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).

-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

Generate intrinsic information.

-gen-tgt-intrinsic

Generate target intrinsic information.

-gen-enhanced-disassembly-info

Generate enhanced disassembly info.

-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.