Index: ipa.c
===================================================================
--- ipa.c	(revision 189217)
+++ ipa.c	(working copy)
@@ -449,11 +449,6 @@ symtab_remove_unreachable_nodes (bool before_inlin
   verify_symtab ();
 #endif
 
-  /* If we removed something, perhaps profile could be improved.  */
-  if (changed && optimize && inline_edge_summary_vec)
-    FOR_EACH_DEFINED_FUNCTION (node)
-      cgraph_propagate_frequency (node);
-
   return changed;
 }
 
Index: testsuite/g++.dg/torture/pr53321.C
===================================================================
--- testsuite/g++.dg/torture/pr53321.C	(revision 0)
+++ testsuite/g++.dg/torture/pr53321.C	(working copy)
@@ -0,0 +1,36 @@
+// { dg-do compile }
+// { dg-require-profiling "-fprofile-generate" }
+// { dg-options "-fprofile-generate" }
+
+typedef long unsigned int size_t;
+
+extern "C"
+{
+  extern void *memcpy (void *__dest, __const void *__src, size_t __n);
+}
+
+extern char *src, *sources;
+extern int n_sources;
+
+static void
+find_source (const char *file_name)
+{
+  memcpy (src, sources, n_sources * sizeof (*sources));
+}
+
+extern const char *gcov_read_string (void);
+
+static void read_graph_file (void)
+{
+  find_source (gcov_read_string ());
+}
+
+static void process_file (void)
+{
+  read_graph_file ();
+}
+
+int main ()
+{
+  process_file ();
+}