24326140 upgrade LLVM to 3.8.1
24326159 upgrade clang to 3.8.1
22902339 memory corruption caused by undefined behavior in LLVM IR Module
22777179 implement [ -mtune= -march= -mcpu= ] in clang SPARC
22778085 LLVM is using %icc when it should be using %xcc
22778089 the SPARCV9 IS implementation is incomplete
22778098 LLVM should emit proc identifiers in SPARC assembler (capabilities)
22778650 clang should support OpenMP because it can
22859423 llvm CodeGen on Intel emits a bogus .ctors section
22902355 clang CodeGen is affected by 22902339
23701635 clang produces amd64 opcodes, but calls 32-bit assembler by default
23593143 lli JIT bitcode parsing creates a main function with wrong argc/argv
21759660 clang packages should include the scan-view and scan-build utilities
23854357 clang should check for GNU ld
17867434 clang crashed in LEXER
24306550 clang crashes in llvm::Twine::toStringRef
24311726 clang's Perl and Python utilities should not use #!/usr/bin/env
24312028 llvm::Twine needs copy constructors and assignment operators
24312221 classes must be CopyConstructible, CopyAssignable, MoveConstructible ...
24314621 LLVM should build using the new CMake based build system
24314638 LLVM CommandLine subsystem is busted
24314687 static initialization of optimization passes doesn't work as intended
21870069 clang makes incorrect assumptions about anonymous namespace instantiation order
22643565 llvm's Google test harness needs some attention
24314745 clang should support PIE executables in Solaris
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.TH "LLVM-EXTRACT" "1" "2016-07-10" "3.8" "LLVM"
.SH NAME
llvm-extract \- extract a function from an LLVM module
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.SH SYNOPSIS
.sp
\fBllvm\-extract\fP [\fIoptions\fP] \fB\-\-func\fP \fIfunction\-name\fP [\fIfilename\fP]
.SH DESCRIPTION
.sp
The \fBllvm\-extract\fP 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.
.sp
In addition to extracting the bitcode of the specified function,
\fBllvm\-extract\fP will also remove unreachable global variables,
prototypes, and unused types.
.sp
The \fBllvm\-extract\fP command reads its input from standard input if
filename is omitted or if filename is \fB\-\fP\&. The output is always written to
standard output, unless the \fB\-o\fP option is specified (see below).
.SH OPTIONS
.sp
\fB\-f\fP
.INDENT 0.0
.INDENT 3.5
Enable binary output on terminals. Normally, \fBllvm\-extract\fP will
refuse to write raw bitcode output if the output stream is a terminal. With
this option, \fBllvm\-extract\fP will write raw bitcode regardless of the
output device.
.UNINDENT
.UNINDENT
.sp
\fB\-\-func\fP \fIfunction\-name\fP
.INDENT 0.0
.INDENT 3.5
Extract the function named \fIfunction\-name\fP from the LLVM bitcode. May be
specified multiple times to extract multiple functions at once.
.UNINDENT
.UNINDENT
.sp
\fB\-\-rfunc\fP \fIfunction\-regular\-expr\fP
.INDENT 0.0
.INDENT 3.5
Extract the function(s) matching \fIfunction\-regular\-expr\fP from the LLVM bitcode.
All functions matching the regular expression will be extracted. May be
specified multiple times.
.UNINDENT
.UNINDENT
.sp
\fB\-\-glob\fP \fIglobal\-name\fP
.INDENT 0.0
.INDENT 3.5
Extract the global variable named \fIglobal\-name\fP from the LLVM bitcode. May be
specified multiple times to extract multiple global variables at once.
.UNINDENT
.UNINDENT
.sp
\fB\-\-rglob\fP \fIglob\-regular\-expr\fP
.INDENT 0.0
.INDENT 3.5
Extract the global variable(s) matching \fIglobal\-regular\-expr\fP from the LLVM
bitcode. All global variables matching the regular expression will be
extracted. May be specified multiple times.
.UNINDENT
.UNINDENT
.sp
\fB\-help\fP
.INDENT 0.0
.INDENT 3.5
Print a summary of command line options.
.UNINDENT
.UNINDENT
.sp
\fB\-o\fP \fIfilename\fP
.INDENT 0.0
.INDENT 3.5
Specify the output filename. If filename is "\-" (the default), then
\fBllvm\-extract\fP sends its output to standard output.
.UNINDENT
.UNINDENT
.sp
\fB\-S\fP
.INDENT 0.0
.INDENT 3.5
Write output in LLVM intermediate language (instead of bitcode).
.UNINDENT
.UNINDENT
.SH EXIT STATUS
.sp
If \fBllvm\-extract\fP succeeds, it will exit with 0. Otherwise, if an error
occurs, it will exit with a non\-zero value.
.SH SEE ALSO
.sp
bugpoint
.SH AUTHOR
Maintained by The LLVM Team (http://llvm.org/).
.SH COPYRIGHT
2003-2016, LLVM Project
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