Add int2 and longlong4 pack functions (#1129)

* Remove an incorrect check

* add fp8 pack function

* code lint

* minor fix

* minor fix

* minor fix

* Minor fix

* Minor fix

* add pack function

* code lint

* code lint

src/tl_templates/cuda/common.h

@@ -93,12 +93,22 @@ TL_DEVICE unsigned __pack_nv_bfloat162(const bfloat16_t x, const bfloat16_t y) {
   return (v1 << 16) | v0;
 }
 
-// Pack four char values
+// Pack four char values.
 TL_DEVICE int make_int(signed char x0, signed char x1, signed char x2,
                        signed char x3) {
   return (x3 << 24) | (x2 << 16) | (x1 << 8) | x0;
 }
 
+// Pack eight char values.
+TL_DEVICE int2 make_int2(signed char x0, signed char x1, signed char x2,
+                         signed char x3, signed char y0, signed char y1,
+                         signed char y2, signed char y3) {
+  int2 result;
+  result.x = make_int(x0, x1, x2, x3);
+  result.y = make_int(y0, y1, y2, y3);
+  return result;
+}
+
 // Pack sixteen char values.
 TL_DEVICE int4_t make_int4(signed char x0, signed char x1, signed char x2,
                            signed char x3, signed char y0, signed char y1,
@@ -114,6 +124,17 @@ TL_DEVICE int4_t make_int4(signed char x0, signed char x1, signed char x2,
   return result;
 }
 
+// Pack eight int values.
+TL_DEVICE longlong4 make_longlong4(int x0, int x1, int y0, int y1, int z0,
+                                   int z1, int w0, int w1) {
+  longlong4 result;
+  *((int2 *)&result.x) = make_int2(x0, x1);
+  *((int2 *)&result.y) = make_int2(y0, y1);
+  *((int2 *)&result.z) = make_int2(z0, z1);
+  *((int2 *)&result.w) = make_int2(w0, w1);
+  return result;
+}
+
 // Helper to cast SMEM pointer to unsigned
 TL_DEVICE uint32_t smem_ptr_to_uint(void const *const ptr) {
   return static_cast<uint32_t>(__cvta_generic_to_shared(ptr));