[PATCH] D15344: [WebAssembly] WIP for SP lowering.

[Derek Schuff via llvm-commits]

dschuff created this revision.
dschuff added reviewers: sunfish, jfb.
dschuff added a subscriber: llvm-commits.
Herald added subscribers: dschuff, jfb.

Includes change to PrologEpilogInserter.
In this form SP stays as a physical register in MI but is converted to a
global when lowered to MC.
WDYT?

http://reviews.llvm.org/D15344

Files:
  lib/CodeGen/PrologEpilogInserter.cpp
  lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
  lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
  lib/Target/WebAssembly/WebAssemblyISelLowering.h
  lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
  lib/Target/WebAssembly/WebAssemblyMCInstLower.h
  lib/Target/WebAssembly/WebAssemblyRegisterInfo.cpp
  lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
  test/CodeGen/WebAssembly/userstack.ll

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