; LLVM IR from ravireddy07/cpp-book :: src/Leetcode (435_non-overlapping-iIntervals)

; 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_ostream" = type { ptr, %"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.Solution = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"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::initializer_list.5" = type { ptr, i64 }
%"class.std::allocator" = type { i8 }
%"class.std::allocator.2" = type { i8 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %class.Solution, align 1
  %3 = alloca %"class.std::vector.0", align 8
  %4 = alloca %"class.std::initializer_list", align 8
  %5 = alloca [4 x %"class.std::vector"], align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::initializer_list.5", align 8
  %8 = alloca [2 x i32], align 4
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::initializer_list.5", align 8
  %13 = alloca [2 x i32], align 4
  %14 = alloca %"class.std::allocator", align 1
  %15 = alloca %"class.std::initializer_list.5", align 8
  %16 = alloca [2 x i32], align 4
  %17 = alloca %"class.std::allocator", align 1
  %18 = alloca %"class.std::initializer_list.5", align 8
  %19 = alloca [2 x i32], align 4
  %20 = alloca %"class.std::allocator", align 1
  %21 = alloca i1, align 1
  %22 = alloca %"class.std::allocator.2", align 1
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr %5) #6
  store i1 true, ptr %21, align 1
  store ptr %5, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i32 1, ptr %8, align 4, !tbaa !5
  %23 = getelementptr inbounds i32, ptr %8, i64 1
  store i32 2, ptr %23, align 4, !tbaa !5
  %24 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 0
  store ptr %8, ptr %24, align 8, !tbaa !9
  %25 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 1
  store i64 2, ptr %25, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  %26 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8
  %28 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 1
  %29 = load i64, ptr %28, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr %27, i64 %29, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %30 unwind label %79

30:                                               ; preds = %0
  %31 = getelementptr inbounds %"class.std::vector", ptr %5, i64 1
  store ptr %31, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  store i32 2, ptr %13, align 4, !tbaa !5
  %32 = getelementptr inbounds i32, ptr %13, i64 1
  store i32 3, ptr %32, align 4, !tbaa !5
  %33 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 0
  store ptr %13, ptr %33, align 8, !tbaa !9
  %34 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 1
  store i64 2, ptr %34, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  %35 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %36 = load ptr, ptr %35, align 8
  %37 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %38 = load i64, ptr %37, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %31, ptr %36, i64 %38, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %39 unwind label %83

39:                                               ; preds = %30
  %40 = getelementptr inbounds %"class.std::vector", ptr %5, i64 2
  store ptr %40, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  store i32 3, ptr %16, align 4, !tbaa !5
  %41 = getelementptr inbounds i32, ptr %16, i64 1
  store i32 4, ptr %41, align 4, !tbaa !5
  %42 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 0
  store ptr %16, ptr %42, align 8, !tbaa !9
  %43 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 1
  store i64 2, ptr %43, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  %44 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 0
  %45 = load ptr, ptr %44, align 8
  %46 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 1
  %47 = load i64, ptr %46, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %40, ptr %45, i64 %47, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %48 unwind label %87

48:                                               ; preds = %39
  %49 = getelementptr inbounds %"class.std::vector", ptr %5, i64 3
  store ptr %49, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #6
  store i32 1, ptr %19, align 4, !tbaa !5
  %50 = getelementptr inbounds i32, ptr %19, i64 1
  store i32 3, ptr %50, align 4, !tbaa !5
  %51 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 0
  store ptr %19, ptr %51, align 8, !tbaa !9
  %52 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 1
  store i64 2, ptr %52, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %20) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  %53 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 0
  %54 = load ptr, ptr %53, align 8
  %55 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 1
  %56 = load i64, ptr %55, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %49, ptr %54, i64 %56, ptr noundef nonnull align 1 dereferenceable(1) %20)
          to label %57 unwind label %91

57:                                               ; preds = %48
  store i1 false, ptr %21, align 1
  %58 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 0
  store ptr %5, ptr %58, align 8, !tbaa !14
  %59 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 1
  store i64 4, ptr %59, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 1, ptr %22) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  %60 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8
  %62 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  %63 = load i64, ptr %62, align 8
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr %61, i64 %63, ptr noundef nonnull align 1 dereferenceable(1) %22)
          to label %64 unwind label %95

64:                                               ; preds = %57
  %65 = invoke noundef i32 @_ZN8Solution21eraseOverlapIntervalsESt6vectorIS0_IiSaIiEESaIS2_EE(ptr noundef nonnull align 1 dereferenceable(1) %2, ptr noundef %3)
          to label %66 unwind label %99

66:                                               ; preds = %64
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %65)
          to label %68 unwind label %99

68:                                               ; preds = %66
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %67, ptr noundef @.str)
          to label %70 unwind label %99

70:                                               ; preds = %68
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  %71 = getelementptr inbounds [4 x %"class.std::vector"], ptr %5, i32 0, i32 0
  %72 = getelementptr inbounds %"class.std::vector", ptr %71, i64 4
  br label %73

73:                                               ; preds = %73, %70
  %74 = phi ptr [ %72, %70 ], [ %75, %73 ]
  %75 = getelementptr inbounds %"class.std::vector", ptr %74, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %75) #6
  %76 = icmp eq ptr %75, %71
  br i1 %76, label %77, label %73

77:                                               ; preds = %73
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  %78 = load i32, ptr %1, align 4
  ret i32 %78

79:                                               ; preds = %0
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %10, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %11, align 4
  br label %114

83:                                               ; preds = %30
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %10, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %11, align 4
  br label %113

87:                                               ; preds = %39
  %88 = landingpad { ptr, i32 }
          cleanup
  %89 = extractvalue { ptr, i32 } %88, 0
  store ptr %89, ptr %10, align 8
  %90 = extractvalue { ptr, i32 } %88, 1
  store i32 %90, ptr %11, align 4
  br label %112

91:                                               ; preds = %48
  %92 = landingpad { ptr, i32 }
          cleanup
  %93 = extractvalue { ptr, i32 } %92, 0
  store ptr %93, ptr %10, align 8
  %94 = extractvalue { ptr, i32 } %92, 1
  store i32 %94, ptr %11, align 4
  br label %111

95:                                               ; preds = %57
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %10, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %11, align 4
  br label %103

99:                                               ; preds = %68, %66, %64
  %100 = landingpad { ptr, i32 }
          cleanup
  %101 = extractvalue { ptr, i32 } %100, 0
  store ptr %101, ptr %10, align 8
  %102 = extractvalue { ptr, i32 } %100, 1
  store i32 %102, ptr %11, align 4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %103

103:                                              ; preds = %99, %95
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  %104 = getelementptr inbounds [4 x %"class.std::vector"], ptr %5, i32 0, i32 0
  %105 = getelementptr inbounds %"class.std::vector", ptr %104, i64 4
  br label %106

106:                                              ; preds = %106, %103
  %107 = phi ptr [ %105, %103 ], [ %108, %106 ]
  %108 = getelementptr inbounds %"class.std::vector", ptr %107, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %108) #6
  %109 = icmp eq ptr %108, %104
  br i1 %109, label %110, label %106

110:                                              ; preds = %106
  br label %111

111:                                              ; preds = %110, %91
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  br label %112

112:                                              ; preds = %111, %87
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  br label %113

113:                                              ; preds = %112, %83
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %114

114:                                              ; preds = %113, %79
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  %115 = load i1, ptr %21, align 1
  br i1 %115, label %116, label %124

116:                                              ; preds = %114
  %117 = load ptr, ptr %6, align 8
  %118 = icmp eq ptr %5, %117
  br i1 %118, label %123, label %119

119:                                              ; preds = %119, %116
  %120 = phi ptr [ %117, %116 ], [ %121, %119 ]
  %121 = getelementptr inbounds %"class.std::vector", ptr %120, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %121) #6
  %122 = icmp eq ptr %121, %5
  br i1 %122, label %123, label %119

123:                                              ; preds = %119, %116
  br label %124

124:                                              ; preds = %123, %114
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  br label %125

125:                                              ; preds = %124
  %126 = load ptr, ptr %10, align 8
  %127 = load i32, ptr %11, align 4
  %128 = insertvalue { ptr, i32 } poison, ptr %126, 0
  %129 = insertvalue { ptr, i32 } %128, i32 %127, 1
  resume { ptr, i32 } %129
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN8Solution21eraseOverlapIntervalsESt6vectorIS0_IiSaIiEESaIS2_EE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { 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 #3 = { "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 = { 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 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt16initializer_listIiE", !11, i64 0, !12, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 8}
!14 = !{!15, !11, i64 0}
!15 = !{!"_ZTSSt16initializer_listISt6vectorIiSaIiEEE", !11, i64 0, !12, i64 8}
!16 = !{!15, !12, i64 8}


