# Quantized models and legalization pass

**URL:** <https://discuss.tvm.apache.org/t/quantized-models-and-legalization-pass/8253>\
**Category:** Development\
**Created:** [October 22, 2020, 10:34pm UTC](https://discuss.tvm.apache.org/t/quantized-models-and-legalization-pass/8253 "2020-10-22T22:34:22Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![giuseros](https://discuss.tvm.apache.org/user_avatar/discuss.tvm.apache.org/giuseros/32/803_2.png) [@giuseros](https://discuss.tvm.apache.org/u/giuseros)\
**Post date:** [October 30, 2020, 1:44pm UTC](https://discuss.tvm.apache.org/t/quantized-models-and-legalization-pass/8253/13 "2020-10-30T13:44:17Z")

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Maybe I am wrong, but are you sure that when `cfg.is_fallback` parameters like `cfg['tile_co']` are not defined? We usually set them to some default values (I think). But even if we don’t set them, IIUC they will get “some” value among the possible ones. Am I missing something?

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