tree 1a06df8b4a0d228af15b41061f140af250b0302f
parent 1720133d5c8c34b2854e7dacbc3ffa1cbf6e50e2
author Heejin Ahn <aheejin@gmail.com> 1546910712 +0000
committer Heejin Ahn <aheejin@gmail.com> 1546910712 +0000

[WebAssembly] Move CFG-changing passes before RegStackify

Summary:
FixIrreducibleControlFlow and LateEHPrepare both possibly modify CFG and
create new registers. There seems to be no reason these passes go after
register-related optimization passes (PrepareForLiveIntervals,
OptimizeLiveIntervals, StoreResults, RegStackify, and RegColoring), and
this also possibly create new optimization opportunities. I think we
should put all current and future optimization passes before RegStackify
(and related passes) unless there's a reason not to.

Reviewers: kripken

Subscribers: dschuff, sbc100, sunfish, jgravelle-google, llvm-commits

Differential Revision: https://reviews.llvm.org/D56356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350596 91177308-0d34-0410-b5e6-96231b3b80d8