This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Remove length magic on scalars
[perl5.git] / proto.h
diff --git a/proto.h b/proto.h
index 84bfbf4..55c4d56 100644 (file)
--- a/proto.h
+++ b/proto.h
@@ -23,13 +23,22 @@ PERL_CALLCONV int   Perl_Gv_AMupdate(pTHX_ HV* stash, bool destructing)
        assert(stash)
 
 PERL_CALLCONV const char *     Perl_PerlIO_context_layers(pTHX_ const char *mode);
+PERL_CALLCONV void*    Perl_Slab_Alloc(pTHX_ size_t sz)
+                       __attribute__malloc__
+                       __attribute__warn_unused_result__;
+
+PERL_CALLCONV void     Perl_Slab_Free(pTHX_ void *op)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_SLAB_FREE     \
+       assert(op)
+
 PERL_CALLCONV bool     Perl__is_utf8__perl_idstart(pTHX_ const U8 *p)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT__IS_UTF8__PERL_IDSTART        \
        assert(p)
 
-PERL_CALLCONV UV       Perl__to_uni_fold_flags(pTHX_ UV c, U8 *p, STRLEN *lenp, const bool flags)
+PERL_CALLCONV UV       Perl__to_uni_fold_flags(pTHX_ UV c, U8 *p, STRLEN *lenp, const U8 flags)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 #define PERL_ARGS_ASSERT__TO_UNI_FOLD_FLAGS    \
@@ -129,6 +138,13 @@ PERL_CALLCONV void Perl_av_extend(pTHX_ AV *av, I32 key)
 #define PERL_ARGS_ASSERT_AV_EXTEND     \
        assert(av)
 
+PERL_CALLCONV void     Perl_av_extend_guts(pTHX_ AV *av, I32 key, SSize_t *maxp, SV ***allocp, SV ***arrayp)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4)
+                       __attribute__nonnull__(pTHX_5);
+#define PERL_ARGS_ASSERT_AV_EXTEND_GUTS        \
+       assert(maxp); assert(allocp); assert(arrayp)
+
 PERL_CALLCONV SV**     Perl_av_fetch(pTHX_ AV *av, I32 key, I32 lval)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -303,12 +319,6 @@ PERL_CALLCONV OP * Perl_ck_bitop(pTHX_ OP *o)
 #define PERL_ARGS_ASSERT_CK_BITOP      \
        assert(o)
 
-PERL_CALLCONV OP *     Perl_ck_chdir(pTHX_ OP *o)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_CK_CHDIR      \
-       assert(o)
-
 PERL_CALLCONV OP *     Perl_ck_cmp(pTHX_ OP *o)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -626,26 +636,27 @@ PERL_CALLCONV OP *        Perl_coresub_op(pTHX_ SV *coreargssv, const int code, const i
        assert(coreargssv)
 
 PERL_CALLCONV PERL_CONTEXT*    Perl_create_eval_scope(pTHX_ U32 flags);
-PERL_CALLCONV void     Perl_croak(pTHX_ const char* pat, ...)
+PERL_CALLCONV_NO_RET void      Perl_croak(pTHX_ const char* pat, ...)
                        __attribute__noreturn__
                        __attribute__format__null_ok__(__printf__,pTHX_1,pTHX_2);
 
-PERL_CALLCONV void     Perl_croak_no_modify(pTHX)
+PERL_CALLCONV_NO_RET void      Perl_croak_no_modify(pTHX)
                        __attribute__noreturn__;
 
-PERL_CALLCONV void     Perl_croak_sv(pTHX_ SV *baseex)
+PERL_CALLCONV_NO_RET void      Perl_croak_sv(pTHX_ SV *baseex)
                        __attribute__noreturn__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_CROAK_SV      \
        assert(baseex)
 
-PERL_CALLCONV void     Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params)
+PERL_CALLCONV_NO_RET void      Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params)
                        __attribute__noreturn__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_CROAK_XS_USAGE        \
        assert(cv); assert(params)
 
+PERL_CALLCONV regexp_engine const *    Perl_current_re_engine(pTHX);
 PERL_CALLCONV const char *     Perl_custom_op_desc(pTHX_ const OP *o)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -680,9 +691,20 @@ PERL_CALLCONV CV*  Perl_cv_clone(pTHX_ CV* proto)
 #define PERL_ARGS_ASSERT_CV_CLONE      \
        assert(proto)
 
+PERL_CALLCONV CV*      Perl_cv_clone_into(pTHX_ CV* proto, CV *target)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_CV_CLONE_INTO \
+       assert(proto); assert(target)
+
 PERL_CALLCONV SV*      Perl_cv_const_sv(pTHX_ const CV *const cv)
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV void     Perl_cv_forget_slab(pTHX_ CV *cv)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_CV_FORGET_SLAB        \
+       assert(cv)
+
 PERL_CALLCONV void     Perl_cv_get_call_checker(pTHX_ CV *cv, Perl_call_checker *ckfun_p, SV **ckobj_p)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -754,7 +776,7 @@ PERL_CALLCONV OP*   Perl_die_sv(pTHX_ SV *baseex)
 #define PERL_ARGS_ASSERT_DIE_SV        \
        assert(baseex)
 
-PERL_CALLCONV void     Perl_die_unwind(pTHX_ SV* msv)
+PERL_CALLCONV_NO_RET void      Perl_die_unwind(pTHX_ SV* msv)
                        __attribute__noreturn__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_DIE_UNWIND    \
@@ -893,7 +915,7 @@ PERL_CALLCONV I32   Perl_do_trans(pTHX_ SV* sv)
 #define PERL_ARGS_ASSERT_DO_TRANS      \
        assert(sv)
 
-PERL_CALLCONV UV       Perl_do_vecget(pTHX_ SV* sv, I32 offset, I32 size)
+PERL_CALLCONV UV       Perl_do_vecget(pTHX_ SV* sv, SSize_t offset, int size)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_DO_VECGET     \
        assert(sv)
@@ -1022,6 +1044,9 @@ PERL_CALLCONV void        Perl_finalize_optree(pTHX_ OP* o)
 PERL_CALLCONV CV*      Perl_find_runcv(pTHX_ U32 *db_seqp)
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV CV*      Perl_find_runcv_where(pTHX_ U8 cond, IV arg, U32 *db_seqp)
+                       __attribute__warn_unused_result__;
+
 PERL_CALLCONV SV*      Perl_find_rundefsv(pTHX);
 PERL_CALLCONV SV*      Perl_find_rundefsv2(pTHX_ CV *cv, U32 seq)
                        __attribute__nonnull__(pTHX_1);
@@ -1601,6 +1626,7 @@ PERL_CALLCONV void        Perl_init_argv_symbols(pTHX_ int argc, char **argv)
 #define PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS     \
        assert(argv)
 
+PERL_CALLCONV void     Perl_init_constants(pTHX);
 PERL_CALLCONV void     Perl_init_dbargs(pTHX);
 PERL_CALLCONV void     Perl_init_debugger(pTHX);
 PERL_CALLCONV int      Perl_init_i18nl10n(pTHX_ int printwarn);
@@ -1660,6 +1686,10 @@ PERL_CALLCONV bool       Perl_is_uni_ascii_lc(pTHX_ UV c)
                        __attribute__warn_unused_result__
                        __attribute__pure__;
 
+PERL_CALLCONV bool     Perl_is_uni_blank(pTHX_ UV c)
+                       __attribute__warn_unused_result__
+                       __attribute__pure__;
+
 PERL_CALLCONV bool     Perl_is_uni_cntrl(pTHX_ UV c)
                        __attribute__warn_unused_result__
                        __attribute__pure__;
@@ -1740,64 +1770,16 @@ PERL_CALLCONV bool      Perl_is_uni_xdigit_lc(pTHX_ UV c)
                        __attribute__warn_unused_result__
                        __attribute__pure__;
 
-PERL_CALLCONV bool     Perl_is_utf8_X_L(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_L   \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_LV(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_LV  \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_LVT(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_LVT \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_LV_LVT_V(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_LV_LVT_V    \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_T(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_T   \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_V(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_V   \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_begin(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_BEGIN       \
-       assert(p)
-
 PERL_CALLCONV bool     Perl_is_utf8_X_extend(pTHX_ const U8 *p)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_IS_UTF8_X_EXTEND      \
        assert(p)
 
