Nikita Popov 0c6bba71e3 [TargetPassConfig] Don't add alias analysis at optnone ...

When performing codegen at optnone, don't add alias analysis to
the pipeline. We don't need it, but it causes an unnecessary
dominator tree calculation.

I've also moved the module verifier call to the top so that a bunch
of disabled-at-optnone passes group more nicely.

Differential Revision: https://reviews.llvm.org/D80378

2020-05-23 10:35:03 +02:00

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