Profiler experiments: remove "stable on startup" rule

Review URL: https://chromiumcodereview.appspot.com/9864030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/full-codegen.cc

@@ -330,9 +330,6 @@ bool FullCodeGenerator::MakeCode(CompilationInfo* info) {
   code->set_stack_check_table_offset(table_offset);
   CodeGenerator::PrintCode(code, info);
   info->SetCode(code);  // May be an empty handle.
-  if (!code.is_null()) {
-    isolate->runtime_profiler()->NotifyCodeGenerated(code->instruction_size());
-  }
 #ifdef ENABLE_GDB_JIT_INTERFACE
   if (FLAG_gdbjit && !code.is_null()) {
     GDBJITLineInfo* lineinfo =

src/runtime-profiler.cc

@@ -313,14 +313,6 @@ void RuntimeProfiler::OptimizeNow() {
         // If no IC was patched since the last tick and this function is very
         // small, optimistically optimize it now.
         Optimize(function, "small function");
-      } else if (!code_generated_ &&
-          !any_ic_changed_ &&
-          total_code_generated_ > 0 &&
-          total_code_generated_ < 2000) {
-        // If no code was generated and no IC was patched since the last tick,
-        // but a little code has already been generated since last Reset(),
-        // then type info might already be stable and we can optimize now.
-        Optimize(function, "stable on startup");
       } else {
         shared_code->set_profiler_ticks(ticks + 1);
       }
@@ -341,7 +333,6 @@ void RuntimeProfiler::OptimizeNow() {
   }
   if (FLAG_watch_ic_patching) {
     any_ic_changed_ = false;
-    code_generated_ = false;
   } else {  // !FLAG_watch_ic_patching
     // Add the collected functions as samples. It's important not to do
     // this as part of collecting them because this will interfere with
@@ -371,9 +362,7 @@ void RuntimeProfiler::SetUp() {
 
 
 void RuntimeProfiler::Reset() {
-  if (FLAG_watch_ic_patching) {
-    total_code_generated_ = 0;
-  } else {  // !FLAG_watch_ic_patching
+  if (!FLAG_watch_ic_patching) {
     sampler_threshold_ = kSamplerThresholdInit;
     sampler_threshold_size_factor_ = kSamplerThresholdSizeFactorInit;
     sampler_ticks_until_threshold_adjustment_ =

src/runtime-profiler.h

@@ -63,13 +63,6 @@ class RuntimeProfiler {
 
   void NotifyICChanged() { any_ic_changed_ = true; }
 
-  void NotifyCodeGenerated(int generated_code_size) {
-    if (FLAG_watch_ic_patching) {
-      code_generated_ = true;
-      total_code_generated_ += generated_code_size;
-    }
-  }
-
   // Rate limiting support.
 
   // VM thread interface.
@@ -130,7 +123,6 @@ class RuntimeProfiler {
 
   bool any_ic_changed_;
   bool code_generated_;
-  int total_code_generated_;
 
   // Possible state values:
   //   -1            => the profiler thread is waiting on the semaphore