; LLVM IR from ShahjalalShohag/code-library :: Data Structures/KD Tree.ll (Z16nearest_neighborP7kd_node5pointRx)

; 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.point = type { [2 x i32] }
%struct.kd_node = type { i32, i32, %struct.point, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z16squared_distance5pointS_(i64, i64) #0

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

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %0, i64 %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #3 {
  %4 = alloca %struct.point, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca %struct.point, align 4
  %9 = alloca %struct.point, align 4
  %10 = alloca %struct.point, align 4
  %11 = alloca %struct.point, align 4
  %12 = alloca %struct.point, align 4
  %13 = alloca %struct.point, align 4
  %14 = getelementptr inbounds %struct.point, ptr %4, i32 0, i32 0
  store i64 %1, ptr %14, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp eq ptr %15, null
  br i1 %16, label %17, label %18

17:                                               ; preds = %3
  br label %121

18:                                               ; preds = %3
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.kd_node, ptr %19, i32 0, i32 3
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %45

23:                                               ; preds = %18
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.kd_node, ptr %24, i32 0, i32 4
  %26 = load ptr, ptr %25, align 8, !tbaa !13
  %27 = icmp eq ptr %26, null
  br i1 %27, label %28, label %45

28:                                               ; preds = %23
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.kd_node, ptr %29, i32 0, i32 2
  %31 = call noundef zeroext i1 @_ZNK5pointneERKS_(ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(8) %30)
  br i1 %31, label %32, label %44

32:                                               ; preds = %28
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.kd_node, ptr %34, i32 0, i32 2
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %8, ptr align 8 %35, i64 8, i1 false), !tbaa.struct !14
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !14
  %36 = getelementptr inbounds %struct.point, ptr %8, i32 0, i32 0
  %37 = load i64, ptr %36, align 4
  %38 = getelementptr inbounds %struct.point, ptr %9, i32 0, i32 0
  %39 = load i64, ptr %38, align 4
  %40 = call noundef i64 @_Z16squared_distance5pointS_(i64 %37, i64 %39)
  store i64 %40, ptr %7, align 8, !tbaa !16
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %42 = load i64, ptr %41, align 8, !tbaa !16
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  store i64 %42, ptr %43, align 8, !tbaa !16
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %44

44:                                               ; preds = %32, %28
  br label %121

45:                                               ; preds = %23, %18
  %46 = getelementptr inbounds %struct.point, ptr %4, i32 0, i32 0
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.kd_node, ptr %47, i32 0, i32 0
  %49 = load i32, ptr %48, align 8, !tbaa !18
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds [2 x i32], ptr %46, i64 0, i64 %50
  %52 = load i32, ptr %51, align 4, !tbaa !19
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.kd_node, ptr %53, i32 0, i32 1
  %55 = load i32, ptr %54, align 4, !tbaa !20
  %56 = icmp sle i32 %52, %55
  br i1 %56, label %57, label %89

57:                                               ; preds = %45
  %58 = load ptr, ptr %5, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.kd_node, ptr %58, i32 0, i32 3
  %60 = load ptr, ptr %59, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !14
  %61 = load ptr, ptr %6, align 8, !tbaa !5
  %62 = getelementptr inbounds %struct.point, ptr %10, i32 0, i32 0
  %63 = load i64, ptr %62, align 4
  call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %60, i64 %63, ptr noundef nonnull align 8 dereferenceable(8) %61)
  %64 = getelementptr inbounds %struct.point, ptr %4, i32 0, i32 0
  %65 = load ptr, ptr %5, align 8, !tbaa !5
  %66 = getelementptr inbounds %struct.kd_node, ptr %65, i32 0, i32 0
  %67 = load i32, ptr %66, align 8, !tbaa !18
  %68 = sext i32 %67 to i64
  %69 = getelementptr inbounds [2 x i32], ptr %64, i64 0, i64 %68
  %70 = load i32, ptr %69, align 4, !tbaa !19
  %71 = sitofp i32 %70 to double
  %72 = load ptr, ptr %6, align 8, !tbaa !5
  %73 = load i64, ptr %72, align 8, !tbaa !16
  %74 = call noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %73)
  %75 = fadd double %71, %74
  %76 = load ptr, ptr %5, align 8, !tbaa !5
  %77 = getelementptr inbounds %struct.kd_node, ptr %76, i32 0, i32 1
  %78 = load i32, ptr %77, align 4, !tbaa !20
  %79 = sitofp i32 %78 to double
  %80 = fcmp oge double %75, %79
  br i1 %80, label %81, label %88

