[LLVMdev] SCEV Alias Analysis

Raphael Ernani Rodrigues raphael at dcc.ufmg.br
Thu Apr 30 05:45:09 PDT 2015


Dear LLVMers,

I am looking into the passes that clang uses by default (using only the
flags -O0, -O1, -O2, -O3) and I noticed that the pass scev-aa
(ScalarEvolution-based Alias Analysis) is not being used in any of those
options.The pass scev, however, is executed with the optimization levels
-O1, -O2, and -O3.

Does anybody know the reason why scev-aa is not included? Does it make the
compilation too slow? Is the pass buggy?

Thanks in advance,

Raphael Ernani Rodrigues
PhD student, University of Alberta
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150430/abfc12f3/attachment.html>


More information about the llvm-dev mailing list