USAGE: llvm-tblgen [options] <input file>

OPTIONS:

Color Options:

  --color                                  - Use colors in output (default=autodetect)

General options:

  -D <macro name>                          - Name of the macro to be defined
  -I <directory>                           - Directory of include files
  -d <filename>                            - Dependency filename
  Action to perform:
      --gen-arm-target-def                    - Generate the ARM or AArch64 Architecture information header.
      --gen-attrs                             - Generate attributes
      --gen-directive-decl                    - Generate directive related declaration code (header file)
      --gen-directive-impl                    - Generate directive related implementation code
      --gen-intrinsic-enums                   - Generate intrinsic enums
      --gen-intrinsic-impl                    - Generate intrinsic implementation code
      --gen-riscv-target-def                  - Generate the list of CPUs and extensions for RISC-V
      --gen-runtime-libcalls                  - Generate RuntimeLibcalls
      --print-records                         - Print all records to stdout (default)
      --print-detailed-records                - Print full details of all records to stdout
      --null-backend                          - Do nothing after parsing (useful for timing)
      --dump-json                             - Dump all records as machine-readable JSON
      --print-enums                           - Print enum values for a class
      --print-sets                            - Print expanded sets for testing DAG exprs
      --gen-target-features                   - Generate subtarget enumerations
      --gen-target-library-info               - Generate TargetLibraryInfo
      --gen-vt                                - Generate ValueType
      --gen-asm-matcher                       - Generate assembly instruction matcher
      --gen-asm-writer                        - Generate assembly writer
      --gen-callingconv                       - Generate calling convention descriptions
      --gen-emitter                           - Generate machine code emitter
      --gen-compress-inst-emitter             - Generate compressed instructions.
      --gen-ctags                             - Generate ctags-compatible index
      --gen-dag-isel                          - Generate a DAG instruction selector
      --gen-automata                          - Generate generic automata
      --gen-dfa-packetizer                    - Generate DFA Packetizer for VLIW targets
      --gen-disassembler                      - Generate disassembler
      --gen-dxil-operation                    - Generate DXIL operation information
      --gen-exegesis                          - Generate llvm-exegesis tables
      --gen-fast-isel                         - Generate a "fast" instruction selector
      --gen-global-isel-combiner              - Generate GlobalISel Combiner
      --gen-global-isel                       - Generate GlobalISel selector
      --gen-instr-docs                        - Generate instruction documentation
      --gen-instr-info                        - Generate instruction descriptions
      --gen-macro-fusion-pred                 - Generate macro fusion predicators.
      --gen-opt-parser-defs                   - Generate option definitions
      --gen-opt-rst                           - Generate option RST
      --gen-pseudo-lowering                   - Generate pseudo instruction lowering
      --gen-register-bank                     - Generate registers bank descriptions
      --gen-register-info                     - Generate registers and register classes info
      --gen-sd-node-info                      - Generate target SDNode descriptions
      --gen-searchable-tables                 - Generate generic binary-searchable table
      --gen-subtarget                         - Generate subtarget enumerations
      --gen-x86-instr-mapping                 - Generate X86 instruction mapping
      --gen-x86-fold-tables                   - Generate X86 fold tables
      --gen-x86-mnemonic-tables               - Generate X86 mnemonic tables
  --gisel-extended-llt                     - Generate extended llt names in match tables
  --no-warn-on-unused-template-args        - Disable unused template argument warnings.
  -o <filename>                            - Output filename
  --time-phases                            - Time phases of parser and backend
  --write-if-changed                       - Only write output if it changed

Generic Options:

  --help                                   - Display available options (--help-hidden for more)
  --help-list                              - Display list of available options (--help-list-hidden for more)
  --version                                - Display the version of this program

Options for -gen-asm-matcher:

  --match-prefix=<string>                  - Only match instructions with the given prefix

Options for -gen-asm-parser:

  --asmparsernum=<uint>                    - Make -gen-asm-parser emit assembly parser #N

Options for -gen-asm-writer:

  --asmwriternum=<uint>                    - Make -gen-asm-writer emit assembly writer #N

Options for -gen-dag-isel:

  --instrument-coverage                    - Generates tables to help identify patterns matched
  --omit-comments                          - Do not generate comments

Options for -gen-disassembler:

  --ignore-fully-defined-operands          - Do not automatically decode operands with no '?' in their encoding.
  --ignore-non-decodable-operands          - Do not issue an error if an operand cannot be decoded automatically.
  --specialize-decoders-per-bitwidth       - Specialize the generated `decodeToMCInst` function per bitwidth. Helps reduce the code size.
  --suppress-per-hwmode-duplicates=<value> - Suppress duplication of instrs into per-HwMode decoder tables
    =O0                                    -   Do not prevent DecoderTable duplications caused by HwModes
    =O1                                    -   Remove duplicate DecoderTable entries generated due to HwModes
    =O2                                    -   Extract HwModes-specific instructions into new DecoderTables, significantly reducing Table Duplications
  --use-fn-table-in-decode-to-mcinst       - Use a table of function pointers instead of a switch case in the
                                             generated `decodeToMCInst` function. Helps improve compile time
                                             of the generated code.

Options for -gen-global-isel:

  --gisel-coverage-file=<string>           - Specify file to retrieve coverage information from
  --instrument-gisel-coverage              - Generate coverage instrumentation for GlobalISel
  --optimize-match-table                   - Generate an optimized version of the match table
  --warn-on-skipped-patterns               - Explain why a pattern was skipped for inclusion in the GlobalISel selector

Options for -gen-global-isel-combiner:

  --combiners=<string>                     - Emit the specified combiners
  --gicombiner-debug-cxxpreds              - Add Contextual/Debug comments to all C++ predicates
  --gicombiner-debug-typeinfer             - Print type inference debug logs
  --gicombiner-stop-after-parse            - Stop processing after parsing rules and dump state

Options for -gen-instr-info:

  --instr-info-expand-mi-operand-info      - Expand operand's MIOperandInfo DAG into suboperands

Options for -gen-intrinsic-enums:

  --intrinsic-prefix=<target prefix>       - Generate intrinsics with this target prefix

Options for -gen-register-info:

  --register-info-debug                    - Dump register information to help debugging

Options for -gen-sdnode-info:

  --sdnode-namespace=<string>              - Specify target SDNode namespace (default=<Target>ISD)
  --warn-on-skipped-nodes                  - Explain why a node was skipped (default=true)

Options for -print-enums:

  --class=<class name>                     - Print Enum list for this class