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      1 tblgen - Target Description To C++ Code Generator
      2 =================================================
      3 
      4 
      5 SYNOPSIS
      6 --------
      7 
      8 
      9 **tblgen** [*options*] [*filename*]
     10 
     11 
     12 DESCRIPTION
     13 -----------
     14 
     15 
     16 **tblgen** translates from target description (.td) files into C++ code that can
     17 be included in the definition of an LLVM target library. Most users of LLVM will
     18 not need to use this program. It is only for assisting with writing an LLVM
     19 target backend.
     20 
     21 The input and output of **tblgen** is beyond the scope of this short
     22 introduction. Please see the *CodeGeneration* page in the LLVM documentation.
     23 
     24 The *filename* argument specifies the name of a Target Description (.td) file
     25 to read as input.
     26 
     27 
     28 OPTIONS
     29 -------
     30 
     31 
     32 
     33 **-help**
     34 
     35  Print a summary of command line options.
     36 
     37 
     38 
     39 **-o** *filename*
     40 
     41  Specify the output file name.  If *filename* is ``-``, then **tblgen**
     42  sends its output to standard output.
     43 
     44 
     45 
     46 **-I** *directory*
     47 
     48  Specify where to find other target description files for inclusion. The
     49  *directory* value should be a full or partial path to a directory that contains
     50  target description files.
     51 
     52 
     53 
     54 **-asmparsernum** *N*
     55 
     56  Make -gen-asm-parser emit assembly writer number *N*.
     57 
     58 
     59 
     60 **-asmwriternum** *N*
     61 
     62  Make -gen-asm-writer emit assembly writer number *N*.
     63 
     64 
     65 
     66 **-class** *class Name*
     67 
     68  Print the enumeration list for this class.
     69 
     70 
     71 
     72 **-print-records**
     73 
     74  Print all records to standard output (default).
     75 
     76 
     77 
     78 **-print-enums**
     79 
     80  Print enumeration values for a class
     81 
     82 
     83 
     84 **-print-sets**
     85 
     86  Print expanded sets for testing DAG exprs.
     87 
     88 
     89 
     90 **-gen-emitter**
     91 
     92  Generate machine code emitter.
     93 
     94 
     95 
     96 **-gen-register-info**
     97 
     98  Generate registers and register classes info.
     99 
    100 
    101 
    102 **-gen-instr-info**
    103 
    104  Generate instruction descriptions.
    105 
    106 
    107 
    108 **-gen-asm-writer**
    109 
    110  Generate the assembly writer.
    111 
    112 
    113 
    114 **-gen-disassembler**
    115 
    116  Generate disassembler.
    117 
    118 
    119 
    120 **-gen-pseudo-lowering**
    121 
    122  Generate pseudo instruction lowering.
    123 
    124 
    125 
    126 **-gen-dag-isel**
    127 
    128  Generate a DAG (Directed Acycle Graph) instruction selector.
    129 
    130 
    131 
    132 **-gen-asm-matcher**
    133 
    134  Generate assembly instruction matcher.
    135 
    136 
    137 
    138 **-gen-dfa-packetizer**
    139 
    140  Generate DFA Packetizer for VLIW targets.
    141 
    142 
    143 
    144 **-gen-fast-isel**
    145 
    146  Generate a "fast" instruction selector.
    147 
    148 
    149 
    150 **-gen-subtarget**
    151 
    152  Generate subtarget enumerations.
    153 
    154 
    155 
    156 **-gen-intrinsic**
    157 
    158  Generate intrinsic information.
    159 
    160 
    161 
    162 **-gen-tgt-intrinsic**
    163 
    164  Generate target intrinsic information.
    165 
    166 
    167 
    168 **-gen-enhanced-disassembly-info**
    169 
    170  Generate enhanced disassembly info.
    171 
    172 
    173 
    174 **-version**
    175 
    176  Show the version number of this program.
    177 
    178 
    179 
    180 
    181 EXIT STATUS
    182 -----------
    183 
    184 
    185 If **tblgen** succeeds, it will exit with 0.  Otherwise, if an error
    186 occurs, it will exit with a non-zero value.
    187