; LLVM IR from Mohammed-Shoaib/Coding-Problems :: Codeforces/Solutions/1272D.ll (Z10max_lengthiRSt6vectorIiSaIiEE)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10max_lengthiRSt6vectorIiSaIiEE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::vector", align 8
  %12 = alloca i32, align 4
  %13 = alloca %"class.std::allocator", align 1
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #5
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 1, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %22, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %23 unwind label %32

23:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #5
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  store i32 1, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %25, ptr noundef nonnull align 4 dereferenceable(4) %12, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %26 unwind label %36

26:                                               ; preds = %23
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #5
  store i32 1, ptr %14, align 4, !tbaa !5
  br label %27

27:                                               ; preds = %65, %26
  %28 = load i32, ptr %14, align 4, !tbaa !5
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %40, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  br label %68

32:                                               ; preds = %2
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %9, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %168

36:                                               ; preds = %23
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %9, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %167

40:                                               ; preds = %27
  %41 = load ptr, ptr %4, align 8, !tbaa !9
  %42 = load i32, ptr %14, align 4, !tbaa !5
  %43 = sub nsw i32 %42, 1
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %41, i64 noundef %44) #5
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = load ptr, ptr %4, align 8, !tbaa !9
  %48 = load i32, ptr %14, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %47, i64 noundef %49) #5
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = icmp slt i32 %46, %51
  br i1 %52, label %53, label %64

53:                                               ; preds = %40
  %54 = load i32, ptr %14, align 4, !tbaa !5
  %55 = sub nsw i32 %54, 1
  %56 = sext i32 %55 to i64
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %56) #5
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = load i32, ptr %14, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %60) #5
  %62 = load i32, ptr %61, align 4, !tbaa !5
  %63 = add nsw i32 %62, %58
  store i32 %63, ptr %61, align 4, !tbaa !5
  br label %64

64:                                               ; preds = %53, %40
  br label %65

65:                                               ; preds = %64
  %66 = load i32, ptr %14, align 4, !tbaa !5
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %14, align 4, !tbaa !5
  br label %27, !llvm.loop !11

68:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  %69 = load i32, ptr %3, align 4, !tbaa !5
  %70 = sub nsw i32 %69, 2
  store i32 %70, ptr %15, align 4, !tbaa !5
  br label %71

71:                                               ; preds = %100, %68
  %72 = load i32, ptr %15, align 4, !tbaa !5
  %73 = icmp sge i32 %72, 0
  br i1 %73, label %75, label %74

74:                                               ; preds = %71
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  br label %103

75:                                               ; preds = %71
  %76 = load ptr, ptr %4, align 8, !tbaa !9
  %77 = load i32, ptr %15, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %76, i64 noundef %78) #5
  %80 = load i32, ptr %79, align 4, !tbaa !5
  %81 = load ptr, ptr %4, align 8, !tbaa !9
  %82 = load i32, ptr %15, align 4, !tbaa !5
  %83 = add nsw i32 %82, 1
  %84 = sext i32 %83 to i64
  %85 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %81, i64 noundef %84) #5
  %86 = load i32, ptr %85, align 4, !tbaa !5
  %87 = icmp slt i32 %80, %86
  br i1 %87, label %88, label %99

88:                                               ; preds = %75
  %89 = load i32, ptr %15, align 4, !tbaa !5
  %90 = add nsw i32 %89, 1
  %91 = sext i32 %90 to i64
  %92 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %91) #5
  %93 = load i32, ptr %92, align 4, !tbaa !5
  %94 = load i32, ptr %15, align 4, !tbaa !5
  %95 = sext i32 %94 to i64
  %96 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %95) #5
  %97 = load i32, ptr %96, align 4, !tbaa !5
  %98 = add nsw i32 %97, %93
  store i32 %98, ptr %96, align 4, !tbaa !5
  br label %99

99:                                               ; preds = %88, %75
  br label %100

100:                                              ; preds = %99
  %101 = load i32, ptr %15, align 4, !tbaa !5
  %102 = add nsw i32 %101, -1
  store i32 %102, ptr %15, align 4, !tbaa !5
  br label %71, !llvm.loop !13

103:                                              ; preds = %74
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  %104 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  %105 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %104, ptr %105, align 8
  %106 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  %107 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %106, ptr %107, align 8
  %108 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  %109 = load ptr, ptr %108, align 8
  %110 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  %111 = load ptr, ptr %110, align 8
  %112 = invoke ptr @_ZSt11max_elementIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEET_S7_S7_(ptr %109, ptr %111)
          to label %113 unwind label %123

