| /// For -fprofile-instr-generate and -fprofile-arcs, increment counters atomically |
| /// if -fprofile-update={atomic,prefer-atomic} or -fsanitize=thread is specified. |
| // RUN: %clang -### %s -c -target x86_64-linux -fsanitize=thread %s 2>&1 | FileCheck %s |
| // RUN: %clang -### %s -c -fprofile-update=atomic 2>&1 | FileCheck %s |
| // RUN: %clang -### %s -c -fprofile-update=prefer-atomic 2>&1 | FileCheck %s |
| |
| // CHECK: "-fprofile-update=atomic" |
| |
| // RUN: %clang -### %s -c -fprofile-update=atomic -fprofile-update=single 2>&1 | FileCheck %s --check-prefix=SINGLE |
| |
| // SINGLE-NOT: "-fprofile-update=atomic" |
| |
| // RUN: not %clang %s -c -fprofile-update=unknown 2>&1 | FileCheck %s --check-prefix=ERROR |
| |
| // ERROR: error: unsupported argument 'unknown' to option 'fprofile-update=' |
