Revert of Merged: [cpu-profiler] use new source position information for deoptimization in cpu profiler

test/cctest/test-cpu-profiler.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 48 matching lines @@
   return v8::Local<v8::Function>::Cast(
       env->Global()->Get(env, v8_str(name)).ToLocalChecked());
 }
 
 static size_t offset(const char* src, const char* substring) {
   const char* it = strstr(src, substring);
   CHECK(it);
   return static_cast<size_t>(it - src);
 }
 
-template <typename A, typename B>
-static int dist(A a, B b) {
-  return abs(static_cast<int>(a) - static_cast<int>(b));
-}
-
 static const char* reason(const i::DeoptimizeReason reason) {
   return i::DeoptimizeReasonToString(reason);
 }
 
 TEST(StartStop) {
   i::Isolate* isolate = CcTest::i_isolate();
   CpuProfilesCollection profiles(isolate);
   ProfileGenerator generator(isolate, &profiles);
   std::unique_ptr<ProfilerEventsProcessor> processor(
       new ProfilerEventsProcessor(isolate, &generator,
@@ skipping 1820 matching lines @@
       "}\n"
       "CompareStatementWithThis();\n";
 
   v8::Script::Compile(env.local(), v8_str(source))
       .ToLocalChecked()
       ->Run(env.local())
       .ToLocalChecked();
 }
 
 static const char* inlined_source =
-    "function opt_function(left, right) { var k = left*right; return k + 1; "
-    "}\n";
+    "function opt_function(f) { return f()*f(); }\n";
 //   0.........1.........2.........3.........4....*....5.........6......*..7
 
 
 // deopt at the first level inlined function
 TEST(DeoptAtFirstLevelInlinedSource) {
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   i::FLAG_allow_natives_syntax = true;
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
   v8::Context::Scope context_scope(env);
   ProfilerHelper helper(env);
   i::CpuProfiler* iprofiler =
       reinterpret_cast<i::CpuProfiler*>(helper.profiler());
 
   //   0.........1.........2.........3.........4.........5.........6.........7
   const char* source =
-      "function test(left, right) { return opt_function(left, right); }\n"
+      "function test(f) { return opt_function(f); }\n"
       "\n"
       "startProfiling();\n"
       "\n"
-      "test(10, 10);\n"
+      "test(function(){return 10});test(function(){return 12});\n"
       "\n"
+      "%SetForceInlineFlag(opt_function);\n"
       "%OptimizeFunctionOnNextCall(test)\n"
       "\n"
-      "test(10, 10);\n"
-      "\n"
-      "test(undefined, 1e9);\n"
+      "test(function(){return 100000000000});\n"
       "\n"
       "stopProfiling();\n"
       "\n";
 
   v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
   inlined_script->Run(env).ToLocalChecked();
   int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
 
   v8::Local<v8::Script> script = v8_compile(source);
   script->Run(env).ToLocalChecked();
@@ skipping 14 matching lines @@
   v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
 
   const char* branch[] = {"", "test"};
   const ProfileNode* itest_node =
       GetSimpleBranch(env, profile, branch, arraysize(branch));
   const std::vector<v8::CpuProfileDeoptInfo>& deopt_infos =
       itest_node->deopt_infos();
   CHECK_EQ(1U, deopt_infos.size());
 
   const v8::CpuProfileDeoptInfo& info = deopt_infos[0];
-  CHECK(reason(i::DeoptimizeReason::kNotASmi) == info.deopt_reason ||
-        reason(i::DeoptimizeReason::kNotAHeapNumber) == info.deopt_reason);
+  CHECK_EQ(reason(i::DeoptimizeReason::kNotASmi), info.deopt_reason);
   CHECK_EQ(2U, info.stack.size());
   CHECK_EQ(inlined_script_id, info.stack[0].script_id);
-  CHECK_LE(dist(offset(inlined_source, "*right"), info.stack[0].position), 1);
+  CHECK(abs(static_cast<int>(offset(inlined_source, "*f()")) -
+            static_cast<int>(info.stack[0].position)) <= 1);
   CHECK_EQ(script_id, info.stack[1].script_id);
-  CHECK_EQ(offset(source, "opt_function(left,"), info.stack[1].position);
+  CHECK_EQ(offset(source, "opt_function(f)"), info.stack[1].position);
 
   iprofiler->DeleteProfile(iprofile);
 }
 
 
 // deopt at the second level inlined function
 TEST(DeoptAtSecondLevelInlinedSource) {
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   i::FLAG_allow_natives_syntax = true;
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
   v8::Context::Scope context_scope(env);
   ProfilerHelper helper(env);
   i::CpuProfiler* iprofiler =
       reinterpret_cast<i::CpuProfiler*>(helper.profiler());
 
