[llvm] [LV] Support generating masks for switch terminators. (PR #99808)

[via llvm-commits]

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@@ -7839,6 +7850,60 @@ VPRecipeBuilder::mapToVPValues(User::op_range Operands) {
   return map_range(Operands, Fn);
 }
 
+void VPRecipeBuilder::createSwitchEdgeMasks(SwitchInst *SI) {
+  BasicBlock *Src = SI->getParent();
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ayalz wrote:

```suggestion
  BasicBlock *Src = SI->getParent();
  assert(!EdgeMaskCache.contains(Src) && "Edge masks already created");
```
?

https://github.com/llvm/llvm-project/pull/99808