1; RUN: opt -jump-threading < %s -S -o - | FileCheck %s
2
3; Reproducer for PR47297.
4
5; The pass did previously not report a correct Modified status in the case
6; where a terminator's condition was successfully constant folded, but there
7; were no other transformations done. This was caught by the pass return
8; status check that is hidden under EXPENSIVE_CHECKS.
9
10; CHECK-LABEL: entry:
11; CHECK-NEXT: br i1 icmp eq (i32 ptrtoint (i16* @a to i32), i32 0), label %overflow, label %cont
12
13@a = internal global i16 0
14
15define void @foo(i16 %d) {
16entry:
17  %.not = icmp eq i16 zext (i1 icmp ne (i32 ptrtoint (i16* @a to i32), i32 0) to i16), 0
18  br i1 %.not, label %overflow, label %cont
19
20overflow:                                         ; preds = %entry
21  call void @bar()
22  br label %cont
23
24cont:                                             ; preds = %overflow, %entry
25  ret void
26}
27
28declare void @bar()
29