[PATCH] D35338: Add the -fdestroy-globals flag

[Ian Tessier via Phabricator via cfe-commits]

itessier created this revision.

The -fdestroy-globals flag can be used to disable global variable destructor
registration. It is intended to be used with embedded code that never exits.
Disabling registration allows the linker to garbage collect unused destructors
and vtables.


https://reviews.llvm.org/D35338

Files:
  include/clang/Driver/Options.td
  include/clang/Frontend/CodeGenOptions.def
  lib/CodeGen/CGDeclCXX.cpp
  lib/Driver/ToolChains/Clang.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/Driver/fdestroy-globals.cpp

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