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llvm-extract

Langue: en

Autres versions - même langue

Version: 2010-05-07 (ubuntu - 24/10/10)

Section: 1 (Commandes utilisateur)

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.
--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.
-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.

SEE ALSO

bugpoint

AUTHORS

Maintained by the LLVM Team (<http://llvm.org>).
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