81:                                               ; preds = %57
  %82 = load ptr, ptr %5, align 8, !tbaa !5
  %83 = getelementptr inbounds %struct.kd_node, ptr %82, i32 0, i32 4
  %84 = load ptr, ptr %83, align 8, !tbaa !13
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %11, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !14
  %85 = load ptr, ptr %6, align 8, !tbaa !5
  %86 = getelementptr inbounds %struct.point, ptr %11, i32 0, i32 0
  %87 = load i64, ptr %86, align 4
  call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %84, i64 %87, ptr noundef nonnull align 8 dereferenceable(8) %85)
  br label %88

88:                                               ; preds = %81, %57
  br label %121

89:                                               ; preds = %45
  %90 = load ptr, ptr %5, align 8, !tbaa !5
  %91 = getelementptr inbounds %struct.kd_node, ptr %90, i32 0, i32 4
  %92 = load ptr, ptr %91, align 8, !tbaa !13
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %12, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !14
  %93 = load ptr, ptr %6, align 8, !tbaa !5
  %94 = getelementptr inbounds %struct.point, ptr %12, i32 0, i32 0
  %95 = load i64, ptr %94, align 4
  call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %92, i64 %95, ptr noundef nonnull align 8 dereferenceable(8) %93)
  %96 = getelementptr inbounds %struct.point, ptr %4, i32 0, i32 0
  %97 = load ptr, ptr %5, align 8, !tbaa !5
  %98 = getelementptr inbounds %struct.kd_node, ptr %97, i32 0, i32 0
  %99 = load i32, ptr %98, align 8, !tbaa !18
  %100 = sext i32 %99 to i64
  %101 = getelementptr inbounds [2 x i32], ptr %96, i64 0, i64 %100
  %102 = load i32, ptr %101, align 4, !tbaa !19
  %103 = sitofp i32 %102 to double
  %104 = load ptr, ptr %6, align 8, !tbaa !5
  %105 = load i64, ptr %104, align 8, !tbaa !16
  %106 = call noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %105)
  %107 = fsub double %103, %106
  %108 = load ptr, ptr %5, align 8, !tbaa !5
  %109 = getelementptr inbounds %struct.kd_node, ptr %108, i32 0, i32 1
  %110 = load i32, ptr %109, align 4, !tbaa !20
  %111 = sitofp i32 %110 to double
  %112 = fcmp ole double %107, %111
  br i1 %112, label %113, label %120

113:                                              ; preds = %89
  %114 = load ptr, ptr %5, align 8, !tbaa !5
  %115 = getelementptr inbounds %struct.kd_node, ptr %114, i32 0, i32 3
  %116 = load ptr, ptr %115, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %13, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !14
  %117 = load ptr, ptr %6, align 8, !tbaa !5
  %118 = getelementptr inbounds %struct.point, ptr %13, i32 0, i32 0
  %119 = load i64, ptr %118, align 4
  call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %116, i64 %119, ptr noundef nonnull align 8 dereferenceable(8) %117)
  br label %120

120:                                              ; preds = %113, %89
  br label %121

121:                                              ; preds = %120, %88, %44, %17
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5pointneERKS_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef) #4

attributes #0 = { mustprogress 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress 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 #4 = { inlinehint mustprogress 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 16}
!10 = !{!"_ZTS7kd_node", !11, i64 0, !11, i64 4, !12, i64 8, !6, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTS5point", !7, i64 0}
!13 = !{!10, !6, i64 24}
!14 = !{i64 0, i64 8, !15}
!15 = !{!7, !7, i64 0}
!16 = !{!17, !17, i64 0}
!17 = !{!"long long", !7, i64 0}
!18 = !{!10, !11, i64 0}
!19 = !{!11, !11, i64 0}
!20 = !{!10, !11, i64 4}


; 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.point = type { [2 x i32] }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z16squared_distance5pointS_(i64, i64) local_unnamed_addr #0

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

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %0, i64 %1, ptr noundef nonnull align 8 dereferenceable(8) %2) local_unnamed_addr #0 {
  %4 = alloca %struct.point, align 8
  %5 = alloca i64, align 8
  store i64 %1, ptr %4, align 8
  %6 = icmp eq ptr %0, null
  br i1 %6, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %3, %tailrecurse.backedge
  %.tr31 = phi ptr [ %.tr.be, %tailrecurse.backedge ], [ %0, %3 ]
  %7 = getelementptr inbounds i8, ptr %.tr31, i64 16
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = icmp eq ptr %8, null
  br i1 %9, label %10, label %21

