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# Code Organization

Header files in include are public APIs that share across modules.
There can be internal header files within each module that sit in src.

## Modules
- arith: Arithmetic expression and set simplification.
- auto\_scheduler: The template-free auto-tuning module.
- autotvm: The template-based auto-tuning module.
- contrib: Contrib extension libraries.
- driver: Compilation driver APIs.
- ir: Common IR infrastructure.
- node: The base infra for IR/AST nodes that is dialect independent.
- relay: Relay IR, high-level optimizations.
- runtime: Minimum runtime related codes.
- support: Internal support utilities.
- target: Hardware targets.
- tir: Tensor IR, low-level optimizations.
- te: Tensor expression DSL.
- topi: Tensor Operator Inventory.