1; RUN: opt -S -simplifycfg < %s | FileCheck %s
2
3define i32 @speculate_vector_extract(i32 %d, <4 x i32> %v) #0 {
4; CHECK-LABEL: @speculate_vector_extract(
5; CHECK-NOT: br
6entry:
7  %conv = insertelement <4 x i32> undef, i32 %d, i32 0
8  %conv2 = insertelement <4 x i32> %conv, i32 %d, i32 1
9  %conv3 = insertelement <4 x i32> %conv2, i32 %d, i32 2
10  %conv4 = insertelement <4 x i32> %conv3, i32 %d, i32 3
11  %tmp6 = add nsw <4 x i32> %conv4, <i32 0, i32 -1, i32 -2, i32 -3>
12  %cmp = icmp eq <4 x i32> %tmp6, zeroinitializer
13  %cmp.ext = sext <4 x i1> %cmp to <4 x i32>
14  %tmp8 = extractelement <4 x i32> %cmp.ext, i32 0
15  %tobool = icmp eq i32 %tmp8, 0
16  br i1 %tobool, label %cond.else, label %cond.then
17
18return:                                           ; preds = %cond.end28
19  ret i32 %cond32
20
21cond.then:                                        ; preds = %entry
22  %tmp10 = extractelement <4 x i32> %v, i32 0
23  br label %cond.end
24
25cond.else:                                        ; preds = %entry
26  %tmp12 = extractelement <4 x i32> %v, i32 3
27  br label %cond.end
28
29cond.end:                                         ; preds = %cond.else, %cond.then
30  %cond = phi i32 [ %tmp10, %cond.then ], [ %tmp12, %cond.else ]
31  %tmp14 = extractelement <4 x i32> %cmp.ext, i32 1
32  %tobool15 = icmp eq i32 %tmp14, 0
33  br i1 %tobool15, label %cond.else17, label %cond.then16
34
35cond.then16:                                      ; preds = %cond.end
36  %tmp20 = extractelement <4 x i32> %v, i32 1
37  br label %cond.end18
38
39cond.else17:                                      ; preds = %cond.end
40  br label %cond.end18
41
42cond.end18:                                       ; preds = %cond.else17, %cond.then16
43  %cond22 = phi i32 [ %tmp20, %cond.then16 ], [ %cond, %cond.else17 ]
44  %tmp24 = extractelement <4 x i32> %cmp.ext, i32 2
45  %tobool25 = icmp eq i32 %tmp24, 0
46  br i1 %tobool25, label %cond.else27, label %cond.then26
47
48cond.then26:                                      ; preds = %cond.end18
49  %tmp30 = extractelement <4 x i32> %v, i32 2
50  br label %cond.end28
51
52cond.else27:                                      ; preds = %cond.end18
53  br label %cond.end28
54
55cond.end28:                                       ; preds = %cond.else27, %cond.then26
56  %cond32 = phi i32 [ %tmp30, %cond.then26 ], [ %cond22, %cond.else27 ]
57  br label %return
58}
59
60attributes #0 = { nounwind }
61