Update V8 to version 4.1.0.21
This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.
Original commit message:
Version 4.1.0.21 (cherry-pick)
Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412
Unlink pages from the space page list after evacuation.
BUG=430201
LOG=N
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/953813002
Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}
---
FPIIM-449
Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/test/cctest/test-cpu-profiler.cc b/test/cctest/test-cpu-profiler.cc
index 8d429d2..0e2dd91 100644
--- a/test/cctest/test-cpu-profiler.cc
+++ b/test/cctest/test-cpu-profiler.cc
@@ -1064,6 +1064,104 @@
}
+// This tests checks distribution of the samples through the source lines.
+TEST(TickLines) {
+ CcTest::InitializeVM();
+ LocalContext env;
+ i::FLAG_turbo_source_positions = true;
+ i::Isolate* isolate = CcTest::i_isolate();
+ i::Factory* factory = isolate->factory();
+ i::HandleScope scope(isolate);
+
+ i::EmbeddedVector<char, 512> script;
+
+ const char* func_name = "func";
+ i::SNPrintF(script,
+ "function %s() {\n"
+ " var n = 0;\n"
+ " var m = 100*100;\n"
+ " while (m > 1) {\n"
+ " m--;\n"
+ " n += m * m * m;\n"
+ " }\n"
+ "}\n"
+ "%s();\n",
+ func_name, func_name);
+
+ CompileRun(script.start());
+
+ i::Handle<i::JSFunction> func = v8::Utils::OpenHandle(
+ *v8::Local<v8::Function>::Cast((*env)->Global()->Get(v8_str(func_name))));
+ CHECK_NE(NULL, func->shared());
+ CHECK_NE(NULL, func->shared()->code());
+ i::Code* code = NULL;
+ if (func->code()->is_optimized_code()) {
+ code = func->code();
+ } else {
+ CHECK(func->shared()->code() == func->code() || !i::FLAG_crankshaft);
+ code = func->shared()->code();
+ }
+ CHECK_NE(NULL, code);
+ i::Address code_address = code->instruction_start();
+ CHECK_NE(NULL, code_address);
+
+ CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate->heap());
+ profiles->StartProfiling("", false);
+ ProfileGenerator generator(profiles);
+ ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
+ &generator, NULL, v8::base::TimeDelta::FromMicroseconds(100));
+ processor->Start();
+ CpuProfiler profiler(isolate, profiles, &generator, processor);
+
+ // Enqueue code creation events.
+ i::Handle<i::String> str = factory->NewStringFromAsciiChecked(func_name);
+ int line = 1;
+ int column = 1;
+ profiler.CodeCreateEvent(i::Logger::FUNCTION_TAG, code, func->shared(), NULL,
+ *str, line, column);
+
+ // Enqueue a tick event to enable code events processing.
+ EnqueueTickSampleEvent(processor, code_address);
+
+ processor->StopSynchronously();
+
+ CpuProfile* profile = profiles->StopProfiling("");
+ CHECK_NE(NULL, profile);
+
+ // Check the state of profile generator.
+ CodeEntry* func_entry = generator.code_map()->FindEntry(code_address);
+ CHECK_NE(NULL, func_entry);
+ CHECK_EQ(func_name, func_entry->name());
+ const i::JITLineInfoTable* line_info = func_entry->line_info();
+ CHECK_NE(NULL, line_info);
+ CHECK(!line_info->empty());
+
+ // Check the hit source lines using V8 Public APIs.
+ const i::ProfileTree* tree = profile->top_down();
+ ProfileNode* root = tree->root();
+ CHECK_NE(NULL, root);
+ ProfileNode* func_node = root->FindChild(func_entry);
+ CHECK_NE(NULL, func_node);
+
+ // Add 10 faked ticks to source line #5.
+ int hit_line = 5;
+ int hit_count = 10;
+ for (int i = 0; i < hit_count; i++) func_node->IncrementLineTicks(hit_line);
+
+ unsigned int line_count = func_node->GetHitLineCount();
+ CHECK_EQ(2, line_count); // Expect two hit source lines - #1 and #5.
+ ScopedVector<v8::CpuProfileNode::LineTick> entries(line_count);
+ CHECK(func_node->GetLineTicks(&entries[0], line_count));
+ int value = 0;
+ for (int i = 0; i < entries.length(); i++)
+ if (entries[i].line == hit_line) {
+ value = entries[i].hit_count;
+ break;
+ }
+ CHECK_EQ(hit_count, value);
+}
+
+
static const char* call_function_test_source = "function bar(iterations) {\n"
"}\n"
"function start(duration) {\n"