[llvm] [VPlan] Materialize VectorTripCount in narrowInterleaveGroups. (PR #182146)

[Florian Hahn via llvm-commits]

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@@ -761,6 +758,121 @@ loop:
 exit:
   ret void
 }
+
+; Test with induction live-out to verify exit value is correctly computed.
+define i64 @test_4xi64_induction_live_out(ptr noalias %data, ptr noalias %factor, i64 noundef %n) {
+; CHECK-LABEL: define i64 @test_4xi64_induction_live_out(
+; CHECK-SAME: ptr noalias [[DATA:%.*]], ptr noalias [[FACTOR:%.*]], i64 noundef [[N:%.*]]) #[[ATTR0]] {
+; CHECK-NEXT:  [[ENTRY:.*]]:
+; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16
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fhahn wrote:

Yep, the check is currently still using the original VF. Will check how to also handle this as follow-up

https://github.com/llvm/llvm-project/pull/182146