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The following commit(s) were added to refs/heads/main by this push:
new 001ed57083 [Schedule] Fix LocalBuilder Check failed:
(index_map_func.has_value()) is false (#18525)
001ed57083 is described below
commit 001ed57083df084a591c2401cf892248b54ff3fc
Author: Asuka <[email protected]>
AuthorDate: Thu Dec 4 19:46:16 2025 +0800
[Schedule] Fix LocalBuilder Check failed: (index_map_func.has_value()) is
false (#18525)
This commit fixes tvm.error.InternalError: Check failed:
(index_map_func.has_value()) is false in
[#18472](https://github.com/apache/tvm/issues/18472)
**Why**
When using mma for MultiLevelTilingTensorCore, users must manually pass
tvm.tir.tensor_intrin as an initializer to register it in LocalBuilder.
This is inconsistent with the wmma workflow, where tvm.tir.tensor_intrin
is imported by default in
[tune_context.py](https://github.com/apache/tvm/blob/main/python/tvm/meta_schedule/tune_context.py#L109)
to ensure that the TensorIntrin required by wmma is registered in
advance. Additionally, the corresponding error message is not
straightforward, which can be confusing for new users who are not
familiar with TVM.
**How**
by adding import tensor_intrin in the default_build
---------
Co-authored-by: Balint Cristian <[email protected]>
Co-authored-by: gemini-code-assist[bot]
<176961590+gemini-code-assist[bot]@users.noreply.github.com>
---
python/tvm/meta_schedule/builder/local_builder.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/python/tvm/meta_schedule/builder/local_builder.py
b/python/tvm/meta_schedule/builder/local_builder.py
index 6bd8f10ed8..c5d8b21d89 100644
--- a/python/tvm/meta_schedule/builder/local_builder.py
+++ b/python/tvm/meta_schedule/builder/local_builder.py
@@ -254,6 +254,7 @@ def default_build(mod: IRModule, target: Target, _params:
Optional[Dict[str, Ten
"""
# pylint: disable=import-outside-toplevel
from tvm.driver import build as tvm_build
+ import tvm.tir.tensor_intrin # pylint: disable=unused-import
from tvm.tir.transform import RemoveWeightLayoutRewriteBlock
# pylint: enable=import-outside-toplevel
