NAME

       tblgen - Target Description To C++ Code Generator

SYNOPSIS

       tblgen [options] [filename]

DESCRIPTION

       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 tblgen is beyond the scope of this short introduction; please see
       the introduction to TableGen.

       The filename argument specifies the name of a Target Description (.td)  file  to  read  as
       input.

OPTIONS

       -help  Print a summary of command line options.

       -o filename
              Specify  the  output  file name.  If filename is -, then tblgen sends its output to
              standard output.

       -I directory
              Specify where to find other target description files for inclusion.  The  directory
              value  should  be  a  full  or  partial  path  to  a directory that contains target
              description files.

       -asmparsernum N
              Make -gen-asm-parser emit assembly writer number N.

       -asmwriternum N
              Make -gen-asm-writer emit assembly writer number N.

       -class className
              Print the enumeration list for this class.

       -print-records
              Print all records to standard output (default).

       -dump-json
              Print a  JSON  representation  of  all  records,  suitable  for  further  automated
              processing.

       -print-enums
              Print enumeration values for a class.

       -print-sets
              Print expanded sets for testing DAG exprs.

       -gen-emitter
              Generate machine code emitter.

       -gen-register-info
              Generate registers and register classes info.

       -gen-instr-info
              Generate instruction descriptions.

       -gen-asm-writer
              Generate the assembly writer.

       -gen-disassembler
              Generate disassembler.

       -gen-pseudo-lowering
              Generate pseudo instruction lowering.

       -gen-dag-isel
              Generate a DAG (Directed Acycle Graph) instruction selector.

       -gen-asm-matcher
              Generate assembly instruction matcher.

       -gen-dfa-packetizer
              Generate DFA Packetizer for VLIW targets.

       -gen-fast-isel
              Generate a “fast” instruction selector.

       -gen-subtarget
              Generate subtarget enumerations.

       -gen-intrinsic-enums
              Generate intrinsic enums.

       -gen-intrinsic-impl
              Generate intrinsic implementation.

       -gen-tgt-intrinsic
              Generate target intrinsic information.

       -gen-enhanced-disassembly-info
              Generate enhanced disassembly info.

       -gen-exegesis
              Generate llvm-exegesis tables.

       -version
              Show the version number of this program.

EXIT STATUS

       If tblgen succeeds, it will exit with 0.  Otherwise, if an error occurs, it will exit with
       a non-zero value.

AUTHOR

       Maintained by the LLVM Team (https://llvm.org/).

COPYRIGHT

       2003-2019, LLVM Project