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; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
define void @f(i1 %c) {
; CHECK-LABEL: Classifying expressions for: @f
entry:
%start = select i1 %c, i32 100, i32 0
%step = select i1 %c, i32 -1, i32 1
br label %loop
loop:
%iv = phi i32 [ %start, %entry ], [ %iv.dec, %loop ]
%iv.tc = phi i32 [ 0, %entry ], [ %iv.tc.inc, %loop ]
%iv.tc.inc = add i32 %iv.tc, 1
%iv.dec = add nsw i32 %iv, %step
%iv.sext = sext i32 %iv to i64
; CHECK: %iv.sext = sext i32 %iv to i64
; CHECK-NEXT: --> {(sext i32 %start to i64),+,(sext i32 %step to i64)}<nsw><%loop>
%be = icmp ne i32 %iv.tc.inc, 100
br i1 %be, label %loop, label %leave
leave:
ret void
}
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