1; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=0 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK0  < %t
2; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=4 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK4  < %t
3; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=8 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK8  < %t
4
5declare void @ext(i32)
6
7define i32 @jt2(i32 %a, i32 %b) {
8entry:
9  switch i32 %a, label %return [
10    i32 1, label %bb1
11    i32 2, label %bb2
12  ]
13; CHECK-LABEL: function jt2:
14; CHECK0-NEXT: Jump Tables:
15; CHECK0-NEXT: jt#0:
16; CHECK0-NOT: jt#1:
17; CHECK4-NOT: Jump Tables:
18; CHECK8-NOT: Jump Tables:
19
20bb1: tail call void @ext(i32 0) br label %return
21bb2: tail call void @ext(i32 2) br label %return
22
23return: ret i32 %b
24}
25
26define i32 @jt4(i32 %a, i32 %b) {
27entry:
28  switch i32 %a, label %return [
29    i32 1, label %bb1
30    i32 2, label %bb2
31    i32 3, label %bb3
32    i32 4, label %bb4
33  ]
34; CHECK-LABEL: function jt4:
35; CHECK0-NEXT: Jump Tables:
36; CHECK0-NEXT: jt#0:
37; CHECK0-NOT: jt#1:
38; CHECK4-NEXT: Jump Tables:
39; CHECK4-NEXT: jt#0:
40; CHECK4-NOT: jt#1:
41; CHECK8-NOT: Jump Tables:
42
43bb1: tail call void @ext(i32 0) br label %return
44bb2: tail call void @ext(i32 2) br label %return
45bb3: tail call void @ext(i32 4) br label %return
46bb4: tail call void @ext(i32 6) br label %return
47
48return: ret i32 %b
49}
50
51define i32 @jt8(i32 %a, i32 %b) {
52entry:
53  switch i32 %a, label %return [
54    i32 1, label %bb1
55    i32 2, label %bb2
56    i32 3, label %bb3
57    i32 4, label %bb4
58    i32 5, label %bb5
59    i32 6, label %bb6
60    i32 7, label %bb7
61    i32 8, label %bb8
62  ]
63; CHECK-LABEL: function jt8:
64; CHECK-NEXT: Jump Tables:
65; CHECK-NEXT: jt#0:
66; CHECK-NOT: jt#1:
67
68bb1: tail call void @ext(i32 0) br label %return
69bb2: tail call void @ext(i32 2) br label %return
70bb3: tail call void @ext(i32 4) br label %return
71bb4: tail call void @ext(i32 6) br label %return
72bb5: tail call void @ext(i32 8) br label %return
73bb6: tail call void @ext(i32 10) br label %return
74bb7: tail call void @ext(i32 12) br label %return
75bb8: tail call void @ext(i32 14) br label %return
76
77return: ret i32 %b
78}
79
80