1 // Check that we pass -fretain-comments-from-system-headers to frontend. 2 // 3 // RUN: %clang -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-RETAIN 4 // RUN: %clang -c %s -fretain-comments-from-system-headers -### 2>&1 | FileCheck %s --check-prefix=CHECK-RETAIN 5 // 6 // CHECK-RETAIN: -fretain-comments-from-system-headers 7 // 8 // CHECK-NO-RETAIN-NOT: -fretain-comments-from-system-headers 9 10