Brian Gesiak ee1fc77541 [Analysis] Support bitreverse in -demanded-bits pass ...

Summary:
* Add a bitreverse case in the demanded bits analysis pass.
* Add tests for the bitreverse (and bswap) intrinsic in the
  demanded bits pass.
* Add a test case to the BDCE tests: that manipulations to
  high-order bits are eliminated once the bits are reversed
  and then right-shifted.

Reviewers: mkuper, jmolloy, hfinkel, trentxintong

Reviewed By: jmolloy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31857

llvm-svn: 300215

2017-04-13 16:44:25 +00:00

..

basic.ll

Port DemandedBits to the new pass manager.

2016-04-18 23:55:01 +00:00

intrinsics.ll

[Analysis] Support bitreverse in -demanded-bits pass

2017-04-13 16:44:25 +00:00