[llvm] [VPlan] Retain exit conditions and edges in initial VPlan (NFC). (PR #137709)

[via llvm-commits]

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@@ -302,6 +304,7 @@ compound=true
       "  EMIT store ir\<%res\>, ir\<%arr.idx\>\l" +
       "  EMIT ir\<%iv.next\> = add ir\<%iv\>, ir\<1\>\l" +
       "  EMIT ir\<%exitcond\> = icmp ir\<%iv.next\>, ir\<%N\>\l" +
+      "  EMIT vp\<%3\> = not ir\<%exitcond\>\l" +
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ayalz wrote:

Should vp%3 be used, also above.

https://github.com/llvm/llvm-project/pull/137709