llvm-svn: 84355

 - As best I can tell, we have eliminated all the code which used to require a
   larger buffer size.

llvm-svn: 81912

working. To support this, add an is_displayed() function to raw_ostream,
and generalize Process::StandardOutIsDisplayed and friends in order to
support it.

Also, call RemoveFileOnSignal before creating a file instead of after, so
that the file isn't left behind if the program is interrupted between when
the file is created and RemoveFileOnSignal is called.

While here, add a -S to llvm-extract and port it to IRReader so that it
supports assembly input.

llvm-svn: 81568

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

llvm-svn: 79894

than 16 spaces. Make the Spaces array wide enough to handle common cases.

llvm-svn: 79890

means that raw_ostream no longer has to #include <iosfwd>.  Nothing in llvm
should use raw_os_ostream.h, but llvm-gcc and some unit tests do.

llvm-svn: 79886

member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.

llvm-svn: 79885

 - This also shortens the Format.h implementation, and uses the print buffer
   fully (it was wasting a character).

 - This manifested as llvm-test failures, because one side effect was that
   raw_ostream would write garbage '\x00' values into the output stream if it
   happened that the string was at the end of the buffer. This meant that grep
   would report 'Binary file matches', which meant the silly pattern matching
   llvm-test eventually does would fail. Cute. :)

llvm-svn: 79862

llvm-svn: 79845

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).

llvm-svn: 79807

  OS.indent(i) << "whatever";

people seem to like indenting things ;-)

llvm-svn: 79784

right.
 - This class turns out to be much more convenient to use if we do this; clients
   can make sure the buffer is always big enough if they care (since our current
   idiom tends to be to use a SmallString<256> for the input to this we should
   generally be avoiding an unnecessary malloc).

Also, add a convenience raw_svector_ostream::str method which flushes the buffer
and returns a StringRef for the vector contents.

llvm-svn: 79446

 - This avoids unnecessary malloc/free overhead in the common case, and
   unnecessary copying from the ostream buffer into the output vector.

llvm-svn: 79434

rather obscure way (the other candidate is r79377).

llvm-svn: 79426

llvm-svn: 79386

 - The base class implementation is correct.

llvm-svn: 79385

buffer.

llvm-svn: 79382

div/mods in 32-bits.

llvm-svn: 79375

allow underlying stream classes to decline buffering. After
calling SetBuffered(), re-check whether the stream is Unbuffered
in order to handle the case where the underlying stream has
declined buffering.

llvm-svn: 79362

llvm-svn: 79361

llvm-svn: 79142

a terminal, not just when it's STDOUT_FILENO.

llvm-svn: 79066

mimic the behavior of stdtout, which is line-buffered when the output
is a terminal. This fixes some issues with bugpoint output appearing
being printed out of order.

llvm-svn: 78953

llvm-svn: 78933

llvm-svn: 78926

unbuffered. std::ostream does its own buffering, and std::string and
SmallVector both have allocation strategies intended to handle frequent
appending.

llvm-svn: 78924

needs of the underlying output mechanism. raw_fd_ostream now uses
st_blksize from fstat to determine a buffer size.

llvm-svn: 78923

llvm-svn: 78909

a full buffer, rather than often being called with a
slightly-less-than-full buffer.

llvm-svn: 78907

llvm-svn: 77614

llvm-svn: 77477

llvm-svn: 77444

it conforms to the assertion added in r77245. This fixes a failure
in qa_override.c in clang's testsuite.

llvm-svn: 77255

that the subclass hasn't left any pending data in the buffer.

llvm-svn: 77245

 - No functionality change.

llvm-svn: 76103

llvm-svn: 76069

immediately on every output error. Instead, add a flag to
raw_ostream, and set the flag whenever an error is detected.

The flag can be queried and cleared from the public API. This
gives applications more flexibility to handling errors in
application-specific ways.

If the flag is not cleared when the raw_ostream is destructed,
llvm_report_error is called from the destructor. This ensures
that errors are not implicitly silenced, and provides
convenient default behavior for tools like llc and opt.
Clients wishing to avoid llvm_report_error calls from
raw_ostream should check for errors and clear the error flag.

llvm-svn: 75857

an existing file is considered an error. Convert several tools
to use raw_fd_ostream instead of std::ostream, and to use this
new option instead of doing a manual check.

llvm-svn: 75801

llvm-svn: 75793