-PERL_CALLCONV bool     Perl_is_utf8_X_non_hangul(pTHX_ const U8 *p)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_NON_HANGUL  \
-       assert(p)
-
-PERL_CALLCONV bool     Perl_is_utf8_X_prepend(pTHX_ const U8 *p)
+PERL_CALLCONV bool     Perl_is_utf8_X_regular_begin(pTHX_ const U8 *p)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_IS_UTF8_X_PREPEND     \
+#define PERL_ARGS_ASSERT_IS_UTF8_X_REGULAR_BEGIN       \
        assert(p)
 
 PERL_CALLCONV bool     Perl_is_utf8_alnum(pTHX_ const U8 *p)
@@ -1818,6 +1800,12 @@ PERL_CALLCONV bool       Perl_is_utf8_ascii(pTHX_ const U8 *p)
 #define PERL_ARGS_ASSERT_IS_UTF8_ASCII \
        assert(p)
 
+PERL_CALLCONV bool     Perl_is_utf8_blank(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_IS_UTF8_BLANK \
+       assert(p)
+
 PERL_CALLCONV STRLEN   Perl_is_utf8_char(const U8 *s)
                        __attribute__deprecated__
                        __attribute__nonnull__(1);
@@ -1913,7 +1901,7 @@ PERL_CALLCONV bool        Perl_is_utf8_string(const U8 *s, STRLEN len)
 #define PERL_ARGS_ASSERT_IS_UTF8_STRING        \
        assert(s)
 
-/* PERL_CALLCONV bool  Perl_is_utf8_string_loc(const U8 *s, STRLEN len, const U8 **p)
+/* PERL_CALLCONV bool  Perl_is_utf8_string_loc(const U8 *s, STRLEN len, const U8 **ep)
                        __attribute__nonnull__(1); */
 #define PERL_ARGS_ASSERT_IS_UTF8_STRING_LOC    \
        assert(s)
@@ -2025,6 +2013,12 @@ PERL_CALLCONV int        Perl_magic_clear_all_env(pTHX_ SV* sv, MAGIC* mg)
 #define PERL_ARGS_ASSERT_MAGIC_CLEAR_ALL_ENV   \
        assert(sv); assert(mg)
 
+PERL_CALLCONV int      Perl_magic_cleararylen_p(pTHX_ SV* sv, MAGIC* mg)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_MAGIC_CLEARARYLEN_P   \
+       assert(sv); assert(mg)
+
 PERL_CALLCONV int      Perl_magic_clearenv(pTHX_ SV* sv, MAGIC* mg)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -2060,6 +2054,13 @@ PERL_CALLCONV int        Perl_magic_clearsig(pTHX_ SV* sv, MAGIC* mg)
 #define PERL_ARGS_ASSERT_MAGIC_CLEARSIG        \
        assert(sv); assert(mg)
 
+PERL_CALLCONV int      Perl_magic_copycallchecker(pTHX_ SV* sv, MAGIC *mg, SV *nsv, const char *name, I32 namlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+#define PERL_ARGS_ASSERT_MAGIC_COPYCALLCHECKER \
+       assert(sv); assert(mg); assert(nsv)
+
 PERL_CALLCONV void     Perl_magic_dump(pTHX_ const MAGIC *mg);
 PERL_CALLCONV int      Perl_magic_existspack(pTHX_ SV* sv, const MAGIC* mg)
                        __attribute__nonnull__(pTHX_1)
@@ -2151,12 +2152,6 @@ PERL_CALLCONV int        Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg)
 #define PERL_ARGS_ASSERT_MAGIC_KILLBACKREFS    \
        assert(sv); assert(mg)
 
-PERL_CALLCONV U32      Perl_magic_len(pTHX_ SV* sv, MAGIC* mg)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_MAGIC_LEN     \
-       assert(sv); assert(mg)
-
 PERL_CALLCONV SV*      Perl_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, U32 flags, U32 argc, ...)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -2183,7 +2178,7 @@ PERL_CALLCONV int Perl_magic_regdatum_get(pTHX_ SV* sv, MAGIC* mg)
 #define PERL_ARGS_ASSERT_MAGIC_REGDATUM_GET    \
        assert(sv); assert(mg)
 
-PERL_CALLCONV int      Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg)
+PERL_CALLCONV_NO_RET int       Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg)
                        __attribute__noreturn__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -2208,12 +2203,6 @@ PERL_CALLCONV int        Perl_magic_set_all_env(pTHX_ SV* sv, MAGIC* mg)
 #define PERL_ARGS_ASSERT_MAGIC_SET_ALL_ENV     \
        assert(sv); assert(mg)
 
-PERL_CALLCONV int      Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_MAGIC_SETAMAGIC       \
-       assert(sv); assert(mg)
-
 PERL_CALLCONV int      Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -2315,12 +2304,6 @@ PERL_CALLCONV int        Perl_magic_setvec(pTHX_ SV* sv, MAGIC* mg)
 #define PERL_ARGS_ASSERT_MAGIC_SETVEC  \
        assert(sv); assert(mg)
 
-PERL_CALLCONV int      Perl_magic_setvstring(pTHX_ SV* sv, MAGIC* mg)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_MAGIC_SETVSTRING      \
-       assert(sv); assert(mg)
-
 PERL_CALLCONV U32      Perl_magic_sizepack(pTHX_ SV* sv, MAGIC* mg)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -2383,6 +2366,7 @@ PERL_CALLCONV int Perl_mg_get(pTHX_ SV* sv)
        assert(sv)
 
 PERL_CALLCONV U32      Perl_mg_length(pTHX_ SV* sv)
+                       __attribute__deprecated__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_MG_LENGTH     \
        assert(sv)
@@ -2474,11 +2458,6 @@ PERL_CALLCONV SV*        Perl_mro_set_private_data(pTHX_ struct mro_meta *const smeta,
 #define PERL_ARGS_ASSERT_MRO_SET_PRIVATE_DATA  \
        assert(smeta); assert(which); assert(data)
 
-PERL_CALLCONV void     Perl_munge_qwlist_to_paren_list(pTHX_ OP* qwlist)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_MUNGE_QWLIST_TO_PAREN_LIST    \
-       assert(qwlist)
-
 PERL_CALLCONV NV       Perl_my_atof(pTHX_ const char *s)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_MY_ATOF       \
@@ -2497,10 +2476,10 @@ PERL_CALLCONV OP *      Perl_my_attrs(pTHX_ OP *o, OP *attrs)
 
 PERL_CALLCONV void     Perl_my_clearenv(pTHX);
 PERL_CALLCONV int      Perl_my_dirfd(pTHX_ DIR* dir);
-PERL_CALLCONV void     Perl_my_exit(pTHX_ U32 status)
+PERL_CALLCONV_NO_RET void      Perl_my_exit(pTHX_ U32 status)
                        __attribute__noreturn__;
 
-PERL_CALLCONV void     Perl_my_failure_exit(pTHX)
+PERL_CALLCONV_NO_RET void      Perl_my_failure_exit(pTHX)
                        __attribute__noreturn__;
 
 PERL_CALLCONV I32      Perl_my_fflush_all(pTHX);
@@ -2666,6 +2645,11 @@ PERL_CALLCONV OP*        Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP* expr, OP*
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV CV *     Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_NEWMYSUB      \
+       assert(o)
+
 PERL_CALLCONV OP*      Perl_newNULLLIST(pTHX)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
@@ -2717,6 +2701,11 @@ PERL_CALLCONV OP*        Perl_newSTATEOP(pTHX_ I32 flags, char* label, OP* o)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV CV*      Perl_newSTUB(pTHX_ GV *gv, bool fake)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_NEWSTUB       \
+       assert(gv)
+
 /* PERL_CALLCONV CV*   Perl_newSUB(pTHX_ I32 floor, OP* o, OP* proto, OP* block); */
 PERL_CALLCONV SV*      Perl_newSV(pTHX_ const STRLEN len)
                        __attribute__malloc__
@@ -2913,6 +2902,7 @@ PERL_CALLCONV OP* Perl_op_prepend_elem(pTHX_ I32 optype, OP* first, OP* last);
 PERL_CALLCONV void     Perl_op_refcnt_lock(pTHX);
 PERL_CALLCONV void     Perl_op_refcnt_unlock(pTHX);
 PERL_CALLCONV OP*      Perl_op_scope(pTHX_ OP* o);
+PERL_CALLCONV OP*      Perl_op_unscope(pTHX_ OP* o);
 PERL_CALLCONV void     Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -2985,7 +2975,7 @@ PERL_CALLCONV void        Perl_pad_fixup_inner_anons(pTHX_ PADLIST *padlist, CV *old_cv
        assert(padlist); assert(old_cv); assert(new_cv)
 
