; LLVM IR from tangjz/acm-icpc :: lydsy/1097.ll (Z5solveiPi)

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

@n = external dso_local global i32, align 4
@k = external dso_local global i32, align 4
@dis = external dso_local global [20001 x i32], align 16
@e = external dso_local global [20001 x %"class.std::vector"], align 16
@Q = external dso_local global %"class.std::priority_queue", align 8
@vis = external dso_local global [20001 x i8], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solveiPi(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca %"struct.std::pair", align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca %"struct.std::pair", align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  br label %16

16:                                               ; preds = %20, %2
  %17 = call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %18 = xor i1 %17, true
  br i1 %18, label %19, label %21

19:                                               ; preds = %16
  br label %20

20:                                               ; preds = %19
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  br label %16, !llvm.loop !11

21:                                               ; preds = %16
  %22 = load i32, ptr @n, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = mul i64 %23, 1
  call void @llvm.memset.p0.i64(ptr align 1 getelementptr inbounds (i8, ptr @vis, i64 1), i8 0, i64 %24, i1 false)
  %25 = load i32, ptr @n, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = mul i64 %26, 4
  call void @llvm.memset.p0.i64(ptr align 4 getelementptr inbounds (i32, ptr @dis, i64 1), i8 63, i64 %27, i1 false)
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %29
  store i32 0, ptr %30, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  %31 = load i32, ptr %3, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = sub nsw i32 0, %34
  store i32 %35, ptr %6, align 4, !tbaa !5
  %36 = call i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i64 %36, ptr %5, align 4
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) @Q, ptr noundef nonnull align 4 dereferenceable(8) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %37

37:                                               ; preds = %102, %100, %21
  %38 = call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %39 = xor i1 %38, true
  br i1 %39, label %40, label %103

40:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %41 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3topEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %42 = getelementptr inbounds %"struct.std::pair", ptr %41, i32 0, i32 1
  %43 = load i32, ptr %42, align 4, !tbaa !13
  store i32 %43, ptr %7, align 4, !tbaa !5
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %44 = load i32, ptr %7, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [20001 x i8], ptr @vis, i64 0, i64 %45
  %47 = load i8, ptr %46, align 1, !tbaa !15, !range !17, !noundef !18
  %48 = trunc i8 %47 to i1
  br i1 %48, label %49, label %50

49:                                               ; preds = %40
  store i32 5, ptr %8, align 4
  br label %100, !llvm.loop !19

50:                                               ; preds = %40
  %51 = load i32, ptr %7, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [20001 x i8], ptr @vis, i64 0, i64 %52
  store i8 1, ptr %53, align 1, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %54 = load i32, ptr %7, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [20001 x %"class.std::vector"], ptr @e, i64 0, i64 %55
  %57 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %56) #5
  %58 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %57, ptr %58, align 8
  br label %59

59:                                               ; preds = %97, %50
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %60 = load i32, ptr %7, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds [20001 x %"class.std::vector"], ptr @e, i64 0, i64 %61
  %63 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %62) #5
  %64 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %63, ptr %64, align 8
  %65 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br i1 %65, label %67, label %66

66:                                               ; preds = %59
  store i32 7, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %99

67:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  %68 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  %69 = getelementptr inbounds %"struct.std::pair", ptr %68, i32 0, i32 1
  %70 = load i32, ptr %69, align 4, !tbaa !13
  store i32 %70, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  %71 = load i32, ptr %7, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %72
  %74 = load i32, ptr %73, align 4, !tbaa !5
  %75 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  %76 = getelementptr inbounds %"struct.std::pair", ptr %75, i32 0, i32 0
  %77 = load i32, ptr %76, align 4, !tbaa !20
  %78 = add nsw i32 %74, %77
  store i32 %78, ptr %12, align 4, !tbaa !5
  %79 = load i32, ptr %11, align 4, !tbaa !5
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %80
  %82 = load i32, ptr %81, align 4, !tbaa !5
  %83 = load i32, ptr %12, align 4, !tbaa !5
  %84 = icmp sgt i32 %82, %83
  br i1 %84, label %85, label %96

85:                                               ; preds = %67
  %86 = load i32, ptr %12, align 4, !tbaa !5
  %87 = load i32, ptr %11, align 4, !tbaa !5
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %88
  store i32 %86, ptr %89, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #5
  %90 = load i32, ptr %11, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %91
  %93 = load i32, ptr %92, align 4, !tbaa !5
  %94 = sub nsw i32 0, %93
  store i32 %94, ptr %14, align 4, !tbaa !5
  %95 = call i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %14, ptr noundef nonnull align 4 dereferenceable(4) %11)
  store i64 %95, ptr %13, align 4
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) @Q, ptr noundef nonnull align 4 dereferenceable(8) %13)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  br label %96

96:                                               ; preds = %85, %67
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %97

97:                                               ; preds = %96
  %98 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  br label %59, !llvm.loop !21

99:                                               ; preds = %66
  store i32 0, ptr %8, align 4
  br label %100

100:                                              ; preds = %99, %49
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  %101 = load i32, ptr %8, align 4
  switch i32 %101, label %137 [
    i32 0, label %102
    i32 5, label %37
  ]

