commit bb3d0e960a93c1b140b7322a306bb5b908a3650e
author Yury Delendik <ydelendik@mozilla.com> Tue Jan 15 18:14:12 2019 +0000
committer Yury Delendik <ydelendik@mozilla.com> Tue Jan 15 18:14:12 2019 +0000
tree 81332a1a606db67d95340b5e82af98f8ddc0a4a5
parent 2ff9c4575f25d7a7c34a6ac3e379f95ab70beb6a

[WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify

Summary:
As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch
adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs.

Reviewers: aheejin

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

Differential Revision: https://reviews.llvm.org/D56401

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351216 91177308-0d34-0410-b5e6-96231b3b80d8