NAME

       xxx-tblgen - Target Description to C++ Code

SYNOPSIS

       xxx-tblgen [options] [filename]

DESCRIPTION

       xxx-tblgen is a family of programs that translates target description (.td) files into C++
       code and other output formats. Most users of LLVM will not need to use this program. It is
       used only for writing parts of the compiler or LLVM target backends.

       The  details  of  the  input  and  output  of xxx-tblgen is beyond the scope of this short
       introduction; please see the TableGen Overview for an introduction and for  references  to
       additional TableGen documents.

       The  filename  argument  specifies  the  name  of  the  Target Description (.td) file that
       TableGen processes.

OPTIONS

   General Options
       -help  Print a description of the command line options.

       -help-list
              Print a description of the command line options in a simple list format.

       -D=macroname
              Specify the name of a macro to be defined. The name  is  defined,  but  it  has  no
              particular value.

       -d=filename
              Specify the name of the dependency filename.

       -debug Enable debug output.

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

       -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.

       -null-backend
              Parse the source files and build the records, but do not run any backend.  This  is
              useful for timing the frontend.

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

       -print-records
              Print all classes and records to standard output (default backend option).

       -print-detailed-records
              Print a detailed report of all global variables, classes, and records  to  standard
              output.

       -stats Print a report with any statistics collected by the backend.

       -time-phases
              Time the parser and backend phases and print a report.

       -version
              Show the version number of the program.

       -write-if-changed
              Write the output file only if it is new or has changed.

   llvm-tblgen Options
       -gen-asm-matcher
              Generate assembly instruction matcher.

       -match-prefix=prefix
              Make -gen-asm-matcher match only instructions with the given prefix.

       -gen-asm-parser
              Generate assembly instruction parser.

       -asmparsernum=n
              Make -gen-asm-parser emit assembly parser number n.

       -gen-asm-writer
              Generate assembly writer.

       -asmwriternum=n
              Make -gen-asm-writer emit assembly writer number n.

       -gen-attrs
              Geneerate attributes.

       -gen-automata
              Generate generic automata.

       -gen-callingconv
              Generate calling convention descriptions.

       -gen-compress-inst-emitter
              Generate RISCV compressed instructions.

       -gen-ctags
              Generate ctags-compatible index.

       -gen-dag-isel
              Generate a DAG (directed acyclic graph) instruction selector.

       -instrument-coverage
              Make -gen-dag-isel generate tables to help identify the patterns matched.

       -omit-comments
              Make -gen-dag-isel omit comments. The default is false.

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

       -gen-directive-decl
              Generate directive related declaration code (header file).

       -gen-directive-gen
              Generate directive related implementation code part.

       -gen-directive-impl
              Generate directive related implementation code.

       -gen-disassembler
              Generate disassembler.

       -gen-emitter
              Generate machine code emitter.

       -gen-exegesis
              Generate llvm-exegesis tables.

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

       -gen-global-isel
              Generate GlobalISel selector.

       -gisel-coverage-file=filename
              Specify the file from which to retrieve coverage information.

       -instrument-gisel-coverage
              Make -gen-global-isel generate coverage instrumentation.

       -optimize-match-table
              Make -gen-global-isel generate an optimized version of the match table.

       -warn-on-skipped-patterns
              Make -gen-global-isel explain why a pattern was skipped for inclusion.

       -gen-global-isel-combiner
              Generate GlobalISel combiner.

       -combiners=list
              Make -gen-global-isel-combiner emit the specified combiners.

       -gicombiner-show-expansions
              Make  -gen-global-isel-combiner  use  C++  comments  to indicate occurences of code
              expansion.

       -gicombiner-stop-after-build
              Make -gen-global-isel-combiner stop processing after building the match tree.

       -gicombiner-stop-after-parse
              Make -gen-global-isel-combiner stop processing after parsing rules and dump state.

       -gen-instr-info
              Generate instruction descriptions.

       -gen-instr-docs
              Generate instruction documentation.

       -gen-intrinsic-enums
              Generate intrinsic enums.

       -intrinsic-prefix=prefix
              Make -gen-intrinsic-enums generate intrinsics with this target prefix.

       -gen-intrinsic-impl
              Generate intrinsic information.

       -gen-opt-parser-defs
              Generate options definitions.

       -gen-opt-rst
              Generate option RST.

       -gen-pseudo-lowering
              Generate pseudo instruction lowering.

       -gen-register-bank
              Generate register bank descriptions.

