1 ; RUN: llc -march=hexagon -O2 < %s
4 target triple = "hexagon-unknown--elf"
6 %struct.cpumask = type { [1 x i32] }
7 %struct.load_weight = type { i32, i32 }
9 @sysctl_sched_latency = global i32 6000000, align 4
10 @normalized_sysctl_sched_latency = global i32 6000000, align 4
11 @sysctl_sched_tunable_scaling = global i8 1, align 1
12 @sysctl_sched_min_granularity = global i32 750000, align 4
13 @normalized_sysctl_sched_min_granularity = global i32 750000, align 4
14 @sysctl_sched_wakeup_granularity = global i32 1000000, align 4
15 @normalized_sysctl_sched_wakeup_granularity = global i32 1000000, align 4
16 @sysctl_sched_migration_cost = constant i32 500000, align 4
17 @sysctl_sched_shares_window = global i32 10000000, align 4
18 @sysctl_sched_child_runs_first = common global i32 0, align 4
19 @cpu_online_mask = external constant ptr
21 ; Function Attrs: noinline nounwind
22 define void @sched_init_granularity() #0 {
24 tail call fastcc void @update_sysctl()
28 ; Function Attrs: noinline nounwind
29 define internal fastcc void @update_sysctl() #0 {
31 %call = tail call i32 @get_update_sysctl_factor()
32 %0 = load i32, ptr @normalized_sysctl_sched_min_granularity, align 4, !tbaa !1
33 %mul = mul i32 %0, %call
34 store i32 %mul, ptr @sysctl_sched_min_granularity, align 4, !tbaa !1
35 %1 = load i32, ptr @normalized_sysctl_sched_latency, align 4, !tbaa !1
36 %mul1 = mul i32 %1, %call
37 store i32 %mul1, ptr @sysctl_sched_latency, align 4, !tbaa !1
38 %2 = load i32, ptr @normalized_sysctl_sched_wakeup_granularity, align 4, !tbaa !1
39 %mul2 = mul i32 %2, %call
40 store i32 %mul2, ptr @sysctl_sched_wakeup_granularity, align 4, !tbaa !1
44 ; Function Attrs: noinline nounwind
45 define i32 @calc_delta_mine(i32 %delta_exec, i32 %weight, ptr nocapture %lw) #0 {
47 %cmp = icmp ugt i32 %weight, 1
48 %conv = zext i32 %delta_exec to i64
49 br i1 %cmp, label %if.then, label %if.end, !prof !5
51 if.then: ; preds = %entry
52 %conv2 = zext i32 %weight to i64
53 %mul = mul i64 %conv2, %conv
56 if.end: ; preds = %entry, %if.then
57 %tmp.0 = phi i64 [ %mul, %if.then ], [ %conv, %entry ]
58 %inv_weight = getelementptr inbounds %struct.load_weight, ptr %lw, i32 0, i32 1
59 %0 = load i32, ptr %inv_weight, align 4, !tbaa !6
60 %tobool4 = icmp eq i32 %0, 0
61 br i1 %tobool4, label %if.then5, label %if.end22
63 if.then5: ; preds = %if.end
64 %1 = load i32, ptr %lw, align 4, !tbaa !9
65 %lnot9 = icmp eq i32 %1, 0
66 br i1 %lnot9, label %if.then17, label %if.else19, !prof !10
68 if.then17: ; preds = %if.then5
69 store i32 -1, ptr %inv_weight, align 4, !tbaa !6
72 if.else19: ; preds = %if.then5
73 %div = udiv i32 -1, %1
74 store i32 %div, ptr %inv_weight, align 4, !tbaa !6
77 if.end22: ; preds = %if.end, %if.then17, %if.else19
78 %2 = phi i32 [ %0, %if.end ], [ -1, %if.then17 ], [ %div, %if.else19 ]
79 %cmp23 = icmp ugt i64 %tmp.0, 4294967295
80 br i1 %cmp23, label %if.then31, label %if.else37, !prof !10
82 if.then31: ; preds = %if.end22
83 %add = add i64 %tmp.0, 32768
84 %shr = lshr i64 %add, 16
85 %conv33 = zext i32 %2 to i64
86 %mul34 = mul i64 %conv33, %shr
87 %add35 = add i64 %mul34, 32768
88 %shr36 = lshr i64 %add35, 16
91 if.else37: ; preds = %if.end22
92 %conv39 = zext i32 %2 to i64
93 %mul40 = mul i64 %conv39, %tmp.0
94 %add41 = add i64 %mul40, 2147483648
95 %shr42 = lshr i64 %add41, 32
98 if.end43: ; preds = %if.else37, %if.then31
99 %tmp.1 = phi i64 [ %shr36, %if.then31 ], [ %shr42, %if.else37 ]
100 %cmp49 = icmp ult i64 %tmp.1, 2147483647
101 %3 = trunc i64 %tmp.1 to i32
102 %conv51 = select i1 %cmp49, i32 %3, i32 2147483647
106 declare i32 @get_update_sysctl_factor() #0
107 declare i32 @__bitmap_weight(ptr, i32) #0
109 attributes #0 = { noinline nounwind }
111 !1 = !{!2, !2, i64 0}
112 !2 = !{!"int", !3, i64 0}
113 !3 = !{!"omnipotent char", !4, i64 0}
114 !4 = !{!"Simple C/C++ TBAA"}
115 !5 = !{!"branch_weights", i32 64, i32 4}
116 !6 = !{!7, !8, i64 4}
117 !7 = !{!"load_weight", !8, i64 0, !8, i64 4}
118 !8 = !{!"long", !3, i64 0}
119 !9 = !{!7, !8, i64 0}
120 !10 = !{!"branch_weights", i32 4, i32 64}
121 !11 = !{!12, !12, i64 0}
122 !12 = !{!"any pointer", !3, i64 0}
123 !13 = !{!3, !3, i64 0}
124 !14 = !{i32 45854, i32 45878}