1 ; RUN: llc -O2 < %s 2 ; REQUIRES: asserts 3 4 target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32" 5 target 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 23 define void @sched_init_granularity() #0 { 24 entry: 25 tail call fastcc void @update_sysctl() 26 ret void 27 } 28 29 ; Function Attrs: noinline nounwind 30 define internal fastcc void @update_sysctl() #0 { 31 entry: 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 46 define i32 @calc_delta_mine(i32 %delta_exec, i32 %weight, %struct.load_weight* nocapture %lw) #0 { 47 entry: 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 52 if.then: ; preds = %entry 53 %conv2 = zext i32 %weight to i64 54 %mul = mul i64 %conv2, %conv 55 br label %if.end 56 57 if.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 64 if.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 70 if.then17: ; preds = %if.then5 71 store i32 -1, i32* %inv_weight, align 4, !tbaa !6 72 br label %if.end22 73 74 if.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 79 if.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 84 if.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 93 if.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 99 100 if.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 } 107 108 declare i32 @get_update_sysctl_factor() #0 109 declare i32 @__bitmap_weight(i32*, i32) #1 110 111 attributes #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" } 112 attributes #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" } 113 attributes #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
