1; RUN: llc -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 < %s
2
3; rdar://10196296
4; ARM target specific dag combine created a cycle in DAG.
5
6define void @t() nounwind ssp {
7  %1 = load i64, i64* undef, align 4
8  %2 = shl i32 5, 0
9  %3 = zext i32 %2 to i64
10  %4 = and i64 %1, %3
11  %5 = lshr i64 %4, undef
12  switch i64 %5, label %8 [
13    i64 0, label %9
14    i64 1, label %6
15    i64 4, label %9
16    i64 5, label %7
17  ]
18
19; <label>:6                                       ; preds = %0
20  unreachable
21
22; <label>:7                                       ; preds = %0
23  unreachable
24
25; <label>:8                                       ; preds = %0
26  unreachable
27
28; <label>:9                                       ; preds = %0, %0
29  ret void
30}
31