; LLVM IR from xirc/cp-algorithm :: atcoder/abc137/D/main.ll (Z5solvev)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"struct.std::array" = type { [2 x i32] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@A = external dso_local global %"class.std::vector", align 8
@B = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solvev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector.0", align 8
  %2 = alloca %"class.std::allocator.2", align 1
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::array", align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.std::priority_queue", align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 24, ptr %1) #6
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #6
  call void @_ZNSaISt5arrayIiLm2EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  invoke void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %14, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %15 unwind label %21

15:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %39, %15
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = load i32, ptr @N, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %25, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %42

21:                                               ; preds = %0
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %3, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %4, align 4
  call void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  br label %112

25:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %26 = getelementptr inbounds %"struct.std::array", ptr %6, i32 0, i32 0
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %28) #6
  %30 = load i32, ptr %29, align 4, !tbaa !5
  store i32 %30, ptr %26, align 4, !tbaa !5
  %31 = getelementptr inbounds i32, ptr %26, i64 1
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @B, i64 noundef %33) #6
  %35 = load i32, ptr %34, align 4, !tbaa !5
  store i32 %35, ptr %31, align 4, !tbaa !5
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %37) #6
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %38, ptr align 4 %6, i64 8, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %39

39:                                               ; preds = %25
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %5, align 4, !tbaa !5
  br label %16, !llvm.loop !11

42:                                               ; preds = %20
  %43 = call ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %44 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  %45 = call ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %46 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %45, ptr %46, align 8
  %47 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  %48 = load ptr, ptr %47, align 8
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %50 = load ptr, ptr %49, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt5arrayIiLm2EESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %48, ptr %50)
          to label %51 unwind label %58

51:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #6
  invoke void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %9)
          to label %52 unwind label %62

52:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  store i32 1, ptr %12, align 4, !tbaa !5
  br label %53

53:                                               ; preds = %105, %52
  %54 = load i32, ptr %12, align 4, !tbaa !5
  %55 = load i32, ptr @M, align 4, !tbaa !5
  %56 = icmp sle i32 %54, %55
  br i1 %56, label %66, label %57

57:                                               ; preds = %53
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  br label %108

58:                                               ; preds = %42
  %59 = landingpad { ptr, i32 }
          cleanup
  %60 = extractvalue { ptr, i32 } %59, 0
  store ptr %60, ptr %3, align 8
  %61 = extractvalue { ptr, i32 } %59, 1
  store i32 %61, ptr %4, align 4
  br label %111

62:                                               ; preds = %51
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %3, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %4, align 4
  br label %110

66:                                               ; preds = %53
  br label %67

67:                                               ; preds = %86, %66
  %68 = load i32, ptr %10, align 4, !tbaa !5
  %69 = load i32, ptr @N, align 4, !tbaa !5
  %70 = icmp slt i32 %68, %69
  br i1 %70, label %71, label %79

71:                                               ; preds = %67
  %72 = load i32, ptr %10, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %73) #6
  %75 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %74, i64 noundef 0) #6
  %76 = load i32, ptr %75, align 4, !tbaa !5
  %77 = load i32, ptr %12, align 4, !tbaa !5
  %78 = icmp sle i32 %76, %77
  br label %79

79:                                               ; preds = %71, %67
  %80 = phi i1 [ false, %67 ], [ %78, %71 ]
  br i1 %80, label %81, label %93

81:                                               ; preds = %79
  %82 = load i32, ptr %10, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %83) #6
  %85 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %84, i64 noundef 1) #6
  invoke void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(25) %9, ptr noundef nonnull align 4 dereferenceable(4) %85)
          to label %86 unwind label %89

86:                                               ; preds = %81
  %87 = load i32, ptr %10, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %10, align 4, !tbaa !5
  br label %67, !llvm.loop !13

89:                                               ; preds = %99, %97, %93, %81
  %90 = landingpad { ptr, i32 }
          cleanup
  %91 = extractvalue { ptr, i32 } %90, 0
  store ptr %91, ptr %3, align 8
  %92 = extractvalue { ptr, i32 } %90, 1
  store i32 %92, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %9) #6
  br label %110

93:                                               ; preds = %79
  %94 = invoke noundef i64 @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %9)
          to label %95 unwind label %89

95:                                               ; preds = %93
  %96 = icmp ne i64 %94, 0
  br i1 %96, label %97, label %104

97:                                               ; preds = %95
  %98 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %9)
          to label %99 unwind label %89

99:                                               ; preds = %97
  %100 = load i32, ptr %98, align 4, !tbaa !5
  %101 = load i32, ptr %11, align 4, !tbaa !5
  %102 = add nsw i32 %101, %100
  store i32 %102, ptr %11, align 4, !tbaa !5
  invoke void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %9)
          to label %103 unwind label %89

103:                                              ; preds = %99
  br label %104

104:                                              ; preds = %103, %95
  br label %105

105:                                              ; preds = %104
  %106 = load i32, ptr %12, align 4, !tbaa !5
  %107 = add nsw i32 %106, 1
  store i32 %107, ptr %12, align 4, !tbaa !5
  br label %53, !llvm.loop !14

108:                                              ; preds = %57
  %109 = load i32, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %9) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #6
  call void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #6
  ret i32 %109

110:                                              ; preds = %89, %62
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #6
  br label %111

111:                                              ; preds = %110, %58
  call void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  br label %112

112:                                              ; preds = %111, %21
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #6
  br label %113

113:                                              ; preds = %112
  %114 = load ptr, ptr %3, align 8
  %115 = load i32, ptr %4, align 4
  %116 = insertvalue { ptr, i32 } poison, ptr %114, 0
  %117 = insertvalue { ptr, i32 } %116, i32 %115, 1
  resume { ptr, i32 } %117
}

