forked from OSchip/llvm-project
86 lines
1.9 KiB
Plaintext
86 lines
1.9 KiB
Plaintext
=pod
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=head1 NAME
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llvm-gcc - LLVM C front-end
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=head1 SYNOPSIS
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B<llvm-gcc> [I<options>] I<filename>
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=head1 DESCRIPTION
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The B<llvm-gcc> command is the LLVM C front end. It is a modified
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version of gcc that compiles C/ObjC programs into native objects, LLVM
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bytecode or LLVM assembly language, depending upon the options.
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By default, B<llvm-gcc> compiles to native objects just like GCC does. If the
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B<-emit-llvm> option is given then it will generate LLVM bytecode files instead.
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If B<-S> (assembly) is also given, then it will generate LLVM assembly.
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Being derived from the GNU Compiler Collection, B<llvm-gcc> has many
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of gcc's features and accepts most of gcc's options. It handles a
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number of gcc's extensions to the C programming language.
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=head1 OPTIONS
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=over
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=item B<--help>
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Print a summary of command line options.
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=item B<-S>
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Do not generate an LLVM bytecode file. Rather, compile the source
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file into an LLVM assembly language file.
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=item B<-c>
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Do not generate a linked executable. Rather, compile the source
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file into an LLVM bytecode file. This bytecode file can then be
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linked with other bytecode files later on to generate a full LLVM
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executable.
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=item B<-o> I<filename>
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Specify the output file to be I<filename>.
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=item B<-I> I<directory>
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Add a directory to the header file search path. This option can be
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repeated.
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=item B<-L> I<directory>
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Add I<directory> to the library search path. This option can be
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repeated.
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=item B<-l>I<name>
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Link in the library libI<name>.[bc | a | so]. This library should
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be a bytecode library.
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=item B<-emit-llvm>
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Make the output be LLVM bytecode (or assembly) instead of native object (or
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assembly).
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=back
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=head1 EXIT STATUS
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If B<llvm-gcc> succeeds, it will exit with 0. Otherwise, if an error
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occurs, it will exit with a non-zero value.
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=head1 SEE ALSO
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L<llvm-g++|llvmgxx>
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=head1 AUTHORS
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Maintained by the LLVM Team (L<http://llvm.org>).
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=cut
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