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

       -register-info-debug
              Make -gen-register-info dump register information for debugging.

       -gen-searchable-tables
              Generate  generic  searchable  tables.  See  TableGen  BackEnds  for   a   detailed
              description.

       -gen-subtarget
              Generate subtarget enumerations.

       -gen-x86-EVEX2VEX-tables
              Generate X86 EVEX to VEX compress tables.

       -gen-x86-fold-tables
              Generate X86 fold tables.

       -long-string-literals
              When emitting large string tables, prefer string literals over comma-separated char
              literals. This can be a readability and compile-time performance  win,  but  upsets
              some compilers.

       -print-enums
              Print enumeration values for a class.

       -class=classname
              Make -print-enums print the enumeration list for the specified class.

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

   clang-tblgen Options
       -gen-clang-attr-classes
              Generate Clang attribute clases.

       -gen-clang-attr-parser-string-switches
              Generate all parser-related attribute string switches.

       -gen-clang-attr-subject-match-rules-parser-string-switches
              Generate all parser-related attribute subject match rule string switches.

       -gen-clang-attr-impl
              Generate Clang attribute implementations.

       -gen-clang-attr-list"
              Generate a Clang attribute list.

       -gen-clang-attr-subject-match-rule-list
              Generate a Clang attribute subject match rule list.

       -gen-clang-attr-pch-read
              Generate Clang PCH attribute reader.

       -gen-clang-attr-pch-write
              Generate Clang PCH attribute writer.

       -gen-clang-attr-has-attribute-impl
              Generate a Clang attribute spelling list.

       -gen-clang-attr-spelling-index
              Generate a Clang attribute spelling index.

       -gen-clang-attr-ast-visitor
              Generate a recursive AST visitor for Clang attributes.

       -gen-clang-attr-template-instantiate
              Generate a Clang template instantiate code.

       -gen-clang-attr-parsed-attr-list
              Generate a Clang parsed attribute list.

       -gen-clang-attr-parsed-attr-impl
              Generate the Clang parsed attribute helpers.

       -gen-clang-attr-parsed-attr-kinds
              Generate a Clang parsed attribute kinds.

       -gen-clang-attr-text-node-dump
              Generate Clang attribute text node dumper.

       -gen-clang-attr-node-traverse
              Generate Clang attribute traverser.

       -gen-clang-diags-defs
              Generate Clang diagnostics definitions.

       -clang-component component
              Only use warnings from specified component.

       -gen-clang-diag-groups
              Generate Clang diagnostic groups.

       -gen-clang-diags-index-name
              Generate Clang diagnostic name index.

       -gen-clang-basic-reader
              Generate Clang BasicReader classes.

       -gen-clang-basic-writer
              Generate Clang BasicWriter classes.

       -gen-clang-comment-nodes
              Generate Clang AST comment nodes.

       -gen-clang-decl-nodes
              Generate Clang AST declaration nodes.

       -gen-clang-stmt-nodes
              Generate Clang AST statement nodes.

       -gen-clang-type-nodes
              Generate Clang AST type nodes.

       -gen-clang-type-reader
              Generate Clang AbstractTypeReader class.

       -gen-clang-type-writer
              Generate Clang AbstractTypeWriter class.

       -gen-clang-opcodes
              Generate Clang constexpr interpreter opcodes.

       -gen-clang-sa-checkers
              Generate Clang static analyzer checkers.

       -gen-clang-comment-html-tags
              Generate  efficient  matchers  for  HTML  tag  names that are used in documentation
              comments.

       -gen-clang-comment-html-tags-properties
              Generate efficient matchers for HTML tag properties.

       -gen-clang-comment-html-named-character-references
              Generate function to translate named character references to UTF-8 sequences.

       -gen-clang-comment-command-info
              Generate command properties for commands that are used in documentation comments.

       -gen-clang-comment-command-list
              Generate list of commands that are used in documentation comments.

       -gen-clang-opencl-builtins
              Generate OpenCL builtin declaration handlers.

       -gen-arm-neon
              Generate arm_neon.h for Clang.

       -gen-arm-fp16
              Generate arm_fp16.h for Clang.

       -gen-arm-bf16
              Generate arm_bf16.h for Clang.

       -gen-arm-neon-sema
              Generate ARM NEON sema support for Clang.

       -gen-arm-neon-test
              Generate ARM NEON tests for Clang.

       -gen-arm-sve-header
              Generate arm_sve.h for Clang.

