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

src/full-codegen/mips64/full-codegen-mips64.cc

Index: src/full-codegen/mips64/full-codegen-mips64.cc
diff --git a/src/full-codegen/mips64/full-codegen-mips64.cc b/src/full-codegen/mips64/full-codegen-mips64.cc
index f53550371207937b40fd4051d645f8b7ff4467f7..81de0fcc9c440bfb7f6e308a43dc0eb5d9318620 100644
--- a/src/full-codegen/mips64/full-codegen-mips64.cc
+++ b/src/full-codegen/mips64/full-codegen-mips64.cc
@@ -136,6 +136,20 @@ 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");
+    __ ld(a0, FieldMemOperand(a1, JSFunction::kLiteralsOffset));
+    __ ld(a0, FieldMemOperand(a0, LiteralsArray::kFeedbackVectorOffset));
+    __ ld(a4, FieldMemOperand(
+                  a0, TypeFeedbackVector::kInvocationCountIndex * kPointerSize +
+                          TypeFeedbackVector::kHeaderSize));
+    __ Daddu(a4, a4, Operand(Smi::FromInt(1)));
+    __ sd(a4, FieldMemOperand(
+                  a0, TypeFeedbackVector::kInvocationCountIndex * kPointerSize +
+                          TypeFeedbackVector::kHeaderSize));
+  }
+
   { Comment cmnt(masm_, "[ Allocate locals");
     int locals_count = info->scope()->num_stack_slots();
     // Generators allocate locals, if any, in context slots.