Summary:
This adds an option -gsplit-dwarf=<arg>. LLVM can create .dwo files in the given directory
during the implicit ThinLTO link stage.
Reviewers: tejohnson, dblaikie, pcc
Reviewed By: pcc
Subscribers: steven_wu, aprantl, JDevlieghere, yunlian, probinson, mehdi_amini, inglorion, cfe-commits
Differential Revision: https://reviews.llvm.org/D44788
llvm-svn: 335546
Yunlian Jiang