llvm-6502/docs/main/CommandGuide/llvm-as.pod
mike-m 68cb31901c Overhauled llvm/clang docs builds. Closes PR6613.
NOTE: 2nd part changeset for cfe trunk to follow.

*** PRE-PATCH ISSUES ADDRESSED

- clang api docs fail build from objdir
- clang/llvm api docs collide in install PREFIX/
- clang/llvm main docs collide in install
- clang/llvm main docs have full of hard coded destination
  assumptions and make use of absolute root in static html files;
  namely CommandGuide tools hard codes a website destination
  for cross references and some html cross references assume
  website root paths

*** IMPROVEMENTS

- bumped Doxygen from 1.4.x -> 1.6.3
- splits llvm/clang docs into 'main' and 'api' (doxygen) build trees
- provide consistent, reliable doc builds for both main+api docs
- support buid vs. install vs. website intentions
- support objdir builds
- document targets with 'make help'
- correct clean and uninstall operations
- use recursive dir delete only where absolutely necessary
- added call function fn.RMRF which safeguards against botched 'rm -rf';
  if any target (or any variable is evaluated) which attempts
  to remove any dirs which match a hard-coded 'safelist', a verbose
  error will be printed and make will error-stop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103213 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 23:45:43 +00:00

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=pod
=head1 NAME
llvm-as - LLVM assembler
=head1 SYNOPSIS
B<llvm-as> [I<options>] [I<filename>]
=head1 DESCRIPTION
B<llvm-as> is the LLVM assembler. It reads a file containing human-readable
LLVM assembly language, translates it to LLVM bitcode, and writes the result
into a file or to standard output.
If F<filename> is omitted or is C<->, then B<llvm-as> reads its input from
standard input.
If an output file is not specified with the B<-o> option, then
B<llvm-as> sends its output to a file or standard output by following
these rules:
=over
=item *
If the input is standard input, then the output is standard output.
=item *
If the input is a file that ends with C<.ll>, then the output file is of
the same name, except that the suffix is changed to C<.bc>.
=item *
If the input is a file that does not end with the C<.ll> suffix, then the
output file has the same name as the input file, except that the C<.bc>
suffix is appended.
=back
=head1 OPTIONS
=over
=item B<-f>
Enable binary output on terminals. Normally, B<llvm-as> will refuse to
write raw bitcode output if the output stream is a terminal. With this option,
B<llvm-as> will write raw bitcode regardless of the output device.
=item B<-help>
Print a summary of command line options.
=item B<-o> F<filename>
Specify the output file name. If F<filename> is C<->, then B<llvm-as>
sends its output to standard output.
=back
=head1 EXIT STATUS
If B<llvm-as> succeeds, it will exit with 0. Otherwise, if an error
occurs, it will exit with a non-zero value.
=head1 SEE ALSO
L<llvm-dis|llvm-dis>, L<gccas|gccas>
=head1 AUTHORS
Maintained by the LLVM Team (L<http://llvm.org>).
=cut