; LLVM IR from wuzhouhui/leetcode :: 1_two_sum (twoSum)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.astru = type { i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local ptr @twoSum(ptr noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = icmp slt i32 %14, 2
  br i1 %15, label %16, label %17

16:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  br label %134

17:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = mul i64 %19, 8
  %21 = call noalias ptr @malloc(i64 noundef %20) #6
  store ptr %21, ptr %12, align 8, !tbaa !5
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %22

22:                                               ; preds = %43, %17
  %23 = load i32, ptr %9, align 4, !tbaa !9
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %26, label %46

26:                                               ; preds = %22
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = load i32, ptr %9, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds i32, ptr %27, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !9
  %32 = load ptr, ptr %12, align 8, !tbaa !5
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds %struct.astru, ptr %32, i64 %34
  %36 = getelementptr inbounds %struct.astru, ptr %35, i32 0, i32 0
  store i32 %31, ptr %36, align 4, !tbaa !11
  %37 = load i32, ptr %9, align 4, !tbaa !9
  %38 = load ptr, ptr %12, align 8, !tbaa !5
  %39 = load i32, ptr %9, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds %struct.astru, ptr %38, i64 %40
  %42 = getelementptr inbounds %struct.astru, ptr %41, i32 0, i32 1
  store i32 %37, ptr %42, align 4, !tbaa !13
  br label %43

43:                                               ; preds = %26
  %44 = load i32, ptr %9, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %9, align 4, !tbaa !9
  br label %22, !llvm.loop !14

46:                                               ; preds = %22
  %47 = load ptr, ptr %12, align 8, !tbaa !5
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  call void @qsort(ptr noundef %47, i64 noundef %49, i64 noundef 8, ptr noundef @strucmp)
  store i32 0, ptr %9, align 4, !tbaa !9
  %50 = load i32, ptr %6, align 4, !tbaa !9
  %51 = sub nsw i32 %50, 1
  store i32 %51, ptr %10, align 4, !tbaa !9
  br label %52

52:                                               ; preds = %85, %46
  %53 = load i32, ptr %9, align 4, !tbaa !9
  %54 = load i32, ptr %10, align 4, !tbaa !9
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %56, label %86

56:                                               ; preds = %52
  %57 = load ptr, ptr %12, align 8, !tbaa !5
  %58 = load i32, ptr %9, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds %struct.astru, ptr %57, i64 %59
  %61 = getelementptr inbounds %struct.astru, ptr %60, i32 0, i32 0
  %62 = load i32, ptr %61, align 4, !tbaa !11
  %63 = load ptr, ptr %12, align 8, !tbaa !5
  %64 = load i32, ptr %10, align 4, !tbaa !9
  %65 = sext i32 %64 to i64
  %66 = getelementptr inbounds %struct.astru, ptr %63, i64 %65
  %67 = getelementptr inbounds %struct.astru, ptr %66, i32 0, i32 0
  %68 = load i32, ptr %67, align 4, !tbaa !11
  %69 = add nsw i32 %62, %68
  store i32 %69, ptr %11, align 4, !tbaa !9
  %70 = load i32, ptr %11, align 4, !tbaa !9
  %71 = load i32, ptr %7, align 4, !tbaa !9
  %72 = icmp sgt i32 %70, %71
  br i1 %72, label %73, label %76

73:                                               ; preds = %56
  %74 = load i32, ptr %10, align 4, !tbaa !9
  %75 = add nsw i32 %74, -1
  store i32 %75, ptr %10, align 4, !tbaa !9
  br label %85

76:                                               ; preds = %56
  %77 = load i32, ptr %11, align 4, !tbaa !9
  %78 = load i32, ptr %7, align 4, !tbaa !9
  %79 = icmp slt i32 %77, %78
  br i1 %79, label %80, label %83

80:                                               ; preds = %76
  %81 = load i32, ptr %9, align 4, !tbaa !9
  %82 = add nsw i32 %81, 1
  store i32 %82, ptr %9, align 4, !tbaa !9
  br label %84

83:                                               ; preds = %76
  br label %86

84:                                               ; preds = %80
  br label %85

85:                                               ; preds = %84, %73
  br label %52, !llvm.loop !16

86:                                               ; preds = %83, %52
  %87 = load i32, ptr %11, align 4, !tbaa !9
  %88 = load i32, ptr %7, align 4, !tbaa !9
  %89 = icmp ne i32 %87, %88
  br i1 %89, label %90, label %91

90:                                               ; preds = %86
  store ptr null, ptr %4, align 8
  store i32 1, ptr %13, align 4
  br label %133

