It covers the following line with a test: https://github.com/llvm-mirror/lld/blob/master/ELF/OutputSections.cpp#L383 llvm-svn: 339348
This is PR30386, SORT_BY_INIT_PRIORITY is a keyword can be used to sort sections by numerical value of the GCC init_priority attribute encoded in the section name. Differential revision: https://reviews.llvm.org/D24611 llvm-svn: 281646