1target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
2target triple = "x86_64-unknown-linux-gnu"
3
4@fptr = internal unnamed_addr global i32 (i32)* @f2, align 8
5
6define dso_local i32 @foo(i32 %x) local_unnamed_addr {
7entry:
8  %0 = load i32 (i32)*, i32 (i32)** @fptr, align 8
9  %call = tail call i32 %0(i32 %x), !callees !0
10  ret i32 %call
11}
12
13define internal i32 @f2(i32 %x) {
14entry:
15  %tobool = icmp eq i32 %x, 0
16  br i1 %tobool, label %if.end, label %if.then
17
18if.then:                                          ; preds = %entry
19  store i32 (i32)* @f1, i32 (i32)** @fptr, align 8
20  %sub.i = add nsw i32 %x, -1
21  br label %if.end
22
23if.end:                                           ; preds = %entry, %if.then
24  %phi.call = phi i32 [ %sub.i, %if.then ], [ -1, %entry ]
25  ret i32 %phi.call
26}
27
28define internal i32 @f1(i32 %x) {
29entry:
30  %sub = add nsw i32 %x, -1
31  ret i32 %sub
32}
33
34!0 = !{i32 (i32)* @f1, i32 (i32)* @f2}
35