Re: [Chapel-gsoc] GSoC 2018 Compiling Chapel with LLVM/Polly

[SAHIL G. Y. <cs1...@ii...>]

Sir,

Thanks for the response. Michael Ferguson (cc'ed in this mail) has already
given a way to generate LLVM-IR's from chapel programs.It involves
converting chapel code to C code and saving it in a directory(using
--savec) and applying --llvm flag on top of it.

On other hand, I have another doubt in Polly. While going through
Scopdetection.cpp, the initial description mentioned "canonical subregions
of a region in SCoP". What is meant by the word "canonical" in "canonical
subregion"?

Regards
Sahil Yerawar

‌
On other hand, I do have some doubts
On Mon, Mar 19, 2018 at 9:57 PM Michael Kruse <ll...@me...> wrote:

> 2018-03-19 14:52 GMT+01:00 SAHIL GIRISH YERAWAR <cs1...@ii...
> >:
> > Hi,
> >
> > I have generated IR files for test10d() and test80d() functions present
> in
> > the attached chpl code.
> >
> > On running opt on it, it gives a parser error of the form "base element
> of
> > getelementptr must be sized" at lines 155 and 141 of test10d() and
> test80d()
> > respectively. These files are attached with this mail.
> >
> > I am of the opinion that since these aggregate types are initially
> defined
> > outside the scope of the functions, we need to work on IR of the whole
> > program itself.
>
> I agree on your assessment. Metadata is also missing. Only LLVM
> "modules" can be exported into .ll files and imported again. Single
> functions can be just "dumps" (unless it is module where all other
> functions have been removed). Modules typically start with e.g.:
>
> target datalayout = "..."
> target triple = "x86_64-linux-gnu"
>
> > However, I am not able to find proper flags which can enable
> > dumping of whole program's IR. Is there any such compiler flag which
> enables
> > this?
>
> Have you tried removing the --llvm-print-ir=test10d option? I don't
> know which options the Chapel compiler supports, there should be one
> to exporte enitre modules. Is there a "chpl --help"?
>
> Michael
>
-- 
Thanking you
Sahil Yerawar
Department of Computer Science
IIT Hyderabad