[llvm-commits] Flag to print vectorized loops

[Hal Finkel]

----- Original Message -----
> From: "Sebastian Pop" <spop at codeaurora.org>
> To: "Nadav Rotem" <nrotem at apple.com>, llvm-commits at cs.uiuc.edu, llvmdev at cs.uiuc.edu
> Sent: Monday, November 26, 2012 5:20:47 PM
> Subject: [llvm-commits] Flag to print vectorized loops
> 
> Hi,
> 
> Nadav Rotem wrote:
> > 
> > On Nov 26, 2012, at 1:46 PM, Sebastian Pop <spop at codeaurora.org>
> > wrote:
> > > It would be a quick and easy contribution to add a flag to print
> > > on stdout the
> > > loops being vectorized.
> > 
> > Okay. I am not sure how chris feels about printing to stdout. We
> > should bring it up on the mailing list.
> 
> Both GCC and ICC have a flag that prints out a message when a loop
> has been
> vectorized.  Would the attached patch be ok to commit?

Sebastian,

In my opinion, what we really need is an interface that the frontend can use to get information from the backend optimizers. Then the frontend can display this information to users in an appropriate way. Furthermore, this information should be structured (we already have a YAML parser, so that might be a good choice), and should probably directly take a Value *, BasicBlock *, Function *, etc. so that the frontend can do the appropriate mapping for the user.

 -Hal

> 
> Thanks,
> Sebastian
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-- 
Hal Finkel
Postdoctoral Appointee
Leadership Computing Facility
Argonne National Laboratory