; LLVM IR from int32bit/leetcode :: algorithms/MergeSortedArray (solve)

; 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" = 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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printSt6vectorIiSaIiEE(ptr noundef) #0

; 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) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca %class.Solution, align 1
  %7 = alloca [20 x i32], align 16
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::vector", align 8
  %12 = alloca %"class.std::allocator", align 1
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca %"class.std::vector", align 8
  %17 = alloca %"class.std::allocator", align 1
  %18 = alloca %"class.std::vector", align 8
  %19 = alloca %"class.std::vector", align 8
  %20 = alloca %"class.std::vector", align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 80, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  br label %21

21:                                               ; preds = %93, %2
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %9, ptr noundef %8)
  %23 = icmp ne i32 %22, -1
  br i1 %23, label %24, label %118

24:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %35, %24
  %26 = load i32, ptr %10, align 4, !tbaa !5
  %27 = load i32, ptr %9, align 4, !tbaa !5
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %38

30:                                               ; preds = %25
  %31 = load i32, ptr %10, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 %32
  %34 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef %33)
  br label %35

35:                                               ; preds = %30
  %36 = load i32, ptr %10, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %10, align 4, !tbaa !5
  br label %25, !llvm.loop !11

38:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #6
  %39 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 0
  %40 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 0
  %41 = load i32, ptr %9, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i32, ptr %40, i64 %42
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24) %11, ptr noundef %39, ptr noundef %43, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %44 unwind label %50

44:                                               ; preds = %38
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #6
  store i32 0, ptr %15, align 4, !tbaa !5
  br label %45

45:                                               ; preds = %60, %44
  %46 = load i32, ptr %15, align 4, !tbaa !5
  %47 = load i32, ptr %8, align 4, !tbaa !5
  %48 = icmp slt i32 %46, %47
  br i1 %48, label %54, label %49

49:                                               ; preds = %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #6
  br label %67

50:                                               ; preds = %38
  %51 = landingpad { ptr, i32 }
          cleanup
  %52 = extractvalue { ptr, i32 } %51, 0
  store ptr %52, ptr %13, align 8
  %53 = extractvalue { ptr, i32 } %51, 1
  store i32 %53, ptr %14, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #6
  br label %117

54:                                               ; preds = %45
  %55 = load i32, ptr %15, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 %56
  %58 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef %57)
          to label %59 unwind label %63

59:                                               ; preds = %54
  br label %60

60:                                               ; preds = %59
  %61 = load i32, ptr %15, align 4, !tbaa !5
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %15, align 4, !tbaa !5
  br label %45, !llvm.loop !13

63:                                               ; preds = %54
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %13, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #6
  br label %116

67:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 24, ptr %16) #6
  %68 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 0
  %69 = getelementptr inbounds [20 x i32], ptr %7, i64 0, i64 0
  %70 = load i32, ptr %8, align 4, !tbaa !5
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds i32, ptr %69, i64 %71
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24) %16, ptr noundef %68, ptr noundef %72, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %73 unwind label %94

73:                                               ; preds = %67
  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
  %74 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.3)
          to label %75 unwind label %98

75:                                               ; preds = %73
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 8 dereferenceable(24) %11)
          to label %76 unwind label %98

76:                                               ; preds = %75
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef %18)
          to label %77 unwind label %102

77:                                               ; preds = %76
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #6
  %78 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.4)
          to label %79 unwind label %98

79:                                               ; preds = %77
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %19, ptr noundef nonnull align 8 dereferenceable(24) %16)
          to label %80 unwind label %98

80:                                               ; preds = %79
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef %19)
          to label %81 unwind label %106

81:                                               ; preds = %80
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #6
  %82 = load i32, ptr %9, align 4, !tbaa !5
  %83 = load i32, ptr %8, align 4, !tbaa !5
  %84 = add nsw i32 %82, %83
  %85 = sext i32 %84 to i64
  invoke void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %85)
          to label %86 unwind label %98

