11:24 <travis-ci> [travis-ci] Build details : http://travis-ci.org/manastech/crystal/builds/25323094

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21:44 <Kurt_> Hey, I'm working through some of the wiki docs, specifically https://github.com/manastech/crystal/wiki/Introduction#hello-world , but I'm recieving the errors `Invalid option: -O3` and `Invalid option: -ll`. Is there something else I need to configure on my machine to use llvm compiler flags?

22:17 <drizz> Kurt_: bin/crystal hello.cr --llc "-O3" maybe

22:23 <drizz> or use --release when compiling, it implies -O3

22:29 <Kurt_> That compiled :) but all that is generated is an executable. I'm not particularly familiar with the llvm and the description in that section lead me to believe this generates something human readable?

22:44 <asterite> Hi @Kurt_

22:45 <asterite> I just saw your message. The wiki is outdated (maybe we should delete everything in it)

22:49 <asterite> There, I deleted those it, and also the “Developers” wiki, because they were really outdated and led more to confusion than explanation. I’ll try to write (and keep in sync) docs in the official site

22:50 <Kurt_> Awesome, that would be really helpful!

22:51 <asterite> For now you can read the samples and just try things out and expect things to work almost as they would in Ruby (there are some differences)

22:55 <asterite> To get to see what llvm a program produces, you can do —ll

22:55 <asterite> then in the directory .crystal you will find those .ll files

22:56 <asterite> another way is to compile it like this: DUMP=1 bin/crystal foo.cr —single-module

22:56 <asterite> that will output it to the standard output, but without optimizations

22:56 <asterite> it will be quite a lot of llvm code because there are some initializations in prelude.cr