[PATCH] D94668: [debug-info] [NFC] add isa support for MCStreamer

[ChenZheng via Phabricator via llvm-commits]

shchenz created this revision.
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This is a simple refactor. In some cases, we need to check if a `MCStreamer` pointer is `MCAsmStreamer` or `MCObjectStreamer`, so we can implement some different behaviour in assembly mode and object mode.

For example, we are going to support dwarf for XCOFF. XCOFF assembler will fill the .debug_line or .debug_info length into the final object file, so in assembly mode, compiler should not emit .debug_line or .debug_info length into the section header, but in object mode, we still need that length to make other tools happy.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94668

Files:
  llvm/include/llvm/MC/MCAsmStreamer.h
  llvm/include/llvm/MC/MCObjectStreamer.h
  llvm/include/llvm/MC/MCStreamer.h
  llvm/lib/MC/MCAsmStreamer.cpp
  llvm/lib/MC/MCNullStreamer.cpp
  llvm/lib/Object/RecordStreamer.h

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