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

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

Index: src/full-codegen/arm64/full-codegen-arm64.cc
diff --git a/src/full-codegen/arm64/full-codegen-arm64.cc b/src/full-codegen/arm64/full-codegen-arm64.cc
index c2ec9b6b27482a35ed5b63614ef695d2860aa479..d1b02eb31e4365d0a0bc7e9b6afc6151bc027e30 100644
--- a/src/full-codegen/arm64/full-codegen-arm64.cc
+++ b/src/full-codegen/arm64/full-codegen-arm64.cc
@@ -132,6 +132,20 @@ void FullCodeGenerator::Generate() {
   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();