|  | // Note: we have to quote the /? option, otherwise some shells will try to | 
|  | // expand the ? into a one-letter filename in the root directory, and make | 
|  | // the test fail is such a file or directory exists. | 
|  |  | 
|  | // Note: %s must be preceded by --, otherwise it may be interpreted as a | 
|  | // command-line option, e.g. on Mac where %s is commonly under /Users. | 
|  |  | 
|  | // Check that clang-cl options are not available by default. | 
|  | // RUN: %clang -help | FileCheck %s -check-prefix=DEFAULT | 
|  | // DEFAULT-NOT: CL.EXE COMPATIBILITY OPTIONS | 
|  | // DEFAULT-NOT: {{/[?]}} | 
|  | // DEFAULT-NOT: /help | 
|  | // RUN: not %clang "/?" | 
|  | // RUN: not %clang -? | 
|  | // RUN: not %clang /help | 
|  |  | 
|  | // Check that /? and /help are available as clang-cl options. | 
|  | // RUN: %clang_cl "/?" | FileCheck %s -check-prefix=CL | 
|  | // RUN: %clang_cl /help | FileCheck %s -check-prefix=CL | 
|  | // RUN: %clang_cl -help | FileCheck %s -check-prefix=CL | 
|  | // CL: CL.EXE COMPATIBILITY OPTIONS | 
|  | // CL: {{/[?]}} | 
|  | // CL: /help | 
|  |  | 
|  | // Options which are not "core" clang options nor cl.exe compatible options | 
|  | // are not available in clang-cl. | 
|  | // DEFAULT: -fapple-kext | 
|  | // CL-NOT: -fapple-kext | 
|  |  | 
|  | // RUN: %clang_cl /c -### -- %s 2>&1 | FileCheck -check-prefix=COMPILE %s | 
|  | // COMPILE: "-fdiagnostics-format" "msvc" |