; 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_ostream" = type { ptr, %"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.Solution = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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.std::allocator.2" = type { i8 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %class.Solution, align 1
  %2 = alloca %"class.std::vector.0", align 8
  %3 = alloca [4 x %"class.std::vector"], align 8
  %4 = alloca [2 x i32], align 4
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca [2 x i32], align 4
  %7 = alloca %"class.std::allocator", align 1
  %8 = alloca [2 x i32], align 4
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca [2 x i32], align 4
  %11 = alloca %"class.std::allocator", align 1
  %12 = alloca %"class.std::allocator.2", align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  store i32 1, ptr %4, align 4, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 2, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr nonnull %4, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %14 unwind label %.thread

14:                                               ; preds = %0
  %15 = getelementptr inbounds i8, ptr %3, i64 24
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  store i32 2, ptr %6, align 4, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %6, i64 4
  store i32 3, ptr %16, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %15, ptr nonnull %6, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %17 unwind label %35

17:                                               ; preds = %14
  %18 = getelementptr inbounds i8, ptr %3, i64 48
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #6
  store i32 3, ptr %8, align 4, !tbaa !5
  %19 = getelementptr inbounds i8, ptr %8, i64 4
  store i32 4, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr nonnull %8, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %20 unwind label %37

20:                                               ; preds = %17
  %21 = getelementptr inbounds i8, ptr %3, i64 72
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #6
  store i32 1, ptr %10, align 4, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %10, i64 4
  store i32 3, ptr %22, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %11) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %21, ptr nonnull %10, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %23 unwind label %39

23:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr nonnull %3, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %24 unwind label %41

24:                                               ; preds = %23
  %25 = invoke noundef i32 @_ZN8Solution21eraseOverlapIntervalsESt6vectorIS0_IiSaIiEESaIS2_EE(ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef nonnull %2)
          to label %26 unwind label %43

26:                                               ; preds = %24
  %27 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %25)
          to label %28 unwind label %43

28:                                               ; preds = %26
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %27, ptr noundef nonnull @.str)
          to label %30 unwind label %43

30:                                               ; preds = %28
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  %31 = getelementptr inbounds i8, ptr %3, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %31) #6
  %32 = getelementptr inbounds i8, ptr %3, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %32) #6
  %33 = getelementptr inbounds i8, ptr %3, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %33) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #6
  ret i32 0

.thread:                                          ; preds = %0
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %.loopexit

35:                                               ; preds = %14
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %50

37:                                               ; preds = %17
  %38 = landingpad { ptr, i32 }
          cleanup
  br label %49

39:                                               ; preds = %20
  %40 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit36

41:                                               ; preds = %23
  %42 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit36.loopexit

43:                                               ; preds = %28, %26, %24
  %44 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %.loopexit36.loopexit

.loopexit36.loopexit:                             ; preds = %43, %41
  %.pn = phi { ptr, i32 } [ %44, %43 ], [ %42, %41 ]
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  %45 = getelementptr inbounds i8, ptr %3, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %45) #6
  %46 = getelementptr inbounds i8, ptr %3, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %46) #6
  %47 = getelementptr inbounds i8, ptr %3, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %47) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %.loopexit36

.loopexit36:                                      ; preds = %.loopexit36.loopexit, %39
  %.pn.pn = phi { ptr, i32 } [ %40, %39 ], [ %.pn, %.loopexit36.loopexit ]
  %48 = phi i1 [ false, %39 ], [ true, %.loopexit36.loopexit ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  br label %49

49:                                               ; preds = %.loopexit36, %37
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %.loopexit36 ], [ %38, %37 ]
  %.013 = phi ptr [ %21, %.loopexit36 ], [ %18, %37 ]
  %.1 = phi i1 [ %48, %.loopexit36 ], [ false, %37 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  br label %50

50:                                               ; preds = %35, %49
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %49 ], [ %36, %35 ]
  %.114 = phi ptr [ %.013, %49 ], [ %15, %35 ]
  %.2 = phi i1 [ %.1, %49 ], [ false, %35 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %.2, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %50, %.preheader
  %51 = phi ptr [ %52, %.preheader ], [ %.114, %50 ]
  %52 = getelementptr inbounds i8, ptr %51, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %52) #6
  %53 = icmp eq ptr %52, %3
  br i1 %53, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %.thread, %50
  %.pn.pn.pn.pn.pn35 = phi { ptr, i32 } [ %34, %.thread ], [ %.pn.pn.pn.pn, %50 ], [ %.pn.pn.pn.pn, %.preheader ]
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn.pn.pn.pn35
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) 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 #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN8Solution21eraseOverlapIntervalsESt6vectorIS0_IiSaIiEESaIS2_EE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { 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 #3 = { "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 = { 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"}


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