19 lines
450 B
LLVM
19 lines
450 B
LLVM
; RUN: opt < %s -analyze -iv-users | grep "{1,+,3,+,2}<%loop> (post-inc with loop %loop)"
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; The value of %r is dependent on a polynomial iteration expression.
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define i64 @foo(i64 %n) {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%indvar.next = add i64 %indvar, 1
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%c = icmp eq i64 %indvar.next, %n
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br i1 %c, label %exit, label %loop
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exit:
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%r = mul i64 %indvar.next, %indvar.next
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ret i64 %r
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}
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