warn when attribute warn_unused_result is applied to void functions.
while at it, remove an outdated FIXME
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91946 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/unused-expr.c b/test/Sema/unused-expr.c
index 284818d..30f6aee 100644
--- a/test/Sema/unused-expr.c
+++ b/test/Sema/unused-expr.c
@@ -87,17 +87,19 @@
int t6() {
if (fn1() < 0 || fn2(2,1) < 0 || fn3(2) < 0) // no warnings
return -1;
-
+
fn1(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
fn2(92, 21); // expected-warning {{ignoring return value of function declared with pure attribute}}
fn3(42); // expected-warning {{ignoring return value of function declared with const attribute}}
return 0;
}
-int t7 __attribute__ ((warn_unused_result)); // expected-warning {{warning: 'warn_unused_result' attribute only applies to function types}}
+int t7 __attribute__ ((warn_unused_result)); // expected-warning {{'warn_unused_result' attribute only applies to function types}}
// PR4010
int (*fn4)(void) __attribute__ ((warn_unused_result));
void t8() {
fn4(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
}
+
+void t9() __attribute__((warn_unused_result)); // expected-warning {{attribute 'warn_unused_result' cannot be applied to functions without return value}}