[llvm] [VPlan] Add VPIRInstruction, use for exit block live-outs. (PR #100735)

[Florian Hahn via llvm-commits]

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@@ -1405,6 +1406,45 @@ class VPInstruction : public VPRecipeWithIRFlags {
   bool isSingleScalar() const;
 };
 
+/// A recipe to wrap on original IR instruction not to be modified during
+/// execution, execept for PHIs. For PHIs, a single VPValue operand is allowed,
+/// and it is used to add a new incoming value for the single predecessor VPBB.
+/// Expect PHIs, VPIRInstructions cannot have any operands.
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fhahn wrote:

Could do if preferred, but it would pull in additional complexity for relatively small gains?

https://github.com/llvm/llvm-project/pull/100735