[llvm] [VPlan] Add VPlan-based addMinIterCheck, replace ILV for non-epilogue. (PR #153643)

[Florian Hahn via llvm-commits]

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@@ -6,16 +6,21 @@ define void @switch4_default_common_dest_with_case(ptr %start, ptr %end) {
 ; CHECK-NEXT: ir<%0> = original trip-count
 ; CHECK-EMPTY:
 ; CHECK-NEXT: ir-bb<entry>:
-; CHECK-NEXT: Successor(s): ir-bb<scalar.ph>, ir-bb<vector.ph>
-; CHECK-EMPTY:
-; CHECK-NEXT: ir-bb<vector.ph>:
+; CHECK-NEXT:  IR %start2 = ptrtoint ptr %start to i64
+; CHECK-NEXT:  IR %end1 = ptrtoint ptr %end to i64
+; CHECK-NEXT:  IR %0 = sub i64 %end1, %start2
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fhahn wrote:

Yep

https://github.com/llvm/llvm-project/pull/153643