|  | // RUN: %clang_cc1 -O2 -emit-llvm -fms-extensions -o - %s | FileCheck %s | 
|  |  | 
|  | #pragma optimize("", off) | 
|  |  | 
|  | // CHECK: define{{.*}} void @f0(){{.*}} #[[OPTNONE:[0-9]+]] | 
|  | void f0() {} | 
|  |  | 
|  | // CHECK: define{{.*}} void @f1(){{.*}} #[[OPTNONE]] | 
|  | void f1() {} | 
|  |  | 
|  | #pragma optimize("", on) | 
|  |  | 
|  | // CHECK: define{{.*}} void @f2(){{.*}} #[[NO_OPTNONE:[0-9]+]] | 
|  | void f2() {} | 
|  |  | 
|  | // CHECK: define{{.*}} void @f3(){{.*}} #[[NO_OPTNONE]] | 
|  | void f3() {} | 
|  |  | 
|  | // CHECK:         attributes #[[OPTNONE]] = {{{.*}}optnone{{.*}}} | 
|  | // CHECK-NOT:     attributes #[[NO_OPTNONE]] = {{{.*}}optnone{{.*}}} |