| // RUN: %clang_cc1 -fblocks -fsyntax-only -Wunused-parameter %s 2>&1 | FileCheck %s | 
 | // RUN: %clang_cc1 -fblocks -fsyntax-only -Wunused %s 2>&1 | FileCheck -check-prefix=CHECK-unused %s | 
 |  | 
 | int f0(int x, | 
 |        int y, | 
 |        int z __attribute__((unused))) { | 
 |   return x; | 
 | } | 
 |  | 
 | void f1() { | 
 |   (void)^(int x, | 
 |           int y, | 
 |           int z __attribute__((unused))) { return x; }; | 
 | } | 
 |  | 
 | // Used when testing '-Wunused' to see that we only emit one diagnostic, and no | 
 | // warnings for the above cases. | 
 | static void achor() {}; | 
 |  | 
 | // CHECK: 5:12: warning: unused parameter 'y' | 
 | // CHECK: 12:15: warning: unused parameter 'y' | 
 | // CHECK-unused: 1 warning generated | 
 |  | 
 | // RUN: %clang_cc1 -fblocks -fsyntax-only -Weverything %s 2>&1 | FileCheck -check-prefix=CHECK-everything %s | 
 | // RUN: not %clang_cc1 -fblocks -fsyntax-only -Weverything -Werror %s 2>&1 | FileCheck -check-prefix=CHECK-everything-error %s | 
 | // RUN: %clang_cc1 -fblocks -fsyntax-only -Weverything -Wno-unused %s 2>&1 | FileCheck -check-prefix=CHECK-everything-no-unused %s | 
 | // CHECK-everything: 6 warnings generated | 
 | // CHECK-everything-error: 5 errors generated | 
 | // CHECK-everything-no-unused: 5 warnings generated | 
 |  |