[PATCH] D105162: Avoid misleading line table when Localizer sinks an instruction to another basic block

[Adrian Prantl via Phabricator via llvm-commits]

aprantl created this revision.
aprantl added reviewers: vsk, aemerson, dsanders.
Herald added a subscriber: hiraditya.
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This patch attaches the source location of the insertion point to the localized instruction, if it comes from a different basic block. Preserving the original source location would create a misleading line table.

Cf. https://www.llvm.org/docs/HowToUpdateDebugInfo.html#when-to-drop-an-instruction-location

rdar://78489600


https://reviews.llvm.org/D105162

Files:
  llvm/lib/CodeGen/GlobalISel/Localizer.cpp
  llvm/test/DebugInfo/MIR/AArch64/localizer.mir

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