// Check that we can operate on files from /dev/fd.
// REQUIRES: dev-fd-fs


// Check reading from named pipes. We cat the input here instead of redirecting
// it to ensure that /dev/fd/0 is a named pipe, not just a redirected file.
//
// RUN: cat %s | %clang -x c /dev/fd/0 -E > %t
// RUN: FileCheck --check-prefix DEV-FD-INPUT < %t %s

// DEV-FD-INPUT: int x;
int x;

// Check that we can operate on files from /dev/fd.
// REQUIRES: dev-fd-fs


// Check reading from named pipes. We cat the input here instead of redirecting
// it to ensure that /dev/fd/0 is a named pipe, not just a redirected file.
//
// RUN: cat %s | %clang -x c /dev/fd/0 -E > %t
// RUN: FileCheck --check-prefix DEV-FD-INPUT < %t %s
//
// DEV-FD-INPUT: int x;


// Check writing to /dev/fd named pipes. We use cat here as before to ensure we
// get a named pipe.
//
// RUN: %clang -x c %s -E -o /dev/fd/1 | cat > %t
// RUN: FileCheck --check-prefix DEV-FD-FIFO-OUTPUT < %t %s
//
// DEV-FD-FIFO-OUTPUT: int x;


// Check writing to /dev/fd regular files.
//
// RUN: %clang -x c %s -E -o /dev/fd/1 > %t
// RUN: FileCheck --check-prefix DEV-FD-REG-OUTPUT < %t %s
//
// DEV-FD-REG-OUTPUT: int x;

int x;

Check that we can output to /dev/fd filesystem.
tests: Check that we can output to /dev/fd filesystem.

 - An LLVM unique_file() bug could cause us to infinite loop on the later test
   case.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@168082 91177308-0d34-0410-b5e6-96231b3b80d8
