------- Comment #2 from marc dot mengel at gmail dot com 2010-06-10 16:43 ------- This could be a disaster if floating point exceptions are enabled, as it would trigger an exception whenever some part of the block was an invalid floating point number. One would at least need to save/restore the floating point exception flags around such a block copy.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29969