llvm/lib/TableGen
Benjamin Kramer 04a303b821 Avoid copies of std::strings and APInt/APFloats where we only read from it
As suggested by clang-tidy's performance-unnecessary-copy-initialization.
This can easily hit lifetime issues, so I audited every change and ran the
tests under asan, which came back clean.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272126 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-08 10:01:20 +00:00
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