[GitHub] [tvm] Hzfengsy commented on a diff in pull request #13906: [tir] fix buffer_decl buffer allocation
Hzfengsy commented on code in PR #13906:
URL: https://github.com/apache/tvm/pull/13906#discussion_r1094699143
##
tests/python/unittest/test_tir_transform_plan_update_buffer_allocation_location.py:
##
@@ -416,5 +416,26 @@ def test_allocate_const_after_tensorize():
_ = seq(sch.mod)
+def test_buffer_decl_allocation():
+"""
+Confirm a fix to
+`src/tir/transforms/plan_update_buffer_allocation_location.cc`
+in which a declared buffer was erroneously duplicated, resulting in a
+TIR-compilation failure.
+"""
+
+@tvm.script.ir_module
+class IRMod:
+@T.prim_func
+def func(a: T.Ptr[T.float32]):
+T.func_attr({"global_symbol": "main", "tir.noalias": True})
+A = T.buffer_decl(1, "float32", data=a)
+for i in range(1):
+A[i] = 0
+
+ir_mod = IRMod
+built_mod = tvm.build(ir_mod)
Review Comment:
It would be great to make the test "unit" enough, i.e., only test the
related pass instead of a whole build workflow.
One of the common practices is to test the IRModule before and after the
pass. Please see the test case `test_1D_cascade_op_rolling_buffer()` in the
same file.
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[GitHub] [tvm] Hzfengsy commented on a diff in pull request #13906: [tir] fix buffer_decl buffer allocation
Hzfengsy commented on code in PR #13906:
URL: https://github.com/apache/tvm/pull/13906#discussion_r1094665278
##
src/tir/transforms/plan_update_buffer_allocation_location.cc:
##
@@ -111,6 +112,12 @@ class BufferAllocationLocator : public StmtExprMutator {
collector(func->body);
unmanaged_allocations_ = collector.unmanaged_allocations;
+for (Var param : func->params) {
Review Comment:
```suggestion
for (const Var& param : func->params) {
```
##
tests/python/unittest/test_buffer_decl.py:
##
@@ -0,0 +1,44 @@
+# 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
Review Comment:
Could you please add a testcase in
`tests/python/unittest/test_tir_transform_plan_update_buffer_allocation_location.py`
as the code changes are in the related file?
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