 PERL_CALLCONV void     Perl_pad_free(pTHX_ PADOFFSET po);
-PERL_CALLCONV void     Perl_pad_leavemy(pTHX);
+PERL_CALLCONV OP *     Perl_pad_leavemy(pTHX);
 PERL_CALLCONV PADLIST* Perl_pad_new(pTHX_ int flags)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
@@ -2997,6 +2987,11 @@ PERL_CALLCONV void       Perl_pad_push(pTHX_ PADLIST *padlist, int depth)
 
 PERL_CALLCONV void     Perl_pad_swipe(pTHX_ PADOFFSET po, bool refadjust);
 PERL_CALLCONV void     Perl_pad_tidy(pTHX_ padtidy_type type);
+PERL_CALLCONV PAD **   Perl_padlist_store(pTHX_ PADLIST *padlist, I32 key, PAD *val)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_PADLIST_STORE \
+       assert(padlist)
+
 PERL_CALLCONV OP*      Perl_parse_arithexpr(pTHX_ U32 flags);
 PERL_CALLCONV OP*      Perl_parse_barestmt(pTHX_ U32 flags);
 PERL_CALLCONV OP*      Perl_parse_block(pTHX_ U32 flags);
@@ -3044,7 +3039,7 @@ PERL_CALLCONV int perl_run(PerlInterpreter *my_perl)
        assert(my_perl)
 
 PERL_CALLCONV void     Perl_pmop_dump(pTHX_ PMOP* pm);
-PERL_CALLCONV OP*      Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg)
+PERL_CALLCONV OP*      Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg, I32 floor)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_PMRUNTIME     \
@@ -3136,7 +3131,7 @@ PERL_CALLCONV void        Perl_qerror(pTHX_ SV* err)
 #define PERL_ARGS_ASSERT_QERROR        \
        assert(err)
 
-PERL_CALLCONV REGEXP*  Perl_re_compile(pTHX_ SV * const pattern, U32 flags)
+PERL_CALLCONV REGEXP*  Perl_re_compile(pTHX_ SV * const pattern, U32 orig_rx_flags)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_RE_COMPILE    \
        assert(pattern)
@@ -3153,10 +3148,23 @@ PERL_CALLCONV SV*       Perl_re_intuit_string(pTHX_ REGEXP  *const r)
 #define PERL_ARGS_ASSERT_RE_INTUIT_STRING      \
        assert(r)
 
+PERL_CALLCONV REGEXP*  Perl_re_op_compile(pTHX_ SV ** const patternp, int pat_count, OP *expr, const regexp_engine* eng, REGEXP *VOL old_re, bool *is_bare_re, U32 rx_flags, U32 pm_flags)
+                       __attribute__nonnull__(pTHX_4);
+#define PERL_ARGS_ASSERT_RE_OP_COMPILE \
+       assert(eng)
+
 PERL_CALLCONV Malloc_t Perl_realloc(Malloc_t where, MEM_SIZE nbytes)
                        __attribute__malloc__
                        __attribute__warn_unused_result__;
 
+PERL_CALLCONV void     Perl_reentrant_free(pTHX);
+PERL_CALLCONV void     Perl_reentrant_init(pTHX);
+PERL_CALLCONV void*    Perl_reentrant_retry(const char *f, ...)
+                       __attribute__nonnull__(1);
+#define PERL_ARGS_ASSERT_REENTRANT_RETRY       \
+       assert(f)
+
+PERL_CALLCONV void     Perl_reentrant_size(pTHX);
 /* PERL_CALLCONV OP*   Perl_ref(pTHX_ OP* o, I32 type); */
 PERL_CALLCONV HV *     Perl_refcounted_he_chain_2hv(pTHX_ const struct refcounted_he *c, U32 flags);
 PERL_CALLCONV SV *     Perl_refcounted_he_fetch_pv(pTHX_ const struct refcounted_he *chain, const char *key, U32 hash, U32 flags)
@@ -3269,11 +3277,6 @@ PERL_CALLCONV void       Perl_regdump(pTHX_ const regexp* r)
 #define PERL_ARGS_ASSERT_REGDUMP       \
        assert(r)
 
-PERL_CALLCONV void     Perl_regdump(pTHX_ const regexp* r)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_REGDUMP       \
-       assert(r)
-
 PERL_CALLCONV I32      Perl_regexec_flags(pTHX_ REGEXP *const rx, char *stringarg, char *strend, char *strbeg, I32 minend, SV *sv, void *data, U32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -3556,10 +3559,7 @@ PERL_CALLCONV char*      Perl_savesharedpv(pTHX_ const char* pv)
 
 PERL_CALLCONV char*    Perl_savesharedpvn(pTHX_ const char *const pv, const STRLEN len)
                        __attribute__malloc__
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_SAVESHAREDPVN \
-       assert(pv)
+                       __attribute__warn_unused_result__;
 
 PERL_CALLCONV char*    Perl_savesharedsvpv(pTHX_ SV *sv)
                        __attribute__malloc__
@@ -3637,7 +3637,11 @@ PERL_CALLCONV void       Perl_set_context(void *t)
 PERL_CALLCONV void     Perl_set_numeric_local(pTHX);
 PERL_CALLCONV void     Perl_set_numeric_radix(pTHX);
 PERL_CALLCONV void     Perl_set_numeric_standard(pTHX);
-PERL_CALLCONV void     Perl_setdefout(pTHX_ GV* gv);
+PERL_CALLCONV void     Perl_setdefout(pTHX_ GV* gv)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_SETDEFOUT     \
+       assert(gv)
+
 PERL_CALLCONV HEK*     Perl_share_hek(pTHX_ const char* str, I32 len, U32 hash)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_SHARE_HEK     \
@@ -3666,13 +3670,6 @@ PERL_CALLCONV PerlIO*    Perl_start_glob(pTHX_ SV *tmpglob, IO *io)
        assert(tmpglob); assert(io)
 
 PERL_CALLCONV I32      Perl_start_subparse(pTHX_ I32 is_format, U32 flags);
-PERL_CALLCONV bool     Perl_stashpv_hvname_match(pTHX_ const COP *c, const HV *hv)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_STASHPV_HVNAME_MATCH  \
-       assert(c); assert(hv)
-
 PERL_CALLCONV NV       Perl_str_to_version(pTHX_ SV *sv)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -3843,29 +3840,22 @@ PERL_CALLCONV I32       Perl_sv_cmp(pTHX_ SV *const sv1, SV *const sv2);
 PERL_CALLCONV I32      Perl_sv_cmp_flags(pTHX_ SV *const sv1, SV *const sv2, const U32 flags);
 PERL_CALLCONV I32      Perl_sv_cmp_locale(pTHX_ SV *const sv1, SV *const sv2);
 PERL_CALLCONV I32      Perl_sv_cmp_locale_flags(pTHX_ SV *const sv1, SV *const sv2, const U32 flags);
-PERL_CALLCONV OP*      Perl_sv_compile_2op(pTHX_ SV *sv, OP **startop, const char *code, PAD **padp)
-                       __attribute__deprecated__
+/* PERL_CALLCONV void  Perl_sv_copypv(pTHX_ SV *const dsv, SV *const ssv)
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
-#define PERL_ARGS_ASSERT_SV_COMPILE_2OP        \
-       assert(sv); assert(startop); assert(code); assert(padp)
-
-PERL_CALLCONV OP*      Perl_sv_compile_2op_is_broken(pTHX_ SV *sv, OP **startop, const char *code, PAD **padp)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
-#define PERL_ARGS_ASSERT_SV_COMPILE_2OP_IS_BROKEN      \
-       assert(sv); assert(startop); assert(code); assert(padp)
+                       __attribute__nonnull__(pTHX_2); */
+#define PERL_ARGS_ASSERT_SV_COPYPV     \
+       assert(dsv); assert(ssv)
 
