1 /// For -fprofile-instr-generate and -fprofile-arcs, increment counters atomically 2 /// if -fprofile-update={atomic,prefer-atomic} or -fsanitize=thread is specified. 3 // RUN: %clang -### %s -c -target x86_64-linux -fsanitize=thread %s 2>&1 | FileCheck %s 4 // RUN: %clang -### %s -c -fprofile-update=atomic 2>&1 | FileCheck %s 5 // RUN: %clang -### %s -c -fprofile-update=prefer-atomic 2>&1 | FileCheck %s 6 7 // CHECK: "-fprofile-update=atomic" 8 9 // RUN: %clang -### %s -c -fprofile-update=atomic -fprofile-update=single 2>&1 | FileCheck %s --check-prefix=SINGLE 10 11 // SINGLE-NOT: "-fprofile-update=atomic" 12 13 // RUN: not %clang %s -c -fprofile-update=unknown 2>&1 | FileCheck %s --check-prefix=ERROR 14 15 // ERROR: error: unsupported argument 'unknown' to option 'fprofile-update=' 16