; LLVM IR from DionysiosB/CodeForces :: 0700-0799 (778A-StringGame)

; 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.3" = 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::allocator.7" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z5checkNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_St6vectorIlSaIlEEl(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca %"class.std::vector.3", align 8
  %10 = alloca i8, align 1
  %11 = alloca %"class.std::allocator.7", align 1
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i64, align 8
  %15 = alloca %"struct.std::_Bit_reference", align 8
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::allocator", align 1
  %18 = alloca i64, align 8
  %19 = alloca %"struct.std::_Bit_reference", align 8
  %20 = alloca i64, align 8
  %21 = alloca i64, align 8
  %22 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 40, ptr %9) #3
  %23 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #3
  store i8 1, ptr %10, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #3
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #3
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %9, i64 noundef %23, ptr noundef nonnull align 1 dereferenceable(1) %10, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %24 unwind label %30

24:                                               ; preds = %4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #3
  store i64 0, ptr %14, align 8, !tbaa !9
  br label %25

25:                                               ; preds = %45, %24
  %26 = load i64, ptr %14, align 8, !tbaa !9
  %27 = load i64, ptr %8, align 8, !tbaa !9
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %34, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  br label %52

30:                                               ; preds = %4
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %12, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %13, align 4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #3
  br label %134

34:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 16, ptr %15) #3
  %35 = load i64, ptr %14, align 8, !tbaa !9
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %35) #3
  %37 = load i64, ptr %36, align 8, !tbaa !9
  %38 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %9, i64 noundef %37)
          to label %39 unwind label %48

39:                                               ; preds = %34
  %40 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 0
  %41 = extractvalue { ptr, i64 } %38, 0
  store ptr %41, ptr %40, align 8
  %42 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 1
  %43 = extractvalue { ptr, i64 } %38, 1
  store i64 %43, ptr %42, align 8
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %15, i1 noundef zeroext false) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #3
  br label %45

45:                                               ; preds = %39
  %46 = load i64, ptr %14, align 8, !tbaa !9
  %47 = add nsw i64 %46, 1
  store i64 %47, ptr %14, align 8, !tbaa !9
  br label %25, !llvm.loop !13

48:                                               ; preds = %34
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %12, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  br label %133

52:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %53 unwind label %59

53:                                               ; preds = %52
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #3
  store i64 0, ptr %18, align 8, !tbaa !9
  br label %54

54:                                               ; preds = %88, %53
  %55 = load i64, ptr %18, align 8, !tbaa !9
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  %57 = icmp ult i64 %55, %56
  br i1 %57, label %63, label %58

58:                                               ; preds = %54
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #3
  br label %92

59:                                               ; preds = %52
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %12, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %13, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #3
  br label %132

63:                                               ; preds = %54
  call void @llvm.lifetime.start.p0(i64 16, ptr %19) #3
  %64 = load i64, ptr %18, align 8, !tbaa !9
  %65 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %9, i64 noundef %64)
          to label %66 unwind label %79

66:                                               ; preds = %63
  %67 = getelementptr inbounds { ptr, i64 }, ptr %19, i32 0, i32 0
  %68 = extractvalue { ptr, i64 } %65, 0
  store ptr %68, ptr %67, align 8
  %69 = getelementptr inbounds { ptr, i64 }, ptr %19, i32 0, i32 1
  %70 = extractvalue { ptr, i64 } %65, 1
  store i64 %70, ptr %69, align 8
  %71 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %19) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #3
  br i1 %71, label %72, label %87

72:                                               ; preds = %66
  %73 = load i64, ptr %18, align 8, !tbaa !9
  %74 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %73)
          to label %75 unwind label %83

75:                                               ; preds = %72
  %76 = load i8, ptr %74, align 1, !tbaa !15
  %77 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %16, i8 noundef signext %76)
          to label %78 unwind label %83

78:                                               ; preds = %75
  br label %87

79:                                               ; preds = %63
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %12, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #3
  br label %91

83:                                               ; preds = %75, %72
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %12, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %13, align 4
  br label %91

87:                                               ; preds = %78, %66
  br label %88

88:                                               ; preds = %87
  %89 = load i64, ptr %18, align 8, !tbaa !9
  %90 = add nsw i64 %89, 1
  store i64 %90, ptr %18, align 8, !tbaa !9
  br label %54, !llvm.loop !16

91:                                               ; preds = %83, %79
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #3
  br label %131