-PERL_CALLCONV void     Perl_sv_copypv(pTHX_ SV *const dsv, SV *const ssv)
+PERL_CALLCONV void     Perl_sv_copypv_flags(pTHX_ SV *const dsv, SV *const ssv, const I32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_SV_COPYPV     \
+#define PERL_ARGS_ASSERT_SV_COPYPV_FLAGS       \
        assert(dsv); assert(ssv)
 
+/* PERL_CALLCONV void  Perl_sv_copypv_nomg(pTHX_ SV *const dsv, SV *const ssv)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2); */
+
 PERL_CALLCONV void     Perl_sv_dec(pTHX_ SV *const sv);
 PERL_CALLCONV void     Perl_sv_dec_nomg(pTHX_ SV *const sv);
 PERL_CALLCONV void     Perl_sv_del_backref(pTHX_ SV *const tsv, SV *const sv)
@@ -3993,6 +3983,11 @@ PERL_CALLCONV IV Perl_sv_iv(pTHX_ SV* sv)
 
 PERL_CALLCONV STRLEN   Perl_sv_len(pTHX_ SV *const sv);
 PERL_CALLCONV STRLEN   Perl_sv_len_utf8(pTHX_ SV *const sv);
+PERL_CALLCONV STRLEN   Perl_sv_len_utf8_nomg(pTHX_ SV *const sv)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_SV_LEN_UTF8_NOMG      \
+       assert(sv)
+
 PERL_CALLCONV void     Perl_sv_magic(pTHX_ SV *const sv, SV *const obj, const int how, const char *const name, const I32 namlen)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_SV_MAGIC      \
@@ -4124,6 +4119,7 @@ PERL_CALLCONV void        Perl_sv_reset(pTHX_ const char* s, HV *const stash)
 #define PERL_ARGS_ASSERT_SV_RESET      \
        assert(s)
 
+PERL_CALLCONV void     Perl_sv_resetpvn(pTHX_ const char* s, STRLEN len, HV *const stash);
 PERL_CALLCONV SV*      Perl_sv_rvweaken(pTHX_ SV *const sv)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_SV_RVWEAKEN   \
@@ -4368,6 +4364,12 @@ PERL_CALLCONV void       Perl_sv_vcatpvfn(pTHX_ SV *const sv, const char *const pat, c
 #define PERL_ARGS_ASSERT_SV_VCATPVFN   \
        assert(sv); assert(pat)
 
+PERL_CALLCONV void     Perl_sv_vcatpvfn_flags(pTHX_ SV *const sv, const char *const pat, const STRLEN patlen, va_list *const args, SV **const svargs, const I32 svmax, bool *const maybe_tainted, const U32 flags)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_SV_VCATPVFN_FLAGS     \
+       assert(sv); assert(pat)
+
 PERL_CALLCONV void     Perl_sv_vsetpvf(pTHX_ SV *const sv, const char *const pat, va_list *const args)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
@@ -4564,15 +4566,29 @@ PERL_CALLCONV U8*       Perl_utf8_to_bytes(pTHX_ U8 *s, STRLEN *len)
        assert(s); assert(len)
 
 PERL_CALLCONV UV       Perl_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN *retlen)
+                       __attribute__deprecated__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_UTF8_TO_UVCHR \
        assert(s)
 
+PERL_CALLCONV UV       Perl_utf8_to_uvchr_buf(pTHX_ const U8 *s, const U8 *send, STRLEN *retlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_UTF8_TO_UVCHR_BUF     \
+       assert(s); assert(send)
+
 PERL_CALLCONV UV       Perl_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN *retlen)
+                       __attribute__deprecated__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_UTF8_TO_UVUNI \
        assert(s)
 
+PERL_CALLCONV UV       Perl_utf8_to_uvuni_buf(pTHX_ const U8 *s, const U8 *send, STRLEN *retlen)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_UTF8_TO_UVUNI_BUF     \
+       assert(s); assert(send)
+
 PERL_CALLCONV UV       Perl_utf8n_to_uvuni(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_UTF8N_TO_UVUNI        \
@@ -4593,13 +4609,18 @@ PERL_CALLCONV U8*       Perl_uvuni_to_utf8_flags(pTHX_ U8 *d, UV uv, UV flags)
 #define PERL_ARGS_ASSERT_UVUNI_TO_UTF8_FLAGS   \
        assert(d)
 
+PERL_CALLCONV UV       Perl_valid_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN *retlen)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_VALID_UTF8_TO_UVUNI   \
+       assert(s)
+
 PERL_CALLCONV int      Perl_vcmp(pTHX_ SV *lhv, SV *rhv)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_VCMP  \
        assert(lhv); assert(rhv)
 
-PERL_CALLCONV void     Perl_vcroak(pTHX_ const char* pat, va_list* args)
+PERL_CALLCONV_NO_RET void      Perl_vcroak(pTHX_ const char* pat, va_list* args)
                        __attribute__noreturn__;
 
 PERL_CALLCONV void     Perl_vdeb(pTHX_ const char* pat, va_list* args)
@@ -4745,6 +4766,16 @@ PERL_CALLCONV int        Perl_yyerror(pTHX_ const char *const s)
 #define PERL_ARGS_ASSERT_YYERROR       \
        assert(s)
 
+PERL_CALLCONV int      Perl_yyerror_pv(pTHX_ const char *const s, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_YYERROR_PV    \
+       assert(s)
+
+PERL_CALLCONV int      Perl_yyerror_pvn(pTHX_ const char *const s, STRLEN len, U32 flags)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_YYERROR_PVN   \
+       assert(s)
+
 PERL_CALLCONV int      Perl_yylex(pTHX);
 PERL_CALLCONV int      Perl_yyparse(pTHX_ int gramtype);
 PERL_CALLCONV void     Perl_yyunlex(pTHX);
@@ -4770,6 +4801,11 @@ STATIC int       S_sv_2iuv_non_preserve(pTHX_ SV *const sv)
 #define PERL_ARGS_ASSERT_UVCHR_TO_UTF8 \
        assert(d)
 
+/* PERL_CALLCONV UV    Perl_valid_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN *retlen)
+                       __attribute__nonnull__(pTHX_1); */
+#define PERL_ARGS_ASSERT_VALID_UTF8_TO_UVCHR   \
+       assert(s)
+
 #endif
 #if !(defined(HAS_SIGACTION) && defined(SA_SIGINFO))
 PERL_CALLCONV Signal_t Perl_csighandler(int sig);
@@ -4796,9 +4832,6 @@ PERL_CALLCONV void*       Perl_my_cxt_init(pTHX_ int *index, size_t size)
 #endif
 #if !(defined(PERL_MAD))
 PERL_CALLCONV void     Perl_newFORM(pTHX_ I32 floor, OP* o, OP* block);
-PERL_CALLCONV void     Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
-                       __attribute__noreturn__;
-
 PERL_CALLCONV void     Perl_package(pTHX_ OP* o)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_PACKAGE       \
@@ -5104,6 +5137,11 @@ PERL_CALLCONV U8*        Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
 #define PERL_ARGS_ASSERT_UVCHR_TO_UTF8 \
        assert(d)
 
