Type Feedback Vector: Calculate profiler counts on the fly.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 70ac4562e4ee2ce7434f870d2d568588133256d5..6c7420e84f0c5635266a052ad3c5a6c83e83be3a 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -2085,10 +2085,6 @@ void CallICStub::Generate(MacroAssembler* masm) {
   // edx - slot id
   // ebx - vector
   Isolate* isolate = masm->isolate();
-  const int with_types_offset =
-      FixedArray::OffsetOfElementAt(TypeFeedbackVector::kWithTypesIndex);
-  const int generic_offset =
-      FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
   Label extra_checks_or_miss, call, call_function;
   int argc = arg_count();
   ParameterCount actual(argc);
@@ -2161,9 +2157,6 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ mov(
       FieldOperand(ebx, edx, times_half_pointer_size, FixedArray::kHeaderSize),
       Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
-  // We have to update statistics for runtime profiling.
-  __ sub(FieldOperand(ebx, with_types_offset), Immediate(Smi::FromInt(1)));
-  __ add(FieldOperand(ebx, generic_offset), Immediate(Smi::FromInt(1)));
 
   __ bind(&call);
   __ Set(eax, argc);
@@ -2191,9 +2184,6 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ cmp(ecx, NativeContextOperand());
   __ j(not_equal, &miss);
 
-  // Update stats.
-  __ add(FieldOperand(ebx, with_types_offset), Immediate(Smi::FromInt(1)));
-
   // Initialize the call counter.
   __ mov(FieldOperand(ebx, edx, times_half_pointer_size,
                       FixedArray::kHeaderSize + kPointerSize),