zhiics commented on issue #4922: [Relay][pass] call graph for relay URL: https://github.com/apache/incubator-tvm/pull/4922#issuecomment-591135041 @anijain2305 Thanks for reviewing. Call graph is usually used for inter-procedural level analysis. For example, you might have multiple functions that form a call chain (a->b->c). In this case, we need to think about the orders of them when performing some optimizations. For inlining, we need to inline c to b first and then b->a. We will have multiple functions in a module in many cases. One most common case is that whenever you use functions in prelude, you may have multiple functions in a module.
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