; LLVM IR from kazunetakahashi/atcoder :: 2019/1109_nikkei2019-2-qual/E.ll (Z13best_solutionx)

; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@.str.2 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [91 x i8], align 1
@__PRETTY_FUNCTION__._Z13best_solutionx = external hidden unnamed_addr constant [37 x i8], align 1
@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 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) #0

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13best_solutionx(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, i64 noundef %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i1, align 1
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store i64 %1, ptr %4, align 8, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  %12 = load i64, ptr %4, align 8, !tbaa !5
  %13 = srem i64 %12, 2
  %14 = icmp eq i64 %13, 0
  br i1 %14, label %15, label %23

15:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #5
  %16 = load i64, ptr %4, align 8, !tbaa !5
  invoke void @_Z18best_solution_evenx(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %6, i64 noundef %16)
          to label %17 unwind label %19

17:                                               ; preds = %15
  %18 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #5
  br label %31

19:                                               ; preds = %15
  %20 = landingpad { ptr, i32 }
          cleanup
  %21 = extractvalue { ptr, i32 } %20, 0
  store ptr %21, ptr %7, align 8
  %22 = extractvalue { ptr, i32 } %20, 1
  store i32 %22, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #5
  br label %104

23:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #5
  %24 = load i64, ptr %4, align 8, !tbaa !5
  invoke void @_Z17best_solution_oddx(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %9, i64 noundef %24)
          to label %25 unwind label %27

25:                                               ; preds = %23
  %26 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #5
  br label %31

27:                                               ; preds = %23
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %7, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #5
  br label %104

31:                                               ; preds = %25, %17
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %32

32:                                               ; preds = %49, %31
  %33 = load i32, ptr %10, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = load i64, ptr %4, align 8, !tbaa !5
  %36 = icmp slt i64 %34, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %52

38:                                               ; preds = %32
  %39 = load i32, ptr %10, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %40) #5
  %42 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %41) #5
  %43 = trunc i64 %42 to i32
  %44 = icmp eq i32 %43, 2
  br i1 %44, label %45, label %46

45:                                               ; preds = %38
  br label %48

46:                                               ; preds = %38
  call void @__assert_fail(ptr noundef @.str.2, ptr noundef @.str.3, i32 noundef 197, ptr noundef @__PRETTY_FUNCTION__._Z13best_solutionx) #6
  unreachable

47:                                               ; No predecessors!
  br label %48

48:                                               ; preds = %47, %45
  br label %49

49:                                               ; preds = %48
  %50 = load i32, ptr %10, align 4, !tbaa !9
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %10, align 4, !tbaa !9
  br label %32, !llvm.loop !11

52:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %53

53:                                               ; preds = %93, %52
  %54 = load i32, ptr %11, align 4, !tbaa !9
  %55 = sext i32 %54 to i64
  %56 = load i64, ptr %4, align 8, !tbaa !5
  %57 = icmp slt i64 %55, %56
  br i1 %57, label %59, label %58

58:                                               ; preds = %53
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %100

59:                                               ; preds = %53
  %60 = load i32, ptr %11, align 4, !tbaa !9
  %61 = sext i32 %60 to i64
  %62 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %61) #5
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %62, i64 noundef 0) #5
  %64 = load i64, ptr %63, align 8, !tbaa !5
  %65 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, i64 noundef %64)
          to label %66 unwind label %96

66:                                               ; preds = %59
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %65, ptr noundef @.str.4)
          to label %68 unwind label %96

68:                                               ; preds = %66
  %69 = load i32, ptr %11, align 4, !tbaa !9
  %70 = sext i32 %69 to i64
  %71 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %70) #5
  %72 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %71, i64 noundef 1) #5
  %73 = load i64, ptr %72, align 8, !tbaa !5
  %74 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %67, i64 noundef %73)
          to label %75 unwind label %96

75:                                               ; preds = %68
  %76 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %74, ptr noundef @.str.5)
          to label %77 unwind label %96

77:                                               ; preds = %75
  %78 = load i32, ptr %11, align 4, !tbaa !9
  %79 = sext i32 %78 to i64
  %80 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %79) #5
  %81 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %80, i64 noundef 0) #5
  %82 = load i64, ptr %81, align 8, !tbaa !5
  %83 = load i32, ptr %11, align 4, !tbaa !9
  %84 = sext i32 %83 to i64
  %85 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %84) #5
  %86 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %85, i64 noundef 1) #5
  %87 = load i64, ptr %86, align 8, !tbaa !5
  %88 = add nsw i64 %82, %87
  %89 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %76, i64 noundef %88)
          to label %90 unwind label %96

90:                                               ; preds = %77
  %91 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %89, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %92 unwind label %96

92:                                               ; preds = %90
  br label %93

93:                                               ; preds = %92
  %94 = load i32, ptr %11, align 4, !tbaa !9
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %11, align 4, !tbaa !9
  br label %53, !llvm.loop !13

96:                                               ; preds = %90, %77, %75, %68, %66, %59
  %97 = landingpad { ptr, i32 }
          cleanup
  %98 = extractvalue { ptr, i32 } %97, 0
  store ptr %98, ptr %7, align 8
  %99 = extractvalue { ptr, i32 } %97, 1
  store i32 %99, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %104

