[PATCH] D47529: [BranchFolding] Fix live-in's when hoisting code

[Karl-Johan Karlsson via Phabricator via llvm-commits]

Ka-Ka created this revision.

When the branch folder hoist code into a predecessor it adjust live-in's
in the blocks it hoist code from. However it fail to handle hoisted code
that contain a defed register that originally is live-in in the block
through a super register.

This is fixed by replacing the live-in handling code with calls to
utility functions in LivePhysRegs.


Repository:
  rL LLVM

https://reviews.llvm.org/D47529

Files:
  include/llvm/CodeGen/LivePhysRegs.h
  lib/CodeGen/BranchFolding.cpp
  test/CodeGen/SystemZ/branch-folder-hoist-livein.mir
  test/CodeGen/X86/tail-call-conditional.mir

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