1; RUN: llc -O2 < %s
2; REQUIRES: asserts
3
4target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32"
5target triple = "hexagon-unknown--elf"
6
7%struct.cpumask = type { [1 x i32] }
8%struct.load_weight = type { i32, i32 }
9
10@sysctl_sched_latency = global i32 6000000, align 4
11@normalized_sysctl_sched_latency = global i32 6000000, align 4
12@sysctl_sched_tunable_scaling = global i8 1, align 1
13@sysctl_sched_min_granularity = global i32 750000, align 4
14@normalized_sysctl_sched_min_granularity = global i32 750000, align 4
15@sysctl_sched_wakeup_granularity = global i32 1000000, align 4
16@normalized_sysctl_sched_wakeup_granularity = global i32 1000000, align 4
17@sysctl_sched_migration_cost = constant i32 500000, align 4
18@sysctl_sched_shares_window = global i32 10000000, align 4
19@sysctl_sched_child_runs_first = common global i32 0, align 4
20@cpu_online_mask = external constant %struct.cpumask*
21
22; Function Attrs: noinline nounwind
23define void @sched_init_granularity() #0 {
24entry:
25  tail call fastcc void @update_sysctl()
26  ret void
27}
28
29; Function Attrs: noinline nounwind
30define internal fastcc void @update_sysctl() #0 {
31entry:
32  %call = tail call i32 @get_update_sysctl_factor()
33  %0 = load i32, i32* @normalized_sysctl_sched_min_granularity, align 4, !tbaa !1
34  %mul = mul i32 %0, %call
35  store i32 %mul, i32* @sysctl_sched_min_granularity, align 4, !tbaa !1
36  %1 = load i32, i32* @normalized_sysctl_sched_latency, align 4, !tbaa !1
37  %mul1 = mul i32 %1, %call
38  store i32 %mul1, i32* @sysctl_sched_latency, align 4, !tbaa !1
39  %2 = load i32, i32* @normalized_sysctl_sched_wakeup_granularity, align 4, !tbaa !1
40  %mul2 = mul i32 %2, %call
41  store i32 %mul2, i32* @sysctl_sched_wakeup_granularity, align 4, !tbaa !1
42  ret void
43}
44
45; Function Attrs: noinline nounwind
46define i32 @calc_delta_mine(i32 %delta_exec, i32 %weight, %struct.load_weight* nocapture %lw) #0 {
47entry:
48  %cmp = icmp ugt i32 %weight, 1
49  %conv = zext i32 %delta_exec to i64
50  br i1 %cmp, label %if.then, label %if.end, !prof !5
51
52if.then:                                          ; preds = %entry
53  %conv2 = zext i32 %weight to i64
54  %mul = mul i64 %conv2, %conv
55  br label %if.end
56
57if.end:                                           ; preds = %entry, %if.then
58  %tmp.0 = phi i64 [ %mul, %if.then ], [ %conv, %entry ]
59  %inv_weight = getelementptr inbounds %struct.load_weight, %struct.load_weight* %lw, i32 0, i32 1
60  %0 = load i32, i32* %inv_weight, align 4, !tbaa !6
61  %tobool4 = icmp eq i32 %0, 0
62  br i1 %tobool4, label %if.then5, label %if.end22
63
64if.then5:                                         ; preds = %if.end
65  %weight7 = getelementptr inbounds %struct.load_weight, %struct.load_weight* %lw, i32 0, i32 0
66  %1 = load i32, i32* %weight7, align 4, !tbaa !9
67  %lnot9 = icmp eq i32 %1, 0
68  br i1 %lnot9, label %if.then17, label %if.else19, !prof !10
69
70if.then17:                                        ; preds = %if.then5
71  store i32 -1, i32* %inv_weight, align 4, !tbaa !6
72  br label %if.end22
73
74if.else19:                                        ; preds = %if.then5
75  %div = udiv i32 -1, %1
76  store i32 %div, i32* %inv_weight, align 4, !tbaa !6
77  br label %if.end22
78
79if.end22:                                         ; preds = %if.end, %if.then17, %if.else19
80  %2 = phi i32 [ %0, %if.end ], [ -1, %if.then17 ], [ %div, %if.else19 ]
81  %cmp23 = icmp ugt i64 %tmp.0, 4294967295
82  br i1 %cmp23, label %if.then31, label %if.else37, !prof !10
83
84if.then31:                                        ; preds = %if.end22
85  %add = add i64 %tmp.0, 32768
86  %shr = lshr i64 %add, 16
87  %conv33 = zext i32 %2 to i64
88  %mul34 = mul i64 %conv33, %shr
89  %add35 = add i64 %mul34, 32768
90  %shr36 = lshr i64 %add35, 16
91  br label %if.end43
92
93if.else37:                                        ; preds = %if.end22
94  %conv39 = zext i32 %2 to i64
95  %mul40 = mul i64 %conv39, %tmp.0
96  %add41 = add i64 %mul40, 2147483648
97  %shr42 = lshr i64 %add41, 32
98  br label %if.end43
99
100if.end43:                                         ; preds = %if.else37, %if.then31
101  %tmp.1 = phi i64 [ %shr36, %if.then31 ], [ %shr42, %if.else37 ]
102  %cmp49 = icmp ult i64 %tmp.1, 2147483647
103  %3 = trunc i64 %tmp.1 to i32
104  %conv51 = select i1 %cmp49, i32 %3, i32 2147483647
105  ret i32 %conv51
106}
107
108declare i32 @get_update_sysctl_factor() #0
109declare i32 @__bitmap_weight(i32*, i32) #1
110
111attributes #0 = { noinline nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
112attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
113attributes #2 = { nounwind }
114
115!llvm.ident = !{!0}
116
117!0 = !{!"Clang 3.1"}
118!1 = !{!2, !2, i64 0}
119!2 = !{!"int", !3, i64 0}
120!3 = !{!"omnipotent char", !4, i64 0}
121!4 = !{!"Simple C/C++ TBAA"}
122!5 = !{!"branch_weights", i32 64, i32 4}
123!6 = !{!7, !8, i64 4}
124!7 = !{!"load_weight", !8, i64 0, !8, i64 4}
125!8 = !{!"long", !3, i64 0}
126!9 = !{!7, !8, i64 0}
127!10 = !{!"branch_weights", i32 4, i32 64}
128!11 = !{!12, !12, i64 0}
129!12 = !{!"any pointer", !3, i64 0}
130!13 = !{!3, !3, i64 0}
131!14 = !{i32 45854, i32 45878}
132