100:                                              ; preds = %58
  store i1 true, ptr %5, align 1
  %101 = load i1, ptr %5, align 1
  br i1 %101, label %103, label %102

102:                                              ; preds = %100
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  br label %103

103:                                              ; preds = %102, %100
  ret void

104:                                              ; preds = %96, %27, %19
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  br label %105

105:                                              ; preds = %104
  %106 = load ptr, ptr %7, align 8
  %107 = load i32, ptr %8, align 4
  %108 = insertvalue { ptr, i32 } poison, ptr %106, 0
  %109 = insertvalue { ptr, i32 } %108, i32 %107, 1
  resume { ptr, i32 } %109
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IxSaIxEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z18best_solution_evenx(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i64 noundef) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17best_solution_oddx(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i64 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #4

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

attributes #0 = { 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 #1 = { 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 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { noreturn 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 = { nounwind }
attributes #6 = { noreturn 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@.str.2 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [91 x i8], align 1
@__PRETTY_FUNCTION__._Z13best_solutionx = external hidden unnamed_addr constant [37 x i8], align 1
@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 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 #0

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13best_solutionx(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector") align 8 %0, i64 noundef %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::vector", align 8
  tail call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  %5 = and i64 %1, 1
  %6 = icmp eq i64 %5, 0
  br i1 %6, label %7, label %12

7:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #5
  invoke void @_Z18best_solution_evenx(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %3, i64 noundef %1)
          to label %8 unwind label %10

8:                                                ; preds = %7
  %9 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  br label %17

10:                                               ; preds = %7
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  br label %52

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  invoke void @_Z17best_solution_oddx(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %4, i64 noundef %1)
          to label %13 unwind label %15

13:                                               ; preds = %12
  %14 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  br label %17

15:                                               ; preds = %12
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  br label %52

17:                                               ; preds = %13, %8
  %18 = icmp sgt i64 %1, 0
  br i1 %18, label %.lr.ph, label %._crit_edge

19:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %1
  br i1 %exitcond.not, label %.preheader, label %.lr.ph, !llvm.loop !5

.preheader:                                       ; preds = %19
  br i1 %18, label %.lr.ph25, label %._crit_edge

.lr.ph:                                           ; preds = %17, %19
  %indvars.iv = phi i64 [ %indvars.iv.next, %19 ], [ 0, %17 ]
  %20 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #5
  %21 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %20) #5
  %22 = and i64 %21, 4294967295
  %23 = icmp eq i64 %22, 2
  br i1 %23, label %19, label %24

24:                                               ; preds = %.lr.ph
  call void @__assert_fail(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, i32 noundef 197, ptr noundef nonnull @__PRETTY_FUNCTION__._Z13best_solutionx) #6
  unreachable

.lr.ph25:                                         ; preds = %.preheader, %49
  %indvars.iv27 = phi i64 [ %indvars.iv.next28, %49 ], [ 0, %.preheader ]
  %25 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv27) #5
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef 0) #5
  %27 = load i64, ptr %26, align 8, !tbaa !7
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, i64 noundef %27)
          to label %29 unwind label %50

29:                                               ; preds = %.lr.ph25
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %28, ptr noundef nonnull @.str.4)
          to label %31 unwind label %50

31:                                               ; preds = %29
  %32 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv27) #5
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %32, i64 noundef 1) #5
  %34 = load i64, ptr %33, align 8, !tbaa !7
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %30, i64 noundef %34)
          to label %36 unwind label %50

36:                                               ; preds = %31
  %37 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %35, ptr noundef nonnull @.str.5)
          to label %38 unwind label %50

38:                                               ; preds = %36
  %39 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv27) #5
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef 0) #5
  %41 = load i64, ptr %40, align 8, !tbaa !7
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv27) #5
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %42, i64 noundef 1) #5
  %44 = load i64, ptr %43, align 8, !tbaa !7
  %45 = add nsw i64 %44, %41
  %46 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %37, i64 noundef %45)
          to label %47 unwind label %50

47:                                               ; preds = %38
  %48 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %46, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %49 unwind label %50

49:                                               ; preds = %47
  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1
  %exitcond30.not = icmp eq i64 %indvars.iv.next28, %1
  br i1 %exitcond30.not, label %._crit_edge, label %.lr.ph25, !llvm.loop !11

50:                                               ; preds = %47, %38, %36, %31, %29, %.lr.ph25
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %52

._crit_edge:                                      ; preds = %49, %17, %.preheader
  ret void

52:                                               ; preds = %50, %15, %10
  %.pn = phi { ptr, i32 } [ %51, %50 ], [ %11, %10 ], [ %16, %15 ]
  call void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IxSaIxEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z18best_solution_evenx(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i64 noundef) local_unnamed_addr #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IxSaIxEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17best_solution_oddx(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #4

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { 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 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { noreturn 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 = { nounwind }
attributes #6 = { noreturn 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"long long", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = distinct !{!11, !6}


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