------- Comment #12 from steven at gcc dot gnu dot org 2007-11-18 16:05 ------- This is not a smal thing to fix at all.
"Fixing" this involves teaching the compiler that some labels cannot be moved; that these labels are optimization barriers (i.e. no insn can be safely moved up or down across the label); that basic blocks beginning with an addressable label cannot be merged with other basic blocks, duplicated for e.g. unrolling or versioning, or removed if they have become unreachable; and probably many more things. This is not "spoiling" the idea of the extension. You're just using it in a way that the extension is not intended for. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28581
