make the rewriter add a #ifndef around the #define of __attribute__.
Without it, there is no reason for a compiler that supports it to
emit the dead static globals that the rewriter labels attribute(used).

llvm-svn: 101149
2 files changed
tree: a4057a36fd19d240f9bf3339c665ae8f94607fb4
  1. clang/
  2. compiler-rt/
  3. llvm/