This is the command llvm-extract that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
llvm-extract - extract a function from an LLVM module
SYNOPSIS
llvm-extract [options] --func function-name [filename]
DESCRIPTION
The llvm-extract command takes the name of a function and extracts it from the specified
LLVM bitcode file. It is primarily used as a debugging tool to reduce test cases from
larger programs that are triggering a bug.
In addition to extracting the bitcode of the specified function, llvm-extract will also
remove unreachable global variables, prototypes, and unused types.
The llvm-extract command reads its input from standard input if filename is omitted or if
filename is -. The output is always written to standard output, unless the -o option is
specified (see below).
OPTIONS
-f
Enable binary output on terminals. Normally, llvm-extract will refuse to write raw
bitcode output if the output stream is a terminal. With this option, llvm-extract will
write raw bitcode regardless of the output device.
--func function-name
Extract the function named function-name from the LLVM bitcode. May be specified
multiple times to extract multiple functions at once.
--rfunc function-regular-expr
Extract the function(s) matching function-regular-expr from the LLVM bitcode. All
functions matching the regular expression will be extracted. May be specified multiple
times.
--glob global-name
Extract the global variable named global-name from the LLVM bitcode. May be specified
multiple times to extract multiple global variables at once.
--rglob glob-regular-expr
Extract the global variable(s) matching global-regular-expr from the LLVM bitcode. All
global variables matching the regular expression will be extracted. May be specified
multiple times.
-help
Print a summary of command line options.
-o filename
Specify the output filename. If filename is "-" (the default), then llvm-extract sends
its output to standard output.
-S
Write output in LLVM intermediate language (instead of bitcode).
EXIT STATUS
If llvm-extract succeeds, it will exit with 0. Otherwise, if an error occurs, it will
exit with a non-zero value.
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