Driver: Handle -Xarch_, including warning for nasty -Xarch_ use cases
we aren't going to support. For example:
  clang -Xarch_i386 -S -Xarch_i386 -o -Xarch_i386 myi386asm.s ...

llvm-svn: 67680
3 files changed
tree: 26ed2fb78772131c7628bf6799b1e2f3c4011bf5
  1. clang/
  2. llvm/