tree 5c0f2dccd43fc848276106e732d349fd730c5519
parent 5a4174c5401ebc6f6d2576b751b45e374e3c9d37
author Tim Shen <timshen91@gmail.com> 1529545747 +0000
committer Tim Shen <timshen91@gmail.com> 1529545747 +0000

[SCEV] Improve zext(A /u B) and zext(A % B)

Summary:
Try to match udiv and urem patterns, and sink zext down to the leaves.

I'm not entirely sure why some unrelated tests change, but the added <nsw>s seem right.

Reviewers: sanjoy

Subscribers: jlebar, hiraditya, bixia, llvm-commits

Differential Revision: https://reviews.llvm.org/D48338

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335197 91177308-0d34-0410-b5e6-96231b3b80d8