10:                                               ; preds = %.lr.ph
  %11 = getelementptr inbounds i8, ptr %.tr31, i64 24
  %12 = load ptr, ptr %11, align 8, !tbaa !12
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %21

14:                                               ; preds = %10
  %15 = getelementptr inbounds i8, ptr %.tr31, i64 8
  %16 = call noundef zeroext i1 @_ZNK5pointneERKS_(ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(8) %15)
  br i1 %16, label %17, label %.loopexit

17:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %.sroa.05.0.copyload = load i64, ptr %15, align 8, !tbaa !13
  %.sroa.04.0.copyload = load i64, ptr %4, align 8, !tbaa !13
  %18 = call noundef i64 @_Z16squared_distance5pointS_(i64 %.sroa.05.0.copyload, i64 %.sroa.04.0.copyload)
  store i64 %18, ptr %5, align 8, !tbaa !14
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %20 = load i64, ptr %19, align 8, !tbaa !14
  store i64 %20, ptr %2, align 8, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  br label %.loopexit

21:                                               ; preds = %10, %.lr.ph
  %22 = load i32, ptr %.tr31, align 8, !tbaa !16
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [2 x i32], ptr %4, i64 0, i64 %23
  %25 = load i32, ptr %24, align 4, !tbaa !17
  %26 = getelementptr inbounds i8, ptr %.tr31, i64 4
  %27 = load i32, ptr %26, align 4, !tbaa !18
  %.not = icmp sgt i32 %25, %27
  br i1 %.not, label %43, label %28

28:                                               ; preds = %21
  tail call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %8, i64 %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %29 = load i32, ptr %.tr31, align 8, !tbaa !16
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [2 x i32], ptr %4, i64 0, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !17
  %33 = sitofp i32 %32 to double
  %34 = load i64, ptr %2, align 8, !tbaa !14
  %35 = tail call noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %34)
  %36 = fadd double %35, %33
  %37 = load i32, ptr %26, align 4, !tbaa !18
  %38 = sitofp i32 %37 to double
  %39 = fcmp ult double %36, %38
  br i1 %39, label %.loopexit, label %40

40:                                               ; preds = %28
  %41 = getelementptr inbounds i8, ptr %.tr31, i64 24
  br label %tailrecurse.backedge

tailrecurse.backedge:                             ; preds = %43, %40
  %.tr.be.in = phi ptr [ %41, %40 ], [ %7, %43 ]
  %.tr.be = load ptr, ptr %.tr.be.in, align 8, !tbaa !19
  store i64 %1, ptr %4, align 8
  %42 = icmp eq ptr %.tr.be, null
  br i1 %42, label %.loopexit, label %.lr.ph

43:                                               ; preds = %21
  %44 = getelementptr inbounds i8, ptr %.tr31, i64 24
  %45 = load ptr, ptr %44, align 8, !tbaa !12
  tail call void @_Z16nearest_neighborP7kd_node5pointRx(ptr noundef %45, i64 %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %46 = load i32, ptr %.tr31, align 8, !tbaa !16
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [2 x i32], ptr %4, i64 0, i64 %47
  %49 = load i32, ptr %48, align 4, !tbaa !17
  %50 = sitofp i32 %49 to double
  %51 = load i64, ptr %2, align 8, !tbaa !14
  %52 = tail call noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef %51)
  %53 = fsub double %50, %52
  %54 = load i32, ptr %26, align 4, !tbaa !18
  %55 = sitofp i32 %54 to double
  %56 = fcmp ugt double %53, %55
  br i1 %56, label %.loopexit, label %tailrecurse.backedge

.loopexit:                                        ; preds = %tailrecurse.backedge, %28, %43, %3, %14, %17
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5pointneERKS_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIxEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress 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 #3 = { 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, !11, i64 16}
!6 = !{!"_ZTS7kd_node", !7, i64 0, !7, i64 4, !10, i64 8, !11, i64 16, !11, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS5point", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !11, i64 24}
!13 = !{!8, !8, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"long long", !8, i64 0}
!16 = !{!6, !7, i64 0}
!17 = !{!7, !7, i64 0}
!18 = !{!6, !7, i64 4}
!19 = !{!11, !11, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass