[PATCH] D70384: [DebugInfo] Support for DW_OP_implicit_pointer (for SROA optimization)

[Alok Kumar Sharma via Phabricator via llvm-commits]

alok created this revision.
alok added reviewers: aprantl, probinson, dblaikie, jmorse, jini.susan.george, SouraVX, awpandey.
alok added projects: LLVM, debug-info.
Herald added subscribers: llvm-commits, hiraditya.

This patch (4/N) stems from D69787 <https://reviews.llvm.org/D69787>

  Summary:
    Just invoked salvaging debug info function before deleting the instructions.
  
  Testing:
     - Added unit tests for validation of LLVM IR and object file thru llvm-dwarfdump
     - check-llvm, and an end-to-end test using gnu GDB to debug an optimized
       program (LLDB need to be enhanced to support).
     - check-debuginfo (the debug info integration tests)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70384

Files:
  llvm/lib/Transforms/Scalar/SROA.cpp
  llvm/test/DebugInfo/dwarfdump-implicit_pointer_sroa.c
  llvm/test/DebugInfo/dwarfdump-implicit_pointer_sroa_inline.c
  llvm/test/DebugInfo/implicit_pointer_sroa.c
  llvm/test/DebugInfo/implicit_pointer_sroa_inline.c

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