PPC/s390: [turbofan] Collect invocation counts and compute relative call frequencies.

src/full-codegen/s390/full-codegen-s390.cc

 // Copyright 2015 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_S390
 
 #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 115 matching lines @@
 
   // Open a frame scope to indicate that there is a frame on the stack.  The
   // MANUAL indicates that the scope shouldn't actually generate code to set up
   // the frame (that is done below).
   FrameScope frame_scope(masm_, StackFrame::MANUAL);
   int prologue_offset = masm_->pc_offset();
 
   info->set_prologue_offset(prologue_offset);
   __ Prologue(info->GeneratePreagedPrologue(), ip, prologue_offset);
 
+  // Increment invocation count for the function.
+  {
+    Comment cmnt(masm_, "[ Increment invocation count");
+    __ LoadP(r6, FieldMemOperand(r3, JSFunction::kLiteralsOffset));
+    __ LoadP(r6, FieldMemOperand(r6, LiteralsArray::kFeedbackVectorOffset));
+    __ LoadP(r1, FieldMemOperand(r6, TypeFeedbackVector::kInvocationCountIndex *
+                                             kPointerSize +
+                                         TypeFeedbackVector::kHeaderSize));
+    __ AddSmiLiteral(r1, r1, Smi::FromInt(1), r0);
+    __ StoreP(r1,
+              FieldMemOperand(
+                  r6, 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.
     DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0);
     OperandStackDepthIncrement(locals_count);
     if (locals_count > 0) {
       if (locals_count >= 128) {
         Label ok;
         __ AddP(ip, sp, Operand(-(locals_count * kPointerSize)));
@@ skipping 3463 matching lines @@
   DCHECK(kOSRBranchInstruction == br_instr);
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_S390