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

src/full-codegen/arm64/full-codegen-arm64.cc

 // Copyright 2013 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_ARM64
 
 #include "src/full-codegen/full-codegen.h"
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
@@ skipping 114 matching lines @@
   // to set up the frame because we do it manually below.
   FrameScope frame_scope(masm_, StackFrame::MANUAL);
 
   // This call emits the following sequence in a way that can be patched for
   // code ageing support:
   //  Push(lr, fp, cp, x1);
   //  Add(fp, jssp, 2 * kPointerSize);
   info->set_prologue_offset(masm_->pc_offset());
   __ Prologue(info->GeneratePreagedPrologue());
 
+  // Increment invocation count for the function.
+  {
+    Comment cmnt(masm_, "[ Increment invocation count");
+    __ Ldr(x11, FieldMemOperand(x1, JSFunction::kLiteralsOffset));
+    __ Ldr(x11, FieldMemOperand(x11, LiteralsArray::kFeedbackVectorOffset));
+    __ Ldr(x10, FieldMemOperand(x11, TypeFeedbackVector::kInvocationCountIndex *
+                                             kPointerSize +
+                                         TypeFeedbackVector::kHeaderSize));
+    __ Add(x10, x10, Operand(Smi::FromInt(1)));
+    __ Str(x10, FieldMemOperand(x11, TypeFeedbackVector::kInvocationCountIndex *
+                                             kPointerSize +
+                                         TypeFeedbackVector::kHeaderSize));
+  }
+
   // Reserve space on the stack for locals.
   { Comment cmnt(masm_, "[ Allocate locals");
     int locals_count = info->scope()->num_stack_slots();
     // Generators allocate locals, if any, in context slots.
     DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0);
     OperandStackDepthIncrement(locals_count);
     if (locals_count > 0) {
       if (locals_count >= 128) {
         Label ok;
         DCHECK(jssp.Is(__ StackPointer()));
@@ skipping 3640 matching lines @@
   }
 
   return INTERRUPT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64