Warn on dropping the return value from a warn_unused_result function, even in
macros.
llvm-svn: 176114
diff --git a/clang/test/Sema/unused-expr.c b/clang/test/Sema/unused-expr.c
index 0786ede..ea08631 100644
--- a/clang/test/Sema/unused-expr.c
+++ b/clang/test/Sema/unused-expr.c
@@ -132,6 +132,8 @@
#define M3(a) (t3(a), fn2())
#define M4(a, b) (foo((a), (b)) ? 0 : t3(a), 1)
#define M5(a, b) (foo((a), (b)), 1)
+#define M6() fn1()
+#define M7() fn2()
void t11(int i, int j) {
M1(i, j); // no warning
NOP((long)foo(i, j)); // expected-warning {{expression result unused}}
@@ -143,6 +145,8 @@
NOP((foo(i, j) ? 0 : t3(i), 1)); // expected-warning {{expression result unused}}
M5(i, j); // no warning
NOP((foo(i, j), 1)); // expected-warning {{expression result unused}}
+ M6(); // expected-warning {{ignoring return value}}
+ M7(); // no warning
}
#undef NOP
#undef M1
@@ -150,3 +154,5 @@
#undef M3
#undef M4
#undef M5
+#undef M6
+#undef M7