tree 20f899ddf18e611358a1eb3e797380580b89bd5f
parent aba588d701fd58b20a71bcefb2b1b79a185d6253
author Amaury Sechet <deadalnix@gmail.com> 1519386642 +0000
committer Amaury Sechet <deadalnix@gmail.com> 1519386642 +0000

[DAGCOmbine] Ensure that (brcond (setcc ...)) is handled in a canonical manner.

Summary:
There are transformation that change setcc into other constructs, and transform that try to reconstruct a setcc from the brcond condition. Depending on what order these transform are done, the end result differs.

Most of the time, it is preferable to get a setcc as a brcond argument (and this is why brcond try to recreate the setcc in the first place) so we ensure this is done every time by also doing it at the setcc level when the only user is a brcond.

Reviewers: spatel, hfinkel, niravd, craig.topper

Subscribers: nhaehnle, llvm-commits

Differential Revision: https://reviews.llvm.org/D41235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325892 91177308-0d34-0410-b5e6-96231b3b80d8