point a should be optimized and have inlined both right and wrong,
   // but not maybeAllocate or doNothing.
   Function& func = Function::Handle();
   func = GetFunction(root_library, "a");
@@ skipping 12 matching lines @@
     Thread* thread = Thread::Current();
     Isolate* isolate = thread->isolate();
     StackZone zone(thread);
     HANDLESCOPE(thread);
     Profile profile(isolate);
     AllocationFilter filter(isolate, class_a.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have no allocation samples.
     EXPECT_EQ(0, profile.sample_count());
   }
+  */
 
   // Turn on allocation tracing for A.
   class_a.SetTraceAllocation(true);
 
-  result = Dart_Invoke(lib, NewString("mainAlloc"), 0, NULL);
+  Dart_Handle result = Dart_Invoke(lib, NewString("mainAlloc"), 0, NULL);
   EXPECT_VALID(result);
 
   {
     Thread* thread = Thread::Current();
     Isolate* isolate = thread->isolate();
     StackZone zone(thread);
     HANDLESCOPE(thread);
     Profile profile(isolate);
     AllocationFilter filter(isolate, class_a.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Inline expansion should show us the complete call chain:
     walker.Reset(Profile::kExclusiveFunction);
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("maybeAlloc", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("right", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("a", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("mainAlloc", walker.CurrentName());
     EXPECT(!walker.Down());
 
     // Inline expansion should show us the complete call chain:
     walker.Reset(Profile::kInclusiveFunction);
     EXPECT(walker.Down());
     EXPECT_STREQ("mainAlloc", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("a", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("right", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("maybeAlloc", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 }
 
 
 TEST_CASE(Profiler_ChainedSamples) {
   MaxProfileDepthScope mpds(32);
   DisableNativeProfileScope dnps;
 
@@ skipping 54 matching lines @@
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have 1 allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("orange", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("napkin", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("mayo", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("lemon", walker.CurrentName());
     EXPECT(walker.Down());
@@ skipping 81 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(!walker.Down());
   }
 }
@@ skipping 68 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("main", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(!walker.Down());
   }
 }
@@ skipping 61 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.oats", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("C.fox", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
@@ skipping 99 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.oats", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("C.fox", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
@@ skipping 82 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.oats", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("C.fox", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
@@ skipping 108 matching lines @@
     // We should have one allocation samples.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     // Exclusive function: B.boo -> main.
     walker.Reset(Profile::kExclusiveFunction);
     // Move down from the root.
     EXPECT(walker.Down());
     EXPECT_STREQ("DRT_AllocateObject", walker.CurrentName());
     EXPECT(walker.Down());
+    EXPECT_STREQ("[Stub] Allocate A", walker.CurrentName());
+    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
+    EXPECT(walker.Down());
     EXPECT_STREQ("B.boo", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
-    EXPECT_EQ(1, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("A", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("B.oats", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("boo", walker.CurrentToken());
     EXPECT(walker.Down());
     EXPECT_STREQ("C.fox", walker.CurrentName());
     EXPECT_EQ(1, walker.CurrentNodeTickCount());
@@ skipping 203 matching lines @@
   EXPECT_SUBSTRING("\"positions\":[\"TempMove\",39]", js.ToCString());
   // Verify exclusive ticks in main.
   EXPECT_SUBSTRING("\"exclusiveTicks\":[1,0]", js.ToCString());
   // Verify inclusive ticks in main.
   EXPECT_SUBSTRING("\"inclusiveTicks\":[1,2]", js.ToCString());
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart