[PATCH] D48262: [WebAssembly] Add more utility functions

[Heejin Ahn via Phabricator via llvm-commits]

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

Add more utility functions that will be used in EH-related passes
(ExceptionPrepare and CFGStackify). Also change `LoopBottom` function to
`getBottom` and uses templates to be able to handle other classes as
well, which will be used in CFGSort later.


Repository:
  rL LLVM

https://reviews.llvm.org/D48262

Files:
  lib/Target/WebAssembly/WebAssemblyCFGSort.cpp
  lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
  lib/Target/WebAssembly/WebAssemblyUtilities.cpp
  lib/Target/WebAssembly/WebAssemblyUtilities.h

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