This used to be free, copying and moving DebugLocs became expensive after the metadata rewrite. Passing by reference eliminates a ton of track/untrack operations. No functionality change intended. llvm-svn: 272512
llvm-svn: 269900
Summary: This adds the majority of the AVR backend. Reviewers: hfinkel, dsanders, vkalintiris, arsenm Subscribers: dylanmckay Differential Revision: http://reviews.llvm.org/D17906 llvm-svn: 268722