diff --git a/clang/lib/Analysis/PathDiagnostic.cpp b/clang/lib/Analysis/PathDiagnostic.cpp
--- a/clang/lib/Analysis/PathDiagnostic.cpp
+++ b/clang/lib/Analysis/PathDiagnostic.cpp
@@ -1134,7 +1134,6 @@
 void PathDiagnostic::Profile(llvm::FoldingSetNodeID &ID) const {
   ID.Add(getLocation());
   ID.Add(getUniqueingLoc());
-  ID.AddPointer(getUniqueingLoc().isValid() ? getUniqueingDecl() : nullptr);
   ID.AddString(BugType);
   ID.AddString(VerboseDesc);
   ID.AddString(Category);
diff --git a/clang/test/Analysis/report-uniqueing.cpp b/clang/test/Analysis/report-uniqueing.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/Analysis/report-uniqueing.cpp
@@ -0,0 +1,16 @@
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=security
+
+void bzero(void *, unsigned long);
+
+template <typename T> void foo(T l) {
+  // The warning comes from multiple instances and with
+  // different declarations that have same source location.
+  // One instance should be shown.
+  bzero(l, 1); // expected-warning{{The bzero() function is obsoleted}}
+}
+
+void p(int *p, unsigned *q) {
+  foo(p);
+  foo(q);
+}