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Posted to commits@tvm.apache.org by GitBox <gi...@apache.org> on 2021/04/14 07:13:55 UTC
[GitHub] [tvm] xqdan commented on a change in pull request #7848: [TensorIR][M1c] LCA detector
xqdan commented on a change in pull request #7848:
URL: https://github.com/apache/tvm/pull/7848#discussion_r612985703
##########
File path: tests/python/unittest/test_tir_analysis_detect_buffer_access_lca.py
##########
@@ -0,0 +1,107 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+import tvm
+from tvm import tir
+from tvm.script import ty
+
+
+@tvm.script.tir
+def buffer_laod_store_func(a: ty.handle, b: ty.handle) -> None:
+ A = tir.match_buffer(a, (128, 128), "float32")
+ B = tir.match_buffer(b, (128, 128), "float32")
+ C = tir.alloc_buffer((128, 128), "float32")
+ D = tir.alloc_buffer((128, 128), "float32")
+ with tir.block([128, 128]) as [i, j]:
+ A[i, j] = tir.float32(0)
+ with tir.block([32, 32, tir.reduce_axis(0, 32)]) as [i, j, k]:
+ with tir.init():
+ for ii, jj in tir.grid(4, 4):
+ B[i * 4 + ii, j * 4 + jj] = A[i * 4 + ii, j * 4 + jj]
+ for ii, jj in tir.grid(4, 4):
+ for kk in range(0, 4):
+ B[i * 4 + ii, j * 4 + jj] += C[i * 4 + ii, k * 4 + kk]
+ for kk in range(0, 4):
+ B[i * 4 + ii, j * 4 + jj] += D[j * 4 + jj, k * 4 + kk] * C[i * 4 + ii, k * 4 + kk]
+
+
+@tvm.script.tir
+def buffer_opaque_access(b: ty.handle, c: ty.handle) -> None:
+ B = tir.match_buffer(b, [16, 16], "float32")
+ C = tir.match_buffer(c, [16, 16], "float32")
+
+ with tir.block([]):
+ tir.reads([])
+ tir.writes(B[0:16, 0:16])
+ A = tir.allocate([256], "float32", "global")
+ for i, j in tir.grid(16, 16):
+ tir.store(A, i * 16 + j, 1)
+ for i in range(0, 16):
+ for j in range(0, 16):
+ tir.evaluate(tir.load("float32", A, i * 16 + j))
+ for j in range(0, 16):
+ tir.evaluate(
+ tir.tvm_fill_fragment(B.data, 16, 16, 16, 0, tir.float32(0), dtype="handle")
+ )
+
+ for i, j in tir.grid(16, 16):
+ with tir.block([16, 16]) as [vi, vj]:
+ tir.bind(vi, i)
+ tir.bind(vj, j)
+ C[vi, vj] = B[vi, vj]
+
+
+def test_buffer_laod_store():
Review comment:
laod ->load
##########
File path: tests/python/unittest/test_tir_analysis_detect_buffer_access_lca.py
##########
@@ -0,0 +1,107 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+import tvm
+from tvm import tir
+from tvm.script import ty
+
+
+@tvm.script.tir
+def buffer_laod_store_func(a: ty.handle, b: ty.handle) -> None:
Review comment:
laod -> load
##########
File path: src/tir/analysis/buffer_access_lca_detector.cc
##########
@@ -0,0 +1,173 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*!
+ * \file tir/analysis/buffer_access_lca_detector.cc
+ * \brief Detect LCA of buffer access
+ */
+
+#include <tvm/tir/analysis.h>
+#include <tvm/tir/stmt_functor.h>
+
+#include "../../support/arena.h"
+
+namespace tvm {
+namespace tir {
+
+/*!
+ * \brief Detect the LCA position of Buffer access.
Review comment:
LCA = LowestCommonAncestor, or life-cycle analysis？ Add the full name of LCA would be better.
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