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Diffstat (limited to 'docs/CommandGuide/opt.html')
| -rw-r--r-- | docs/CommandGuide/opt.html | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/docs/CommandGuide/opt.html b/docs/CommandGuide/opt.html index cab594618f..52b168393e 100644 --- a/docs/CommandGuide/opt.html +++ b/docs/CommandGuide/opt.html @@ -20,19 +20,27 @@ opt SYNOPSIS </h3> -opt [options] < filename> +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 +the specified optimizations on it, and then outputs the optimized LLVM bytecode. +<p> -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. +The optimizations available via opt depend upon what libraries were linked +into it 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. +<p> +If no filename is specified on the command line, opt reads its input from +standard input. +<p> + +If an output filename is not specified with the -o option, opt writes its +output to the standard output. <h3> OPTIONS </h3> |