1; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s
2; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
3
4declare i1 @use(i64)
5
6define void @f_0() {
7; CHECK-LABEL: Classifying expressions for: @f_0
8
9; CHECK:  %iv = phi i32 [ 0, %entry ], [ %iv.inc.nowrap, %be ]
10; CHECK-NEXT: -->  {0,+,1}<nuw><nsw><%loop>
11; CHECK: %iv.inc.maywrap = add i32 %iv, 1
12; CHECK-NEXT: -->  {1,+,1}<nuw><%loop>
13; CHECK:  %iv.inc.maywrap.sext = sext i32 %iv.inc.maywrap to i64
14; CHECK-NEXT:  -->  (sext i32 {1,+,1}<nuw><%loop> to i64)
15entry:
16  br label %loop
17
18loop:
19  %iv = phi i32 [ 0, %entry ], [ %iv.inc.nowrap, %be ]
20  %iv.inc.maywrap = add i32 %iv, 1
21  %iv.inc.maywrap.sext = sext i32 %iv.inc.maywrap to i64
22  %cond0 = call i1 @use(i64 %iv.inc.maywrap.sext)
23  br i1 %cond0, label %be, label %leave
24
25be:
26  %iv.inc.nowrap = add nsw i32 %iv, 1
27  %be.cond = call i1 @use(i64 0) ;; Get an unanalyzable value
28  br i1 %be.cond, label %loop, label %leave
29
30leave:
31  ret void
32}
33