std::set is pretty slow. We generally prefer llvm::StringSet if we don't
need an sorted set.
Differential Revision: https://reviews.llvm.org/D40579
llvm-svn: 319371
These should get initialized in by Driver.cpp based on
command line options.
Also, sort entries.
Differential Revision: https://reviews.llvm.org/D40570
llvm-svn: 319219
This linker backend is still a work in progress but is
enough to link simple programs including linking against
library archives.
Differential Revision: https://reviews.llvm.org/D34851
llvm-svn: 318539