Clarify SCEV comments.
authorAndrew Trick <atrick@apple.com>
Tue, 22 Oct 2013 05:09:40 +0000 (05:09 +0000)
committerAndrew Trick <atrick@apple.com>
Tue, 22 Oct 2013 05:09:40 +0000 (05:09 +0000)
commit78fe4d62fb12fd3d77cac4d26ec1ab2010aace12
treebbbd2f96a8ac725bae011a908e80e4dd2ea7981d
parentfc678719d935ffb893a3e08905f0d00b649f9d4f
Clarify SCEV comments.

We handle for(i=n; i>0; i -= s) by canonicalizing within SCEV to for(i=-n; i<0; i += s).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193147 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Analysis/ScalarEvolution.cpp