       -gen-arm-sve-builtins
              Generate arm_sve_builtins.inc for Clang.

       -gen-arm-sve-builtin-codegen
              Generate arm_sve_builtin_cg_map.inc for Clang.

       -gen-arm-sve-typeflags
              Generate arm_sve_typeflags.inc for Clang.

       -gen-arm-sve-sema-rangechecks
              Generate arm_sve_sema_rangechecks.inc for Clang.

       -gen-arm-mve-header
              Generate arm_mve.h for Clang.

       -gen-arm-mve-builtin-def
              Generate ARM MVE builtin definitions for Clang.

       -gen-arm-mve-builtin-sema
              Generate ARM MVE builtin sema checks for Clang.

       -gen-arm-mve-builtin-codegen
              Generate ARM MVE builtin code-generator for Clang.

       -gen-arm-mve-builtin-aliases
              Generate list of valid ARM MVE builtin aliases for Clang.

       -gen-arm-cde-header
              Generate arm_cde.h for Clang.

       -gen-arm-cde-builtin-def
              Generate ARM CDE builtin definitions for Clang.

       -gen-arm-cde-builtin-sema
              Generate ARM CDE builtin sema checks for Clang.

       -gen-arm-cde-builtin-codegen
              Generate ARM CDE builtin code-generator for Clang.

       -gen-arm-cde-builtin-aliases
              Generate list of valid ARM CDE builtin aliases for Clang.

       -gen-attr-docs
              Generate attribute documentation.

       -gen-diag-docs
              Generate diagnostic documentation.

       -gen-opt-docs
              Generate option documentation.

       -gen-clang-data-collectors
              Generate data collectors for AST nodes.

       -gen-clang-test-pragma-attribute-supported-attributes
              Generate a list of attributes supported by  #pragma  Clang  attribute  for  testing
              purposes.

   mlir-tblgen Options
       -gen-avail-interface-decls
              Generate availability interface declarations.

       -gen-avail-interface-defs
              Generate op interface definitions.

       -gen-dialect-doc
              Generate dialect documentation.

       -dialect
              The dialect to generate.

       -gen-directive-decl
              Generate declarations for directives (OpenMP, etc.).

       -gen-enum-decls
              Generate enum utility declarations.

       -gen-enum-defs
              Generate enum utility definitions.

       -gen-enum-from-llvmir-conversions
              Generate conversions of EnumAttrs from LLVM IR.

       -gen-enum-to-llvmir-conversions
              Generate conversions of EnumAttrs to LLVM IR.

       -gen-llvmir-conversions
              Generate LLVM IR conversions.

       -gen-llvmir-intrinsics
              Generate LLVM IR intrinsics.

       -llvmir-intrinsics-filter
              Only keep the intrinsics with the specified substring in their record name.

       -dialect-opclass-base
              The base class for the ops in the dialect we are to emit.

       -gen-op-decls
              Generate operation declarations.

       -gen-op-defs
              Generate operation definitions.

       -asmformat-error-is-fatal
              Emit a fatal error if format parsing fails.

       -op-exclude-regex
              Regular expression of name of ops to exclude (no filter if empty).

       -op-include-regex
              Regular expression of name of ops to include (no filter if empty).

       -gen-op-doc
              Generate operation documentation.

       -gen-pass-decls
              Generate operation documentation.

       -name namestring
              The name of this group of passes.

       -gen-pass-doc
              Generate pass documentation.

       -gen-rewriters
              Generate pattern rewriters.

       -gen-spirv-avail-impls
              Generate SPIR-V operation utility definitions.

       -gen-spirv-capability-implication
              Generate utility function to return implied capabilities for a given capability.

       -gen-spirv-enum-avail-decls
              Generate SPIR-V enum availability declarations.

       -gen-spirv-enum-avail-defs
              Generate SPIR-V enum availability definitions.

       -gen-spirv-op-utils
              Generate SPIR-V operation utility definitions.

       -gen-spirv-serialization
              Generate SPIR-V (de)serialization utilities and functions.

       -gen-struct-attr-decls
              Generate struct utility declarations.

       -gen-struct-attr-defs
              Generate struct utility definitions.

       -gen-typedef-decls
              Generate TypeDef declarations.

       -gen-typedef-defs
              Generate TypeDef definitions.

       -typedefs-dialect name
              Generate types for this dialect.

EXIT STATUS

       If  xxx-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

       2003-2022, LLVM Project