On big-endian machines it is wrong to do a full width register load followed by a truncating store for the copy, since the load will not place the value in the lower bits.  Probably partial loads/stores can never happen here, but fix it anyway.
On big-endian machines it is wrong to do a full
width register load followed by a truncating
store for the copy, since the load will not place
the value in the lower bits.  Probably partial
loads/stores can never happen here, but fix it
anyway.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@60972 91177308-0d34-0410-b5e6-96231b3b80d8

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