   //   0.........1.........2.........3.........4.........5.........6.........7
   const char* source =
-      "function test2(left, right) { return opt_function(left, right); }\n"
-      "function test1(left, right) { return test2(left, right); } \n"
+      "function test2(f) { return opt_function(f); }\n"
+      "function test1(f) {  return test2(f); }\n"
       "\n"
       "startProfiling();\n"
       "\n"
-      "test1(10, 10);\n"
+      "test1(function(){return 10});\n"
+      "test1(function(){return 11});\n"
       "\n"
+      "%SetForceInlineFlag(test2);\n"
+      "%SetForceInlineFlag(opt_function);\n"
       "%OptimizeFunctionOnNextCall(test1)\n"
       "\n"
-      "test1(10, 10);\n"
+      "test1(function(){return 12});\n"
       "\n"
-      "test1(undefined, 1e9);\n"
+      "test1(function(){return 100000000000});\n"
       "\n"
       "stopProfiling();\n"
       "\n";
 
   v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
   inlined_script->Run(env).ToLocalChecked();
   int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
 
   v8::Local<v8::Script> script = v8_compile(source);
   script->Run(env).ToLocalChecked();
@@ skipping 17 matching lines @@
   v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
 
   const char* branch[] = {"", "test1"};
   const ProfileNode* itest_node =
       GetSimpleBranch(env, profile, branch, arraysize(branch));
   const std::vector<v8::CpuProfileDeoptInfo>& deopt_infos =
       itest_node->deopt_infos();
   CHECK_EQ(1U, deopt_infos.size());
 
   const v8::CpuProfileDeoptInfo info = deopt_infos[0];
-  CHECK(reason(i::DeoptimizeReason::kNotASmi) == info.deopt_reason ||
-        reason(i::DeoptimizeReason::kNotAHeapNumber) == info.deopt_reason);
+  CHECK_EQ(reason(i::DeoptimizeReason::kNotASmi), info.deopt_reason);
   CHECK_EQ(3U, info.stack.size());
   CHECK_EQ(inlined_script_id, info.stack[0].script_id);
-  CHECK_LE(dist(offset(inlined_source, "*right"), info.stack[0].position), 1);
+  CHECK(abs(static_cast<int>(offset(inlined_source, "*f()")) -
+            static_cast<int>(info.stack[0].position)) <= 1);
   CHECK_EQ(script_id, info.stack[1].script_id);
-  CHECK_EQ(offset(source, "opt_function(left,"), info.stack[1].position);
-  CHECK_EQ(offset(source, "test2(left, right);"), info.stack[2].position);
+  CHECK_EQ(offset(source, "opt_function(f)"), info.stack[1].position);
+  CHECK_EQ(offset(source, "test2(f);"), info.stack[2].position);
 
   iprofiler->DeleteProfile(iprofile);
 }
 
 
 // deopt in untracked function
 TEST(DeoptUntrackedFunction) {
   if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
   i::FLAG_allow_natives_syntax = true;
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
   v8::Context::Scope context_scope(env);
   ProfilerHelper helper(env);
   i::CpuProfiler* iprofiler =
       reinterpret_cast<i::CpuProfiler*>(helper.profiler());
 
   //   0.........1.........2.........3.........4.........5.........6.........7
   const char* source =
       "function test(left, right) { return opt_function(left, right); }\n"
       "\n"
-      "test(10, 10);\n"
+      "test(function(){return 10});\n"
+      "test(function(){return 11});\n"
       "\n"
+      "%SetForceInlineFlag(opt_function);\n"
       "%OptimizeFunctionOnNextCall(test)\n"
       "\n"
-      "test(10, 10);\n"
+      "test(function(){return 10});\n"
       "\n"
       "startProfiling();\n"  // profiler started after compilation.
       "\n"
-      "test(undefined, 10);\n"
+      "test(function(){return 100000000000});\n"
       "\n"
       "stopProfiling();\n"
       "\n";
 
   v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
   inlined_script->Run(env).ToLocalChecked();
 
   v8::Local<v8::Script> script = v8_compile(source);
   script->Run(env).ToLocalChecked();
 
@@ skipping 77 matching lines @@
   printf("Profile JSON: %s\n", profile_json.c_str());
   std::string code = profile_checker + profile_json + ")";
   v8::Local<v8::Value> result =
       CompileRunChecked(CcTest::isolate(), code.c_str());
   v8::String::Utf8Value value(result);
   printf("Check result: %*s\n", value.length(), *value);
   CHECK_EQ(0, value.length());
 
   i::V8::SetPlatformForTesting(old_platform);
 }