[turbofan] Support variable size argument popping in TF-generated functions

src/compiler/js-inlining.cc

 // Copyright 2014 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.
 
 #include "src/compiler/js-inlining.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/compilation-info.h"
 #include "src/compiler.h"
@@ skipping 166 matching lines @@
                        jsgraph()->Dead());
     }
   }
 
   NodeVector values(local_zone_);
   NodeVector effects(local_zone_);
   NodeVector controls(local_zone_);
   for (Node* const input : end->inputs()) {
     switch (input->opcode()) {
       case IrOpcode::kReturn:
-        values.push_back(NodeProperties::GetValueInput(input, 0));
+        values.push_back(NodeProperties::GetValueInput(input, 1));
         effects.push_back(NodeProperties::GetEffectInput(input));
         controls.push_back(NodeProperties::GetControlInput(input));
         break;
       case IrOpcode::kDeoptimize:
       case IrOpcode::kTerminate:
       case IrOpcode::kThrow:
         NodeProperties::MergeControlToEnd(graph(), common(), input);
         Revisit(graph()->end());
         break;
       default:
@@ skipping 493 matching lines @@
 
 CommonOperatorBuilder* JSInliner::common() const { return jsgraph()->common(); }
 
 SimplifiedOperatorBuilder* JSInliner::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8