[PATCH] D56401: [WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify

[Yury Delendik via Phabricator via llvm-commits]

yurydelendik created this revision.
yurydelendik added a reviewer: aheejin.
Herald added subscribers: llvm-commits, sunfish, jgravelle-google, sbc100, dschuff.

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.


Repository:
  rL LLVM

https://reviews.llvm.org/D56401

Files:
  lib/Target/WebAssembly/WebAssemblyRegStackify.cpp
  test/DebugInfo/WebAssembly/dbg-value-move-reg-stackify.mir

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