113:                                              ; preds = %103
  %114 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %112, ptr %114, align 8
  %115 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #5
  %116 = load i32, ptr %115, align 4, !tbaa !5
  store i32 %116, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #5
  store i32 1, ptr %19, align 4, !tbaa !5
  br label %117

117:                                              ; preds = %161, %113
  %118 = load i32, ptr %19, align 4, !tbaa !5
  %119 = load i32, ptr %3, align 4, !tbaa !5
  %120 = sub nsw i32 %119, 1
  %121 = icmp slt i32 %118, %120
  br i1 %121, label %127, label %122

122:                                              ; preds = %117
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #5
  br label %164

123:                                              ; preds = %103
  %124 = landingpad { ptr, i32 }
          cleanup
  %125 = extractvalue { ptr, i32 } %124, 0
  store ptr %125, ptr %9, align 8
  %126 = extractvalue { ptr, i32 } %124, 1
  store i32 %126, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %166

127:                                              ; preds = %117
  %128 = load ptr, ptr %4, align 8, !tbaa !9
  %129 = load i32, ptr %19, align 4, !tbaa !5
  %130 = sub nsw i32 %129, 1
  %131 = sext i32 %130 to i64
  %132 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %128, i64 noundef %131) #5
  %133 = load i32, ptr %132, align 4, !tbaa !5
  %134 = load ptr, ptr %4, align 8, !tbaa !9
  %135 = load i32, ptr %19, align 4, !tbaa !5
  %136 = add nsw i32 %135, 1
  %137 = sext i32 %136 to i64
  %138 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %134, i64 noundef %137) #5
  %139 = load i32, ptr %138, align 4, !tbaa !5
  %140 = icmp slt i32 %133, %139
  br i1 %140, label %141, label %160

141:                                              ; preds = %127
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #5
  %142 = load i32, ptr %19, align 4, !tbaa !5
  %143 = sub nsw i32 %142, 1
  %144 = sext i32 %143 to i64
  %145 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %144) #5
  %146 = load i32, ptr %145, align 4, !tbaa !5
  %147 = load i32, ptr %19, align 4, !tbaa !5
  %148 = add nsw i32 %147, 1
  %149 = sext i32 %148 to i64
  %150 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %149) #5
  %151 = load i32, ptr %150, align 4, !tbaa !5
  %152 = add nsw i32 %146, %151
  store i32 %152, ptr %20, align 4, !tbaa !5
  %153 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %20, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %154 unwind label %156

154:                                              ; preds = %141
  %155 = load i32, ptr %153, align 4, !tbaa !5
  store i32 %155, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #5
  br label %160

156:                                              ; preds = %141
  %157 = landingpad { ptr, i32 }
          cleanup
  %158 = extractvalue { ptr, i32 } %157, 0
  store ptr %158, ptr %9, align 8
  %159 = extractvalue { ptr, i32 } %157, 1
  store i32 %159, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #5
  br label %166

160:                                              ; preds = %154, %127
  br label %161

161:                                              ; preds = %160
  %162 = load i32, ptr %19, align 4, !tbaa !5
  %163 = add nsw i32 %162, 1
  store i32 %163, ptr %19, align 4, !tbaa !5
  br label %117, !llvm.loop !14

164:                                              ; preds = %122
  %165 = load i32, ptr %5, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  ret i32 %165

166:                                              ; preds = %156, %123
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  br label %167

167:                                              ; preds = %166, %36
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  br label %168

168:                                              ; preds = %167, %32
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %169

169:                                              ; preds = %168
  %170 = load ptr, ptr %9, align 8
  %171 = load i32, ptr %10, align 4
  %172 = insertvalue { ptr, i32 } poison, ptr %170, 0
  %173 = insertvalue { ptr, i32 } %172, i32 %171, 1
  resume { ptr, i32 } %173
}

; 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 dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11max_elementIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEET_S7_S7_(ptr, ptr) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(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 = { 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 #4 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10max_lengthiRSt6vectorIiSaIiEE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  %12 = sext i32 %0 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  store i32 1, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %12, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %13 unwind label %18

13:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #5
  store i32 1, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %12, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %14 unwind label %20

14:                                               ; preds = %13
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #5
  %15 = icmp sgt i32 %0, 1
  br i1 %15, label %.lr.ph.preheader, label %._crit_edge43

.lr.ph.preheader:                                 ; preds = %14
  %wide.trip.count = zext nneg i32 %0 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %34
  br i1 %15, label %.lr.ph42.preheader, label %._crit_edge43

.lr.ph42.preheader:                               ; preds = %._crit_edge
  %16 = add nsw i32 %0, -2
  %17 = zext nneg i32 %16 to i64
  br label %.lr.ph42

