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Hi, I am new to the LLVM dev community so forgive a perhaps obvious question. I am looking at bug 17623 which is an LTO/optimizer interaction bug. I am working on a Mac with Xcode installed but have also built the 3.6 LLVM binaries (from a few month old local branch). The default version of “ld” from Apple supports an option “-save-temps” which I believe saves bitcode both before and after the