; LLVM IR from abeaumont/competitive-programming :: cses (1694)

; 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::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::allocator.0" = type { i8 }

@n = external dso_local global i32, align 4
@g = external dso_local global [500 x [500 x i64]], align 16
@c = external dso_local global i64, align 8
@f = external dso_local global i64, align 8
@s = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z3dfsix(i32 noundef, i64 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %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 %"class.std::vector", align 8
  %7 = alloca %"class.std::allocator.0", align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::_Bit_iterator", align 8
  %11 = alloca { ptr, i32 }, align 8
  %12 = alloca %"struct.std::_Bit_iterator", align 8
  %13 = alloca { ptr, i32 }, align 8
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::_Bit_iterator", align 8
  %16 = alloca { ptr, i32 }, align 8
  %17 = alloca %"struct.std::_Bit_iterator", align 8
  %18 = alloca { ptr, i32 }, align 8
  %19 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %20, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %42, %0
  %23 = load i32, ptr %5, align 4, !tbaa !5
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %45

27:                                               ; preds = %22
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %28, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %29, ptr noundef nonnull align 8 dereferenceable(8) @c)
  %31 = load i64, ptr @c, align 8, !tbaa !9
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = sub nsw i32 %32, 1
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [500 x [500 x i64]], ptr @g, i64 0, i64 %34
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = sub nsw i32 %36, 1
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [500 x i64], ptr %35, i64 0, i64 %38
  %40 = load i64, ptr %39, align 8, !tbaa !9
  %41 = add nsw i64 %40, %31
  store i64 %41, ptr %39, align 8, !tbaa !9
  br label %42

42:                                               ; preds = %27
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = add nsw i32 %43, 1
  store i32 %44, ptr %5, align 4, !tbaa !5
  br label %22, !llvm.loop !11

45:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 40, ptr %6) #7
  %46 = load i32, ptr @n, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #7
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %6, i64 noundef %47, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %48 unwind label %78

48:                                               ; preds = %45
  %49 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIbSaIbEEaSEOS1_(ptr noundef nonnull align 8 dereferenceable(40) @s, ptr noundef nonnull align 8 dereferenceable(40) %6) #7
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %6) #7
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr %6) #7
  store i64 536870912, ptr @c, align 8, !tbaa !9
  br label %50

50:                                               ; preds = %83, %48
  %51 = load i64, ptr @c, align 8, !tbaa !9
  %52 = icmp sge i64 %51, 1
  br i1 %52, label %53, label %86

53:                                               ; preds = %50
  %54 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #7
  store { ptr, i32 } %54, ptr %11, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %10, ptr align 8 %11, i64 12, i1 false)
  %55 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #7
  store { ptr, i32 } %55, ptr %13, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %12, ptr align 8 %13, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 0, ptr %14, align 4, !tbaa !5
  %56 = getelementptr inbounds { ptr, i32 }, ptr %10, i32 0, i32 0
  %57 = load ptr, ptr %56, align 8
  %58 = getelementptr inbounds { ptr, i32 }, ptr %10, i32 0, i32 1
  %59 = load i32, ptr %58, align 8
  %60 = getelementptr inbounds { ptr, i32 }, ptr %12, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8
  %62 = getelementptr inbounds { ptr, i32 }, ptr %12, i32 0, i32 1
  %63 = load i32, ptr %62, align 8
  call void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr %57, i32 %59, ptr %61, i32 %63, ptr noundef nonnull align 4 dereferenceable(4) %14)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %64

64:                                               ; preds = %67, %53
  %65 = call noundef i64 @_Z3dfsix(i32 noundef 0, i64 noundef 1000000000)
  %66 = icmp ne i64 %65, 0
  br i1 %66, label %67, label %82

67:                                               ; preds = %64
  %68 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #7
  store { ptr, i32 } %68, ptr %16, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %15, ptr align 8 %16, i64 12, i1 false)
  %69 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #7
  store { ptr, i32 } %69, ptr %18, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %17, ptr align 8 %18, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #7
  store i32 0, ptr %19, align 4, !tbaa !5
  %70 = getelementptr inbounds { ptr, i32 }, ptr %15, i32 0, i32 0
  %71 = load ptr, ptr %70, align 8
  %72 = getelementptr inbounds { ptr, i32 }, ptr %15, i32 0, i32 1
  %73 = load i32, ptr %72, align 8
  %74 = getelementptr inbounds { ptr, i32 }, ptr %17, i32 0, i32 0
  %75 = load ptr, ptr %74, align 8
  %76 = getelementptr inbounds { ptr, i32 }, ptr %17, i32 0, i32 1
  %77 = load i32, ptr %76, align 8
  call void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr %71, i32 %73, ptr %75, i32 %77, ptr noundef nonnull align 4 dereferenceable(4) %19)
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #7
  br label %64, !llvm.loop !13

78:                                               ; preds = %45
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %8, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %9, align 4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %91