86:                                               ; preds = %81
  %87 = load i32, ptr %9, align 4, !tbaa !5
  %88 = load i32, ptr %8, align 4, !tbaa !5
  invoke void @_ZN8Solution5mergeERSt6vectorIiSaIiEEiS3_i(ptr noundef nonnull align 1 dereferenceable(1) %6, ptr noundef nonnull align 8 dereferenceable(24) %11, i32 noundef %87, ptr noundef nonnull align 8 dereferenceable(24) %16, i32 noundef %88)
          to label %89 unwind label %98

89:                                               ; preds = %86
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
          to label %91 unwind label %98

91:                                               ; preds = %89
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %20, ptr noundef nonnull align 8 dereferenceable(24) %11)
          to label %92 unwind label %98

92:                                               ; preds = %91
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef %20)
          to label %93 unwind label %110

93:                                               ; preds = %92
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %20) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %16) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %16) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #6
  br label %21, !llvm.loop !14

94:                                               ; preds = %67
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %13, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %14, align 4
  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
  br label %115

98:                                               ; preds = %91, %89, %86, %81, %79, %77, %75, %73
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %13, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %14, align 4
  br label %114

102:                                              ; preds = %76
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %13, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %14, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #6
  br label %114

106:                                              ; preds = %80
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %13, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %14, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #6
  br label %114

110:                                              ; preds = %92
  %111 = landingpad { ptr, i32 }
          cleanup
  %112 = extractvalue { ptr, i32 } %111, 0
  store ptr %112, ptr %13, align 8
  %113 = extractvalue { ptr, i32 } %111, 1
  store i32 %113, ptr %14, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %20) #6
  br label %114

114:                                              ; preds = %110, %106, %102, %98
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %16) #6
  br label %115

115:                                              ; preds = %114, %94
  call void @llvm.lifetime.end.p0(i64 24, ptr %16) #6
  br label %116

116:                                              ; preds = %115, %63
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  br label %117

117:                                              ; preds = %116, %50
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 80, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  br label %119

118:                                              ; preds = %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 80, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  ret i32 0

119:                                              ; preds = %117
  %120 = load ptr, ptr %13, align 8
  %121 = load i32, ptr %14, align 4
  %122 = insertvalue { ptr, i32 } poison, ptr %120, 0
  %123 = insertvalue { ptr, i32 } %122, i32 %121, 1
  resume { ptr, i32 } %123
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare i32 @__isoc99_scanf(ptr noundef, ...) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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 @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; 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 uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution5mergeERSt6vectorIiSaIiEEiS3_i(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) #0 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

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 = { 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 #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { "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, !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::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" = 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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printSt6vectorIiSaIiEE(ptr noundef) local_unnamed_addr #0

; 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 #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %class.Solution, align 1
  %4 = alloca [20 x i32], align 16
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.std::allocator", align 1
  %11 = alloca %"class.std::vector", align 8
  %12 = alloca %"class.std::vector", align 8
  %13 = alloca %"class.std::vector", align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #6
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6, ptr noundef nonnull %5)
  %.not22 = icmp eq i32 %14, -1
  br i1 %.not22, label %._crit_edge23, label %.preheader

.preheader:                                       ; preds = %2, %54
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %.preheader.._crit_edge_crit_edge

.preheader.._crit_edge_crit_edge:                 ; preds = %.preheader
  %.pre = sext i32 %15 to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.preheader.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.preheader.._crit_edge_crit_edge ], [ %21, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #6
  %17 = getelementptr inbounds i32, ptr %4, i64 %.pre-phi
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull %4, ptr noundef nonnull %17, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %23 unwind label %27

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %18 = getelementptr inbounds [20 x i32], ptr %4, i64 0, i64 %indvars.iv
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull %18)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %.lr.ph, label %._crit_edge, !llvm.loop !9

23:                                               ; preds = %._crit_edge
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  %24 = load i32, ptr %5, align 4, !tbaa !5
  %25 = icmp sgt i32 %24, 0
  br i1 %25, label %.lr.ph19, label %.._crit_edge20_crit_edge

.._crit_edge20_crit_edge:                         ; preds = %23
  %.pre30 = sext i32 %24 to i64
  br label %._crit_edge20

._crit_edge20:                                    ; preds = %.lr.ph19, %.._crit_edge20_crit_edge
  %.pre-phi31 = phi i64 [ %.pre30, %.._crit_edge20_crit_edge ], [ %32, %.lr.ph19 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %9) #6
  %26 = getelementptr inbounds i32, ptr %4, i64 %.pre-phi31
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %10) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull %4, ptr noundef nonnull %26, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %34 unwind label %56

27:                                               ; preds = %._crit_edge
  %28 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  br label %68

.lr.ph19:                                         ; preds = %23, %.lr.ph19
  %indvars.iv27 = phi i64 [ %indvars.iv.next28, %.lr.ph19 ], [ 0, %23 ]
  %29 = getelementptr inbounds [20 x i32], ptr %4, i64 0, i64 %indvars.iv27
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull %29)
  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = icmp slt i64 %indvars.iv.next28, %32
  br i1 %33, label %.lr.ph19, label %._crit_edge20, !llvm.loop !11

34:                                               ; preds = %._crit_edge20
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.3)
          to label %36 unwind label %58

36:                                               ; preds = %34
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %11, ptr noundef nonnull align 8 dereferenceable(24) %7)
          to label %37 unwind label %58

37:                                               ; preds = %36
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef nonnull %11)
          to label %38 unwind label %60

38:                                               ; preds = %37
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.4)
          to label %40 unwind label %58

40:                                               ; preds = %38
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %12, ptr noundef nonnull align 8 dereferenceable(24) %9)
          to label %41 unwind label %58

41:                                               ; preds = %40
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef nonnull %12)
          to label %42 unwind label %62

42:                                               ; preds = %41
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = add nsw i32 %44, %43
  %46 = sext i32 %45 to i64
  invoke void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %46)
          to label %47 unwind label %58

47:                                               ; preds = %42
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = load i32, ptr %5, align 4, !tbaa !5
  invoke void @_ZN8Solution5mergeERSt6vectorIiSaIiEEiS3_i(ptr noundef nonnull align 1 dereferenceable(1) %3, ptr noundef nonnull align 8 dereferenceable(24) %7, i32 noundef %48, ptr noundef nonnull align 8 dereferenceable(24) %9, i32 noundef %49)
          to label %50 unwind label %58

50:                                               ; preds = %47
  %51 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.5)
          to label %52 unwind label %58

52:                                               ; preds = %50
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %13, ptr noundef nonnull align 8 dereferenceable(24) %7)
          to label %53 unwind label %58

53:                                               ; preds = %52
  invoke void @_Z5printSt6vectorIiSaIiEE(ptr noundef nonnull %13)
          to label %54 unwind label %64

54:                                               ; preds = %53
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %9) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #6
  %55 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6, ptr noundef nonnull %5)
  %.not = icmp eq i32 %55, -1
  br i1 %.not, label %._crit_edge23, label %.preheader, !llvm.loop !12

56:                                               ; preds = %._crit_edge20
  %57 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  br label %67

58:                                               ; preds = %52, %50, %47, %42, %40, %38, %36, %34
  %59 = landingpad { ptr, i32 }
          cleanup
  br label %66

60:                                               ; preds = %37
  %61 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  br label %66

62:                                               ; preds = %41
  %63 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  br label %66

64:                                               ; preds = %53
  %65 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  br label %66

66:                                               ; preds = %64, %62, %60, %58
  %.pn = phi { ptr, i32 } [ %65, %64 ], [ %59, %58 ], [ %63, %62 ], [ %61, %60 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  br label %67

67:                                               ; preds = %66, %56
  %.pn.pn = phi { ptr, i32 } [ %.pn, %66 ], [ %57, %56 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %9) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  br label %68

68:                                               ; preds = %67, %27
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %67 ], [ %28, %27 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  resume { ptr, i32 } %.pn.pn.pn

._crit_edge23:                                    ; preds = %54, %2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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 @_ZNSt6vectorIiSaIiEEC2IPivEET_S4_RKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; 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 uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution5mergeERSt6vectorIiSaIiEEiS3_i(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) local_unnamed_addr #0 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

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 = { 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 #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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