91:                                               ; preds = %86
  %92 = call noalias ptr @malloc(i64 noundef 8) #6
  store ptr %92, ptr %8, align 8, !tbaa !5
  %93 = load ptr, ptr %12, align 8, !tbaa !5
  %94 = load i32, ptr %9, align 4, !tbaa !9
  %95 = sext i32 %94 to i64
  %96 = getelementptr inbounds %struct.astru, ptr %93, i64 %95
  %97 = getelementptr inbounds %struct.astru, ptr %96, i32 0, i32 1
  %98 = load i32, ptr %97, align 4, !tbaa !13
  %99 = add nsw i32 %98, 1
  %100 = load ptr, ptr %8, align 8, !tbaa !5
  %101 = getelementptr inbounds i32, ptr %100, i64 0
  store i32 %99, ptr %101, align 4, !tbaa !9
  %102 = load ptr, ptr %12, align 8, !tbaa !5
  %103 = load i32, ptr %10, align 4, !tbaa !9
  %104 = sext i32 %103 to i64
  %105 = getelementptr inbounds %struct.astru, ptr %102, i64 %104
  %106 = getelementptr inbounds %struct.astru, ptr %105, i32 0, i32 1
  %107 = load i32, ptr %106, align 4, !tbaa !13
  %108 = add nsw i32 %107, 1
  %109 = load ptr, ptr %8, align 8, !tbaa !5
  %110 = getelementptr inbounds i32, ptr %109, i64 1
  store i32 %108, ptr %110, align 4, !tbaa !9
  %111 = load ptr, ptr %12, align 8, !tbaa !5
  call void @free(ptr noundef %111) #5
  %112 = load ptr, ptr %8, align 8, !tbaa !5
  %113 = getelementptr inbounds i32, ptr %112, i64 0
  %114 = load i32, ptr %113, align 4, !tbaa !9
  %115 = load ptr, ptr %8, align 8, !tbaa !5
  %116 = getelementptr inbounds i32, ptr %115, i64 1
  %117 = load i32, ptr %116, align 4, !tbaa !9
  %118 = icmp sgt i32 %114, %117
  br i1 %118, label %119, label %131

119:                                              ; preds = %91
  %120 = load ptr, ptr %8, align 8, !tbaa !5
  %121 = getelementptr inbounds i32, ptr %120, i64 0
  %122 = load i32, ptr %121, align 4, !tbaa !9
  store i32 %122, ptr %9, align 4, !tbaa !9
  %123 = load ptr, ptr %8, align 8, !tbaa !5
  %124 = getelementptr inbounds i32, ptr %123, i64 1
  %125 = load i32, ptr %124, align 4, !tbaa !9
  %126 = load ptr, ptr %8, align 8, !tbaa !5
  %127 = getelementptr inbounds i32, ptr %126, i64 0
  store i32 %125, ptr %127, align 4, !tbaa !9
  %128 = load i32, ptr %9, align 4, !tbaa !9
  %129 = load ptr, ptr %8, align 8, !tbaa !5
  %130 = getelementptr inbounds i32, ptr %129, i64 1
  store i32 %128, ptr %130, align 4, !tbaa !9
  br label %131

131:                                              ; preds = %119, %91
  %132 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %132, ptr %4, align 8
  store i32 1, ptr %13, align 4
  br label %133

133:                                              ; preds = %131, %90
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %134

134:                                              ; preds = %133, %16
  %135 = load ptr, ptr %4, align 8
  ret ptr %135
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

declare void @qsort(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare hidden i32 @strucmp(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"astru", !10, i64 0, !10, i64 4}
!13 = !{!12, !10, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.astru = type { i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @twoSum(ptr nocapture noundef readonly %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp slt i32 %1, 2
  br i1 %4, label %50, label %5

5:                                                ; preds = %3
  %6 = zext nneg i32 %1 to i64
  %7 = shl nuw nsw i64 %6, 3
  %8 = tail call noalias ptr @malloc(i64 noundef %7) #4
  %min.iters.check = icmp ult i32 %1, 4
  br i1 %min.iters.check, label %scalar.ph.preheader, label %vector.ph

vector.ph:                                        ; preds = %5
  %n.vec = and i64 %6, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.ind = phi <2 x i32> [ <i32 0, i32 1>, %vector.ph ], [ %vec.ind.next, %vector.body ]
  %step.add = add <2 x i32> %vec.ind, <i32 2, i32 2>
  %9 = or disjoint i64 %index, 2
  %10 = getelementptr inbounds i32, ptr %0, i64 %index
  %11 = getelementptr inbounds i8, ptr %10, i64 8
  %wide.load = load <2 x i32>, ptr %10, align 4, !tbaa !5
  %wide.load66 = load <2 x i32>, ptr %11, align 4, !tbaa !5
  %12 = getelementptr inbounds %struct.astru, ptr %8, i64 %index
  %13 = getelementptr inbounds %struct.astru, ptr %8, i64 %9
  %interleaved.vec = shufflevector <2 x i32> %wide.load, <2 x i32> %vec.ind, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
  store <4 x i32> %interleaved.vec, ptr %12, align 4, !tbaa !5
  %interleaved.vec67 = shufflevector <2 x i32> %wide.load66, <2 x i32> %step.add, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
  store <4 x i32> %interleaved.vec67, ptr %13, align 4, !tbaa !5
  %index.next = add nuw i64 %index, 4
  %vec.ind.next = add <2 x i32> %vec.ind, <i32 4, i32 4>
  %14 = icmp eq i64 %index.next, %n.vec
  br i1 %14, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %6
  br i1 %cmp.n, label %.lr.ph.preheader, label %scalar.ph.preheader

