|  |  | 
|  | =pod | 
|  |  | 
|  | =head1 NAME | 
|  |  | 
|  | tblgen - Target Description To C++ Code Generator | 
|  |  | 
|  | =head1 SYNOPSIS | 
|  |  | 
|  | B<tblgen> [I<options>] [I<filename>] | 
|  |  | 
|  | =head1 DESCRIPTION | 
|  |  | 
|  | B<tblgen> translates from target description (.td) files into C++ code that can | 
|  | be included in the definition of an LLVM target library. Most users of LLVM will | 
|  | not need to use this program. It is only for assisting with writing an LLVM | 
|  | target backend. | 
|  |  | 
|  | The input and output of B<tblgen> is beyond the scope of this short | 
|  | introduction. Please see the I<CodeGeneration> page in the LLVM documentation. | 
|  |  | 
|  | The F<filename> argument specifies the name of a Target Description (.td) file | 
|  | to read as input. | 
|  |  | 
|  | =head1 OPTIONS | 
|  |  | 
|  | =over | 
|  |  | 
|  | =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<tblgen> | 
|  | sends its output to standard output. | 
|  |  | 
|  | =item B<-I> F<directory> | 
|  |  | 
|  | Specify where to find other target description files for inclusion. The | 
|  | F<directory> value should be a full or partial path to a directory that contains | 
|  | target description files. | 
|  |  | 
|  | =item B<-asmwriternum> F<N> | 
|  |  | 
|  | Make -gen-asm-writer emit assembly writer number F<N>. | 
|  |  | 
|  | =item B<-class> F<class Name> | 
|  |  | 
|  | Print the enumeration list for this class. | 
|  |  | 
|  | =item B<-print-records> | 
|  |  | 
|  | Print all records to standard output (default). | 
|  |  | 
|  | =item B<-print-enums> | 
|  |  | 
|  | Print enumeration values for a class | 
|  |  | 
|  | =item B<-gen-emitter> | 
|  |  | 
|  | Generate machine code emitter. | 
|  |  | 
|  | =item B<-gen-register-enums> | 
|  |  | 
|  | Generate the enumeration values for all registers. | 
|  |  | 
|  | =item B<-gen-register-desc> | 
|  |  | 
|  | Generate a register info description for each register. | 
|  |  | 
|  | =item B<-gen-register-desc-header> | 
|  |  | 
|  | Generate a register info description header for each register. | 
|  |  | 
|  | =item B<-gen-instr-enums> | 
|  |  | 
|  | Generate enumeration values for instructions. | 
|  |  | 
|  | =item B<-gen-instr-desc> | 
|  |  | 
|  | Generate instruction descriptions. | 
|  |  | 
|  | =item B<-gen-asm-writer> | 
|  |  | 
|  | Generate the assembly writer. | 
|  |  | 
|  | =item B<-gen-dag-isel> | 
|  |  | 
|  | Generate a DAG (Directed Acycle Graph) instruction selector. | 
|  |  | 
|  | =item B<-gen-subtarget> | 
|  |  | 
|  | Generate subtarget enumerations. | 
|  |  | 
|  | =item B<-gen-intrinsic> | 
|  |  | 
|  | Generate intrinsic information. | 
|  |  | 
|  | =item B<-version> | 
|  |  | 
|  | Show the version number of this program. | 
|  |  | 
|  | =back | 
|  |  | 
|  | =head1 EXIT STATUS | 
|  |  | 
|  | If B<tblgen> 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 |