X87: Type Feedback Vector: Calculate profiler counts on the fly.

  port 2b63d6b0 (r32693)

  original commit message:
  It's cumbersome to maintain IC profiler statistics all the time.
  Let's just do it as needed.

BUG=

Review URL: https://codereview.chromium.org/1511903002

Cr-Commit-Position: refs/heads/master@{#32697}

src/x87/code-stubs-x87.cc

@@ -1792,10 +1792,6 @@ 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);
@@ -1868,9 +1864,6 @@ 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);
@@ -1898,9 +1891,6 @@ 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),