+PERL_CALLCONV UV       Perl_valid_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN *retlen)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_VALID_UTF8_TO_UVCHR   \
+       assert(s)
+
 #endif
 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
 PERL_CALLCONV I32      Perl_do_ipcctl(pTHX_ I32 optype, SV** mark, SV** sp)
@@ -5200,6 +5238,35 @@ PERL_CALLCONV short      Perl_my_swap(pTHX_ short s)
 #if defined(NO_MATHOMS)
 /* PERL_CALLCONV void  Perl_sv_nounlocking(pTHX_ SV *sv); */
 #endif
+#if defined(PERL_CORE)
+PERL_CALLCONV void     Perl_opslab_force_free(pTHX_ OPSLAB *slab)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_OPSLAB_FORCE_FREE     \
+       assert(slab)
+
+PERL_CALLCONV void     Perl_opslab_free(pTHX_ OPSLAB *slab)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_OPSLAB_FREE   \
+       assert(slab)
+
+PERL_CALLCONV void     Perl_opslab_free_nopad(pTHX_ OPSLAB *slab)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_OPSLAB_FREE_NOPAD     \
+       assert(slab)
+
+#  if defined(PERL_DEBUG_READONLY_OPS)
+PERL_CALLCONV void     Perl_Slab_to_ro(pTHX_ OPSLAB *slab)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_SLAB_TO_RO    \
+       assert(slab)
+
+PERL_CALLCONV void     Perl_Slab_to_rw(pTHX_ OPSLAB *const slab)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_SLAB_TO_RW    \
+       assert(slab)
+
+#  endif
+#endif
 #if defined(PERL_CR_FILTER)
 #  if defined(PERL_IN_TOKE_C)
 STATIC I32     S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen);
@@ -5211,24 +5278,12 @@ STATIC void     S_strip_return(pTHX_ SV *sv)
 #  endif
 #endif
 #if defined(PERL_DEBUG_READONLY_OPS)
-#  if defined(PERL_IN_OP_C)
-#    if defined(PL_OP_SLAB_ALLOC)
-STATIC void    S_Slab_to_rw(pTHX_ void *op)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_SLAB_TO_RW    \
-       assert(op)
-
-#    endif
-#  endif
-#  if defined(PL_OP_SLAB_ALLOC)
 PERL_CALLCONV PADOFFSET        Perl_op_refcnt_dec(pTHX_ OP *o)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_OP_REFCNT_DEC \
        assert(o)
 
 PERL_CALLCONV OP *     Perl_op_refcnt_inc(pTHX_ OP *o);
-PERL_CALLCONV void     Perl_pending_Slabs_to_ro(pTHX);
-#  endif
 #endif
 #if defined(PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION)
 /* PERL_CALLCONV bool  Perl_do_exec(pTHX_ const char* cmd)
@@ -5262,7 +5317,7 @@ PERL_CALLCONV void*       Perl_my_cxt_init(pTHX_ const char *my_cxt_key, size_t size)
 #  endif
 #endif
 #if defined(PERL_IMPLICIT_CONTEXT)
-PERL_CALLCONV void     Perl_croak_nocontext(const char* pat, ...)
+PERL_CALLCONV_NO_RET void      Perl_croak_nocontext(const char* pat, ...)
                        __attribute__noreturn__
                        __attribute__format__null_ok__(__printf__,1,2);
 
@@ -5458,6 +5513,15 @@ STATIC bool      S_grok_bslash_o(pTHX_ const char* s, UV* uv, STRLEN* len, const char
 #define PERL_ARGS_ASSERT_GROK_BSLASH_O \
        assert(s); assert(uv); assert(len); assert(error_msg)
 
+PERL_STATIC_INLINE bool        S_grok_bslash_x(pTHX_ const char* s, UV* uv, STRLEN* len, const char** error_msg, const bool output_warning)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
+#define PERL_ARGS_ASSERT_GROK_BSLASH_X \
+       assert(s); assert(uv); assert(len); assert(error_msg)
+
 PERL_STATIC_INLINE I32 S_regcurly(pTHX_ const char *s)
                        __attribute__warn_unused_result__
                        __attribute__pure__
@@ -5497,11 +5561,6 @@ PERL_CALLCONV void       Perl_hv_kill_backrefs(pTHX_ HV *hv)
 
 #endif
 #if defined(PERL_IN_GV_C)
-STATIC HV*     S_gv_get_super_pkg(pTHX_ const char* name, I32 namelen, U32 flags)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_GV_GET_SUPER_PKG      \
-       assert(name)
-
 STATIC void    S_gv_init_svtype(pTHX_ GV *gv, const svtype sv_type)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_GV_INIT_SVTYPE        \
@@ -5512,11 +5571,6 @@ STATIC void      S_gv_magicalize_isa(pTHX_ GV *gv)
 #define PERL_ARGS_ASSERT_GV_MAGICALIZE_ISA     \
        assert(gv)
 
-STATIC void    S_gv_magicalize_overload(pTHX_ GV *gv)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_GV_MAGICALIZE_OVERLOAD        \
-       assert(gv)
-
 STATIC HV*     S_require_tie_mod(pTHX_ GV *gv, const char *varpv, SV* namesv, const char *methpv, const U32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -5679,7 +5733,7 @@ STATIC NV S_mulexp10(NV value, I32 exponent);
 #endif
 #if defined(PERL_IN_OP_C)
 PERL_STATIC_INLINE bool        S_aassign_common_vars(pTHX_ OP* o);
-STATIC void    S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my)
+STATIC void    S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_APPLY_ATTRS   \
@@ -5692,13 +5746,20 @@ STATIC void     S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp
 #define PERL_ARGS_ASSERT_APPLY_ATTRS_MY        \
        assert(stash); assert(target); assert(imopsp)
 
-STATIC void    S_bad_type(pTHX_ I32 n, const char *t, const char *name, const OP *kid)
+STATIC void    S_bad_type_pv(pTHX_ I32 n, const char *t, const char *name, U32 flags, const OP *kid)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
-#define PERL_ARGS_ASSERT_BAD_TYPE      \
+                       __attribute__nonnull__(pTHX_5);
+#define PERL_ARGS_ASSERT_BAD_TYPE_PV   \
        assert(t); assert(name); assert(kid)
 
+STATIC void    S_bad_type_sv(pTHX_ I32 n, const char *t, SV *namesv, U32 flags, const OP *kid)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_5);
+#define PERL_ARGS_ASSERT_BAD_TYPE_SV   \
+       assert(t); assert(namesv); assert(kid)
+
 STATIC void    S_cop_free(pTHX_ COP *cop)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_COP_FREE      \
@@ -5726,7 +5787,7 @@ STATIC OP*        S_fold_constants(pTHX_ OP *o)
 
 STATIC OP*     S_force_list(pTHX_ OP* arg);
 STATIC OP*     S_gen_constant_list(pTHX_ OP* o);
-STATIC const char*     S_gv_ename(pTHX_ GV *gv)
+STATIC SV*     S_gv_ename(pTHX_ GV *gv)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_GV_ENAME      \
        assert(gv)
@@ -5793,11 +5854,6 @@ PERL_STATIC_INLINE OP*   S_op_std_init(pTHX_ OP *o)
 #define PERL_ARGS_ASSERT_OP_STD_INIT   \
        assert(o)
 
-STATIC OP*     S_opt_scalarhv(pTHX_ OP* rep_op)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_OPT_SCALARHV  \
-       assert(rep_op)
-
 STATIC OP*     S_pmtrans(pTHX_ OP* o, OP* expr, OP* repl)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -5805,10 +5861,10 @@ STATIC OP*      S_pmtrans(pTHX_ OP* o, OP* expr, OP* repl)
 #define PERL_ARGS_ASSERT_PMTRANS       \
        assert(o); assert(expr); assert(repl)
 
-STATIC void    S_process_special_blocks(pTHX_ const char *const fullname, GV *const gv, CV *const cv)
-                       __attribute__nonnull__(pTHX_1)
+STATIC void    S_process_special_blocks(pTHX_ I32 floor, const char *const fullname, GV *const gv, CV *const cv)
                        __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_3);
+                       __attribute__nonnull__(pTHX_3)
+                       __attribute__nonnull__(pTHX_4);
 #define PERL_ARGS_ASSERT_PROCESS_SPECIAL_BLOCKS        \
        assert(fullname); assert(gv); assert(cv)
 
@@ -5835,19 +5891,33 @@ STATIC void     S_simplify_sort(pTHX_ OP *o)
 #define PERL_ARGS_ASSERT_SIMPLIFY_SORT \
        assert(o)
 
-STATIC OP*     S_too_few_arguments(pTHX_ OP *o, const char* name)
+STATIC OP*     S_too_few_arguments_pv(pTHX_ OP *o, const char* name, U32 flags)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_TOO_FEW_ARGUMENTS     \
+#define PERL_ARGS_ASSERT_TOO_FEW_ARGUMENTS_PV  \
        assert(o); assert(name)
 
-STATIC OP*     S_too_many_arguments(pTHX_ OP *o, const char* name)
+STATIC OP*     S_too_few_arguments_sv(pTHX_ OP *o, SV* namesv, U32 flags)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_TOO_FEW_ARGUMENTS_SV  \
+       assert(o); assert(namesv)
+
+STATIC OP*     S_too_many_arguments_pv(pTHX_ OP *o, const char* name, U32 flags)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
-#define PERL_ARGS_ASSERT_TOO_MANY_ARGUMENTS    \
+#define PERL_ARGS_ASSERT_TOO_MANY_ARGUMENTS_PV \
        assert(o); assert(name)
 
