forked from OSchip/llvm-project
140 lines
2.7 KiB
Plaintext
140 lines
2.7 KiB
Plaintext
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=pod
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=head1 NAME
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tblgen - Target Description To C++ Code Generator
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=head1 SYNOPSIS
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B<tblgen> [I<options>] [I<filename>]
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=head1 DESCRIPTION
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B<tblgen> translates from target description (.td) files into C++ code that can
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be included in the definition of an LLVM target library. Most users of LLVM will
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not need to use this program. It is only for assisting with writing an LLVM
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target backend.
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The input and output of B<tblgen> is beyond the scope of this short
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introduction. Please see the I<CodeGeneration> page in the LLVM documentation.
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The F<filename> argument specifies the name of a Target Description (.td) file
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to read as input.
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=head1 OPTIONS
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=over
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=item B<-help>
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Print a summary of command line options.
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=item B<-o> F<filename>
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Specify the output file name. If F<filename> is C<->, then B<tblgen>
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sends its output to standard output.
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=item B<-I> F<directory>
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Specify where to find other target description files for inclusion. The
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F<directory> value should be a full or partial path to a directory that contains
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target description files.
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=item B<-asmparsernum> F<N>
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Make -gen-asm-parser emit assembly writer number F<N>.
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=item B<-asmwriternum> F<N>
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Make -gen-asm-writer emit assembly writer number F<N>.
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=item B<-class> F<class Name>
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Print the enumeration list for this class.
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=item B<-print-records>
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Print all records to standard output (default).
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=item B<-print-enums>
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Print enumeration values for a class
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=item B<-print-sets>
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Print expanded sets for testing DAG exprs.
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=item B<-gen-emitter>
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Generate machine code emitter.
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=item B<-gen-register-info>
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Generate registers and register classes info.
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=item B<-gen-instr-info>
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Generate instruction descriptions.
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=item B<-gen-asm-writer>
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Generate the assembly writer.
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=item B<-gen-disassembler>
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Generate disassembler.
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=item B<-gen-pseudo-lowering>
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Generate pseudo instruction lowering.
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=item B<-gen-dag-isel>
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Generate a DAG (Directed Acycle Graph) instruction selector.
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=item B<-gen-asm-matcher>
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Generate assembly instruction matcher.
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=item B<-gen-dfa-packetizer>
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Generate DFA Packetizer for VLIW targets.
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=item B<-gen-fast-isel>
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Generate a "fast" instruction selector.
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=item B<-gen-subtarget>
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Generate subtarget enumerations.
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=item B<-gen-intrinsic>
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Generate intrinsic information.
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=item B<-gen-tgt-intrinsic>
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Generate target intrinsic information.
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=item B<-gen-enhanced-disassembly-info>
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Generate enhanced disassembly info.
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=item B<-version>
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Show the version number of this program.
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=back
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=head1 EXIT STATUS
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If B<tblgen> succeeds, it will exit with 0. Otherwise, if an error
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occurs, it will exit with a non-zero value.
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=head1 AUTHORS
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Maintained by The LLVM Team (L<http://llvm.org/>).
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=cut
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