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Posted to commits@tvm.apache.org by GitBox <gi...@apache.org> on 2022/05/03 02:54:04 UTC

[GitHub] [tvm] wrongtest commented on pull request #11181: [LLVM] Fix a possible tbaa issue

wrongtest commented on PR #11181:
URL: https://github.com/apache/tvm/pull/11181#issuecomment-1115562343

   > indexed by buffer->data
   
   Current implementation is using the data field: `AddAliasInfo(instruction, buffer->data.get(), last_index)`, while (eg1) is about indices about different datatypes on same buffer data.
   
   (eg2) is something that though two buffer object have totally different buffer data, the accesses still have possible overlaps.
   https://github.com/apache/tvm/blob/f00c8db5ce8ec4e04736e5a6689ff9f65caeaeb5/tests/python/unittest/test_tir_usmp_transform_convert_pool_allocations_to_offsets.py#L442-L448
   
   Also find a related PR by @kparzysz-quic  https://github.com/apache/tvm/pull/6046 by key world search, but it is when the backend tir use `LoadNode`/`StoreNode`. 


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