diff --git a/runtime/entrypoints/quick/quick_alloc_entrypoints.cc b/runtime/entrypoints/quick/quick_alloc_entrypoints.cc
index c049e3d..49350ca 100644
--- a/runtime/entrypoints/quick/quick_alloc_entrypoints.cc
+++ b/runtime/entrypoints/quick/quick_alloc_entrypoints.cc
@@ -230,8 +230,13 @@
   entry_points_instrumented = instrumented;
 }
 
+#if defined(__APPLE__) && defined(__LP64__)
+void ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints ATTRIBUTE_UNUSED) {
+  UNIMPLEMENTED(FATAL);
+  UNREACHABLE();
+}
+#else
 void ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints) {
-#if !defined(__APPLE__) || !defined(__LP64__)
   switch (entry_points_allocator) {
     case gc::kAllocatorTypeDlMalloc: {
       SetQuickAllocEntryPoints_dlmalloc(qpoints, entry_points_instrumented);
@@ -261,14 +266,15 @@
       SetQuickAllocEntryPoints_region_tlab(qpoints, entry_points_instrumented);
       return;
     }
-    default:
-      break;
+
+    case gc::kAllocatorTypeLOS:
+    case gc::kAllocatorTypeNonMoving:
+      UNIMPLEMENTED(FATAL) << "Unexpected allocator type " << entry_points_allocator;
+      UNREACHABLE();
   }
-#else
-  UNUSED(qpoints);
-#endif
-  UNIMPLEMENTED(FATAL);
+  LOG(FATAL);
   UNREACHABLE();
 }
+#endif
 
 }  // namespace art
diff --git a/runtime/entrypoints/quick/quick_alloc_entrypoints.h b/runtime/entrypoints/quick/quick_alloc_entrypoints.h
index ec0aef5..a99dc8a 100644
--- a/runtime/entrypoints/quick/quick_alloc_entrypoints.h
+++ b/runtime/entrypoints/quick/quick_alloc_entrypoints.h
@@ -17,12 +17,16 @@
 #ifndef ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ALLOC_ENTRYPOINTS_H_
 #define ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ALLOC_ENTRYPOINTS_H_
 
+#include "base/macros.h"
 #include "base/mutex.h"
 #include "gc/allocator_type.h"
 #include "quick_entrypoints.h"
 
 namespace art {
 
+#if defined(__APPLE__) && defined(__LP64__)
+NO_RETURN
+#endif
 void ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints);
 
 // Runtime shutdown lock is necessary to prevent races in thread initialization. When the thread is