18:                                               ; preds = %2
  %19 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  br label %76

20:                                               ; preds = %13
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #5
  br label %75

.lr.ph:                                           ; preds = %.lr.ph.preheader, %34
  %indvars.iv = phi i64 [ 1, %.lr.ph.preheader ], [ %indvars.iv.next, %34 ]
  %22 = add nsw i64 %indvars.iv, -1
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %22) #5
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #5
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = icmp slt i32 %24, %26
  br i1 %27, label %28, label %34

28:                                               ; preds = %.lr.ph
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %22) #5
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %indvars.iv) #5
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = add nsw i32 %32, %30
  store i32 %33, ptr %31, align 4, !tbaa !5
  br label %34

34:                                               ; preds = %.lr.ph, %28
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge43:                                    ; preds = %50, %14, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #5
  %35 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %36 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %37 = invoke ptr @_ZSt11max_elementIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEET_S7_S7_(ptr %35, ptr %36)
          to label %52 unwind label %58

.lr.ph42:                                         ; preds = %.lr.ph42.preheader, %50
  %indvars.iv49 = phi i64 [ %17, %.lr.ph42.preheader ], [ %indvars.iv.next50, %50 ]
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv49) #5
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = add nuw nsw i64 %indvars.iv49, 1
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %40) #5
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = icmp slt i32 %39, %42
  br i1 %43, label %44, label %50

44:                                               ; preds = %.lr.ph42
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %40) #5
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv49) #5
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = add nsw i32 %48, %46
  store i32 %49, ptr %47, align 4, !tbaa !5
  br label %50

50:                                               ; preds = %.lr.ph42, %44
  %indvars.iv.next50 = add nsw i64 %indvars.iv49, -1
  %51 = icmp sgt i64 %indvars.iv49, 0
  br i1 %51, label %.lr.ph42, label %._crit_edge43, !llvm.loop !11

52:                                               ; preds = %._crit_edge43
  store ptr %37, ptr %10, align 8
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  %54 = load i32, ptr %53, align 4, !tbaa !5
  store i32 %54, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  %55 = icmp sgt i32 %0, 2
  br i1 %55, label %.lr.ph46.preheader, label %._crit_edge47

.lr.ph46.preheader:                               ; preds = %52
  %56 = add nsw i32 %0, -1
  %wide.trip.count55 = zext nneg i32 %56 to i64
  br label %.lr.ph46

._crit_edge47.loopexit:                           ; preds = %74
  %.pre = load i32, ptr %3, align 4, !tbaa !5
  br label %._crit_edge47

._crit_edge47:                                    ; preds = %._crit_edge47.loopexit, %52
  %57 = phi i32 [ %.pre, %._crit_edge47.loopexit ], [ %54, %52 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  ret i32 %57

58:                                               ; preds = %._crit_edge43
  %59 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  br label %75

.lr.ph46:                                         ; preds = %.lr.ph46.preheader, %74
  %indvars.iv52 = phi i64 [ 1, %.lr.ph46.preheader ], [ %indvars.iv.next53, %74 ]
  %60 = add nsw i64 %indvars.iv52, -1
  %61 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %60) #5
  %62 = load i32, ptr %61, align 4, !tbaa !5
  %indvars.iv.next53 = add nuw nsw i64 %indvars.iv52, 1
  %63 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv.next53) #5
  %64 = load i32, ptr %63, align 4, !tbaa !5
  %65 = icmp slt i32 %62, %64
  br i1 %65, label %66, label %74

66:                                               ; preds = %.lr.ph46
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #5
  %67 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %60) #5
  %68 = load i32, ptr %67, align 4, !tbaa !5
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv.next53) #5
  %70 = load i32, ptr %69, align 4, !tbaa !5
  %71 = add nsw i32 %70, %68
  store i32 %71, ptr %11, align 4, !tbaa !5
  %72 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %11, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %73 = load i32, ptr %72, align 4, !tbaa !5
  store i32 %73, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #5
  br label %74

74:                                               ; preds = %.lr.ph46, %66
  %exitcond56.not = icmp eq i64 %indvars.iv.next53, %wide.trip.count55
  br i1 %exitcond56.not, label %._crit_edge47.loopexit, label %.lr.ph46, !llvm.loop !12

75:                                               ; preds = %58, %20
  %.pn = phi { ptr, i32 } [ %59, %58 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  br label %76

76:                                               ; preds = %75, %18
  %.pn.pn = phi { ptr, i32 } [ %.pn, %75 ], [ %19, %18 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  resume { ptr, i32 } %.pn.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 dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11max_elementIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEET_S7_S7_(ptr, ptr) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(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 = { 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 #4 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"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: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass