[llvm] [LV] Create block in mask up-front if needed. (PR #76635)

[Florian Hahn via llvm-commits]

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@@ -120,6 +120,7 @@ bool VPRecipeBase::mayHaveSideEffects() const {
     return false;
   case VPInstructionSC:
     switch (cast<VPInstruction>(this)->getOpcode()) {
+    case Instruction::Or:
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fhahn wrote:

Yep it is technically independent but effectively dead code without this change, hence the direct inclusion here.

https://github.com/llvm/llvm-project/pull/76635