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; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
; This loop has no preheader, multiple backedges, etc., but ScalarEvolution
; should still be able to analyze it.
; CHECK: %i = phi i64 [ 5, %entry ], [ 5, %alt ], [ %i.next, %loop.a ], [ %i.next, %loop.b ]
; CHECK-NEXT: --> {5,+,1}<%loop>
define void @foo(i1 %p, i1 %q, i1 %s, i1 %u) {
entry:
br i1 %p, label %loop, label %alt
alt:
br i1 %s, label %loop, label %exit
loop:
%i = phi i64 [ 5, %entry ], [ 5, %alt ], [ %i.next, %loop.a ], [ %i.next, %loop.b ]
%i.next = add i64 %i, 1
br i1 %q, label %loop.a, label %loop.b
loop.a:
br label %loop
loop.b:
br i1 %u, label %loop, label %exit
exit:
ret void
}
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