[turbofan]: Implement tail calls with more callee than caller parameters

src/compiler/instruction-selector-impl.h

Index: src/compiler/instruction-selector-impl.h
diff --git a/src/compiler/instruction-selector-impl.h b/src/compiler/instruction-selector-impl.h
index 8543aa0b19604dec163c9801a210ec686d0ee691..7136de96b1d6bda3d7216e43e675ca3808eef2b5 100644
--- a/src/compiler/instruction-selector-impl.h
+++ b/src/compiler/instruction-selector-impl.h
@@ -128,9 +128,15 @@ class OperandGenerator {
                                   reg.code(), GetVReg(node)));
   }
 
-  InstructionOperand UseExplicit(Register reg) {
+  InstructionOperand UseExplicit(LinkageLocation location) {
     MachineType machine_type = InstructionSequence::DefaultRepresentation();
-    return ExplicitOperand(LocationOperand::REGISTER, machine_type, reg.code());
+    if (location.IsRegister()) {
+      return ExplicitOperand(LocationOperand::REGISTER, machine_type,
+                             location.AsRegister());
+    } else {
+      return ExplicitOperand(LocationOperand::STACK_SLOT, machine_type,
+                             location.GetLocation());
+    }
   }
 
   InstructionOperand UseImmediate(Node* node) {
@@ -142,6 +148,18 @@ class OperandGenerator {
     return Use(node, ToUnallocatedOperand(location, type, GetVReg(node)));
   }
 
+  // Used to force gap moves from the from_location to the to_location
+  // immediately before an instruction.
+  InstructionOperand UsePointerLocation(LinkageLocation to_location,
+                                        LinkageLocation from_location) {
+    MachineType type = static_cast<MachineType>(kTypeAny | kMachPtr);
+    UnallocatedOperand casted_from_operand =
+        UnallocatedOperand::cast(TempLocation(from_location, type));
+    selector_->Emit(kArchNop, casted_from_operand);
+    return ToUnallocatedOperand(to_location, type,
+                                casted_from_operand.virtual_register());
+  }
+
   InstructionOperand TempRegister() {
     return UnallocatedOperand(UnallocatedOperand::MUST_HAVE_REGISTER,
                               UnallocatedOperand::USED_AT_START,