[interpreter][stubs] Fixing issues found by machine graph verifier.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index e8ffeecf4c7c915c599b53c49830bcc66deaf691..ec52e79c69e8e3b8dd2649e8bfe5183dbb5efc56 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -1777,6 +1777,21 @@ bool PipelineImpl::ScheduleAndSelectInstructions(Linkage* linkage,
                             (!strcmp(FLAG_turbo_verify_machine_graph, "*") ||
                              !strcmp(FLAG_turbo_verify_machine_graph,
                                      data->info()->GetDebugName().get())))) {
+    if (FLAG_trace_csa_verify) {
+      AllowHandleDereference allow_deref;
+      CompilationInfo* info = data->info();
+      CodeTracer::Scope tracing_scope(info->isolate()->GetCodeTracer());
+      OFStream os(tracing_scope.file());
+      os << "--------------------------------------------------\n"
+         << "--- Verifying " << info->GetDebugName().get()
+         << " generated by TurboFan\n"
+         << "--------------------------------------------------\n"
+         << *data->schedule()
+         << "--------------------------------------------------\n"
+         << "--- End of " << info->GetDebugName().get()
+         << " generated by TurboFan\n"
+         << "--------------------------------------------------\n";
+    }
     Zone temp_zone(data->isolate()->allocator(), ZONE_NAME);
     MachineGraphVerifier::Run(data->graph(), data->schedule(), linkage,
                               data->info()->IsStub(), &temp_zone);