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05b0f7dc93
The ByteStreamer here wasn't taking account of whether the asm streamer was text based and verbose. Only with that combination should we emit comments. This change makes sure that we only actually convert a Twine to a string using Twine::str() if we need the comment. This saves about 10000 small allocations on a test case involving the verify-use_list-order bitcode going through llc with debug info. Note, this is NFC as the comments would ultimately never be emitted unless required. Reviewed by Duncan Exon Smith and David Blaikie. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237851 91177308-0d34-0410-b5e6-96231b3b80d8