Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 0 insertions, 143 deletions

diff --git a/docs/CommandGuide/opt.pod b/docs/CommandGuide/opt.pod
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-=pod
-
-=head1 NAME
-
-opt - LLVM optimizer
-
-=head1 SYNOPSIS
-
-B<opt> [I<options>] [I<filename>]
-
-=head1 DESCRIPTION
-
-The B<opt> command is the modular LLVM optimizer and analyzer.  It takes LLVM 
-source files as input, runs the specified optimizations or analyses on it, and then
-outputs the optimized file or the analysis results.  The function of 
-B<opt> depends on whether the B<-analyze> option is given. 
-
-When B<-analyze> is specified, B<opt> performs various analyses of the input
-source.  It will usually print the results on standard output, but in a few
-cases, it will print output to standard error or generate a file with the
-analysis output, which is usually done when the output is meant for another
-program.
-
-While B<-analyze> is I<not> given, B<opt> attempts to produce an optimized 
-output file.  The optimizations available via B<opt> depend upon what 
-libraries were linked into it as well as any additional libraries that have 
-been loaded with the B<-load> option.  Use the B<-help> option to determine 
-what optimizations you can use.
-
-If I<filename> is omitted from the command line or is I<->, B<opt> reads its
-input from standard input. Inputs can be in either the LLVM assembly language
-format (.ll) or the LLVM bitcode format (.bc).
-
-If an output filename is not specified with the B<-o> option, B<opt>
-writes its output to the standard output.
-
-=head1 OPTIONS
-
-=over
-
-=item B<-f>
-
-Enable binary output on terminals.  Normally, B<opt> will refuse to
-write raw bitcode output if the output stream is a terminal. With this option,
-B<opt> will write raw bitcode regardless of the output device.
-
-=item B<-help>
-
-Print a summary of command line options. 
-
-=item B<-o> I<filename>
-
-Specify the output filename.
-
-=item B<-S>
-
-Write output in LLVM intermediate language (instead of bitcode).
-
-=item B<-{passname}>
-
-B<opt> provides the ability to run any of LLVM's optimization or analysis passes
-in any order. The B<-help> option lists all the passes available. The order in
-which the options occur on the command line are the order in which they are
-executed (within pass constraints). 
-
-=item B<-std-compile-opts>
-
-This is short hand for a standard list of I<compile time optimization> passes.
-This is typically used to optimize the output from the llvm-gcc front end. It
-might be useful for other front end compilers as well. To discover the full set
-of options available, use the following command:
-
-   llvm-as < /dev/null | opt -std-compile-opts -disable-output -debug-pass=Arguments
-
-=item B<-disable-inlining>
-
-This option is only meaningful when B<-std-compile-opts> is given. It simply
-removes the inlining pass from the standard list.
-
-=item B<-disable-opt>
-
-This option is only meaningful when B<-std-compile-opts> is given. It disables
-most, but not all, of the B<-std-compile-opts>. The ones that remain are
-B<-verify>, B<-lower-setjmp>, and B<-funcresolve>.
-
-=item B<-strip-debug>
-
-This option causes opt to strip debug information from the module before 
-applying other optimizations. It is essentially the same as B<-strip> but it
-ensures that stripping of debug information is done first.
-
-=item B<-verify-each>
-
-This option causes opt to add a verify pass after every pass otherwise specified
-on the command line (including B<-verify>).  This is useful for cases where it 
-is suspected that a pass is creating an invalid module but it is not clear which
-pass is doing it. The combination of B<-std-compile-opts> and B<-verify-each>
-can quickly track down this kind of problem.
-
-=item B<-profile-info-file> I<filename>
-
-Specify the name of the file loaded by the -profile-loader option.
-
-=item B<-stats>
-
-Print statistics.
-
-=item B<-time-passes>
-
-Record the amount of time needed for each pass and print it to standard
-error.
-
-=item B<-debug>
-
-If this is a debug build, this option will enable debug printouts
-from passes which use the I<DEBUG()> macro.  See the B<LLVM Programmer's
-Manual>, section I<#DEBUG> for more information.
-
-=item B<-load>=I<plugin>
-
-Load the dynamic object I<plugin>.  This object should register new optimization
-or analysis passes. Once loaded, the object will add new command line options to
-enable various optimizations or analyses.  To see the new complete list of 
-optimizations, use the B<-help> and B<-load> options together. For example:
-
-   opt -load=plugin.so -help
-
-=item B<-p>
-
-Print module after each transformation.
-
-=back
-
-=head1 EXIT STATUS
-
-If B<opt> succeeds, it will exit with 0.  Otherwise, if an error
-occurs, it will exit with a non-zero value.
-
-=head1 AUTHORS
-
-Maintained by the LLVM Team (L<http://llvm.org/>).
-
-=cut