diff --git a/test/Sema/builtins.c b/test/Sema/builtins.c
index a23273740c..7b2f2afbd9 100644
--- a/test/Sema/builtins.c
+++ b/test/Sema/builtins.c
@@ -25,10 +25,11 @@ int test6(float a, long double b) {
 
 #define CFSTR __builtin___CFStringMakeConstantString
 void test7() {
-  CFSTR("\242");
-  CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }}
-  CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}}
-  CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}}
+  const void *X;
+  X = CFSTR("\242");
+  X = CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }}
+  X = CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}}
+  X = CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}}
 }
 
 
diff --git a/test/Sema/unused-expr.c b/test/Sema/unused-expr.c
index 30f6aee26b..f5c64e6715 100644
--- a/test/Sema/unused-expr.c
+++ b/test/Sema/unused-expr.c
@@ -91,6 +91,7 @@ int t6() {
   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}}
+  __builtin_fabsf(0); // expected-warning {{ignoring return value of function declared with const attribute}}
   return 0;
 }