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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79990 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 5 deletions

diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 7753c21fa1..6effa48000 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -55,7 +55,7 @@ OutputFilename("o", cl::desc("Override output filename"),
                cl::value_desc("filename"), cl::init("-"));
 
 static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
 
 static cl::opt<bool>
 PrintEachXForm("p", cl::desc("Print module after each transformation"));
@@ -367,12 +367,9 @@ int main(int argc, char **argv) {
     if (OutputFilename != "-") {
       std::string ErrorInfo;
       Out = new raw_fd_ostream(OutputFilename.c_str(), ErrorInfo,
-                               raw_fd_ostream::F_Binary |
-                               (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";
         delete Out;
         return 1;
       }