; LLVM IR from brpapa/algorithms :: solutions/spoj (EC_CONB)

; 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::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::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 }>
%"struct.std::_Bit_reference" = type { ptr, i64 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 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 %"class.std::vector", align 8
  %6 = alloca i8, align 1
  %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 %"struct.std::_Bit_reference", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  %13 = 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)
  br label %14

14:                                               ; preds = %97, %95, %0
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = add nsw i32 %15, -1
  store i32 %16, ptr %2, align 4, !tbaa !5
  %17 = icmp ne i32 %15, 0
  br i1 %17, label %18, label %104

18:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  %19 = 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)
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = srem i32 %20, 2
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %23, label %27

23:                                               ; preds = %18
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %24)
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 2, ptr %4, align 4
  br label %95, !llvm.loop !9

27:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 40, ptr %5) #6
  call void @_ZNSt6vectorIbSaIbEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  store i8 0, ptr %6, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 31, ptr %7, align 4, !tbaa !5
  br label %28

28:                                               ; preds = %56, %27
  %29 = load i32, ptr %7, align 4, !tbaa !5
  %30 = icmp sge i32 %29, 0
  br i1 %30, label %32, label %31

31:                                               ; preds = %28
  store i32 4, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %59

32:                                               ; preds = %28
  %33 = load i8, ptr %6, align 1, !tbaa !11, !range !13, !noundef !14
  %34 = trunc i8 %33 to i1
  br i1 %34, label %35, label %46

35:                                               ; preds = %32
  %36 = load i32, ptr %3, align 4, !tbaa !5
  %37 = load i32, ptr %7, align 4, !tbaa !5
  %38 = shl i32 1, %37
  %39 = and i32 %36, %38
  %40 = icmp ne i32 %39, 0
  invoke void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40) %5, i1 noundef zeroext %40)
          to label %41 unwind label %42

41:                                               ; preds = %35
  br label %55

42:                                               ; preds = %52, %35
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %8, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %103

46:                                               ; preds = %32
  %47 = load i32, ptr %3, align 4, !tbaa !5
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = shl i32 1, %48
  %50 = and i32 %47, %49
  %51 = icmp ne i32 %50, 0
  br i1 %51, label %52, label %54

52:                                               ; preds = %46
  store i8 1, ptr %6, align 1, !tbaa !11
  invoke void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40) %5, i1 noundef zeroext true)
          to label %53 unwind label %42

53:                                               ; preds = %52
  br label %54

54:                                               ; preds = %53, %46
  br label %55

55:                                               ; preds = %54, %41
  br label %56

56:                                               ; preds = %55
  %57 = load i32, ptr %7, align 4, !tbaa !5
  %58 = add nsw i32 %57, -1
  store i32 %58, ptr %7, align 4, !tbaa !5
  br label %28, !llvm.loop !15

59:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %60

60:                                               ; preds = %86, %59
  %61 = load i32, ptr %11, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %5) #6
  %64 = icmp ult i64 %62, %63
  br i1 %64, label %66, label %65

65:                                               ; preds = %60
  store i32 7, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %89

66:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #6
  %67 = load i32, ptr %11, align 4, !tbaa !5
  %68 = sext i32 %67 to i64
  %69 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %5, i64 noundef %68)
          to label %70 unwind label %81

70:                                               ; preds = %66
  %71 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %72 = extractvalue { ptr, i64 } %69, 0
  store ptr %72, ptr %71, align 8
  %73 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %74 = extractvalue { ptr, i64 } %69, 1
  store i64 %74, ptr %73, align 8
  %75 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %12) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  br i1 %75, label %76, label %85

76:                                               ; preds = %70
  %77 = load i32, ptr %11, align 4, !tbaa !5
  %78 = shl i32 1, %77
  %79 = load i32, ptr %10, align 4, !tbaa !5
  %80 = or i32 %79, %78
  store i32 %80, ptr %10, align 4, !tbaa !5
  br label %85

81:                                               ; preds = %66
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %8, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %102

85:                                               ; preds = %76, %70
  br label %86

86:                                               ; preds = %85
  %87 = load i32, ptr %11, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %11, align 4, !tbaa !5
  br label %60, !llvm.loop !16

89:                                               ; preds = %65
  %90 = load i32, ptr %10, align 4, !tbaa !5
  %91 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %90)
          to label %92 unwind label %98

92:                                               ; preds = %89
  %93 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %91, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %94 unwind label %98

94:                                               ; preds = %92
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #6
  call void @llvm.lifetime.end.p0(i64 40, ptr %5) #6
  store i32 0, ptr %4, align 4
  br label %95

95:                                               ; preds = %94, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  %96 = load i32, ptr %4, align 4
  switch i32 %96, label %111 [
    i32 0, label %97
    i32 2, label %14
  ]

97:                                               ; preds = %95
  br label %14, !llvm.loop !9

98:                                               ; preds = %92, %89
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %8, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %9, align 4
  br label %102

102:                                              ; preds = %98, %81
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %103

103:                                              ; preds = %102, %42
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #6
  call void @llvm.lifetime.end.p0(i64 40, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %106

