xref: /freebsd/usr.bin/clang/llvm-extract/llvm-extract.1 (revision cddbc3b40812213ff00041f79174cac0be360a2a)
$FreeBSD$
Man page generated from reStructuredText.
.
"LLVM-EXTRACT" "1" "2018-08-02" "7" "LLVM"
NAME
llvm-extract - extract a function from an LLVM module . .nr rst2man-indent-level 0 . \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .rstReportMargin pre:
. RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .rstReportMargin post:
.. . RE indent \\n[an-margin]
old: \\n[rst2man-indent\\n[rst2man-indent-level]]
.nr rst2man-indent-level -1 new: \\n[rst2man-indent\\n[rst2man-indent-level]]
..
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 NDENT 0.0 NDENT 3.5 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. NINDENT NINDENT --func function-name NDENT 0.0 NDENT 3.5 Extract the function named function-name from the LLVM bitcode. May be specified multiple times to extract multiple functions at once. NINDENT NINDENT --rfunc function-regular-expr NDENT 0.0 NDENT 3.5 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. NINDENT NINDENT --glob global-name NDENT 0.0 NDENT 3.5 Extract the global variable named global-name from the LLVM bitcode. May be specified multiple times to extract multiple global variables at once. NINDENT NINDENT --rglob glob-regular-expr NDENT 0.0 NDENT 3.5 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. NINDENT NINDENT -help NDENT 0.0 NDENT 3.5 Print a summary of command line options. NINDENT NINDENT -o filename NDENT 0.0 NDENT 3.5 Specify the output filename. If filename is "-" (the default), then llvm-extract sends its output to standard output. NINDENT NINDENT -S NDENT 0.0 NDENT 3.5 Write output in LLVM intermediate language (instead of bitcode). NINDENT NINDENT
EXIT STATUS
If llvm-extract succeeds, it will exit with 0. Otherwise, if an error occurs, it will exit with a non-zero value.
SEE ALSO
bugpoint
AUTHOR
Maintained by The LLVM Team (http://llvm.org/).
COPYRIGHT
2003-2018, LLVM Project Generated by docutils manpage writer.
.