Detect missing inliner

runtime/vm/object.cc

Index: runtime/vm/object.cc
diff --git a/runtime/vm/object.cc b/runtime/vm/object.cc
index fa292e3b09c57d9edf6273c2442b4f240a2573bb..8daa9d8a7197df3adde71c24a1adfedb1ed7385a 100644
--- a/runtime/vm/object.cc
+++ b/runtime/vm/object.cc
@@ -13294,28 +13294,46 @@ void Code::GetInlinedFunctionsAt(
 
 
 void Code::DumpInlinedIntervals() const {
-  OS::Print("Inlined intervals:\n");
+  LogBlock lb(Isolate::Current());
+  ISL_Print("Inlined intervals:\n");
   const Array& intervals = Array::Handle(GetInlinedIntervals());
   if (intervals.IsNull() || (intervals.Length() == 0)) return;
   Smi& start = Smi::Handle();
   Smi& inlining_id = Smi::Handle();
   Smi& caller_id = Smi::Handle();
+  GrowableArray<Function*> inlined_functions;
+  const Function& inliner = Function::Handle(function());
   for (intptr_t i = 0; i < intervals.Length(); i += Code::kInlIntNumEntries) {
     start ^= intervals.At(i + Code::kInlIntStart);
     ASSERT(!start.IsNull());
     if (start.IsNull()) continue;
     inlining_id ^= intervals.At(i + Code::kInlIntInliningId);
     caller_id ^= intervals.At(i + Code::kInlIntCallerId);
-    OS::Print("  %" Px " id: %" Pd " caller-id: %" Pd " \n",
+    ISL_Print("  %" Px " id: %" Pd " caller-id: %" Pd " \n",
         start.Value(), inlining_id.Value(), caller_id.Value());
+    inlined_functions.Clear();
+    ISL_Print("Inlined functions at: %" Px "\n", start.Value());
+    GetInlinedFunctionsAt(start.Value(), &inlined_functions);
+    for (intptr_t j = 0; j < inlined_functions.length(); j++) {
+      Function* function = inlined_functions[j];
+      if (j == inlined_functions.length() - 1) {
+        if (function->raw() != inliner.raw()) {
+          ISL_Print("!!! INLINER: %s\n", inliner.ToCString());
+          Isolate::Current()->Log()->Flush();
+        }
+        ASSERT(function->raw() == inliner.raw());
+      }
+      ISL_Print("%" Pd ": %s\n", j, function->ToCString());
+    }
+    ISL_Print("INLINER: %s\n", inliner.ToCString());
   }
-  OS::Print("Inlined ids:\n");
+  ISL_Print("Inlined ids:\n");
   const Array& id_map = Array::Handle(GetInlinedIdToFunction());
   Function& function = Function::Handle();
   for (intptr_t i = 0; i < id_map.Length(); i++) {
     function ^= id_map.At(i);
     if (!function.IsNull()) {
-      OS::Print("  %" Pd ": %s\n", i, function.ToQualifiedCString());
+      ISL_Print("  %" Pd ": %s\n", i, function.ToQualifiedCString());
     }
   }
 }