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Coverage mapping data is not referenced by runtime, and they won't be dumped into profile data. There is no need to allocate memory for covmap sections. A good side effect of this change is that the coverage map data won't be mistakenly garbage collected by the linker (for Gold linker only, BFD linker has an issue where the a bug is filed). Tested with clang build with instrumentation and -fcoverage-mapping and linker GC. The size of covmap section is ~17.6M so the text segment size will be reduced by this amount with this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257781 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.