how to use bambu with a .ll file

[nikhil...@gmail.com]

Hi,

I am new user to Bambu. I am working on a project which does some transformations on the llvm IR. I want to use this transformed IR (.ll file) as an input to bambu. However, when I do, there are compilation errors. 

Could you please advice on how to use it?

Thanks

[Fabrizio Ferrandi]

Hi,

Thank you very much for considering bambu in your research.

Performing the HLS of a .ll file just requires to pass the .ll file to bambu and to use a Clang/LLVM compiler as front end.

So a typical use could be this one:

bambu filename.ll —compiler=I386_CLANG6

Much depend which clang version you have configured in your system.

In case this is not working with you, I need some further details on the way you bambu and which .ll you used.

Cheers,

Fabrizio

[nikhil ghanathe]

Hello,

Thanks a lot for getting back to me!

I tried out above command and it gives me the following error:

error -> Unexpected file extension: —compiler=I386_CLANG6

I am using a simple C program with two if-else blocks. I am converting the C code to llvm IR using clang before feeding it to bambu. Please find the .c and .ll file attached for your reference. 

Also, I am using the latest version of Bambu and clang 6.0 version

Thanks

[Fabrizio Ferrandi]

Hi,

not sure but it looks like that you have a copy & paste problem.

The option to be passed to bambu is --compiler=I386_CLANG6

minus minus compiler=I386_CLANG6

from the message, I saw a single minus/dash.

Cheers,

Fabrizio

[nikhil ghanathe]

Thanks a lot! it was just a simple copy & paste error :)

I works now

Thanks,

Nikhil