1; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
2
3%struct.anon = type { %struct.anon.0, %struct.anon.1 }
4%struct.anon.0 = type { i32 }
5%struct.anon.1 = type { i32 }
6
7@i = common global i32 0, align 4
8@b = common global i32* null, align 8
9@c = common global i32 0, align 4
10@a = common global i32 0, align 4
11@h = common global i32 0, align 4
12@g = common global i32 0, align 4
13@j = common global i32 0, align 4
14@f = common global %struct.anon zeroinitializer, align 4
15@d = common global i32 0, align 4
16@e = common global i32 0, align 4
17
18; Function Attrs: norecurse nounwind
19define signext i32 @fn1(i32* nocapture %p1, i32 signext %p2, i32* nocapture %p3) {
20entry:
21  %0 = load i32, i32* @i, align 4, !tbaa !1
22  %cond = icmp eq i32 %0, 8
23  br i1 %cond, label %if.end16, label %while.cond.preheader
24
25while.cond.preheader:                             ; preds = %entry
26  %1 = load i32*, i32** @b, align 8, !tbaa !5
27  %2 = load i32, i32* %1, align 4, !tbaa !1
28  %tobool18 = icmp eq i32 %2, 0
29  br i1 %tobool18, label %while.end, label %while.body.lr.ph
30
31while.body.lr.ph:                                 ; preds = %while.cond.preheader
32  %.pre = load i32, i32* @c, align 4, !tbaa !1
33  br label %while.body
34
35while.body:                                       ; preds = %while.body.backedge, %while.body.lr.ph
36  switch i32 %.pre, label %while.body.backedge [
37    i32 0, label %sw.bb1
38    i32 80, label %sw.bb1
39    i32 60, label %sw.bb1
40    i32 240, label %while.cond.backedge
41  ]
42
43while.body.backedge:                              ; preds = %while.body, %while.cond.backedge
44  br label %while.body
45
46sw.bb1:                                           ; preds = %while.body, %while.body, %while.body
47  store i32 2, i32* @a, align 4, !tbaa !1
48  br label %while.cond.backedge
49
50while.cond.backedge:                              ; preds = %while.body, %sw.bb1
51  store i32 4, i32* @a, align 4, !tbaa !1
52  %.pre19 = load i32, i32* %1, align 4, !tbaa !1
53  %tobool = icmp eq i32 %.pre19, 0
54  br i1 %tobool, label %while.end.loopexit, label %while.body.backedge
55
56while.end.loopexit:                               ; preds = %while.cond.backedge
57  br label %while.end
58
59while.end:                                        ; preds = %while.end.loopexit, %while.cond.preheader
60  %3 = load i32, i32* @h, align 4, !tbaa !1
61  %mul = mul nsw i32 %0, %3
62  %4 = load i32, i32* @g, align 4, !tbaa !1
63  %mul4 = mul nsw i32 %mul, %4
64  store i32 %mul4, i32* @j, align 4, !tbaa !1
65  %5 = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @f, i64 0, i32 0, i32 0), align 4, !tbaa !7
66  %tobool5 = icmp eq i32 %5, 0
67  br i1 %tobool5, label %if.end, label %if.then
68
69if.then:                                          ; preds = %while.end
70  %div = sdiv i32 %5, %mul
71  store i32 %div, i32* @g, align 4, !tbaa !1
72  br label %if.end
73
74if.end:                                           ; preds = %while.end, %if.then
75  %6 = phi i32 [ %4, %while.end ], [ %div, %if.then ]
76  %7 = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @f, i64 0, i32 1, i32 0), align 4, !tbaa !10
77  %tobool7 = icmp ne i32 %7, 0
78  %tobool8 = icmp ne i32 %mul4, 0
79  %or.cond = and i1 %tobool7, %tobool8
80  %tobool10 = icmp ne i32 %0, 0
81  %or.cond17 = and i1 %or.cond, %tobool10
82  br i1 %or.cond17, label %if.then11, label %if.end13
83
84if.then11:                                        ; preds = %if.end
85  store i32 %3, i32* @d, align 4, !tbaa !1
86  %8 = load i32, i32* @e, align 4, !tbaa !1
87  store i32 %8, i32* %p3, align 4, !tbaa !1
88  %.pre20 = load i32, i32* @g, align 4, !tbaa !1
89  br label %if.end13
90
91if.end13:                                         ; preds = %if.then11, %if.end
92  %9 = phi i32 [ %.pre20, %if.then11 ], [ %6, %if.end ]
93  %tobool14 = icmp eq i32 %9, 0
94  br i1 %tobool14, label %if.end16, label %if.then15
95
96if.then15:                                        ; preds = %if.end13
97  store i32 %p2, i32* %p1, align 4, !tbaa !1
98  br label %if.end16
99
100if.end16:                                         ; preds = %entry, %if.end13, %if.then15
101  ret i32 2
102}
103
104; CHECK: mfocrf {{[0-9]+}}
105
106!llvm.ident = !{!0}
107
108!0 = !{!"clang version 3.9.0 (trunk 261520)"}
109!1 = !{!2, !2, i64 0}
110!2 = !{!"int", !3, i64 0}
111!3 = !{!"omnipotent char", !4, i64 0}
112!4 = !{!"Simple C/C++ TBAA"}
113!5 = !{!6, !6, i64 0}
114!6 = !{!"any pointer", !3, i64 0}
115!7 = !{!8, !2, i64 0}
116!8 = !{!"", !9, i64 0, !9, i64 4}
117!9 = !{!"", !2, i64 0}
118!10 = !{!8, !2, i64 4}
119