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edd70802af
There are 2 places where llvm-objcopy creates CompressedSection: For --compress-debug-sections. It might create the compressed section from regular here: https://github.com/llvm-mirror/llvm/blob/master/tools/llvm-objcopy/ELF/ELFObjcopy.cpp#L486 All initially compressed sections are created as CompressedSection during reading the sections from an object: https://github.com/llvm-mirror/llvm/blob/master/tools/llvm-objcopy/ELF/Object.cpp#L1118 Those have DebugCompressionType::None type and a different constructor. Case 1 has the following code in its constructor: if (!zlib::isAvailable()) { CompressionType = DebugCompressionType::None; return; } (https://github.com/llvm-mirror/llvm/blob/master/tools/llvm-objcopy/ELF/Object.cpp#L267) We can never reach that code with because would report an error much earlier: https://github.com/llvm-mirror/llvm/blob/master/tools/llvm-objcopy/CopyConfig.cpp#L480 So the code I am removing is dead. Landing this will address the issue mentioned in https://bugs.llvm.org/show_bug.cgi?id=40886. Differential revision: https://reviews.llvm.org/D59019 llvm-svn: 355503
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