[Sema] Add -Wno-self-assign-overloaded
Summary:
It seems there isn't much enthusiasm for `-wtest` D45685.
This is more conservative version, which i had in the very first
revision of D44883, but that 'erroneously' got removed because of the review.
**Based on some [irc] discussions, it must really be documented that
we want all the new diagnostics to have their own flags, to ease
rollouts, transitions, etc.**
Please do note that i'm only adding `-Wno-self-assign-overloaded`,
but not `-Wno-self-assign-field-overloaded`, because i'm honestly
not aware of any false-positives from the `-field` variant,
but i can just as easily add it if wanted.
https://reviews.llvm.org/D44883#1068561
Reviewers: dblaikie, aaron.ballman, thakis, rjmccall, rsmith
Reviewed By: dblaikie
Subscribers: Quuxplusone, chandlerc, cfe-commits
Differential Revision: https://reviews.llvm.org/D45766
llvm-svn: 330651
diff --git a/clang/test/SemaCXX/warn-self-assign-overloaded-disable.cpp b/clang/test/SemaCXX/warn-self-assign-overloaded-disable.cpp
new file mode 100644
index 0000000..703fcc4
--- /dev/null
+++ b/clang/test/SemaCXX/warn-self-assign-overloaded-disable.cpp
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -Wall -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wself-assign -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wself-assign-overloaded -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wall -Wno-self-assign-overloaded -DSILENCE -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wself-assign -Wno-self-assign-overloaded -DSILENCE -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wself-assign-overloaded -Wno-self-assign-overloaded -DSILENCE -verify %s
+
+struct S {};
+
+void f() {
+ S a;
+#ifndef SILENCE
+ a = a; // expected-warning{{explicitly assigning}}
+#else
+ // expected-no-diagnostics
+ a = a;
+#endif
+}