1 files changed, 51 insertions, 3 deletions
diff --git a/internal/numeric.h b/internal/numeric.h
index 89bc54b307..d3905f048c 100644
--- a/internal/numeric.h
+++ b/internal/numeric.h
@@ -85,7 +85,9 @@ VALUE rb_int_cmp(VALUE x, VALUE y);
 VALUE rb_int_equal(VALUE x, VALUE y);
 VALUE rb_int_divmod(VALUE x, VALUE y);
 VALUE rb_int_and(VALUE x, VALUE y);
+VALUE rb_int_xor(VALUE x, VALUE y);
 VALUE rb_int_lshift(VALUE x, VALUE y);
+VALUE rb_int_rshift(VALUE x, VALUE y);
 VALUE rb_int_div(VALUE x, VALUE y);
 int rb_int_positive_p(VALUE num);
 int rb_int_negative_p(VALUE num);
@@ -111,7 +113,6 @@ RUBY_SYMBOL_EXPORT_BEGIN
 /* numeric.c (export) */
 RUBY_SYMBOL_EXPORT_END
 
-MJIT_SYMBOL_EXPORT_BEGIN
 VALUE rb_flo_div_flo(VALUE x, VALUE y);
 double ruby_float_mod(double x, double y);
 VALUE rb_float_equal(VALUE x, VALUE y);
@@ -125,7 +126,54 @@ VALUE rb_int_abs(VALUE num);
 VALUE rb_int_bit_length(VALUE num);
 VALUE rb_int_uminus(VALUE num);
 VALUE rb_int_comp(VALUE num);
-MJIT_SYMBOL_EXPORT_END
+
+// Unified 128-bit integer structures that work with or without native support:
+union rb_uint128 {
+#ifdef WORDS_BIGENDIAN
+    struct {
+        uint64_t high;
+        uint64_t low;
+    } parts;
+#else
+    struct {
+        uint64_t low;
+        uint64_t high;
+    } parts;
+#endif
+#ifdef HAVE_UINT128_T
+    uint128_t value;
+#endif
+};
+typedef union rb_uint128 rb_uint128_t;
+
+union rb_int128 {
+#ifdef WORDS_BIGENDIAN
+    struct {
+        uint64_t high;
+        uint64_t low;
+    } parts;
+#else
+    struct {
+        uint64_t low;
+        uint64_t high;
+    } parts;
+#endif
+#ifdef HAVE_UINT128_T
+    int128_t value;
+#endif
+};
+typedef union rb_int128 rb_int128_t;
+
+union uint128_int128_conversion {
+    rb_uint128_t uint128;
+    rb_int128_t int128;
+};
+
+// Conversion functions for 128-bit integers:
+rb_uint128_t rb_numeric_to_uint128(VALUE x);
+rb_int128_t rb_numeric_to_int128(VALUE x);
+VALUE rb_uint128_to_numeric(rb_uint128_t n);
+VALUE rb_int128_to_numeric(rb_int128_t n);
 
 static inline bool
 INT_POSITIVE_P(VALUE num)
@@ -160,7 +208,7 @@ rb_num_compare_with_zero(VALUE num, ID mid)
 {
     VALUE zero = INT2FIX(0);
     VALUE r = rb_check_funcall(num, mid, 1, &zero);
-    if (r == Qundef) {
+    if (RB_UNDEF_P(r)) {
         rb_cmperr(num, zero);
     }
     return r;