Add %GetCallerJSFunction intrinsic

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index ae9d4c6529e105215eb3c7b64b09c744c69a9673..1c1f3fafd7f11bbe659c093226e3231ed100e19c 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -761,6 +761,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return MarkAsFloat64(node), VisitFloat64InsertHighWord32(node);
     case IrOpcode::kLoadStackPointer:
       return VisitLoadStackPointer(node);
+    case IrOpcode::kLoadFramePointer:
+      return VisitLoadFramePointer(node);
     case IrOpcode::kCheckedLoad: {
       MachineType rep = OpParameter<MachineType>(node);
       MarkAsRepresentation(rep, node);
@@ -791,6 +793,12 @@ void InstructionSelector::VisitLoadStackPointer(Node* node) {
 }
 
 
+void InstructionSelector::VisitLoadFramePointer(Node* node) {
+  OperandGenerator g(this);
+  Emit(kArchFramePointer, g.DefineAsRegister(node));
+}
+
+
 void InstructionSelector::EmitTableSwitch(const SwitchInfo& sw,
                                           InstructionOperand& index_operand) {
   OperandGenerator g(this);