; RUN: llvm-readtapi --help 2>&1 | FileCheck %s 
; RUN: llvm-readtapi -help 2>&1 | FileCheck %s 
// Check mutually exclusive options.
; RUN: not llvm-readtapi -merge -compare -compact %t/tmp.tbd %t/tmp2.tbd 2>&1 | FileCheck %s --check-prefix MULTI_ACTION
// Check unsupported file output format.
; RUN: not llvm-readtapi -merge -compact %t/tmp.tbd %t/tmp2.tbd --filetype=tbd-v2 2>&1 | FileCheck %s --check-prefix FILE_FORMAT 
// Check version printing.
; RUN: llvm-readtapi -v 2>&1 | FileCheck %s --check-prefix VERSION
; RUN: llvm-readtapi --version 2>&1 | FileCheck %s --check-prefix VERSION

; CHECK: OVERVIEW: LLVM TAPI file reader and transformer 
; CHECK: USAGE: llvm-readtapi <command> [-arch <architecture> <options>]* <inputs> [-o <output>]*
; CHECK: COMMANDS:
; CHECK: OPTIONS:
; CHECK:   -help    display this help

; MULTI_ACTION: error: only one of the following actions can be specified: -merge -compare
; FILE_FORMAT: error: deprecated filetype 'tbd-v2' is not supported to write

; VERSION: {{ version }}