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128 lines
3.0 KiB
HTML
128 lines
3.0 KiB
HTML
<html>
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<title>
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LLVM: lli tool
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</title>
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<body bgcolor=white>
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<center>
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<h1>LLVM: <tt>lli</tt> tool</h1>
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</center>
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<HR>
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<h3>
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NAME
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</h3>
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<tt>lli</tt>
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<h3>
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SYNOPSIS
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</h3>
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<tt>lli [options] [filename] [args ...]</tt>
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<h3>
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DESCRIPTION
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</h3>
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<tt>lli</tt> directly executes programs in LLVM format.
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It takes a program in LLVM
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bytecode format and executes it using a just-in-time
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compiler, if one is available for the current architecture, or an interpreter.
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<tt>lli</tt> takes all of the same code generator options as the
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<tt><a href="llc.html">llc</a></tt> tool, but they are only applicable when
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the just-in-time compiler is being used.
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<p>
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If filename is not specified, then <tt>lli</tt> reads the LLVM bytecode for
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the program from standard input.
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<p>
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The optional "args" specified on the command line are passed to the
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program as arguments.
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<p>
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<h3>
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OPTIONS
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</h3>
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<ul>
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<li> <tt>-array-checks</tt>
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<br>
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Enable array bound checks. If an LLVM program attempts to access an
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element of an array which is not within the size of that array,
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<tt>lli</tt> will print an error message and call <tt>abort(3)</tt>.
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This is presently only applicable to the interpreter.
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<p>
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<li> <tt>-help</tt>
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<br>
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Print a summary of command line options.
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<p>
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<li> <tt>-stats</tt>
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<br>
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Print statistics from the code-generation passes. This is only meaningful
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for the just-in-time compiler, at present.
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<p>
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<li> <tt>-time-passes</tt>
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<br>
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Record the amount of time needed for each code-generation pass and print
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it to standard error.
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<p>
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<li> <tt>-march=<arch></tt>
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<br>
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Use the specified non-default architecture when selecting a code generator
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for the just-in-time compiler. This may result in a crash if you pick an
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architecture which is not compatible with the hardware you are running
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<tt>lli</tt> on.
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<p>
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<li> <tt>-quiet, -q</tt>
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<br>
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Do not print any output about the return values of functions.
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This is presently only applicable to the interpreter.
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<p>
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<li> <tt>-force-interpreter={false,true}</tt>
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<br>
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If set to true, use the interpreter even if a just-in-time compiler is
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available for this architecture. Defaults to false.
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<p>
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<li> <tt>-trace</tt>
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<br>
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Print an LLVM-instruction-level dynamic execution trace. This is
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presently only applicable to the interpreter.
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<p>
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<li> <tt>-f=<name></tt>
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<br>
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Call the function named <tt><name></tt> to start the program.
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Note: The function is assumed to have the C signature <tt>int
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<tt><name></tt> (int, char **, char **)</tt>.
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If you try to use this option to call a function of incompatible type,
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undefined behavior may result. Defaults to "main".
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<p>
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</ul>
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<h3>
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EXIT STATUS
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</h3>
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If <tt>lli</tt> fails to load the program, it will exit with an exit code of 1.
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Otherwise, it will return the exit code of the program it executes.
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<h3>
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SEE ALSO
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</h3>
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<a href="llc.html"><tt>llc</tt></a>
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<HR>
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Maintained by the <a href="http://llvm.cs.uiuc.edu">LLVM Team</a>.
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</body>
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</html>
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