104:                                              ; preds = %14
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %105 = load i32, ptr %1, align 4
  ret i32 %105

106:                                              ; preds = %103
  %107 = load ptr, ptr %8, align 8
  %108 = load i32, ptr %9, align 4
  %109 = insertvalue { ptr, i32 } poison, ptr %107, 0
  %110 = insertvalue { ptr, i32 } %109, i32 %108, 1
  resume { ptr, i32 } %110

111:                                              ; preds = %95
  unreachable
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40), i1 noundef zeroext) #3 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 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 = { 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 #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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{i8 0, i8 2}
!14 = !{}
!15 = distinct !{!15, !10}
!16 = distinct !{!16, !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::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::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 }>
%"struct.std::_Bit_reference" = type { ptr, i64 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = add nsw i32 %6, -1
  store i32 %7, ptr %1, align 4, !tbaa !5
  %.not32 = icmp eq i32 %6, 0
  br i1 %.not32, label %._crit_edge35, label %.lr.ph34

.lr.ph34:                                         ; preds = %0
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  br label %9

9:                                                ; preds = %.lr.ph34, %46
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  %10 = 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)
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = and i32 %11, 1
  %.not22 = icmp eq i32 %12, 0
  br i1 %.not22, label %16, label %13

13:                                               ; preds = %9
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %11)
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %14, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %46, !llvm.loop !9

16:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %3) #6
  call void @_ZNSt6vectorIbSaIbEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40) %3) #6
  br label %18

.preheader:                                       ; preds = %28
  %17 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %3) #6
  %.not36 = icmp eq i64 %17, 0
  br i1 %.not36, label %._crit_edge, label %.lr.ph

18:                                               ; preds = %16, %28
  %.01829 = phi i32 [ 31, %16 ], [ %29, %28 ]
  %.01928 = phi i1 [ false, %16 ], [ %.120, %28 ]
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = shl nuw i32 1, %.01829
  %21 = and i32 %19, %20
  br i1 %.01928, label %22, label %26

22:                                               ; preds = %18
  %23 = icmp ne i32 %21, 0
  br label %.invoke

24:                                               ; preds = %.invoke
  %25 = landingpad { ptr, i32 }
          cleanup
  br label %51

26:                                               ; preds = %18
  %.not24 = icmp eq i32 %21, 0
  br i1 %.not24, label %28, label %.invoke

.invoke:                                          ; preds = %26, %22
  %27 = phi i1 [ %23, %22 ], [ true, %26 ]
  invoke void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40) %3, i1 noundef zeroext %27)
          to label %28 unwind label %24

28:                                               ; preds = %.invoke, %26
  %.120 = phi i1 [ false, %26 ], [ true, %.invoke ]
  %29 = add nsw i32 %.01829, -1
  %.not38 = icmp eq i32 %.01829, 0
  br i1 %.not38, label %.preheader, label %18, !llvm.loop !11

._crit_edge:                                      ; preds = %32, %.preheader
  %.013.lcssa = phi i32 [ 0, %.preheader ], [ %.1, %32 ]
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.013.lcssa)
          to label %43 unwind label %49

.lr.ph:                                           ; preds = %.preheader, %32
  %indvars.iv = phi i64 [ %indvars.iv.next, %32 ], [ 0, %.preheader ]
  %.01330 = phi i32 [ %.1, %32 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #6
  %31 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %3, i64 noundef %indvars.iv)
          to label %32 unwind label %41

32:                                               ; preds = %.lr.ph
  %33 = extractvalue { ptr, i64 } %31, 0
  store ptr %33, ptr %4, align 8
  %34 = extractvalue { ptr, i64 } %31, 1
  store i64 %34, ptr %8, align 8
  %35 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %4) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  %36 = trunc nuw nsw i64 %indvars.iv to i32
  %37 = shl nuw i32 1, %36
  %38 = select i1 %35, i32 %37, i32 0
  %.1 = or i32 %38, %.01330
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %39 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %3) #6
  %40 = icmp ugt i64 %39, %indvars.iv.next
  br i1 %40, label %.lr.ph, label %._crit_edge, !llvm.loop !12

41:                                               ; preds = %.lr.ph
  %42 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  br label %51

43:                                               ; preds = %._crit_edge
  %44 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %30, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %45 unwind label %49

45:                                               ; preds = %43
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %3) #6
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %3) #6
  br label %46

46:                                               ; preds = %45, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  %47 = load i32, ptr %1, align 4, !tbaa !5
  %48 = add nsw i32 %47, -1
  store i32 %48, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %47, 0
  br i1 %.not, label %._crit_edge35, label %9

49:                                               ; preds = %43, %._crit_edge
  %50 = landingpad { ptr, i32 }
          cleanup
  br label %51

51:                                               ; preds = %41, %49, %24
  %.pn25 = phi { ptr, i32 } [ %25, %24 ], [ %42, %41 ], [ %50, %49 ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %3) #6
  call void @llvm.lifetime.end.p0(i64 40, 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 } %.pn25

._crit_edge35:                                    ; preds = %46, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

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

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 #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40), i1 noundef zeroext) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; 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
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 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 = { 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 #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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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