HBLK_IS_FREE      190 gc/allchblk.c  	    if (HBLK_IS_FREE(hhdr)) {
HBLK_IS_FREE      313 gc/allchblk.c          if(HBLK_IS_FREE(phdr)) {
HBLK_IS_FREE      322 gc/allchblk.c        if (HBLK_IS_FREE(phdr) && (ptr_t)p + phdr -> hb_sz == (ptr_t)h) {
HBLK_IS_FREE      345 gc/allchblk.c        GC_ASSERT(nexthdr == 0 || !HBLK_IS_FREE(nexthdr) || !IS_MAPPED(nexthdr));
HBLK_IS_FREE      346 gc/allchblk.c        GC_ASSERT(prev == 0 || !HBLK_IS_FREE(prevhdr) || !IS_MAPPED(prevhdr));
HBLK_IS_FREE      408 gc/allchblk.c  	  if (0 != nexthdr && HBLK_IS_FREE(nexthdr)) {
HBLK_IS_FREE      800 gc/allchblk.c        if (HBLK_IS_FREE(hhdr)) {
HBLK_IS_FREE      812 gc/allchblk.c        if(0 != nexthdr && HBLK_IS_FREE(nexthdr) && IS_MAPPED(nexthdr)) {
HBLK_IS_FREE     2855 gc/os_dep.c    	    if (HBLK_IS_FREE(hhdr)) {