GC_last_heap_addr  944 gc/alloc.c         if (GC_last_heap_addr == 0 && !((word)space & SIGNB)
GC_last_heap_addr  945 gc/alloc.c             || (GC_last_heap_addr != 0 && GC_last_heap_addr < (ptr_t)space)) {
GC_last_heap_addr  964 gc/alloc.c         GC_prev_heap_addr = GC_last_heap_addr;
GC_last_heap_addr  965 gc/alloc.c         GC_last_heap_addr = (ptr_t)space;