1; RUN: opt -gvn-hoist -S < %s | FileCheck %s
2
3; Check that urem is not hoisted.
4; CHECK-LABEL: @main
5; CHECK: urem
6; CHECK: urem
7; CHECK: urem
8
9@g_x_s = global i32 -470211272, align 4
10@g_z_s = global i32 2007237709, align 4
11@g_x_u = global i32 282475249, align 4
12@g_z_u = global i32 984943658, align 4
13@g_m = global i32 16807, align 4
14@res = common global i32 0, align 4
15
16; Function Attrs:
17define i64 @func() #0 {
18entry:
19  ret i64 1
20}
21
22; Function Attrs:
23define i32 @main() {
24entry:
25  %0 = load volatile i32, i32* @g_x_s, align 4
26  %1 = load volatile i32, i32* @g_z_s, align 4
27  %2 = load volatile i32, i32* @g_x_u, align 4
28  %3 = load volatile i32, i32* @g_z_u, align 4
29  %4 = load volatile i32, i32* @g_m, align 4
30  %call = call i64 @func() #4
31  %conv = sext i32 %1 to i64
32  %cmp = icmp ne i64 %call, %conv
33  br i1 %cmp, label %if.end, label %lor.lhs.false
34
35lor.lhs.false:
36  %div = udiv i32 %4, %1
37  %rem = urem i32 %0, %div
38  %cmp2 = icmp eq i32 %rem, 0
39  br i1 %cmp2, label %if.end, label %if.then
40
41if.then:
42  br label %cleanup
43
44if.end:
45  %call4 = call i64 @func() #4
46  %conv5 = zext i32 %3 to i64
47  %cmp6 = icmp ne i64 %call4, %conv5
48  br i1 %cmp6, label %if.end14, label %lor.lhs.false8
49
50lor.lhs.false8:
51  %div9 = udiv i32 %4, %3
52  %rem10 = urem i32 %0, %div9
53  %cmp11 = icmp eq i32 %rem10, 0
54  br i1 %cmp11, label %if.end14, label %if.then13
55
56if.then13:
57  br label %cleanup
58
59if.end14:
60  %call15 = call i64 @func() #4
61  %cmp17 = icmp ne i64 %call15, %conv
62  br i1 %cmp17, label %if.end25, label %lor.lhs.false19
63
64lor.lhs.false19:
65  %div20 = udiv i32 %4, %1
66  %rem21 = urem i32 %0, %div20
67  %cmp22 = icmp eq i32 %rem21, 0
68  br i1 %cmp22, label %if.end25, label %if.then24
69
70if.then24:
71  br label %cleanup
72
73if.end25:
74  br label %cleanup
75
76cleanup:
77  %retval.0 = phi i32 [ 0, %if.end25 ], [ 1, %if.then24 ], [ 1, %if.then13 ], [ 1, %if.then ]
78  ret i32 %retval.0
79}
80
81attributes #0 = { minsize noinline nounwind optsize uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
82