Reorder a couple of operations in inplace_merge so that we can meet the complexity guidelines mandated by the standard. References PR22427
Reorder a couple of operations in inplace_merge so that we can meet the complexity guidelines mandated by the standard. References PR22427

git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@227808 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx