Disable -Wunique-enum for anonymous enums.

This is a large class of false positives where anonymous enums are used to
declare constants (see Clang's Diagnostics.h for example). A small number of
true positives could probably be found in this bucket by still warning if the
anonymous enum is used in a declarator (enum { ... } x;) but so far we don't
believe this to be a source of significant benefit so I haven't bothered to
preserve those cases.

General offline review/acknowledgment by rtrieu.

llvm-svn: 157713

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/test/SemaCXX/warn-unique-enum.cpp b/clang/test/SemaCXX/warn-unique-enum.cpp
index ddafc16aab5..7d04b1dc2dd 100644
--- a/clang/test/SemaCXX/warn-unique-enum.cpp
+++ b/clang/test/SemaCXX/warn-unique-enum.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 %s -fsyntax-only -verify -Wunique-enum
 enum A { A1 = 1, A2 = 1, A3 = 1 };  // expected-warning {{all elements of 'A' are initialized with literals to value 1}}
-enum { B1 = 1, B2 = 1, B3 = 1 };  // expected-warning {{all elements of anonymous enum are initialized with literals to value 1}}
+enum { B1 = 1, B2 = 1, B3 = 1 }; // no warning
 enum C { C1 = true, C2 = true}; // expected-warning {{all elements of 'C' are initialized with literals to value 1}}
 enum D { D1 = 5, D2 = 5L, D3 = 5UL, D4 = 5LL, D5 = 5ULL };  // expected-warning {{all elements of 'D' are initialized with literals to value 5}}