8201367: assert(current != first_mem) failed: corrupted memory graph in superword code
Summary: don't rely on the RPO order to find the "first" and "last" loads of the pack
Reviewed-by: kvn
^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.src-rev$
^.jib/
\.DS_Store
\.metadata/
\.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
.*/JTreport/.*
.*/JTwork/.*