http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49866
--- Comment #3 from Uros Bizjak <ubizjak at gmail dot com> 2011-07-27 12:14:49 UTC --- (In reply to comment #2) > Wouldn't it be safer to just introduce the z constraint and replace all s > constraints with z constraints in *call_insn_operand predicated operands? It depends whether you miss a "s" or not. ;) As said, it is your call...