llvm-project

a3d2a6d7 - [VPlan] Run replaceSymbolicStrides on VPlan0 (NFCI). (#196840)

[VPlan] Run replaceSymbolicStrides on VPlan0 (NFCI). (#196840) Running replacceSymbolicStrides on VPlan0 means we only need to run it once, and also enables simplifications earlier on. It is also needed to be able to compute costs of the scalar VPlan0 early accurately, without hacks manual folds like in the legacy cost model. PR: https://github.com/llvm/llvm-project/pull/196840