; RUN: llvm-as < %s | opt -analyze -iv-users -disable-output | grep {Stride i64 {1,+,2}<loop>:}

; The value of %r is dependent on a polynomial iteration expression.

define i64 @foo(i64 %n) {
entry:
  br label %loop

loop:
  %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
  %indvar.next = add i64 %indvar, 1
  %c = icmp eq i64 %indvar.next, %n
  br i1 %c, label %exit, label %loop

exit:
  %r = mul i64 %indvar, %indvar
  ret i64 %r
}


Tweak this test to be a little less unusual.
; RUN: llvm-as < %s | opt -analyze -iv-users -disable-output | grep {Stride i64 {3,+,2}<loop>:}

; The value of %r is dependent on a polynomial iteration expression.

define i64 @foo(i64 %n) {
entry:
  br label %loop

loop:
  %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
  %indvar.next = add i64 %indvar, 1
  %c = icmp eq i64 %indvar.next, %n
  br i1 %c, label %exit, label %loop

exit:
  %r = mul i64 %indvar.next, %indvar.next
  ret i64 %r
}