; LLVM IR from vmartinv/eldiego :: grafos/diametro.ll (Z9diametrosv)

; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

@n = external dso_local global i32, align 4
@p = external dso_local global [100100 x i32], align 16
@d = external dso_local global [100100 x i32], align 16
@d2 = external dso_local global [100100 x i32], align 16
@diams = external dso_local global %"class.std::vector", align 8
@centros = external dso_local global %"class.std::vector.0", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z3bfsiPi(i32 noundef, ptr noundef) #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: mustprogress uwtable
define dso_local void @_Z9diametrosv() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 4
  %7 = alloca %"struct.std::pair", align 4
  call void @llvm.memset.p0.i64(ptr align 16 @d, i8 -1, i64 400400, i1 false)
  call void @llvm.memset.p0.i64(ptr align 16 @d2, i8 -1, i64 400400, i1 false)
  call void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @diams) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @centros) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %57, %0
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  store i32 2, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  br label %60

13:                                               ; preds = %8
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %15
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = icmp eq i32 %17, -1
  br i1 %18, label %19, label %56

19:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %20 = load i32, ptr %1, align 4, !tbaa !5
  %21 = call noundef i32 @_Z3bfsiPi(i32 noundef %20, ptr noundef @d2)
  %22 = call noundef i32 @_Z3bfsiPi(i32 noundef %21, ptr noundef @d)
  store i32 %22, ptr %3, align 4, !tbaa !5
  store i32 %22, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %37, %19
  %24 = load i32, ptr %5, align 4, !tbaa !5
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = sdiv i32 %28, 2
  %30 = icmp slt i32 %24, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %23
  store i32 5, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %40

32:                                               ; preds = %23
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %34
  %36 = load i32, ptr %35, align 4, !tbaa !5
  store i32 %36, ptr %4, align 4, !tbaa !5
  br label %37

37:                                               ; preds = %32
  %38 = load i32, ptr %5, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %5, align 4, !tbaa !5
  br label %23, !llvm.loop !9

40:                                               ; preds = %31
  %41 = load i32, ptr %3, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %42
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) @diams, ptr noundef nonnull align 4 dereferenceable(4) %43)
  %44 = load i32, ptr %3, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %45
  %47 = load i32, ptr %46, align 4, !tbaa !5
  %48 = and i32 %47, 1
  %49 = icmp ne i32 %48, 0
  br i1 %49, label %50, label %54

50:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %51 = load i32, ptr %4, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %52
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %53)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @centros, ptr noundef nonnull align 4 dereferenceable(8) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %55

54:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @centros, ptr noundef nonnull align 4 dereferenceable(8) %7)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %55

55:                                               ; preds = %54, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %56

56:                                               ; preds = %55, %13
  br label %57

57:                                               ; preds = %56
  %58 = load i32, ptr %1, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %1, align 4, !tbaa !5
  br label %8, !llvm.loop !11

60:                                               ; preds = %12
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 #4 = { 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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

@n = external dso_local local_unnamed_addr global i32, align 4
@p = external dso_local global [100100 x i32], align 16
@d = external dso_local global [100100 x i32], align 16
@d2 = external dso_local global [100100 x i32], align 16
@diams = external dso_local global %"class.std::vector", align 8
@centros = external dso_local global %"class.std::vector.0", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z3bfsiPi(i32 noundef, ptr noundef) 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 uwtable
define dso_local void @_Z9diametrosv() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca %"struct.std::pair", align 4
  %3 = alloca %"struct.std::pair", align 4
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(400400) @d, i8 -1, i64 400400, i1 false)
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(400400) @d2, i8 -1, i64 400400, i1 false)
  tail call void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @diams) #4
  tail call void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @centros) #4
  %4 = load i32, ptr @n, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph14, label %._crit_edge15

._crit_edge15:                                    ; preds = %59, %0
  ret void

.lr.ph14:                                         ; preds = %0, %59
  %6 = phi i32 [ %60, %59 ], [ %4, %0 ]
  %indvars.iv = phi i64 [ %indvars.iv.next, %59 ], [ 0, %0 ]
  %7 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %indvars.iv
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = icmp eq i32 %8, -1
  br i1 %9, label %10, label %59

10:                                               ; preds = %.lr.ph14
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %11 = trunc nuw nsw i64 %indvars.iv to i32
  %12 = call noundef i32 @_Z3bfsiPi(i32 noundef %11, ptr noundef nonnull @d2)
  %13 = call noundef i32 @_Z3bfsiPi(i32 noundef %12, ptr noundef nonnull @d)
  store i32 %13, ptr %1, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [100100 x i32], ptr @d, i64 0, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sdiv i32 %16, 2
  %18 = icmp sgt i32 %16, 1
  br i1 %18, label %.lr.ph.preheader, label %25

.lr.ph.preheader:                                 ; preds = %10
  %19 = add nsw i32 %17, -1
  %xtraiter = and i32 %17, 7
  %20 = icmp ult i32 %19, 7
  br i1 %20, label %._crit_edge.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i32 %17, 1073741816
  br label %.lr.ph

._crit_edge.unr-lcssa:                            ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi i32 [ poison, %.lr.ph.preheader ], [ %52, %.lr.ph ]
  %.unr = phi i32 [ %13, %.lr.ph.preheader ], [ %52, %.lr.ph ]
  %lcmp.mod.not = icmp eq i32 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.unr-lcssa, %.lr.ph.epil
  %21 = phi i32 [ %24, %.lr.ph.epil ], [ %.unr, %._crit_edge.unr-lcssa ]
  %epil.iter = phi i32 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.unr-lcssa ]
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %epil.iter.next = add i32 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i32 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph.epil, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph.epil, %._crit_edge.unr-lcssa
  %.lcssa = phi i32 [ %.lcssa.ph, %._crit_edge.unr-lcssa ], [ %24, %.lr.ph.epil ]
  store i32 %.lcssa, ptr %1, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %._crit_edge, %10
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) @diams, ptr noundef nonnull align 4 dereferenceable(4) %15)
  %26 = load i32, ptr %15, align 4, !tbaa !5
  %27 = and i32 %26, 1
  %.not = icmp eq i32 %27, 0
  br i1 %.not, label %57, label %53

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %28 = phi i32 [ %13, %.lr.ph.preheader.new ], [ %52, %.lr.ph ]
  %niter = phi i32 [ 0, %.lr.ph.preheader.new ], [ %niter.next.7, %.lr.ph ]
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %35
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %38
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %47
  %49 = load i32, ptr %48, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %50
  %52 = load i32, ptr %51, align 4, !tbaa !5
  %niter.next.7 = add i32 %niter, 8
  %niter.ncmp.7 = icmp eq i32 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7, label %._crit_edge.unr-lcssa, label %.lr.ph, !llvm.loop !11

53:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %54 = load i32, ptr %1, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [100100 x i32], ptr @p, i64 0, i64 %55
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %56)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @centros, ptr noundef nonnull align 4 dereferenceable(8) %2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  br label %58

57:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @centros, ptr noundef nonnull align 4 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  br label %58

58:                                               ; preds = %57, %53
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  %.pre = load i32, ptr @n, align 4, !tbaa !5
  br label %59

59:                                               ; preds = %.lr.ph14, %58
  %60 = phi i32 [ %6, %.lr.ph14 ], [ %.pre, %58 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %61 = sext i32 %60 to i64
  %62 = icmp slt i64 %indvars.iv.next, %61
  br i1 %62, label %.lr.ph14, label %._crit_edge15, !llvm.loop !13
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 #4 = { 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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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