Don't emit unused warning for deleted functions. Fixes rdar://8365684 & http://llvm.org/PR9391.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126950 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 0c39e13..bc398f4 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -451,6 +451,8 @@
const FunctionDecl *DiagD;
if (!FD->hasBody(DiagD))
DiagD = FD;
+ if (DiagD->isDeleted())
+ continue; // Deleted functions are supposed to be unused.
Diag(DiagD->getLocation(),
isa<CXXMethodDecl>(DiagD) ? diag::warn_unused_member_function
: diag::warn_unused_function)
diff --git a/test/SemaCXX/unused-functions.cpp b/test/SemaCXX/unused-functions.cpp
index cefa9e1..f164bf2 100644
--- a/test/SemaCXX/unused-functions.cpp
+++ b/test/SemaCXX/unused-functions.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -Wunused -verify %s
+// RUN: %clang_cc1 -std=c++0x -fsyntax-only -Wunused -verify %s
static int foo(int x) { return x; }
@@ -6,3 +6,5 @@
T get_from_foo(T y) { return foo(y); }
int g(int z) { return get_from_foo(z); }
+
+namespace { void f() = delete; }