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* Make LLVM command-line tools overwrite their output files without -f.Dan Gohman2009-08-251-1/+1
| | | | | | | | | | | | | | | | | 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
* Change raw_fd_ostream to take flags as an optional bitmask Chris Lattner2009-08-231-2/+2
| | | | | | | | | | | | | | | | | | | instead of as two bools. Use this to add a F_Append flag which has the obvious behavior. Other unrelated changes conflated into this patch: 1. REmove EH stuff from llvm-dis and llvm-as, the try blocks are dead. 2. Simplify the filename inference code in llvm-as/llvm-dis, because raw_fd_ostream does the right thing with '-'. 3. Switch machine verifier to use raw_ostream instead of ostream (Which is the thing that needed append in the first place). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79807 91177308-0d34-0410-b5e6-96231b3b80d8
* Add FileUpdate tool, conditionally updates its output based on its input.Daniel Dunbar2009-08-031-0/+86
- Gratuitous and unused, but possibly useful one day. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77954 91177308-0d34-0410-b5e6-96231b3b80d8