[PATCH] D49651: [COFF] Fix assembly output of comdat sections without an attached symbol

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo created this revision.
mstorsjo added reviewers: rnk, majnemer.

Since SVN r335286, the .xdata sections are produced without an attached symbol, which requires using a different syntax when  printing assembly output.

Instead of the usual syntax of '.section <name>,"dr",discard,<symbol>', use '.section <name>,"dr"' + '.linkonce discard' (which is what GCC uses for all assembly output).

This fixes PR38254.


Repository:
  rL LLVM

https://reviews.llvm.org/D49651

Files:
  lib/MC/MCSectionCOFF.cpp
  test/CodeGen/X86/mingw-comdats-xdata.ll

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