Re: [csmith-dev] How to generate large programs

[chenyang <chenyang@cs.utah.edu>]

Hi Junio,

As Eric says, Csmith doesn't support an option that would generate a 
"fix-sized" (or within a range) program, but you can pass --max-funcs 
<num> --max-block-size <num> to Csmith and Csmith may generate large 
programs for you. When the numbers passed to these options are "large", 
e.g., --max-funcs 50 --max-block-size 20, Csmith can become very slow 
and it may take a while to generate a test case.

- Yang

On 2014-09-10 12:20, Junio Cezar wrote:
>  I would like to use CSmith to test the asymptotic complexity of a
> few compiler optimizations. To this end, I need to generate random
> programs of different sizes. I can get programs of different sizes by
> varying the seed of the random number generator that CSmith uses.
> However, there seems to exist a limit on how much these programs grow.
> So, I would like to know what I can do to generate programs
> arbitrarily large. The bigger the program, the better for me. I am
> willing to change CSmith source code, if there is anything blocking
> the growth of the programs.
>
>     Thank you very much,
>
> Junio Cezar