82:                                               ; preds = %64
  br label %83

83:                                               ; preds = %82
  %84 = load i64, ptr @c, align 8, !tbaa !9
  %85 = sdiv i64 %84, 2
  store i64 %85, ptr @c, align 8, !tbaa !9
  br label %50, !llvm.loop !14

86:                                               ; preds = %50
  %87 = load i64, ptr @f, align 8, !tbaa !9
  %88 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %87)
  %89 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %88, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %90 = load i32, ptr %1, align 4
  ret i32 %90

91:                                               ; preds = %78
  %92 = load ptr, ptr %8, align 8
  %93 = load i32, ptr %9, align 4
  %94 = insertvalue { ptr, i32 } poison, ptr %92, 0
  %95 = insertvalue { ptr, i32 } %94, i32 %93, 1
  resume { ptr, i32 } %95
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIbSaIbEEaSEOS1_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr, i32, ptr, i32, ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; 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) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #1 align 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 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress norecurse 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 = { "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 = { inlinehint 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 #6 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #7 = { 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; 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::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::allocator.0" = type { i8 }

@n = external dso_local global i32, align 4
@g = external dso_local local_unnamed_addr global [500 x [500 x i64]], align 16
@c = external dso_local global i64, align 8
@f = external dso_local local_unnamed_addr global i64, align 8
@s = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z3dfsix(i32 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator.0", align 1
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  %8 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %4) #6
  %12 = load i32, ptr @n, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %4, i64 noundef %13, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %30 unwind label %39

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.024 = phi i32 [ %27, %.lr.ph ], [ 0, %0 ]
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 8 dereferenceable(8) @c)
  %17 = load i64, ptr @c, align 8, !tbaa !9
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = add nsw i32 %18, -1
  %20 = sext i32 %19 to i64
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = add nsw i32 %21, -1
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [500 x [500 x i64]], ptr @g, i64 0, i64 %20, i64 %23
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = add nsw i64 %25, %17
  store i64 %26, ptr %24, align 8, !tbaa !9
  %27 = add nuw nsw i32 %.024, 1
  %28 = load i32, ptr %1, align 4, !tbaa !5
  %29 = icmp slt i32 %27, %28
  br i1 %29, label %.lr.ph, label %._crit_edge, !llvm.loop !11

30:                                               ; preds = %._crit_edge
  %31 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIbSaIbEEaSEOS1_(ptr noundef nonnull align 8 dereferenceable(40) @s, ptr noundef nonnull align 8 dereferenceable(40) %4) #6
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %4) #6
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %4) #6
  store i64 536870912, ptr @c, align 8, !tbaa !9
  br label %32

32:                                               ; preds = %30, %._crit_edge28
  %33 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #6
  %.fca.0.extract15 = extractvalue { ptr, i32 } %33, 0
  %.fca.1.extract16 = extractvalue { ptr, i32 } %33, 1
  %34 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #6
  %.fca.0.extract9 = extractvalue { ptr, i32 } %34, 0
  %.fca.1.extract10 = extractvalue { ptr, i32 } %34, 1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #6
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr %.fca.0.extract15, i32 %.fca.1.extract16, ptr %.fca.0.extract9, i32 %.fca.1.extract10, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  %35 = call noundef i64 @_Z3dfsix(i32 noundef 0, i64 noundef 1000000000)
  %.not25 = icmp eq i64 %35, 0
  br i1 %.not25, label %._crit_edge28, label %.lr.ph27

.lr.ph27:                                         ; preds = %32, %.lr.ph27
  %36 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #6
  %.fca.0.extract3 = extractvalue { ptr, i32 } %36, 0
  %.fca.1.extract4 = extractvalue { ptr, i32 } %36, 1
  %37 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) @s) #6
  %.fca.0.extract = extractvalue { ptr, i32 } %37, 0
  %.fca.1.extract = extractvalue { ptr, i32 } %37, 1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #6
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr %.fca.0.extract3, i32 %.fca.1.extract4, ptr %.fca.0.extract, i32 %.fca.1.extract, ptr noundef nonnull align 4 dereferenceable(4) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #6
  %38 = call noundef i64 @_Z3dfsix(i32 noundef 0, i64 noundef 1000000000)
  %.not = icmp eq i64 %38, 0
  br i1 %.not, label %._crit_edge28, label %.lr.ph27, !llvm.loop !13

39:                                               ; preds = %._crit_edge
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %40

._crit_edge28:                                    ; preds = %.lr.ph27, %32
  %41 = load i64, ptr @c, align 8, !tbaa !9
  %42 = sdiv i64 %41, 2
  store i64 %42, ptr @c, align 8, !tbaa !9
  %43 = icmp sgt i64 %41, 1
  br i1 %43, label %32, label %44, !llvm.loop !14

44:                                               ; preds = %._crit_edge28
  %45 = load i64, ptr @f, align 8, !tbaa !9
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %45)
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %46, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIbSaIbEEaSEOS1_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillISt13_Bit_iteratoriEvT_S1_RKT0_(ptr, i32, ptr, i32, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #1 align 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 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress norecurse 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 = { "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 = { inlinehint 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 #6 = { 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass