Make LLVM command-line tools overwrite their output files without -f.

This is conventional command-line tool behavior. -f now just means
"enable binary output on terminals".

Add a -f option to llvm-extract and llvm-link, for consistency.

Remove F_Force from raw_fd_ostream and enable overwriting and
truncating by default. Introduce an F_Excl flag to permit users to
enable a failure when the file already exists. This flag is
currently unused.

Update Makefiles and documentation accordingly.

llvm-svn: 79990

1 files changed, 1 insertions, 4 deletions

diff --git a/llvm/tools/llvm-dis/llvm-dis.cpp b/llvm/tools/llvm-dis/llvm-dis.cpp
index 2066fffd290..89073c08843 100644
--- a/llvm/tools/llvm-dis/llvm-dis.cpp
+++ b/llvm/tools/llvm-dis/llvm-dis.cpp
@@ -38,7 +38,7 @@ OutputFilename("o", cl::desc("Override output filename"),
                cl::value_desc("filename"));
 
 static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
 
 static cl::opt<bool>
 DontPrint("disable-output", cl::desc("Don't output the .ll file"), cl::Hidden);
@@ -93,12 +93,9 @@ int main(int argc, char **argv) {
   std::string ErrorInfo;
   std::auto_ptr<raw_fd_ostream> 
   Out(new raw_fd_ostream(OutputFilename.c_str(), ErrorInfo,
-                         (Force?raw_fd_ostream::F_Force : 0) |
                          raw_fd_ostream::F_Binary));
   if (!ErrorInfo.empty()) {
     errs() << ErrorInfo << '\n';
-    if (!Force)
-      errs() << "Use -f command line argument to force output\n";
     return 1;
   }