[LLVMdev] GVN PRE algorithms in LLVM

Rahul Jain 1989.rahuljain at gmail.com
Tue Mar 10 04:25:52 PDT 2015

This landed in my spam folder so resending it to the list!
On Mar 9, 2015 9:56 PM, "Rakshit Singla" <cs12b1029 at iith.ac.in> wrote:

> Hello everyone
> I am Rakshit Singla, a third year undergrad at IIT Hyderabad, India. I
> finished a basic compilers course last semester and am currently doing a
> compiler optimizations course.  I have been exploring LLVM for the past few
> months (wrote a front-end for the Classroom Object Oriented Language and
> have been studying pieces of code.) I would like to work with LLVM and
> contribute to the community.
> For starters, I have a couple of questions.
> What is the GVN algorithm used in LLVM? Is it the one by Alpern, Wegman,
> Zadeck or Briggs, Cooper or some other?
> How much of PRE is done in LLVM? Are any of the well known algorithms for
> PRE used in LLVM?
> Thanks and regards,
> Rakshit Singla
> Third Year Undergrad
> Indian Institute of Technology Hyderabad
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