[PATCH] D144800: [DebugInfo] Remove `dbg.addr` from CodeGen r=Orlando,StephenTozer,probinson,rnk

[J. Ryan Stinnett via Phabricator via llvm-commits]

jryans created this revision.
jryans added reviewers: Orlando, StephenTozer, probinson, rnk.
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As part of this work, removing `SDDbgValue::clearIsEmitted` originally added for
`dbg.addr` in 045c67769d7fe577fc38cccb6fb40fd814437447 was attempted, but it
appears some tests for `DBG_INSTR_REF` now depend on that behaviour as well, so
it was kept and comments were updated instead.

Part of `dbg.addr` removal
Discussed in https://discourse.llvm.org/t/what-is-the-status-of-dbg-addr/62898

Depends on D144799 <https://reviews.llvm.org/D144799>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D144800

Files:
  llvm/lib/CodeGen/AssignmentTrackingAnalysis.cpp
  llvm/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/test/DebugInfo/X86/dbg-addr-dse.ll
  llvm/test/DebugInfo/X86/dbg-addr.ll
  llvm/test/DebugInfo/X86/merge-equivalent-ranges.ll

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