92:                                               ; preds = %58
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #3
  store i64 0, ptr %20, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #3
  store i64 0, ptr %21, align 8, !tbaa !9
  br label %93

93:                                               ; preds = %123, %92
  %94 = load i64, ptr %21, align 8, !tbaa !9
  %95 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %16) #3
  %96 = icmp ult i64 %94, %95
  br i1 %96, label %98, label %97

97:                                               ; preds = %93
  store i32 8, ptr %22, align 4
  br label %126

98:                                               ; preds = %93
  %99 = load i64, ptr %21, align 8, !tbaa !9
  %100 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %16, i64 noundef %99)
          to label %101 unwind label %113

101:                                              ; preds = %98
  %102 = load i8, ptr %100, align 1, !tbaa !15
  %103 = sext i8 %102 to i32
  %104 = load i64, ptr %20, align 8, !tbaa !9
  %105 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %104)
          to label %106 unwind label %113

106:                                              ; preds = %101
  %107 = load i8, ptr %105, align 1, !tbaa !15
  %108 = sext i8 %107 to i32
  %109 = icmp eq i32 %103, %108
  br i1 %109, label %110, label %117

110:                                              ; preds = %106
  %111 = load i64, ptr %20, align 8, !tbaa !9
  %112 = add nsw i64 %111, 1
  store i64 %112, ptr %20, align 8, !tbaa !9
  br label %117

113:                                              ; preds = %101, %98
  %114 = landingpad { ptr, i32 }
          cleanup
  %115 = extractvalue { ptr, i32 } %114, 0
  store ptr %115, ptr %12, align 8
  %116 = extractvalue { ptr, i32 } %114, 1
  store i32 %116, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #3
  br label %131

117:                                              ; preds = %110, %106
  %118 = load i64, ptr %20, align 8, !tbaa !9
  %119 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #3
  %120 = icmp uge i64 %118, %119
  br i1 %120, label %121, label %122

121:                                              ; preds = %117
  store i32 8, ptr %22, align 4
  br label %126

122:                                              ; preds = %117
  br label %123

123:                                              ; preds = %122
  %124 = load i64, ptr %21, align 8, !tbaa !9
  %125 = add nsw i64 %124, 1
  store i64 %125, ptr %21, align 8, !tbaa !9
  br label %93, !llvm.loop !17

126:                                              ; preds = %121, %97
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #3
  br label %127

127:                                              ; preds = %126
  %128 = load i64, ptr %20, align 8, !tbaa !9
  %129 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #3
  %130 = icmp uge i64 %128, %129
  store i32 1, ptr %22, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #3
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %9) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #3
  ret i1 %130

131:                                              ; preds = %113, %91
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #3
  br label %132

132:                                              ; preds = %131, %59
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #3
  br label %133

133:                                              ; preds = %132, %48
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %9) #3
  br label %134

134:                                              ; preds = %133, %30
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #3
  br label %135

135:                                              ; preds = %134
  %136 = load ptr, ptr %12, align 8
  %137 = load i32, ptr %13, align 4
  %138 = insertvalue { ptr, i32 } poison, ptr %136, 0
  %139 = insertvalue { ptr, i32 } %138, i32 %137, 1
  resume { ptr, i32 } %139
}

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; 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
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 = { 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!7, !7, i64 0}
!16 = distinct !{!16, !14}
!17 = distinct !{!17, !14}


; 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.3" = 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::allocator.7" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z5checkNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_St6vectorIlSaIlEEl(ptr noundef nonnull %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::vector.3", align 8
  %6 = alloca i8, align 1
  %7 = alloca %"class.std::allocator.7", align 1
  %8 = alloca %"struct.std::_Bit_reference", align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::allocator", align 1
  %11 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %5) #3
  %12 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #3
  store i8 1, ptr %6, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #3
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %5, i64 noundef %12, ptr noundef nonnull align 1 dereferenceable(1) %6, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %13 unwind label %16

13:                                               ; preds = %4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #3
  %14 = icmp sgt i64 %3, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %13
  %15 = getelementptr inbounds i8, ptr %8, i64 8
  br label %18

._crit_edge:                                      ; preds = %22, %13
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %10) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %29 unwind label %33

16:                                               ; preds = %4
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #3
  br label %69

18:                                               ; preds = %.lr.ph, %22
  %.01831 = phi i64 [ 0, %.lr.ph ], [ %26, %22 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %8) #3
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.01831) #3
  %20 = load i64, ptr %19, align 8, !tbaa !9
  %21 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %5, i64 noundef %20)
          to label %22 unwind label %27

