8183552: Move align functions to align.hpp
Reviewed-by: stuefe, pliden

8178499: Remove _ptr_ and _size_ infixes from align functions
Reviewed-by: rehn, tschatzl

8144663: Invalid constraints in memset_with_concurrent_readers_sparc.cpp inline assembly
Summary: Fix constraints and signedness in comparisons
Reviewed-by: kbarrett

8139086: Solaris/Sparc slowdebug build fails for memset_with_concurrent_readers.cpp
Reviewed-by: dcubed, kbarrett, coleenp

8131330: G1CollectedHeap::verify_dirty_young_list fails with assert
Summary: Use assembly loop to avoid compiler optimization into memset
Reviewed-by: ecaspole, tschatzl