------- Comment #13 from jakub at gcc dot gnu dot org 2007-10-31 15:08 ------- See md.texi: @cindex @samp{<} in constraint @item @samp{<} A memory operand with autodecrement addressing (either predecrement or postdecrement) is allowed.
And that's for a reason, post_modify here adjusts it by different size than the size of the mode, so it shouldn't be valid < operand. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31507