1 =pod 2 3 =head1 NAME 4 5 llvm-gcc - LLVM C front-end 6 7 =head1 SYNOPSIS 8 9 B<llvm-gcc> [I<options>] I<filename> 10 11 =head1 DESCRIPTION 12 13 The B<llvm-gcc> command is the LLVM C front end. It is a modified 14 version of gcc that compiles C/ObjC programs into native objects, LLVM 15 bitcode or LLVM assembly language, depending upon the options. 16 17 By default, B<llvm-gcc> compiles to native objects just like GCC does. If the 18 B<-emit-llvm> and B<-c> options are given then it will generate LLVM bitcode files 19 instead. If B<-emit-llvm> and B<-S> are given, then it will generate LLVM 20 assembly. 21 22 Being derived from the GNU Compiler Collection, B<llvm-gcc> has many 23 of gcc's features and accepts most of gcc's options. It handles a 24 number of gcc's extensions to the C programming language. See the gcc 25 documentation for details. 26 27 =head1 OPTIONS 28 29 =over 30 31 =item B<--help> 32 33 Print a summary of command line options. 34 35 =item B<-o> I<filename> 36 37 Specify the output file to be I<filename>. 38 39 =item B<-I> I<directory> 40 41 Add a directory to the header file search path. This option can be 42 repeated. 43 44 =item B<-L> I<directory> 45 46 Add I<directory> to the library search path. This option can be 47 repeated. 48 49 =item B<-l>I<name> 50 51 Link in the library libI<name>.[bc | a | so]. This library should 52 be a bitcode library. 53 54 =item B<-emit-llvm> 55 56 Make the output be LLVM bitcode (with B<-c>) or assembly (with B<-s>) instead 57 of native object (or assembly). If B<-emit-llvm> is given without either B<-c> 58 or B<-S> it has no effect. 59 60 =back 61 62 =head1 EXIT STATUS 63 64 If B<llvm-gcc> succeeds, it will exit with 0. Otherwise, if an error 65 occurs, it will exit with a non-zero value. 66 67 =head1 SEE ALSO 68 69 L<llvm-g++|llvmgxx> 70 71 =head1 AUTHORS 72 73 Maintained by the LLVM Team (L<http://llvm.org/>). 74 75 =cut 76 77