22:                                               ; preds = %18
  %23 = extractvalue { ptr, i64 } %21, 0
  store ptr %23, ptr %8, align 8
  %24 = extractvalue { ptr, i64 } %21, 1
  store i64 %24, ptr %15, align 8
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %8, i1 noundef zeroext false) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #3
  %26 = add nuw nsw i64 %.01831, 1
  %exitcond.not = icmp eq i64 %26, %3
  br i1 %exitcond.not, label %._crit_edge, label %18, !llvm.loop !11

27:                                               ; preds = %18
  %28 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #3
  br label %68

29:                                               ; preds = %._crit_edge
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #3
  %30 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  %.not41 = icmp eq i64 %30, 0
  br i1 %.not41, label %.preheader, label %.lr.ph34

.lr.ph34:                                         ; preds = %29
  %31 = getelementptr inbounds i8, ptr %11, i64 8
  br label %35

.preheader:                                       ; preds = %49, %29
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %9) #3
  %.not42 = icmp eq i64 %32, 0
  br i1 %.not42, label %._crit_edge38, label %.lr.ph37

33:                                               ; preds = %._crit_edge
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #3
  br label %67

35:                                               ; preds = %.lr.ph34, %49
  %.01732 = phi i64 [ 0, %.lr.ph34 ], [ %50, %49 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %11) #3
  %36 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %5, i64 noundef %.01732)
          to label %37 unwind label %45

37:                                               ; preds = %35
  %38 = extractvalue { ptr, i64 } %36, 0
  store ptr %38, ptr %11, align 8
  %39 = extractvalue { ptr, i64 } %36, 1
  store i64 %39, ptr %31, align 8
  %40 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %11) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %11) #3
  br i1 %40, label %41, label %49

41:                                               ; preds = %37
  %42 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %.01732)
  %43 = load i8, ptr %42, align 1, !tbaa !13
  %44 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %9, i8 noundef signext %43)
          to label %49 unwind label %47

45:                                               ; preds = %35
  %46 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %11) #3
  br label %53

47:                                               ; preds = %41
  %48 = landingpad { ptr, i32 }
          cleanup
  br label %53

49:                                               ; preds = %37, %41
  %50 = add nuw nsw i64 %.01732, 1
  %51 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  %52 = icmp ult i64 %50, %51
  br i1 %52, label %35, label %.preheader, !llvm.loop !14

53:                                               ; preds = %47, %45
  %.pn = phi { ptr, i32 } [ %48, %47 ], [ %46, %45 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #3
  br label %67

54:                                               ; preds = %.lr.ph37
  %55 = add nuw nsw i64 %.036, 1
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %9) #3
  %57 = icmp ult i64 %55, %56
  br i1 %57, label %.lr.ph37, label %._crit_edge38, !llvm.loop !15

.lr.ph37:                                         ; preds = %.preheader, %54
  %.036 = phi i64 [ %55, %54 ], [ 0, %.preheader ]
  %.01635 = phi i64 [ %spec.select, %54 ], [ 0, %.preheader ]
  %58 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %9, i64 noundef %.036)
  %59 = load i8, ptr %58, align 1, !tbaa !13
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.01635)
  %61 = load i8, ptr %60, align 1, !tbaa !13
  %62 = icmp eq i8 %59, %61
  %63 = zext i1 %62 to i64
  %spec.select = add nuw nsw i64 %.01635, %63
  %64 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #3
  %.not = icmp ult i64 %spec.select, %64
  br i1 %.not, label %54, label %._crit_edge38

._crit_edge38:                                    ; preds = %54, %.lr.ph37, %.preheader
  %.2 = phi i64 [ 0, %.preheader ], [ %spec.select, %.lr.ph37 ], [ %spec.select, %54 ]
  %65 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #3
  %66 = icmp uge i64 %.2, %65
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #3
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #3
  ret i1 %66

67:                                               ; preds = %53, %33
  %.pn.pn = phi { ptr, i32 } [ %.pn, %53 ], [ %34, %33 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #3
  br label %68

68:                                               ; preds = %67, %27
  %.pn28 = phi { ptr, i32 } [ %28, %27 ], [ %.pn.pn, %67 ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #3
  br label %69

69:                                               ; preds = %68, %16
  %.pn28.pn = phi { ptr, i32 } [ %.pn28, %68 ], [ %17, %16 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #3
  resume { ptr, i32 } %.pn28.pn
}

; 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 nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; 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
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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, !6, i64 0}
!6 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


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