WIP: type profiling.

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 779d28f05545e0da6712e198f2908bbfd28deda5..93d5a7e6b1b3ed608d409f2f47d6097fe9b57a35 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -786,6 +786,22 @@ void BytecodeGraphBuilder::VisitStaDataPropertyInLiteral() {
   environment()->RecordAfterState(node, Environment::kAttachFrameState);
 }
 
+void BytecodeGraphBuilder::VisitCollectTypeProfile() {
+  PrepareEagerCheckpoint();
+
+  Node* name =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* value =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(1));
+  VectorSlotPair feedback =
+      CreateVectorSlotPair(bytecode_iterator().GetIndexOperand(2));
+
+  const Operator* op = javascript()->CollectTypeProfile(feedback);
+
+  Node* node = NewNode(op, name, value);
+  environment()->RecordAfterState(node, Environment::kAttachFrameState);
+}
+
 void BytecodeGraphBuilder::VisitLdaContextSlot() {
   const Operator* op = javascript()->LoadContext(
       bytecode_iterator().GetUnsignedImmediateOperand(2),