On alphaev6-unknown-linux-gnu with --enable checking on today's CVS sources, I get the following: ./genattr ../../gcc/config/alpha/alpha.md > tmp-attr.h genattr: RTL check: access of elt 7 of `define_insn' with last elt 4 genattr: Internal compiler error in `process_rtx', at gensupport.c:212 Brad Lucier