PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.cv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.gv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.dfoutgv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.cv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.gv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
PTR2UV(cx->blk_sub.dfoutgv));