[PATCH] D8484: Allow -gsplit-dwarf for all ELF targets, not just Linux

[Ed Maste via Phabricator via cfe-commits]

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Allowed for all ELF OSes as of

  commit ee957e045f526ce45d24b0f081f277262c3da43d
  Author: Fangrui Song <i at maskray.me>
  Date:   Thu Mar 28 08:24:00 2019 +0000
  
      [Driver] Allow -gsplit-dwarf on ELF OSes other than Linux and Fuchsia
      
      In gcc, -gsplit-dwarf is handled in gcc/gcc.c as a spec
      (ASM_FINAL_SPEC): objcopy --extract-dwo + objcopy --strip-dwo. In
      gcc/opts.c, -gsplit_dwarf has the same semantic of a -g. Except for the
      availability of the external command 'objcopy', nothing precludes the
      feature working on other ELF OSes. llvm doesn't use objcopy, so it doesn't
      have to exclude other OSes.
      
      llvm-svn: 357150


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https://reviews.llvm.org/D8484