[PATCH] D9180: [TargetTransformInfo][NFCI] Add TargetTransformInfo::isZExtFree.

[Sanjoy Das via llvm-commits]

sanjoy added a comment.

In http://reviews.llvm.org/D9180#160021, @mcrosier wrote:

> LGTM.  Probably doesn't need to be said, but please make sure the followup commit includes a test case that exercise this code.


I reverted this in r252948 because currently it is unexercised and untested.  The change to LSR it was supposed to support was reverted a while back (it was buggy), and I don't think I'll have time to check in a fixed version of that LSR change anytime soon.


Repository:
  rL LLVM

http://reviews.llvm.org/D9180