[llvm] [VPlan] Fold common edges away in convertPhisToBlends (PR #150368)

[Ramkumar Ramachandra via llvm-commits]

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@@ -226,6 +231,20 @@ void VPPredicator::createSwitchEdgeMasks(VPInstruction *SI) {
   setEdgeMask(Src, DefaultDst, DefaultMask);
 }
 
+VPValue *VPPredicator::findCommonEdgeMask(const VPWidenPHIRecipe *PhiR) const {
+  using namespace llvm::VPlanPatternMatch;
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artagnon wrote:

I would probably hoist this (and the other instance).

https://github.com/llvm/llvm-project/pull/150368