[Fix] Fix buffer re-import typo in tilelang.languge (#1214)

* Fix Buffer re-import typo in tilelang.langugage

* fix lint error

testing/python/issue/test_tilelang_issue_1198.py

+import tilelang.testing
+import tilelang.language as T
+
+
+def test_issue_1198():
+
+    @T.prim_func
+    def foo(x: T.Buffer([
+        32,
+    ], "int32")):
+        pass
+
+
+if __name__ == '__main__':
+    tilelang.testing.main()

tilelang/language/builtin.py

@@ -8,7 +8,7 @@ from tilelang.utils.target import check_hip_availability
 from tvm import DataType, tir
 from tvm.runtime import convert
 from typing import Any
-from tvm.tir import PrimExpr, Var, Call, Buffer, BufferLoad
+from tvm.tir import PrimExpr, Var, Call, BufferLoad
 
 _IS_HIP_AVAILABLE = check_hip_availability()
 
@@ -430,7 +430,7 @@ def shuffle_elect(thread_extent: int) -> PrimExpr:
     return tir.call_intrin("bool", tir.op.Op.get("tl.tl_shuffle_elect"), thread_extent)
 
 
-def warpgroup_fence_operand(buffer_or_ptr: Buffer | PrimExpr,
+def warpgroup_fence_operand(buffer_or_ptr: tir.Buffer | PrimExpr,
                             offset: int | PrimExpr = 0,
                             num_regs: int | PrimExpr | None = None,
                             dtype: str | None = None):
@@ -456,7 +456,7 @@ def warpgroup_fence_operand(buffer_or_ptr: Buffer | PrimExpr,
     if isinstance(buffer_or_ptr, BufferLoad):
         raise TypeError("Expected a buffer handle or pointer expression, got BufferLoad.")
 
-    if isinstance(buffer_or_ptr, Buffer):
+    if isinstance(buffer_or_ptr, tir.Buffer):
         data_ptr = buffer_or_ptr.data
         inferred_dtype = buffer_or_ptr.dtype
         if dtype is not None and dtype != inferred_dtype:
@@ -599,7 +599,7 @@ def sync_grid():
 
 
 def initialize_wgmma_descriptor(
-    descriptor: Buffer,
+    descriptor: tir.Buffer,
     start_address: PrimExpr,
     layout_type_: int = 0,
     leading_byte_offset: int = 0,
@@ -607,10 +607,11 @@ def initialize_wgmma_descriptor(
 ) -> PrimExpr:
     """Initialize a WGMMA/UTCMMA shared-memory descriptor."""
 
-    if not isinstance(descriptor, (BufferLoad, Buffer)):
+    if not isinstance(descriptor, (BufferLoad, tir.Buffer)):
         raise TypeError("Descriptor must be a tvm.tir.Buffer or tvm.tir.BufferLoad.")
 
-    if isinstance(descriptor, Buffer) and (len(descriptor.shape) != 1 or descriptor.shape[0] != 1):
+    if isinstance(descriptor, tir.Buffer) and (len(descriptor.shape) != 1 or
+                                               descriptor.shape[0] != 1):
         raise ValueError("Descriptor must be a 1D buffer of size 1.")
 
     descriptor = descriptor if isinstance(descriptor, BufferLoad) else tir.BufferLoad(
@@ -629,7 +630,7 @@ def initialize_wgmma_descriptor(
 
 
 def initialize_tcgen05_descriptor(
-    descriptor: Buffer,
+    descriptor: tir.Buffer,
     start_address: PrimExpr,
     leading_byte_offset: int,
     stride_byte_offset: int,
@@ -639,10 +640,11 @@ def initialize_tcgen05_descriptor(
 ) -> PrimExpr:
     """Initialize a TCGEN05 shared-memory descriptor."""
 
-    if not isinstance(descriptor, (BufferLoad, Buffer)):
+    if not isinstance(descriptor, (BufferLoad, tir.Buffer)):
         raise TypeError("Descriptor must be a tvm.tir.Buffer or tvm.tir.BufferLoad.")
 
-    if isinstance(descriptor, Buffer) and (len(descriptor.shape) != 1 or descriptor.shape[0] != 1):
+    if isinstance(descriptor, tir.Buffer) and (len(descriptor.shape) != 1 or
+                                               descriptor.shape[0] != 1):
         raise ValueError("Descriptor must be a 1D buffer of size 1.")
 
     descriptor = descriptor if isinstance(descriptor, BufferLoad) else tir.BufferLoad(
@@ -673,10 +675,11 @@ def increase_descriptor_offset(descriptor: PrimExpr, offset: PrimExpr) -> PrimEx
     Returns:
         PrimExpr: A handle representing the modified descriptor.
     """
-    if not isinstance(descriptor, (BufferLoad, Buffer)):
+    if not isinstance(descriptor, (BufferLoad, tir.Buffer)):
         raise TypeError("Descriptor must be a tvm.tir.Buffer or tvm.tir.BufferLoad.")
 
-    if isinstance(descriptor, Buffer) and len(descriptor.shape) != 1 or descriptor.shape[0] != 1:
+    if isinstance(descriptor, tir.Buffer) and len(
+            descriptor.shape) != 1 or descriptor.shape[0] != 1:
         raise ValueError("Descriptor must be a 1D buffer of size 1.")
 
     descriptor = descriptor if isinstance(descriptor, BufferLoad) else tir.BufferLoad(