+STATIC OP*     S_too_many_arguments_sv(pTHX_ OP *o, SV* namesv, U32 flags)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_TOO_MANY_ARGUMENTS_SV \
+       assert(o); assert(namesv)
+
 #  if defined(USE_ITHREADS)
 STATIC void    S_forget_pmop(pTHX_ PMOP *const o, U32 flags)
                        __attribute__nonnull__(pTHX_1);
@@ -5925,12 +5995,11 @@ STATIC void     S_my_exit_jump(pTHX)
                        __attribute__noreturn__;
 
 STATIC void    S_nuke_stacks(pTHX);
-STATIC int     S_open_script(pTHX_ const char *scriptname, bool dosearch, bool *suidscript, PerlIO **rsfpp)
+STATIC PerlIO *        S_open_script(pTHX_ const char *scriptname, bool dosearch, bool *suidscript)
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
+                       __attribute__nonnull__(pTHX_3);
 #define PERL_ARGS_ASSERT_OPEN_SCRIPT   \
-       assert(scriptname); assert(suidscript); assert(rsfpp)
+       assert(scriptname); assert(suidscript)
 
 STATIC void*   S_parse_body(pTHX_ char **env, XSINIT_t xsinit);
 STATIC void    S_run_body(pTHX_ I32 oldscope)
@@ -5988,13 +6057,13 @@ STATIC OP*      S_do_smartmatch(pTHX_ HV* seen_this, HV* seen_other, const bool copie
 STATIC OP*     S_docatch(pTHX_ OP *o)
                        __attribute__warn_unused_result__;
 
-STATIC bool    S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq, HV* hh);
-STATIC OP*     S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit)
+STATIC bool    S_doeval(pTHX_ int gimme, CV* outside, U32 seq, HV* hh);
+STATIC OP*     S_dofindlabel(pTHX_ OP *o, const char *label, STRLEN len, U32 flags, OP **opstack, OP **oplimit)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_3)
-                       __attribute__nonnull__(pTHX_4);
+                       __attribute__nonnull__(pTHX_5)
+                       __attribute__nonnull__(pTHX_6);
 #define PERL_ARGS_ASSERT_DOFINDLABEL   \
        assert(o); assert(label); assert(opstack); assert(oplimit)
 
@@ -6009,7 +6078,7 @@ STATIC I32        S_dopoptoeval(pTHX_ I32 startingblock)
 STATIC I32     S_dopoptogiven(pTHX_ I32 startingblock)
                        __attribute__warn_unused_result__;
 
-STATIC I32     S_dopoptolabel(pTHX_ const char *label)
+STATIC I32     S_dopoptolabel(pTHX_ const char *label, STRLEN len, U32 flags)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_DOPOPTOLABEL  \
@@ -6246,6 +6315,11 @@ STATIC SV *      S_space_join_names_mortal(pTHX_ char *const *array)
 
 #endif
 #if defined(PERL_IN_REGCOMP_C)
+STATIC void    S__append_range_to_invlist(pTHX_ SV* const invlist, const UV start, const UV end)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT__APPEND_RANGE_TO_INVLIST      \
+       assert(invlist)
+
 PERL_STATIC_INLINE UV* S__invlist_array_init(pTHX_ SV* const invlist, const bool will_have_0)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -6274,8 +6348,12 @@ STATIC U32       S_add_data(struct RExC_state_t *pRExC_state, U32 n, const char *s)
 #define PERL_ARGS_ASSERT_ADD_DATA      \
        assert(pRExC_state); assert(s)
 
-STATIC SV*     S_add_range_to_invlist(pTHX_ SV* invlist, const UV start, const UV end)
-                       __attribute__warn_unused_result__;
+PERL_STATIC_INLINE void        S_alloc_maybe_populate_EXACT(pTHX_ struct RExC_state_t *pRExC_state, regnode *node, I32 *flagp, STRLEN len, UV code_point)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+#define PERL_ARGS_ASSERT_ALLOC_MAYBE_POPULATE_EXACT    \
+       assert(pRExC_state); assert(node); assert(flagp)
 
 STATIC void    S_checkposixcc(pTHX_ struct RExC_state_t *pRExC_state)
                        __attribute__nonnull__(pTHX_1);
@@ -6313,16 +6391,21 @@ STATIC void     S_cl_or(const struct RExC_state_t *pRExC_state, struct regnode_charc
 #define PERL_ARGS_ASSERT_CL_OR \
        assert(pRExC_state); assert(cl); assert(or_with)
 
+PERL_STATIC_INLINE U8  S_compute_EXACTish(pTHX_ struct RExC_state_t *pRExC_state)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_COMPUTE_EXACTISH      \
+       assert(pRExC_state)
+
 PERL_STATIC_INLINE UV* S_get_invlist_iter_addr(pTHX_ SV* invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_GET_INVLIST_ITER_ADDR \
        assert(invlist)
 
-PERL_STATIC_INLINE UV* S_get_invlist_len_addr(pTHX_ SV* invlist)
+PERL_STATIC_INLINE IV* S_get_invlist_previous_index_addr(pTHX_ SV* invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_GET_INVLIST_LEN_ADDR  \
+#define PERL_ARGS_ASSERT_GET_INVLIST_PREVIOUS_INDEX_ADDR       \
        assert(invlist)
 
 PERL_STATIC_INLINE UV* S_get_invlist_version_id_addr(pTHX_ SV* invlist)
@@ -6337,6 +6420,12 @@ PERL_STATIC_INLINE UV*   S_get_invlist_zero_addr(pTHX_ SV* invlist)
 #define PERL_ARGS_ASSERT_GET_INVLIST_ZERO_ADDR \
        assert(invlist)
 
+STATIC bool    S_grok_bslash_N(pTHX_ struct RExC_state_t *pRExC_state, regnode** nodep, UV *valuep, I32 *flagp, U32 depth, bool in_char_class)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_4);
+#define PERL_ARGS_ASSERT_GROK_BSLASH_N \
+       assert(pRExC_state); assert(flagp)
+
 PERL_STATIC_INLINE UV* S_invlist_array(pTHX_ SV* const invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
@@ -6354,6 +6443,12 @@ STATIC void      S_invlist_extend(pTHX_ SV* const invlist, const UV len)
 #define PERL_ARGS_ASSERT_INVLIST_EXTEND        \
        assert(invlist)
 
+PERL_STATIC_INLINE UV  S_invlist_highest(pTHX_ SV* const invlist)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_INVLIST_HIGHEST       \
+       assert(invlist)
+
 PERL_STATIC_INLINE void        S_invlist_iterinit(pTHX_ SV* invlist)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_INVLIST_ITERINIT      \
@@ -6367,22 +6462,16 @@ STATIC bool     S_invlist_iternext(pTHX_ SV* invlist, UV* start, UV* end)
 #define PERL_ARGS_ASSERT_INVLIST_ITERNEXT      \
        assert(invlist); assert(start); assert(end)
 
-PERL_STATIC_INLINE UV  S_invlist_len(pTHX_ SV* const invlist)
-                       __attribute__warn_unused_result__
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_INVLIST_LEN   \
-       assert(invlist)
-
 PERL_STATIC_INLINE UV  S_invlist_max(pTHX_ SV* const invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_INVLIST_MAX   \
        assert(invlist)
 
-STATIC IV      S_invlist_search(pTHX_ SV* const invlist, const UV cp)
+PERL_STATIC_INLINE IV  S_invlist_previous_index(pTHX_ SV* const invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_INVLIST_SEARCH        \
+#define PERL_ARGS_ASSERT_INVLIST_PREVIOUS_INDEX        \
        assert(invlist)
 
 PERL_STATIC_INLINE void        S_invlist_set_len(pTHX_ SV* const invlist, const UV len)
@@ -6390,6 +6479,11 @@ PERL_STATIC_INLINE void  S_invlist_set_len(pTHX_ SV* const invlist, const UV len)
 #define PERL_ARGS_ASSERT_INVLIST_SET_LEN       \
        assert(invlist)
 
