talk.tryitonline.net - 2017-05-11

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Downgoat

00:30

@Dennis can you add LLVM IR to TIO?

I think you're using ubuntu so this should help: apt.llvm.org

IIRC you can just do lli llvmFile.ll

Dennis

← 3 messages moved from The Nineteenth Byte

@Downgoat v1 used Ubuntu, but the new servers run on Fedora.

Downgoat

ok actually: apps.fedoraproject.org/packages/llvm

Andrew Savinykh

01:01

@Dennis This is an example of calling a c function with nasm: gist.github.com/AndrewSav/9ddf2026d797e3f969b4988644b39d2d

Note that this is for Fedora specifically

internet recommends linking with gcc instead of ld to avoid OS specific issues

@Dennis I'm not sure how to answer that. Intuitively both. You cannot allow people to download stuff, so this is something only you can do, however, it probably would be easier for you once you downloaded/installed a library, that people have a good way to include (or not) this library for their code

@Dennis Yep, seen that, not sure how you are going to pull that off

@Dennis thank you, looks good

Dennis

The certs were issued April 15. Just had to restart httpd.

Andrew Savinykh

@Downgoat probably would help if you could give an example of how to use it? A hello world program in IR along with command line to compile / run it would certainly help

Downgoat

@AndrewSavinykh this should work:

@.str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"
declare i32 @puts(i8* nocapture) nounwind
define i32 @main() {
    %cast210 = getelementptr [13 x i8]* @.str, i64 0, i64 0
    call i32 @puts(i8* %cast210)
    ret i32 0
}

ASCII-only

01:17

@Downgoat how to run

Downgoat

45 mins ago, by Downgoat

IIRC you can just do lli llvmFile.ll

Andrew Savinykh

@Downgoat let me try that

lli: llvmFile.ll:4:41: error: expected comma after getelementptr's type
%cast210 = getelementptr [13 x i8]* @.str, i64 0, i64 0

@Downgoat did you try running that yourself?

Downgoat

oh oops, sorry, try this:

@str = internal constant [14 x i8] c"Hello, world!\00"
declare i32 @puts(i8*)
define i32 @main()
{
  call i32 @puts( i8* getelementptr ([14 x i8], [14 x i8]* @str, i32 0,i32 0))
  ret i32 0
}

ASCII-only

@Downgoat ew brace on new line

Downgoat

sorry

ASCII-only

01:24

@Downgoat llvm doesn't need linkng to libc to do puts?

Downgoat

no

idk why i guess magick

either lli automagically links or some OS thing

Andrew Savinykh

01:39

@Downgoat yep that seemed to work

Should be easy enough to add if it's not of the ones that require internet access just to run

Andrew Savinykh

01:52

@ASCII-only well that's how brackets should be. They should line up and match

4 hours later…

ATaco

06:03

user image

That's proper matching up of brackets ;)

feersum

06:36

Just wondering, does @Dennis want TIO to be used mostly by PPCG community, or for all kinds of random people to use it?

With the LLVM getelementptr thing, the syntax changed for several commands somewhere between 3.7 and 3.9.

So I have a bunch of commands in my compiler that have to conditionally change on the LLVM target version :X

Andrew Savinykh

07:17

@feersum what's the difference from your perspective?

feersum

07:51

@AndrewSavinykh Whether it would be good to share it with people or not.

Andrew Savinykh

@feersum right. I can't speak for Dennis, but I'd be really surprised if he was against

feersum

Well I don't know if Dennis wants to quit his day job to build a scalable version of TIO :P

Andrew Savinykh

@feersum It's pretty good right now. The load is not very high, and Dennis just finished test implementation of a system that allows easy load balancing between arbitrary number of arenas

Of course each new arena costs, but it's not prohibitive yet

Andrew Savinykh

08:15

and donations are always welcome ;)

6 hours later…

Phoenix

14:11

@Dennis feature-request: A setting to run the code file through the C preprocessor, regardless of the actual language being used, and the ability to specify flags for the preprocessor.

(I want to be able to #include .input.tio)

Nick Clifford

@Dennis could you pull Ohm?

1 hour later…

Phoenix

15:25

language-request: JWasm Assembly

Dennis

15:45

@feersum Nothing would make me happier.

@NickClifford Done.

@Phoenix That sounds way too specific.

Phoenix

Aww

I want to preprocess my C# ;(

CalculatorFeline

16:21

XD

But wouldn't that mess up any language that uses #-comments? :(

Phoenix

That's why I suggested it be a setting

As far as I can tell, there isn't actually a tool anywhere online that will run the C preprocessor on arbitrary text.

Dennis

16:42

You could always wrap pre-processing and compilation in a Bash script.

Phoenix

I've been trying. I can't figure out which argument it's supposed to be.

3 hours later…

Martin Ender

19:20

@Dennis I think this is a language request: codegolf.stackexchange.com/a/120123/8478 (not sure whether you were already aware of it)

Dennis

@MartinEnder Hadn't seen the post, but @Phoenix already requested Standard ML.

Martin Ender

yeah, that's kinda what I meant. just thought I'd let you know in case no one had requested it yet.

Dennis

Lots of stuff piled up in the last week. :/

But thanks for the heads-up. :)

1 hour later…

carusocomputing

20:27

You've sent €88.93 EUR to [email protected] - I didn't know you weren't located in the USA... I'm going to get jailed by Trump for supporting communist values.

Andrew Savinykh

@carusocomputing Is everything outside USA falls under "communist values"?

Anonymous

@carusocomputing Wow, that's really generous! You're awesome!

carusocomputing

@mego generous is dedicating your time to something as cool as TIO.

@Andrew in trumps eyes? Yes.

Andrew Savinykh

@carusocomputing @Dennis definitely deserves it but you too deserve our warmest thanks

carusocomputing

Money is always easy to come by... Time is not.

Anonymous

20:33

I wish I wasn't in the opposite situation right now :P

carusocomputing

21:01

@mego if you're young, time is infinite 😝.

And if you live in Ohio, I'd be glad to get you an interview, we need people who actually are interested in programming theory, not just money.

Anonymous

Unfortunately no, I live in Texas, and am looking to move to Seattle soon for a job there

Andrew Savinykh

21:23

@Downgoat can it (llvm, not your code) take input?

Andrew Savinykh

22:02

@Dennis PR for llvm github.com/TryItOnline/tryitonline/pull/11 @Downgoat

Downgoat

22:15

@AndrewSavinykh yeah, passed through stdin would be optimal way to receive imo

Andrew Savinykh

@Downgoat tio2.tryitonline.nz/nexus/…

Note that this is not TIO (yet)

re:input, if I don't have an example of how to take input I cannot test it. but perhaps you can now with the link above (if you'd like to)

1 hour later…

Dennis

23:45

@carusocomputing Thank you so much! :)

Also, Paraguay is pretty right-wing. Not sure what Trump thinks about it, but we're definitely not communists. ;)

@AndrewSavinykh Nice! I'll try to merge that tonight.

ASCII-only

@Dennis Can you pull Charcoal? Thanks!

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