; 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 @_ZNSaISt5arrayIiLm2EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt5arrayIiLm2EESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #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 = !{i64 0, i64 8, !10}
!10 = !{!7, !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::array<int, 2>, std::allocator<std::array<int, 2>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>

@N = external dso_local local_unnamed_addr global i32, align 4
@M = external dso_local local_unnamed_addr global i32, align 4
@A = external dso_local global %"class.std::vector", align 8
@B = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solvev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector.0", align 8
  %2 = alloca %"class.std::allocator.2", align 1
  %3 = alloca %"class.std::priority_queue", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #5
  %4 = load i32, ptr @N, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #5
  call void @_ZNSaISt5arrayIiLm2EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  invoke void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %5, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %6 unwind label %11

6:                                                ; preds = %0
  call void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  %7 = load i32, ptr @N, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %6
  %9 = call ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  %10 = call ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt5arrayIiLm2EESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %9, ptr %10)
          to label %21 unwind label %26

11:                                               ; preds = %0
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  br label %48

.lr.ph:                                           ; preds = %6, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %6 ]
  %13 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %indvars.iv) #5
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @B, i64 noundef %indvars.iv) #5
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #5
  store i32 %14, ptr %17, align 4
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %17, i64 4
  store i32 %16, ptr %.sroa.4.0..sroa_idx, align 4, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %18 = load i32, ptr @N, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = icmp slt i64 %indvars.iv.next, %19
  br i1 %20, label %.lr.ph, label %._crit_edge, !llvm.loop !10

21:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #5
  call void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %22 = load i32, ptr @M, align 4, !tbaa !5
  %.not37 = icmp slt i32 %22, 1
  br i1 %.not37, label %._crit_edge41, label %.preheader

.preheader:                                       ; preds = %21, %44
  %.040 = phi i32 [ %45, %44 ], [ 1, %21 ]
  %.01739 = phi i32 [ %.1, %44 ], [ 0, %21 ]
  %.01838 = phi i32 [ %.119.lcssa, %44 ], [ 0, %21 ]
  %23 = load i32, ptr @N, align 4, !tbaa !5
  %24 = icmp slt i32 %.01838, %23
  br i1 %24, label %.lr.ph34.preheader, label %.critedge

.lr.ph34.preheader:                               ; preds = %.preheader
  %25 = sext i32 %.01838 to i64
  br label %.lr.ph34

._crit_edge41:                                    ; preds = %44, %21
  %.017.lcssa = phi i32 [ 0, %21 ], [ %.1, %44 ]
  call void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #5
  call void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #5
  ret i32 %.017.lcssa

26:                                               ; preds = %._crit_edge
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %47

.lr.ph34:                                         ; preds = %.lr.ph34.preheader, %34
  %indvars.iv44 = phi i64 [ %25, %.lr.ph34.preheader ], [ %indvars.iv.next45, %34 ]
  %28 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv44) #5
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %28, i64 noundef 0) #5
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %.not25 = icmp sgt i32 %30, %.040
  br i1 %.not25, label %.critedge.loopexit, label %31

31:                                               ; preds = %.lr.ph34
  %32 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv44) #5
  %33 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %32, i64 noundef 1) #5
  invoke void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(25) %3, ptr noundef nonnull align 4 dereferenceable(4) %33)
          to label %34 unwind label %.loopexit

34:                                               ; preds = %31
  %indvars.iv.next45 = add nsw i64 %indvars.iv44, 1
  %35 = load i32, ptr @N, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = icmp slt i64 %indvars.iv.next45, %36
  br i1 %37, label %.lr.ph34, label %.critedge.loopexit, !llvm.loop !12

.loopexit:                                        ; preds = %31
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %38

.loopexit.split-lp:                               ; preds = %40
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %38

38:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #5
  br label %47

.critedge.loopexit:                               ; preds = %34, %.lr.ph34
  %.119.lcssa.ph.in = phi i64 [ %indvars.iv44, %.lr.ph34 ], [ %indvars.iv.next45, %34 ]
  %.119.lcssa.ph = trunc i64 %.119.lcssa.ph.in to i32
  br label %.critedge

.critedge:                                        ; preds = %.critedge.loopexit, %.preheader
  %.119.lcssa = phi i32 [ %.01838, %.preheader ], [ %.119.lcssa.ph, %.critedge.loopexit ]
  %39 = call noundef i64 @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %.not26 = icmp eq i64 %39, 0
  br i1 %.not26, label %44, label %40

40:                                               ; preds = %.critedge
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = add nsw i32 %42, %.01739
  invoke void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
          to label %44 unwind label %.loopexit.split-lp

44:                                               ; preds = %.critedge, %40
  %.1 = phi i32 [ %43, %40 ], [ %.01739, %.critedge ]
  %45 = add nuw nsw i32 %.040, 1
  %46 = load i32, ptr @M, align 4, !tbaa !5
  %.not.not = icmp slt i32 %.040, %46
  br i1 %.not.not, label %.preheader, label %._crit_edge41, !llvm.loop !13

47:                                               ; preds = %38, %26
  %.pn = phi { ptr, i32 } [ %lpad.phi, %38 ], [ %27, %26 ]
  call void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  br label %48

48:                                               ; preds = %47, %11
  %.pn.pn = phi { ptr, i32 } [ %.pn, %47 ], [ %12, %11 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt5arrayIiLm2EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt5arrayIiLm2EESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIiSt6vectorIiSaIiEESt4lessIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5arrayIiLm2EESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt5arrayIiLm2EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}
!13 = distinct !{!13, !11}


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