+PERL_STATIC_INLINE void        S_invlist_set_previous_index(pTHX_ SV* const invlist, const IV index)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_INVLIST_SET_PREVIOUS_INDEX    \
+       assert(invlist)
+
 PERL_STATIC_INLINE void        S_invlist_trim(pTHX_ SV* const invlist)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_INVLIST_TRIM  \
@@ -6437,11 +6531,6 @@ STATIC regnode*  S_reg(pTHX_ struct RExC_state_t *pRExC_state, I32 paren, I32 *fl
 #define PERL_ARGS_ASSERT_REG   \
        assert(pRExC_state); assert(flagp)
 
-STATIC regnode*        S_reg_namedseq(pTHX_ struct RExC_state_t *pRExC_state, UV *valuep, I32 *flagp, U32 depth)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_REG_NAMEDSEQ  \
-       assert(pRExC_state)
-
 STATIC regnode*        S_reg_node(pTHX_ struct RExC_state_t *pRExC_state, U8 op)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_REG_NODE      \
@@ -6479,10 +6568,11 @@ STATIC regnode* S_regbranch(pTHX_ struct RExC_state_t *pRExC_state, I32 *flagp,
 #define PERL_ARGS_ASSERT_REGBRANCH     \
        assert(pRExC_state); assert(flagp)
 
-STATIC regnode*        S_regclass(pTHX_ struct RExC_state_t *pRExC_state, U32 depth)
-                       __attribute__nonnull__(pTHX_1);
+STATIC regnode*        S_regclass(pTHX_ struct RExC_state_t *pRExC_state, I32 *flagp, U32 depth)
+                       __attribute__nonnull__(pTHX_1)
+                       __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_REGCLASS      \
-       assert(pRExC_state)
+       assert(pRExC_state); assert(flagp)
 
 STATIC void    S_reginsert(pTHX_ struct RExC_state_t *pRExC_state, U8 op, regnode *opnd, U32 depth)
                        __attribute__nonnull__(pTHX_1)
@@ -6528,22 +6618,6 @@ STATIC void      S_scan_commit(pTHX_ const struct RExC_state_t *pRExC_state, struct s
 #define PERL_ARGS_ASSERT_SCAN_COMMIT   \
        assert(pRExC_state); assert(data); assert(minlenp)
 
-PERL_STATIC_INLINE U8  S_set_regclass_bit(pTHX_ struct RExC_state_t* pRExC_state, regnode* node, const U8 value, SV** invlist_ptr, AV** alternate_ptr)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_4)
-                       __attribute__nonnull__(pTHX_5);
-#define PERL_ARGS_ASSERT_SET_REGCLASS_BIT      \
-       assert(pRExC_state); assert(node); assert(invlist_ptr); assert(alternate_ptr)
-
-STATIC U8      S_set_regclass_bit_fold(pTHX_ struct RExC_state_t *pRExC_state, regnode* node, const U8 value, SV** invlist_ptr, AV** alternate_ptr)
-                       __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_4)
-                       __attribute__nonnull__(pTHX_5);
-#define PERL_ARGS_ASSERT_SET_REGCLASS_BIT_FOLD \
-       assert(pRExC_state); assert(node); assert(invlist_ptr); assert(alternate_ptr)
-
 STATIC I32     S_study_chunk(pTHX_ struct RExC_state_t *pRExC_state, regnode **scanp, I32 *minlenp, I32 *deltap, regnode *last, struct scan_data_t *data, I32 stopparen, U8* recursed, struct regnode_charclass_class *and_withp, U32 flags, U32 depth)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -6555,26 +6629,54 @@ STATIC I32      S_study_chunk(pTHX_ struct RExC_state_t *pRExC_state, regnode **scanp
 
 #endif
 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) || defined(PERL_IN_UTF8_C)
-PERL_CALLCONV SV*      Perl__core_swash_init(pTHX_ const char* pkg, const char* name, SV* listsv, I32 minbits, I32 none, bool return_if_undef, SV* invlist, bool passed_in_invlist_has_user_defined_property)
+PERL_CALLCONV SV*      Perl__core_swash_init(pTHX_ const char* pkg, const char* name, SV* listsv, I32 minbits, I32 none, SV* invlist, U8* const flags_p)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
                        __attribute__nonnull__(pTHX_3);
 #define PERL_ARGS_ASSERT__CORE_SWASH_INIT      \
        assert(pkg); assert(name); assert(listsv)
 
+PERL_STATIC_INLINE UV* S__get_invlist_len_addr(pTHX_ SV* invlist)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT__GET_INVLIST_LEN_ADDR \
+       assert(invlist)
+
+PERL_CALLCONV SV*      Perl__get_swash_invlist(pTHX_ SV* const swash)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT__GET_SWASH_INVLIST    \
+       assert(swash)
+
+PERL_STATIC_INLINE bool        S__invlist_contains_cp(pTHX_ SV* const invlist, const UV cp)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT__INVLIST_CONTAINS_CP  \
+       assert(invlist)
+
 PERL_CALLCONV SV*      Perl__invlist_contents(pTHX_ SV* const invlist)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT__INVLIST_CONTENTS     \
        assert(invlist)
 
-#endif
-#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_UTF8_C)
-PERL_CALLCONV void     Perl__append_range_to_invlist(pTHX_ SV* const invlist, const UV start, const UV end)
+PERL_STATIC_INLINE UV  S__invlist_len(pTHX_ SV* const invlist)
+                       __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT__APPEND_RANGE_TO_INVLIST      \
+#define PERL_ARGS_ASSERT__INVLIST_LEN  \
        assert(invlist)
 
+PERL_CALLCONV IV       Perl__invlist_search(pTHX_ SV* const invlist, const UV cp)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT__INVLIST_SEARCH       \
+       assert(invlist)
+
+#endif
+#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_UTF8_C)
+PERL_CALLCONV SV*      Perl__add_range_to_invlist(pTHX_ SV* invlist, const UV start, const UV end)
+                       __attribute__warn_unused_result__;
+
 /* PERL_CALLCONV void  _invlist_intersection(pTHX_ SV* const a, SV* const b, SV** i)
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2)
@@ -6649,6 +6751,12 @@ STATIC char*     S_find_byclass(pTHX_ regexp * prog, const regnode *c, char *s, cons
 #define PERL_ARGS_ASSERT_FIND_BYCLASS  \
        assert(prog); assert(c); assert(s); assert(strend)
 
+PERL_STATIC_INLINE bool        S_is_utf8_X_LVT(pTHX_ const U8 *p)
+                       __attribute__warn_unused_result__
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_IS_UTF8_X_LVT \
+       assert(p)
+
 STATIC I32     S_reg_check_named_buff_matched(pTHX_ const regexp *rex, const regnode *scan)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
@@ -6656,12 +6764,16 @@ STATIC I32      S_reg_check_named_buff_matched(pTHX_ const regexp *rex, const regnode
 #define PERL_ARGS_ASSERT_REG_CHECK_NAMED_BUFF_MATCHED  \
        assert(rex); assert(scan)
 
-STATIC char*   S_regcppop(pTHX_ const regexp *rex)
+STATIC void    S_regcppop(pTHX_ regexp *rex)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_REGCPPOP      \
        assert(rex)
 
-STATIC CHECKPOINT      S_regcppush(pTHX_ I32 parenfloor);
+STATIC CHECKPOINT      S_regcppush(pTHX_ const regexp *rex, I32 parenfloor)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_REGCPPUSH     \
+       assert(rex)
+
 STATIC U8*     S_reghop3(U8 *s, I32 off, const U8 *lim)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(1)
@@ -6683,26 +6795,28 @@ STATIC bool     S_reginclass(pTHX_ const regexp * const prog, const regnode * const
 #define PERL_ARGS_ASSERT_REGINCLASS    \
        assert(n); assert(p)
 
-STATIC I32     S_regmatch(pTHX_ regmatch_info *reginfo, regnode *prog)
+STATIC I32     S_regmatch(pTHX_ regmatch_info *reginfo, char *startpos, regnode *prog)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 #define PERL_ARGS_ASSERT_REGMATCH      \
-       assert(reginfo); assert(prog)
+       assert(reginfo); assert(startpos); assert(prog)
 
