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cc1c702f62
is. - The problem is that formatted_ostream forces its underlying buffer to be unbuffered, so if some client happens to wrap a formatted_ostream around something, but still use the underlying stream, then we can end up writing on a fully unbuffered output (which was never intended to be unbuffered). - This makes clang (and presumably llvm-gcc) -emit-llvm -S a mere 10x faster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82434 91177308-0d34-0410-b5e6-96231b3b80d8