[llvm] [VPlan] Use BlockFrequencyInfo in getPredBlockCostDivisor (PR #158690)

[Luke Lau via llvm-commits]

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@@ -2875,6 +2866,18 @@ bool LoopVectorizationCostModel::isPredicatedInst(Instruction *I) const {
   }
 }
 
+unsigned LoopVectorizationCostModel::getPredBlockCostDivisor(
+    TargetTransformInfo::TargetCostKind CostKind, const BasicBlock *BB) const {
+  if (CostKind == TTI::TCK_CodeSize)
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lukel97 wrote:

Turns out that this check prevents the need to compute BlockFrequencyInfo in a good few changes and helps with compile time so I've added it back in f2b5fce096c35271ddc47f70230e0435f3569d24

https://github.com/llvm/llvm-project/pull/158690