scalar.ph.preheader:                              ; preds = %middle.block, %5
  %indvars.iv.ph = phi i64 [ 0, %5 ], [ %n.vec, %middle.block ]
  br label %scalar.ph

scalar.ph:                                        ; preds = %scalar.ph.preheader, %scalar.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %scalar.ph ], [ %indvars.iv.ph, %scalar.ph.preheader ]
  %15 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = getelementptr inbounds %struct.astru, ptr %8, i64 %indvars.iv
  store i32 %16, ptr %17, align 4, !tbaa !13
  %18 = getelementptr inbounds i8, ptr %17, i64 4
  %19 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %19, ptr %18, align 4, !tbaa !15
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %6
  br i1 %exitcond.not, label %.lr.ph.preheader, label %scalar.ph, !llvm.loop !16

.lr.ph.preheader:                                 ; preds = %scalar.ph, %middle.block
  tail call void @qsort(ptr noundef nonnull %8, i64 noundef %6, i64 noundef 8, ptr noundef nonnull @strucmp) #5
  %20 = add nsw i32 %1, -1
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %35
  %.04657 = phi i32 [ %.147, %35 ], [ %20, %.lr.ph.preheader ]
  %.14956 = phi i32 [ %.2, %35 ], [ 0, %.lr.ph.preheader ]
  %21 = sext i32 %.14956 to i64
  %22 = getelementptr inbounds %struct.astru, ptr %8, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !13
  %24 = sext i32 %.04657 to i64
  %25 = getelementptr inbounds %struct.astru, ptr %8, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !13
  %27 = add nsw i32 %26, %23
  %28 = icmp sgt i32 %27, %2
  br i1 %28, label %29, label %31

29:                                               ; preds = %.lr.ph
  %30 = add nsw i32 %.04657, -1
  br label %35

31:                                               ; preds = %.lr.ph
  %32 = icmp slt i32 %27, %2
  br i1 %32, label %33, label %._crit_edge

33:                                               ; preds = %31
  %34 = add nsw i32 %.14956, 1
  br label %35

35:                                               ; preds = %33, %29
  %.2 = phi i32 [ %.14956, %29 ], [ %34, %33 ]
  %.147 = phi i32 [ %30, %29 ], [ %.04657, %33 ]
  %36 = icmp slt i32 %.2, %.147
  br i1 %36, label %.lr.ph, label %._crit_edge, !llvm.loop !17

._crit_edge:                                      ; preds = %35, %31
  %.149.lcssa.ph = phi i32 [ %.2, %35 ], [ %.14956, %31 ]
  %.046.lcssa.ph = phi i32 [ %.147, %35 ], [ %.04657, %31 ]
  %.not = icmp eq i32 %27, %2
  br i1 %.not, label %37, label %50

37:                                               ; preds = %._crit_edge
  %38 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #4
  %39 = sext i32 %.149.lcssa.ph to i64
  %40 = getelementptr inbounds %struct.astru, ptr %8, i64 %39, i32 1
  %41 = load i32, ptr %40, align 4, !tbaa !15
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %38, align 4, !tbaa !5
  %43 = sext i32 %.046.lcssa.ph to i64
  %44 = getelementptr inbounds %struct.astru, ptr %8, i64 %43, i32 1
  %45 = load i32, ptr %44, align 4, !tbaa !15
  %46 = add nsw i32 %45, 1
  %47 = getelementptr inbounds i8, ptr %38, i64 4
  store i32 %46, ptr %47, align 4, !tbaa !5
  tail call void @free(ptr noundef nonnull %8) #5
  %48 = icmp sgt i32 %41, %45
  br i1 %48, label %49, label %50

49:                                               ; preds = %37
  store i32 %46, ptr %38, align 4, !tbaa !5
  store i32 %42, ptr %47, align 4, !tbaa !5
  br label %50

50:                                               ; preds = %._crit_edge, %49, %37, %3
  %.1 = phi ptr [ null, %3 ], [ null, %._crit_edge ], [ %38, %49 ], [ %38, %37 ]
  ret ptr %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: nofree
declare void @qsort(ptr noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden i32 @strucmp(ptr noundef, ptr noundef) #0

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #3

attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nofree "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind allocsize(0) }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = !{!14, !6, i64 0}
!14 = !{!"astru", !6, i64 0, !6, i64 4}
!15 = !{!14, !6, i64 4}
!16 = distinct !{!16, !10, !12, !11}
!17 = distinct !{!17, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass