; LLVM IR from yanglr/leetcode-ac :: cpp-leetcode (leetcode56-merge-intervals_solution1)

; 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.Solution = type { i8 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.2" = type { i8 }
%"class.std::allocator" = type { i8 }

; 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", align 8
  %4 = alloca %"class.std::initializer_list", align 8
  %5 = alloca [4 x %"class.std::vector.0"], 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.2", 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.2", align 1
  %15 = alloca %"class.std::initializer_list.5", align 8
  %16 = alloca [2 x i32], align 4
  %17 = alloca %"class.std::allocator.2", align 1
  %18 = alloca %"class.std::initializer_list.5", align 8
  %19 = alloca [2 x i32], align 4
  %20 = alloca %"class.std::allocator.2", align 1
  %21 = alloca i1, align 1
  %22 = alloca %"class.std::allocator", align 1
  %23 = alloca %"class.std::vector", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 96, ptr %5) #4
  store i1 true, ptr %21, align 1
  store ptr %5, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i32 1, ptr %8, align 4, !tbaa !5
  %24 = getelementptr inbounds i32, ptr %8, i64 1
  store i32 3, ptr %24, align 4, !tbaa !5
  %25 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 0
  store ptr %8, ptr %25, align 8, !tbaa !9
  %26 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 1
  store i64 2, ptr %26, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  %27 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 0
  %28 = load ptr, ptr %27, align 8
  %29 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 1
  %30 = load i64, ptr %29, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr %28, i64 %30, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %31 unwind label %75

31:                                               ; preds = %0
  %32 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 1
  store ptr %32, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  store i32 2, ptr %13, align 4, !tbaa !5
  %33 = getelementptr inbounds i32, ptr %13, i64 1
  store i32 6, ptr %33, align 4, !tbaa !5
  %34 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 0
  store ptr %13, ptr %34, align 8, !tbaa !9
  %35 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 1
  store i64 2, ptr %35, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #4
  %36 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %37 = load ptr, ptr %36, align 8
  %38 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %39 = load i64, ptr %38, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %32, ptr %37, i64 %39, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %40 unwind label %79

40:                                               ; preds = %31
  %41 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 2
  store ptr %41, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  store i32 8, ptr %16, align 4, !tbaa !5
  %42 = getelementptr inbounds i32, ptr %16, i64 1
  store i32 10, ptr %42, align 4, !tbaa !5
  %43 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 0
  store ptr %16, ptr %43, align 8, !tbaa !9
  %44 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 1
  store i64 2, ptr %44, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #4
  %45 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 0
  %46 = load ptr, ptr %45, align 8
  %47 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 1
  %48 = load i64, ptr %47, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %41, ptr %46, i64 %48, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %49 unwind label %83

49:                                               ; preds = %40
  %50 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 3
  store ptr %50, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #4
  store i32 15, ptr %19, align 4, !tbaa !5
  %51 = getelementptr inbounds i32, ptr %19, i64 1
  store i32 18, ptr %51, align 4, !tbaa !5
  %52 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 0
  store ptr %19, ptr %52, align 8, !tbaa !9
  %53 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 1
  store i64 2, ptr %53, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %20) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #4
  %54 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 0
  %55 = load ptr, ptr %54, align 8
  %56 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 1
  %57 = load i64, ptr %56, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %50, ptr %55, i64 %57, ptr noundef nonnull align 1 dereferenceable(1) %20)
          to label %58 unwind label %87

58:                                               ; preds = %49
  store i1 false, ptr %21, align 1
  %59 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 0
  store ptr %5, ptr %59, align 8, !tbaa !14
  %60 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 1
  store i64 4, ptr %60, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 1, ptr %22) #4
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #4
  %61 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  %62 = load ptr, ptr %61, align 8
  %63 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  %64 = load i64, ptr %63, align 8
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr %62, i64 %64, ptr noundef nonnull align 1 dereferenceable(1) %22)
          to label %65 unwind label %91

65:                                               ; preds = %58
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #4
  %66 = getelementptr inbounds [4 x %"class.std::vector.0"], ptr %5, i32 0, i32 0
  %67 = getelementptr inbounds %"class.std::vector.0", ptr %66, i64 4
  br label %68

68:                                               ; preds = %68, %65
  %69 = phi ptr [ %67, %65 ], [ %70, %68 ]
  %70 = getelementptr inbounds %"class.std::vector.0", ptr %69, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %70) #4
  %71 = icmp eq ptr %70, %66
  br i1 %71, label %72, label %68

72:                                               ; preds = %68
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %23) #4
  invoke void @_ZN8Solution5mergeERSt6vectorIS0_IiSaIiEESaIS2_EE(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %23, ptr noundef nonnull align 1 dereferenceable(1) %2, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %73 unwind label %116

73:                                               ; preds = %72
  store i32 0, ptr %1, align 4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %23) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %23) #4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #4
  %74 = load i32, ptr %1, align 4
  ret i32 %74

75:                                               ; preds = %0
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %10, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %11, align 4
  br label %105

79:                                               ; preds = %31
  %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 %104

83:                                               ; preds = %40
  %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 %103

87:                                               ; preds = %49
  %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 %102

91:                                               ; preds = %58
  %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
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #4
  %95 = getelementptr inbounds [4 x %"class.std::vector.0"], ptr %5, i32 0, i32 0
  %96 = getelementptr inbounds %"class.std::vector.0", ptr %95, i64 4
  br label %97

97:                                               ; preds = %97, %91
  %98 = phi ptr [ %96, %91 ], [ %99, %97 ]
  %99 = getelementptr inbounds %"class.std::vector.0", ptr %98, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %99) #4
  %100 = icmp eq ptr %99, %95
  br i1 %100, label %101, label %97

101:                                              ; preds = %97
  br label %102

102:                                              ; preds = %101, %87
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #4
  br label %103

103:                                              ; preds = %102, %83
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  br label %104

104:                                              ; preds = %103, %79
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  br label %105

105:                                              ; preds = %104, %75
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %106 = load i1, ptr %21, align 1
  br i1 %106, label %107, label %115

107:                                              ; preds = %105
  %108 = load ptr, ptr %6, align 8
  %109 = icmp eq ptr %5, %108
  br i1 %109, label %114, label %110

110:                                              ; preds = %110, %107
  %111 = phi ptr [ %108, %107 ], [ %112, %110 ]
  %112 = getelementptr inbounds %"class.std::vector.0", ptr %111, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %112) #4
  %113 = icmp eq ptr %112, %5
  br i1 %113, label %114, label %110

114:                                              ; preds = %110, %107
  br label %115

115:                                              ; preds = %114, %105
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #4
  br label %120

116:                                              ; preds = %72
  %117 = landingpad { ptr, i32 }
          cleanup
  %118 = extractvalue { ptr, i32 } %117, 0
  store ptr %118, ptr %10, align 8
  %119 = extractvalue { ptr, i32 } %117, 1
  store i32 %119, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %23) #4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  br label %120

120:                                              ; preds = %116, %115
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #4
  br label %121

121:                                              ; preds = %120
  %122 = load ptr, ptr %10, align 8
  %123 = load i32, ptr %11, align 4
  %124 = insertvalue { ptr, i32 } poison, ptr %122, 0
  %125 = insertvalue { ptr, i32 } %124, i32 %123, 1
  resume { ptr, i32 } %125
}

; 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 @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 #2 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 #3 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 #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution5mergeERSt6vectorIS0_IiSaIiEESaIS2_EE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 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 = { 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 = { 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 = { 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.Solution = type { i8 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.2" = type { i8 }
%"class.std::allocator" = type { i8 }

; 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", align 8
  %3 = alloca [4 x %"class.std::vector.0"], align 8
  %4 = alloca [2 x i32], align 4
  %5 = alloca %"class.std::allocator.2", align 1
  %6 = alloca [2 x i32], align 4
  %7 = alloca %"class.std::allocator.2", align 1
  %8 = alloca [2 x i32], align 4
  %9 = alloca %"class.std::allocator.2", align 1
  %10 = alloca [2 x i32], align 4
  %11 = alloca %"class.std::allocator.2", align 1
  %12 = alloca %"class.std::allocator", align 1
  %13 = alloca %"class.std::vector", align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  store i32 1, ptr %4, align 4, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 3, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  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 %15 unwind label %.thread

15:                                               ; preds = %0
  %16 = getelementptr inbounds i8, ptr %3, i64 24
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  store i32 2, ptr %6, align 4, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %6, i64 4
  store i32 6, ptr %17, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %16, ptr nonnull %6, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %18 unwind label %31

18:                                               ; preds = %15
  %19 = getelementptr inbounds i8, ptr %3, i64 48
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #4
  store i32 8, ptr %8, align 4, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %8, i64 4
  store i32 10, ptr %20, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %19, ptr nonnull %8, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %21 unwind label %33

21:                                               ; preds = %18
  %22 = getelementptr inbounds i8, ptr %3, i64 72
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #4
  store i32 15, ptr %10, align 4, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %10, i64 4
  store i32 18, ptr %23, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %11) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %22, ptr nonnull %10, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %24 unwind label %35

24:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #4
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #4
  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 %25 unwind label %.loopexit37.loopexit

25:                                               ; preds = %24
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #4
  %26 = getelementptr inbounds i8, ptr %3, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %26) #4
  %27 = getelementptr inbounds i8, ptr %3, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %27) #4
  %28 = getelementptr inbounds i8, ptr %3, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %28) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %13) #4
  invoke void @_ZN8Solution5mergeERSt6vectorIS0_IiSaIiEESaIS2_EE(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %13, ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %29 unwind label %47

29:                                               ; preds = %25
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %13) #4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  ret i32 0

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

31:                                               ; preds = %15
  %32 = landingpad { ptr, i32 }
          cleanup
  br label %43

33:                                               ; preds = %18
  %34 = landingpad { ptr, i32 }
          cleanup
  br label %42

35:                                               ; preds = %21
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit37

.loopexit37.loopexit:                             ; preds = %24
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #4
  %38 = getelementptr inbounds i8, ptr %3, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %38) #4
  %39 = getelementptr inbounds i8, ptr %3, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %39) #4
  %40 = getelementptr inbounds i8, ptr %3, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %40) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  br label %.loopexit37

.loopexit37:                                      ; preds = %.loopexit37.loopexit, %35
  %.pn = phi { ptr, i32 } [ %36, %35 ], [ %37, %.loopexit37.loopexit ]
  %41 = phi i1 [ false, %35 ], [ true, %.loopexit37.loopexit ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  br label %42

42:                                               ; preds = %.loopexit37, %33
  %.pn.pn = phi { ptr, i32 } [ %.pn, %.loopexit37 ], [ %34, %33 ]
  %.013 = phi ptr [ %22, %.loopexit37 ], [ %19, %33 ]
  %.1 = phi i1 [ %41, %.loopexit37 ], [ false, %33 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  br label %43

43:                                               ; preds = %31, %42
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %42 ], [ %32, %31 ]
  %.114 = phi ptr [ %.013, %42 ], [ %16, %31 ]
  %.2 = phi i1 [ %.1, %42 ], [ false, %31 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  br i1 %.2, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %43, %.preheader
  %44 = phi ptr [ %45, %.preheader ], [ %.114, %43 ]
  %45 = getelementptr inbounds i8, ptr %44, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %45) #4
  %46 = icmp eq ptr %45, %3
  br i1 %46, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %.thread, %43
  %.pn.pn.pn.pn36 = phi { ptr, i32 } [ %30, %.thread ], [ %.pn.pn.pn, %43 ], [ %.pn.pn.pn, %.preheader ]
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #4
  br label %49

47:                                               ; preds = %25
  %48 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %13) #4
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  br label %49

49:                                               ; preds = %47, %.loopexit
  %.pn30 = phi { ptr, i32 } [ %48, %47 ], [ %.pn.pn.pn.pn36, %.loopexit ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  resume { ptr, i32 } %.pn30
}

; 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 @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 #2 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 #3 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 #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution5mergeERSt6vectorIS0_IiSaIiEESaIS2_EE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

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

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