en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/CodeGenCXX/Inputs/profile-remap.samples#8654ae52 Add a flag to remap manglings when reading profile data information.This can be used to preserve profiling information across codebasechanges that have widespread impact on mangled names, but across whichmost profiling data should still be usable. For example, when switchingfrom libstdc++ to libc++, or from the old libstdc++ ABI to the new ABI,or even from a 32-bit to a 64-bit build.The user can provide a remapping file specifying parts of mangled namesthat should be treated as equivalent (eg, std::__1 should be treated asequivalent to std::__cxx11), and profile data will be treated asapplying to a particular function if its name is equivalent to the nameof a function in the profile data under the provided equivalences. Seethe documentation change for a description of how this is configured.Remapping is supported for both sample-based profiling and instructionprofiling. We do not support remapping indirect branch targetinformation, but all other profile data should be remappedappropriately.Support is only added for the new pass manager. If someone wants to alsoadd support for this for the old pass manager, doing so should bestraightforward.llvm-svn: 344199 List of files: /llvm-project-15.0.7/clang/test/CodeGenCXX/Inputs/profile-remap.samples Wed, 10 Oct 2018 23:13:35 +0000 Richard Smith <richard-llvm@metafoo.co.uk>