+#define GvXPVGV(gv) ((XPVGV*)SvANY(gv))
+
+
+#if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__INTEL_COMPILER)
+# define GvGP(gv) \
+ (*({GV *const shplep = (GV *) (gv); \
+ assert(SvTYPE(shplep) == SVt_PVGV || SvTYPE(shplep) == SVt_PVLV); \
+ assert(isGV_with_GP(shplep)); \
+ &((shplep)->sv_u.svu_gp);}))
+# define GvFLAGS(gv) \
+ (*({GV *const yaah = (GV *) (gv); \
+ assert(SvTYPE(yaah) == SVt_PVGV || SvTYPE(yaah) == SVt_PVLV); \
+ assert(isGV_with_GP(yaah)); \
+ &(GvXPVGV(yaah)->xpv_cur);}))
+# define GvSTASH(gv) \
+ (*({ GV * const _gv = (GV *) (gv); \
+ assert(isGV_with_GP(_gv)); \
+ assert(SvTYPE(_gv) == SVt_PVGV || SvTYPE(_gv) >= SVt_PVLV); \
+ &(GvXPVGV(_gv)->xnv_u.xgv_stash); \
+ }))
+# define GvNAME_HEK(gv) \
+ (*({ GV * const zzzz = (GV *) (gv); \
+ assert(isGV_with_GP(zzzz)); \
+ assert(SvTYPE(zzzz) == SVt_PVGV || SvTYPE(zzzz) >= SVt_PVLV); \
+ &(GvXPVGV(zzzz)->xiv_u.xivu_namehek); \
+ }))
+# define GvNAME_get(gv) ({ assert(GvNAME_HEK(gv)); HEK_KEY(GvNAME_HEK(gv)); })
+# define GvNAMELEN_get(gv) ({ assert(GvNAME_HEK(gv)); HEK_LEN(GvNAME_HEK(gv)); })
+#else
+# define GvGP(gv) ((gv)->sv_u.svu_gp)
+# define GvFLAGS(gv) (GvXPVGV(gv)->xpv_cur)
+# define GvSTASH(gv) (GvXPVGV(gv)->xnv_u.xgv_stash)
+# define GvNAME_HEK(gv) (GvXPVGV(gv)->xiv_u.xivu_namehek)
+# define GvNAME_get(gv) HEK_KEY(GvNAME_HEK(gv))
+# define GvNAMELEN_get(gv) HEK_LEN(GvNAME_HEK(gv))