d4                 51 gc/mach_dep.c      move.l  d4,(sp)
d4                199 gc/mach_dep.c                PushMacReg(d4);
d4               1092 gc/tests/test.c     GC_descr d4 = GC_make_descriptor(bm_huge, 320);
d4               1093 gc/tests/test.c     GC_word * x = (GC_word *)GC_malloc_explicitly_typed(2000, d4);