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

test/unittests/compiler/int64-lowering-unittest.cc

Index: test/unittests/compiler/int64-lowering-unittest.cc
diff --git a/test/unittests/compiler/int64-lowering-unittest.cc b/test/unittests/compiler/int64-lowering-unittest.cc
index fb6c76b1ea1814e3949bb79a8fd92757ba2b6c1a..400eafb4dc69c24ac33754c9c78f2c4b7b419b13 100644
--- a/test/unittests/compiler/int64-lowering-unittest.cc
+++ b/test/unittests/compiler/int64-lowering-unittest.cc
@@ -40,8 +40,9 @@ class Int64LoweringTest : public GraphTest {
   MachineOperatorBuilder* machine() { return &machine_; }
 
   void LowerGraph(Node* node, Signature<MachineRepresentation>* signature) {
-    Node* ret = graph()->NewNode(common()->Return(), node, graph()->start(),
-                                 graph()->start());
+    Node* zero = graph()->NewNode(common()->Int32Constant(0));
+    Node* ret = graph()->NewNode(common()->Return(), zero, node,
+                                 graph()->start(), graph()->start());
     NodeProperties::MergeControlToEnd(graph(), common(), ret);
 
     Int64Lowering lowering(graph(), machine(), common(), zone(), signature);
@@ -216,7 +217,8 @@ TEST_F(Int64LoweringTest, UnalignedInt64Load) {
                                  Int32Constant(base), Int32Constant(index),  \
                                  Int64Constant(value(0)), start(), start()); \
                                                                              \
-  Node* ret = graph()->NewNode(common()->Return(),                           \
+  Node* zero = graph()->NewNode(common()->Int32Constant(0));                 \
+  Node* ret = graph()->NewNode(common()->Return(), zero,                     \
                                Int32Constant(return_value), store, start()); \
                                                                              \
   NodeProperties::MergeControlToEnd(graph(), common(), ret);                 \
@@ -313,7 +315,7 @@ TEST_F(Int64LoweringTest, CallI64Return) {
 
   CompareCallDescriptors(
       OpParameter<const CallDescriptor*>(
-          graph()->end()->InputAt(1)->InputAt(0)->InputAt(0)),
+          graph()->end()->InputAt(1)->InputAt(1)->InputAt(0)),
       wasm::ModuleEnv::GetI32WasmCallDescriptor(zone(), desc));
 }
 
@@ -347,7 +349,7 @@ TEST_F(Int64LoweringTest, CallI64Parameter) {
 
   CompareCallDescriptors(
       OpParameter<const CallDescriptor*>(
-          graph()->end()->InputAt(1)->InputAt(0)),
+          graph()->end()->InputAt(1)->InputAt(1)),
       wasm::ModuleEnv::GetI32WasmCallDescriptor(zone(), desc));
 }