use unused attribute for the parm

From-SVN: r49403

diff --git a/gcc/testsuite/g++.dg/ext/attrib3.C b/gcc/testsuite/g++.dg/ext/attrib3.C
index aabb8d1dcbab709963228751a9b80db9c5bf282e..40dbb0f6ba0a90732b21fccd3120ba4f0199b751 100644 (file)
--- a/gcc/testsuite/g++.dg/ext/attrib3.C
+++ b/gcc/testsuite/g++.dg/ext/attrib3.C
@@ -1,16 +1,17 @@
 // Test that attributes work in a variety of situations.
+// { dg-options -Wunused }
 // { dg-do run }
 
 #define attrib __attribute ((mode (QI)))
+#define attrib2 __attribute ((unused))
 
 attrib signed int a;           // attributes before type are broken
-attrib unsigned int b;
+static attrib unsigned int b;
 
-int foo(attrib int o)          // attribute arguments are broken
+int foo(attrib2 int o)         // attribute arguments are broken
 {
   return (sizeof (a) != 1
          || sizeof (b) != 1
-         || sizeof (o) != 1
          || sizeof ((attrib signed int) b) != 1);
 }