[turbofan] Collect invocation counts and compute relative call frequencies.

src/builtins/ia32/builtins-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 572 matching lines @@
   __ mov(kInterpreterBytecodeArrayRegister,
          FieldOperand(eax, SharedFunctionInfo::kFunctionDataOffset));
   __ bind(&bytecode_array_loaded);
 
   // Check whether we should continue to use the interpreter.
   Label switch_to_different_code_kind;
   __ Move(ecx, masm->CodeObject());  // Self-reference to this code.
   __ cmp(ecx, FieldOperand(eax, SharedFunctionInfo::kCodeOffset));
   __ j(not_equal, &switch_to_different_code_kind);
 
+  // Increment invocation count for the function.
+  __ EmitLoadTypeFeedbackVector(ecx);
+  __ add(FieldOperand(ecx,
+                      TypeFeedbackVector::kInvocationCountIndex * kPointerSize +
+                          TypeFeedbackVector::kHeaderSize),
+         Immediate(Smi::FromInt(1)));
+
   // Check function data field is actually a BytecodeArray object.
   if (FLAG_debug_code) {
     __ AssertNotSmi(kInterpreterBytecodeArrayRegister);
     __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE,
                      eax);
     __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
   // Push bytecode array.
   __ push(kInterpreterBytecodeArrayRegister);
@@ skipping 2550 matching lines @@
 
 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
   Generate_OnStackReplacementHelper(masm, true);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32