[LLVMdev] Comparison of Alias Analysis in LLVM

[Chris Lattner]

On Jan 2, 2012, at 9:42 PM, Jianzhou Zhao wrote:

> Hi,
> 
> Chapter 4 in http://llvm.org/pubs/2005-05-04-LattnerPHDThesis.html
> compares the precision of alias analysis in LLVM at that time. Does
> the latest LLVM still follow the similar results? I was also wondering
> how the globalmodred-aa and scev-aa that were not discussed in the PhD
> thesis are compared with others? Thanks and Happy New Year!

Hi Jianzhou,

That study is over 7 years old now.  So much has changed that the results would surely have to be rerun.  Among other things, SRoA is more aggressive than in those days, so many more of the "easy" alias pairs are already resolved.

-Chris