Speed up raw_ostream::<<(unsigned long long) for 32-bit systems by doing most
div/mods in 32-bits.

llvm-svn: 79375

Fix a bug in raw_ostream::write(char) introduced by the change to
allow underlying stream classes to decline buffering. After
calling SetBuffered(), re-check whether the stream is Unbuffered
in order

Fix a bug in raw_ostream::write(char) introduced by the change to
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

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Revert r78924, disabling buffering defeats all the fast paths in raw_ostream.

llvm-svn: 79361

Mingw also doesn't have st_blksize.

llvm-svn: 79142

Always check to see if raw_fd_ostream's file descriptor is attached to
a terminal, not just when it's STDOUT_FILENO.

llvm-svn: 79066

When standard output is a terminal, set outs() to be unbuffered, to
mimic the behavior of stdtout, which is line-buffered when the output
is a terminal. This fixes some issues with bugpoint output ap

When standard output is a terminal, set outs() to be unbuffered, to
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

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Fix a compiler warning about comparing signed with unsigned.

llvm-svn: 78933

Add an assert to check copy_to_buffer's precondition.

llvm-svn: 78926

Set raw_os_ostream, raw_string_ostream, and raw_svector_ostream to be
unbuffered. std::ostream does its own buffering, and std::string and
SmallVector both have allocation strategies intended to hand

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

llvm-svn: 78924

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Add support to raw_ostream for sizing the buffer according to the
needs of the underlying output mechanism. raw_fd_ostream now uses
st_blksize from fstat to determine a buffer size.

llvm-svn: 78923

Move SetBufferSize and SetUnbuffered out of line.

llvm-svn: 78909

Fix the buffer handling logic so that write_impl is always called with
a full buffer, rather than often being called with a
slightly-less-than-full buffer.

llvm-svn: 78907

Add raw_ostream::write_hex

llvm-svn: 77614

Perform simplification noticed by Reid.

llvm-svn: 77477

raw_ostream: Follow the 32-bit path when printing "small" decimal numbers.

llvm-svn: 77444

Make raw_null_ostream flush its buffer in its destructor, so that
it conforms to the assertion added in r77245. This fixes a failure
in qa_override.c in clang's testsuite.

llvm-svn: 77255

Add an assertion check to raw_ostream's destructor to verify
that the subclass hasn't left any pending data in the buffer.

llvm-svn: 77245

Add raw_null_ostream and llvm::nulls(), a raw_ostream that discards output.
- No functionality change.

llvm-svn: 76103

Use size_t.

llvm-svn: 76069

Change raw_ostream so that it doesn't call llvm_report_error
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 qu

Change raw_ostream so that it doesn't call llvm_report_error
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

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Add a Force option to raw_fd_ostream to specify whether opening
an existing file is considered an error. Convert several tools
to use raw_fd_ostream instead of std::ostream, and to use this
new optio

Add a Force option to raw_fd_ostream to specify whether opening
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

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Check for errors on close(2) too. And lseek(2).

llvm-svn: 75793

Use 0664 instead of 0644 for the default open mode. This is
consistent with common std::ostream implmentations, and it gives
the user the option of using the umask group write bit.

llvm-svn: 75792

Detect write failures on raw_fd_ostream.

llvm-svn: 75758

Have asm printers use formatted_raw_ostream directly to avoid a
dynamic_cast<>.

llvm-svn: 75670