[PATCH] D29578: Propagate debug info for Phi node in SSAUpdater

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
Herald added a subscriber: aprantl.

Phi nodes are created in the SSAUpdater, however debug info is not updated causing incorrect values after transformations like loop rotation. This patch inserts a new call to dbg.value for each variable operand of the phi that has debug metadata attached.


https://reviews.llvm.org/D29578

Files:
  include/llvm/Transforms/Utils/SSAUpdaterImpl.h
  lib/CodeGen/MachineSSAUpdater.cpp
  lib/Transforms/Utils/SSAUpdater.cpp
  test/Transforms/Util/phi-dbgvalue.ll

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