MARK_BITS_PER_HBLK  261 gc/include/private/gc_pmark.h     GC_ASSERT(displ >= 0 && displ < MARK_BITS_PER_HBLK); \
MARK_BITS_PER_HBLK  661 gc/include/private/gc_priv.h #   define MARK_BITS_SZ (MARK_BITS_PER_HBLK/2)
MARK_BITS_PER_HBLK  667 gc/include/private/gc_priv.h #   define MARK_BITS_SZ (MARK_BITS_PER_HBLK/CPP_WORDSZ)