1; RUN: opt -indvars -disable-output < %s
2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
3
4declare i32 @putchar(i8) nounwind
5
6define void @t2(i1* %P) nounwind {
7; <label>:0
8  br label %1
9
10; <label>:1                                       ; preds = %1, %0
11  %2 = phi double [ 9.000000e+00, %0 ], [ %4, %1 ] ; <double> [#uses=1]
12  %3 = tail call i32 @putchar(i8 72)              ; <i32> [#uses=0]
13  %4 = fadd double %2, -1.000000e+00              ; <double> [#uses=2]
14  %5 = fcmp ult double %4, 0.000000e+00           ; <i1> [#uses=1]
15  store i1 %5, i1* %P
16  br i1 %5, label %6, label %1
17
18; <label>:6                                       ; preds = %1
19  ret void
20}
21
22; PR7562
23define void @fannkuch() nounwind {
24entry:                                              ; preds = %entry
25  br label %bb12
26
27bb12:                                             ; preds = %bb29, %entry
28  %i.1 = phi i32 [ undef, %entry ], [ %i.0, %bb29 ] ; <i32> [#uses=2]
29  %r.1 = phi i32 [ undef, %entry ], [ %r.0, %bb29 ] ; <i32> [#uses=2]
30  br i1 undef, label %bb13, label %bb24
31
32bb13:                                             ; preds = %bb12
33  br label %bb24
34
35bb24:                                             ; preds = %bb30, %bb13, %bb12
36  %i.2 = phi i32 [ %i.1, %bb13 ], [ %i.0, %bb30 ], [ %i.1, %bb12 ] ; <i32> [#uses=1]
37  %r.0 = phi i32 [ %r.1, %bb13 ], [ %2, %bb30 ], [ %r.1, %bb12 ] ; <i32> [#uses=3]
38  br label %bb28
39
40bb27:                                             ; preds = %bb28
41  %0 = add nsw i32 %i.0, 1                        ; <i32> [#uses=1]
42  br label %bb28
43
44bb28:                                             ; preds = %bb27, %bb26
45  %i.0 = phi i32 [ %i.2, %bb24 ], [ %0, %bb27 ]   ; <i32> [#uses=4]
46  %1 = icmp slt i32 %i.0, %r.0                    ; <i1> [#uses=1]
47  br i1 %1, label %bb27, label %bb29
48
49bb29:                                             ; preds = %bb28
50  br i1 undef, label %bb12, label %bb30
51
52bb30:                                             ; preds = %bb29
53  %2 = add nsw i32 %r.0, 1                        ; <i32> [#uses=1]
54  br label %bb24
55}
56
57; PR10770
58
59declare void @__go_panic() noreturn
60
61declare void @__go_undefer()
62
63declare i32 @__gccgo_personality_v0(i32, i64, i8*, i8*)
64
65define void @main.main() uwtable {
66entry:
67  invoke void @__go_panic() noreturn
68          to label %0 unwind label %"5.i"
69
70; <label>:0                                       ; preds = %entry
71  unreachable
72
73"3.i":                                            ; preds = %"7.i", %"5.i"
74  invoke void @__go_undefer()
75          to label %main.f.exit unwind label %"7.i"
76
77"5.i":                                            ; preds = %entry
78  %1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gccgo_personality_v0
79          catch i8* null
80  br label %"3.i"
81
82"7.i":                                            ; preds = %"3.i"
83  %2 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gccgo_personality_v0
84          catch i8* null
85  br label %"3.i"
86
87main.f.exit:                                      ; preds = %"3.i"
88  unreachable
89}
90
91
92; PR13967
93
94define void @f() nounwind ssp {
95bb:
96  br label %bb4
97
98bb4:
99  %tmp = phi i64 [ %tmp5, %bb7 ], [ undef, %bb ]
100  %tmp5 = add nsw i64 %tmp, 1
101  %extract.t1 = trunc i64 %tmp5 to i32
102  br i1 false, label %bb6, label %bb7
103
104bb6:
105  br label %bb7
106
107bb7:
108  %.off0 = phi i32 [ undef, %bb6 ], [ %extract.t1, %bb4 ]
109  %tmp8 = icmp eq i32 %.off0, 0
110  br i1 %tmp8, label %bb9, label %bb4
111
112bb9:
113  ret void
114}
115
116; PR12536
117define void @fn1() noreturn nounwind {
118entry:
119  br label %for.cond
120
121for.cond:                                         ; preds = %for.end, %entry
122  %b.0 = phi i32 [ undef, %entry ], [ %conv, %for.end ]
123  br label %for.cond1
124
125for.cond1:                                        ; preds = %for.cond1, %for.cond
126  %c.0 = phi i32 [ %b.0, %for.cond1 ], [ 0, %for.cond ]
127  br i1 undef, label %for.cond1, label %for.end
128
129for.end:                                          ; preds = %for.cond1
130  %cmp2 = icmp slt i32 %c.0, 1
131  %conv = zext i1 %cmp2 to i32
132  br label %for.cond
133}
134