-STATIC I32     S_regrepeat(pTHX_ const regexp *prog, const regnode *p, I32 max, int depth)
+STATIC I32     S_regrepeat(pTHX_ const regexp *prog, char **startposp, const regnode *p, I32 max, int depth)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
-                       __attribute__nonnull__(pTHX_2);
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
 #define PERL_ARGS_ASSERT_REGREPEAT     \
-       assert(prog); assert(p)
+       assert(prog); assert(startposp); assert(p)
 
-STATIC I32     S_regtry(pTHX_ regmatch_info *reginfo, char **startpos)
+STATIC I32     S_regtry(pTHX_ regmatch_info *reginfo, char **startposp)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_REGTRY        \
-       assert(reginfo); assert(startpos)
+       assert(reginfo); assert(startposp)
 
 STATIC void    S_to_byte_substr(pTHX_ regexp * prog)
                        __attribute__nonnull__(pTHX_1);
@@ -6935,6 +7049,7 @@ STATIC void       S_force_ident(pTHX_ const char *s, int kind)
 #define PERL_ARGS_ASSERT_FORCE_IDENT   \
        assert(s)
 
+STATIC void    S_force_ident_maybe_lex(pTHX_ char pit);
 STATIC void    S_force_next(pTHX_ I32 type);
 STATIC char*   S_force_strict_version(pTHX_ char *s)
                        __attribute__nonnull__(pTHX_1);
@@ -6985,6 +7100,7 @@ STATIC void       S_no_op(pTHX_ const char *const what, char *s)
 #define PERL_ARGS_ASSERT_NO_OP \
        assert(what)
 
+STATIC int     S_pending_ident(pTHX);
 STATIC void    S_readpipe_override(pTHX);
 STATIC char*   S_scan_const(pTHX_ char *start)
                        __attribute__warn_unused_result__
@@ -7023,7 +7139,7 @@ STATIC char*      S_scan_pat(pTHX_ char *start, I32 type)
 #define PERL_ARGS_ASSERT_SCAN_PAT      \
        assert(start)
 
-STATIC char*   S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims)
+STATIC char*   S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims, int re_reparse)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_SCAN_STR      \
@@ -7081,7 +7197,7 @@ STATIC SV*        S_tokeq(pTHX_ SV *sv)
        assert(sv)
 
 STATIC void    S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len);
-STATIC int     S_yywarn(pTHX_ const char *const s)
+STATIC int     S_yywarn(pTHX_ const char *const s, U32 flags)
                        __attribute__nonnull__(pTHX_1);
 #define PERL_ARGS_ASSERT_YYWARN        \
        assert(s)
@@ -7115,12 +7231,6 @@ STATIC bool      S_isa_lookup(pTHX_ HV *stash, const char * const name, STRLEN len, U
 
 #endif
 #if defined(PERL_IN_UTF8_C)
-PERL_CALLCONV UV       Perl__to_fold_latin1(pTHX_ const U8 c, U8 *p, STRLEN *lenp, const bool flags)
-                       __attribute__nonnull__(pTHX_2)
-                       __attribute__nonnull__(pTHX_3);
-#define PERL_ARGS_ASSERT__TO_FOLD_LATIN1       \
-       assert(p); assert(lenp)
-
 STATIC UV      S_check_locale_boundary_crossing(pTHX_ const U8* const p, const UV result, U8* const ustrp, STRLEN *lenp)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_1)
@@ -7161,6 +7271,14 @@ PERL_CALLCONV UV Perl__to_upper_title_latin1(pTHX_ const U8 c, U8 *p, STRLEN *le
        assert(p); assert(lenp)
 
 #endif
+#if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
+PERL_CALLCONV UV       Perl__to_fold_latin1(pTHX_ const U8 c, U8 *p, STRLEN *lenp, const bool flags)
+                       __attribute__nonnull__(pTHX_2)
+                       __attribute__nonnull__(pTHX_3);
+#define PERL_ARGS_ASSERT__TO_FOLD_LATIN1       \
+       assert(p); assert(lenp)
+
+#endif
 #if defined(PERL_IN_UTIL_C)
 STATIC bool    S_ckwarn_common(pTHX_ U32 w);
 STATIC const COP*      S_closest_cop(pTHX_ const COP *cop, const OP *o)
@@ -7211,9 +7329,6 @@ PERL_CALLCONV MADPROP*    Perl_newMADsv(pTHX_ char key, SV* sv)
 #define PERL_ARGS_ASSERT_NEWMADSV      \
        assert(sv)
 
-PERL_CALLCONV OP *     Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
-                       __attribute__noreturn__;
-
 PERL_CALLCONV TOKEN*   Perl_newTOKEN(pTHX_ I32 optype, YYSTYPE lval, MADPROP* madprop);
 PERL_CALLCONV void     Perl_op_getmad(pTHX_ OP* from, OP* o, char slot);
 PERL_CALLCONV void     Perl_op_getmad_weak(pTHX_ OP* from, OP* o, char slot);
@@ -7396,17 +7511,6 @@ PERL_CALLCONV SV*        Perl_sv_setsv_cow(pTHX_ SV* dstr, SV* sstr)
 #if defined(PERL_USES_PL_PIDSTATUS) && defined(PERL_IN_UTIL_C)
 STATIC void    S_pidgone(pTHX_ Pid_t pid, int status);
 #endif
-#if defined(PL_OP_SLAB_ALLOC)
-PERL_CALLCONV void*    Perl_Slab_Alloc(pTHX_ size_t sz)
-                       __attribute__malloc__
-                       __attribute__warn_unused_result__;
-
-PERL_CALLCONV void     Perl_Slab_Free(pTHX_ void *op)
-                       __attribute__nonnull__(pTHX_1);
-#define PERL_ARGS_ASSERT_SLAB_FREE     \
-       assert(op)
-
-#endif
 #if defined(UNLINK_ALL_VERSIONS)
 PERL_CALLCONV I32      Perl_unlnk(pTHX_ const char* f)
                        __attribute__nonnull__(pTHX_1);
@@ -7415,6 +7519,11 @@ PERL_CALLCONV I32        Perl_unlnk(pTHX_ const char* f)
 
 #endif
 #if defined(USE_ITHREADS)
+PERL_CALLCONV PADOFFSET        Perl_alloccopstash(pTHX_ HV *hv)
+                       __attribute__nonnull__(pTHX_1);
+#define PERL_ARGS_ASSERT_ALLOCCOPSTASH \
+       assert(hv)
+
 PERL_CALLCONV void*    Perl_any_dup(pTHX_ void* v, const PerlInterpreter* proto_perl)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_2);
@@ -7488,7 +7597,7 @@ PERL_CALLCONV OP* Perl_newPADOP(pTHX_ I32 type, I32 flags, SV* sv)
 #define PERL_ARGS_ASSERT_NEWPADOP      \
        assert(sv)
 
-PERL_CALLCONV AV*      Perl_padlist_dup(pTHX_ AV *srcpad, CLONE_PARAMS *param)
+PERL_CALLCONV PADLIST *        Perl_padlist_dup(pTHX_ PADLIST *srcpad, CLONE_PARAMS *param)
                        __attribute__warn_unused_result__
                        __attribute__nonnull__(pTHX_2);
 #define PERL_ARGS_ASSERT_PADLIST_DUP   \
@@ -7621,16 +7730,6 @@ PERL_CALLCONV SSize_t    Perl_PerlIO_write(pTHX_ PerlIO *f, const void *vbuf, Size_
        assert(vbuf)
 
 #endif
-#if defined(USE_REENTRANT_API)
-PERL_CALLCONV void     Perl_reentrant_free(pTHX);
-PERL_CALLCONV void     Perl_reentrant_init(pTHX);
-PERL_CALLCONV void*    Perl_reentrant_retry(const char *f, ...)
-                       __attribute__nonnull__(1);
-#define PERL_ARGS_ASSERT_REENTRANT_RETRY       \
-       assert(f)
-
-PERL_CALLCONV void     Perl_reentrant_size(pTHX);
-#endif
 #if defined(WIN32) || defined(__SYMBIAN32__) || defined(VMS)
 PERL_CALLCONV int      Perl_do_aspawn(pTHX_ SV* really, SV** mark, SV** sp)
                        __attribute__nonnull__(pTHX_2)