------- Comment #2 from ian at airs dot com 2007-02-28 02:24 ------- The problem is that the bitset_c insn comes before the iorsi3 insn in the MD files. It matches the ior:SI insn with one added clobber. Unfortunately, the added clobber is of a hard reg, and so this is rejected by insn_invalid_p in recog.c.
I don't understand how bitset_c will ever be used in practice. Nothing generates it explicitly. Typical ior:SI insns get passed to recog_memoized which does not add clobbers. I can fix the problem easily enough by moving (include "misc.md") and (include "mac.md") to the end of score.md. I'm not sure how to really test that fix. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30987
