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[VPlan] First step towards VPlan cost modeling. #67934
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Commits on Apr 28, 2024
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[VPlan] First step towards VPlan cost modeling.
This adds a new computeCost interface to VPReicpeBase and implements it for VPWidenRecipe and VPWidenIntOrFpInductionRecipe. It also adds getBestPlan function to LVP which computes the cost of all VPlans and picks the most profitable one together with the most profitable VF. For recipes that do not yet implement computeCost, the legacy cost for the underlying instruction is used. The VPlan selected by the VPlan cost model is executed and there is an assert to catch cases where the VPlan cost model and the legacy cost model disagree.
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Commits on May 9, 2024
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Commits on May 10, 2024
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Commits on May 21, 2024
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Commits on May 22, 2024
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