When adding ADL candidates for overloaded

post-increment/post-decrement operators, be sure to consider both
arguments. Fixes PR6237.

llvm-svn: 95361

clang/lib/Sema/SemaOverload.cpp

@@ -5528,7 +5528,7 @@ Sema::CreateOverloadedUnaryOp(SourceLocation OpLoc, unsigned OpcIn,
 
   // Add candidates from ADL.
   AddArgumentDependentLookupCandidates(OpName, /*Operator*/ true,
-                                       Args, 1,
+                                       Args, NumArgs,
                                        /*ExplicitTemplateArgs*/ 0,
                                        CandidateSet);
 

clang/test/SemaTemplate/instantiate-expr-1.cpp

@@ -87,6 +87,18 @@ void add(const T &x) {
   (void)(x + x);
 }
 
+namespace PR6237 {
+  template <typename T>
+  void f(T t) {
+    t++;
+  }
+
+  struct B { };
+  B operator++(B &, int);
+
+  template void f(B);
+}
+
 struct Addable {
   Addable operator+(const Addable&) const;
 };