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diff --git a/docs/CommandGuide/opt.html b/docs/CommandGuide/opt.html new file mode 100644 index 0000000000..8e1274ee93 --- /dev/null +++ b/docs/CommandGuide/opt.html @@ -0,0 +1,116 @@ +<html> +<title> +opt +</title> + +<body> + +<center> +<h1>Low Level Virtual Machine</h1> +</center> +<HR> + +<h3> +NAME +</h3> + +opt + +<h3> +SYNOPSIS +</h3> + +opt [options] < filename> +<h3> +DESCRIPTION +</h3> + +The opt command is the LLVM optimizer. It takes LLVM bytecode as input, runs +the specified optimizations on it, and then outputs the optimized code in LLVM +bytecode. + +The optimizations available via opt depend upon what libraries it was linked +with, as well as any additional libraries that have been loaded with the -load +option. Use the -help option to determine what optimizations you can use. + +<h3> +OPTIONS +</h3> + +<ul> + <li> -f + <br> + Force overwrite. Normally, opt will refuse to overwrite an output + file that already exists. With this option, opt will overwrite the + output file and replace it with new bytecode. + <p> + + <li> -help + <br> + Print a summary of command line options. + <p> + + <li> -o <filename> + <br> + Specify the output filename. + <p> + + <li> -stats + <br> + Print statistics. + <p> + + <li> -time-passes + <br> + Record the amount of time needed for each pass and print it to standard + error. + <p> + + <li> -internalize-public-api-file <filename> + <br> + Preserve the symbol names listed in the file filename. + <p> + + <li> -internalize-public-api-list=<list> + <br> + Perserve the symbol names specified. + <p> + + <li> -q + <br> + Quiet mode. Do not print messages on whether the program was modified. + <p> + + <li> -load <plugin.so> + <br> + Load the dynamic object plugin.so. This object should register new + optimization passes. Once loaded, the object will add new command line + options to enable various optimizations. To see the new complete list + of optimizations, use the -help and -load options together: + <p> + opt -load <plugin.so> -help + <p> + + <li> -p + <br> + Print module after each transformation. + <p> +</ul> + +<h3> +EXIT STATUS +</h3> + +If opt succeeds, it will exit with 0. Otherwise, if an error occurs, it +will exit with a non-zero value. + +<h3> +SEE ALSO +</h3> +analyze + +<HR> +University of Illinois at Urbana-Champaign +</body> +</html> + |