[Enhancement] Support debug print for unsigned char datatype (#145)

* Fix debug print buffer template for unsigned char type

- Update debug_print_buffer_value template specialization for unsigned char
- Modify test_tilelang_debug_print.py to include additional dtype tests
- Add test case for uint8 dtype in debug print buffer function

* Refactor debug print buffer template formatting for unsigned char

- Improve code formatting for debug_print_buffer_value template specialization
- Adjust line breaks and indentation for better readability
- Maintain consistent code style with other template specializations

src/tl_templates/cuda/debug.h

@@ -101,9 +101,9 @@ debug_print_buffer_value<signed char>(const char *msg, const char *buf_name,
 
 // Specialization for unsiged char type
 template <>
-__device__ void debug_print_buffer_value<char>(const char *msg,
-                                               const char *buf_name, int index,
-                                               char var) {
+__device__ void
+debug_print_buffer_value<unsigned char>(const char *msg, const char *buf_name,
+                                        int index, unsigned char var) {
   printf("msg='%s' BlockIdx=(%d, %d, %d), ThreadIdx=(%d, %d, %d): buffer=%s, "
          "index=%d, dtype=char value=%d\n",
          msg, blockIdx.x, blockIdx.y, blockIdx.z, threadIdx.x, threadIdx.y,

testing/python/debug/test_tilelang_debug_print.py

@@ -5,8 +5,7 @@ import tilelang.testing
 import tilelang.language as T
 
 
-def debug_print_buffer(M=16, N=16):
-    dtype = "float16"
+def debug_print_buffer(M=16, N=16, dtype="float16"):
 
     @T.prim_func
     def program(Q: T.Buffer((M, N), dtype)):
@@ -20,7 +19,9 @@ def debug_print_buffer(M=16, N=16):
 
 
 def test_debug_print_buffer():
-    debug_print_buffer(16, 16)
+    debug_print_buffer(16, 16, dtype="float")
+    debug_print_buffer(16, 16, dtype="float16")
+    debug_print_buffer(16, 16, dtype="uint8")
 
 
 def debug_print_buffer_conditional(M=16, N=16):