| // RUN: %clang_cc1 -mprefer-vector-width=128 -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK128 | 
 | // RUN: %clang_cc1 -mprefer-vector-width=256 -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK256 | 
 | // RUN: %clang_cc1 -mprefer-vector-width=none -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECKNONE | 
 |  | 
 | int baz(int a) { return 4; } | 
 |  | 
 | // CHECK128: baz{{.*}} #0 | 
 | // CHECK128: #0 = {{.*}}"prefer-vector-width"="128" | 
 |  | 
 | // CHECK256: baz{{.*}} #0 | 
 | // CHECK256: #0 = {{.*}}"prefer-vector-width"="256" | 
 |  | 
 | // CHECKNONE: baz{{.*}} #0 | 
 | // CHECKNONE-NOT: #0 = {{.*}}"prefer-vector-width"="none" |