102:                                              ; preds = %100
  br label %37, !llvm.loop !19

103:                                              ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  store i32 0, ptr %15, align 4, !tbaa !5
  br label %104

104:                                              ; preds = %119, %103
  %105 = load i32, ptr %15, align 4, !tbaa !5
  %106 = load i32, ptr @k, align 4, !tbaa !5
  %107 = icmp slt i32 %105, %106
  br i1 %107, label %109, label %108

108:                                              ; preds = %104
  store i32 10, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  br label %122

109:                                              ; preds = %104
  %110 = load i32, ptr %15, align 4, !tbaa !5
  %111 = add nsw i32 %110, 2
  %112 = sext i32 %111 to i64
  %113 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %112
  %114 = load i32, ptr %113, align 4, !tbaa !5
  %115 = load ptr, ptr %4, align 8, !tbaa !9
  %116 = load i32, ptr %15, align 4, !tbaa !5
  %117 = sext i32 %116 to i64
  %118 = getelementptr inbounds i32, ptr %115, i64 %117
  store i32 %114, ptr %118, align 4, !tbaa !5
  br label %119

119:                                              ; preds = %109
  %120 = load i32, ptr %15, align 4, !tbaa !5
  %121 = add nsw i32 %120, 1
  store i32 %121, ptr %15, align 4, !tbaa !5
  br label %104, !llvm.loop !22

122:                                              ; preds = %108
  %123 = load i32, ptr getelementptr inbounds ([20001 x i32], ptr @dis, i64 0, i64 1), align 4, !tbaa !5
  %124 = load ptr, ptr %4, align 8, !tbaa !9
  %125 = load i32, ptr @k, align 4, !tbaa !5
  %126 = sext i32 %125 to i64
  %127 = getelementptr inbounds i32, ptr %124, i64 %126
  store i32 %123, ptr %127, align 4, !tbaa !5
  %128 = load i32, ptr @n, align 4, !tbaa !5
  %129 = sext i32 %128 to i64
  %130 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %129
  %131 = load i32, ptr %130, align 4, !tbaa !5
  %132 = load ptr, ptr %4, align 8, !tbaa !9
  %133 = load i32, ptr @k, align 4, !tbaa !5
  %134 = add nsw i32 %133, 1
  %135 = sext i32 %134 to i64
  %136 = getelementptr inbounds i32, ptr %132, i64 %135
  store i32 %131, ptr %136, align 4, !tbaa !5
  ret void

137:                                              ; preds = %100
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(8)) #0 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 i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #0

; 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 noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 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 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !6, i64 4}
!14 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!15 = !{!16, !16, i64 0}
!16 = !{!"bool", !7, i64 0}
!17 = !{i8 0, i8 2}
!18 = !{}
!19 = distinct !{!19, !12}
!20 = !{!14, !6, i64 0}
!21 = distinct !{!21, !12}
!22 = distinct !{!22, !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<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local local_unnamed_addr global i32, align 4
@k = external dso_local local_unnamed_addr global i32, align 4
@dis = external dso_local local_unnamed_addr global [20001 x i32], align 16
@e = external dso_local global [20001 x %"class.std::vector"], align 16
@Q = external dso_local global %"class.std::priority_queue", align 8
@vis = external dso_local local_unnamed_addr global [20001 x i8], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solveiPi(i32 noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::pair", align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::pair", align 8
  %10 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  %11 = tail call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  br i1 %11, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  tail call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %12 = tail call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  br i1 %12, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %2
  %13 = load i32, ptr @n, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  tail call void @llvm.memset.p0.i64(ptr nonnull align 1 getelementptr inbounds (i8, ptr @vis, i64 1), i8 0, i64 %14, i1 false)
  %15 = shl nsw i64 %14, 2
  tail call void @llvm.memset.p0.i64(ptr nonnull align 4 getelementptr inbounds (i8, ptr @dis, i64 4), i8 63, i64 %15, i1 false)
  %16 = sext i32 %0 to i64
  %17 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %16
  store i32 0, ptr %17, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  %18 = call i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i64 %18, ptr %4, align 8
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) @Q, ptr noundef nonnull align 4 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  %19 = call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  br i1 %19, label %.preheader, label %.lr.ph19

.preheader:                                       ; preds = %55, %._crit_edge
  %20 = load i32, ptr @k, align 4, !tbaa !5
  %21 = icmp sgt i32 %20, 0
  br i1 %21, label %.lr.ph21, label %.preheader.._crit_edge22_crit_edge

.preheader.._crit_edge22_crit_edge:               ; preds = %.preheader
  %.pre = sext i32 %20 to i64
  br label %._crit_edge22

.lr.ph19:                                         ; preds = %._crit_edge, %55
  %22 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3topEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %23 = getelementptr inbounds i8, ptr %22, i64 4
  %24 = load i32, ptr %23, align 4, !tbaa !11
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [20001 x i8], ptr @vis, i64 0, i64 %25
  %27 = load i8, ptr %26, align 1, !tbaa !13, !range !15, !noundef !16
  %28 = trunc nuw i8 %27 to i1
  br i1 %28, label %55, label %29, !llvm.loop !17

29:                                               ; preds = %.lr.ph19
  store i8 1, ptr %26, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  %30 = getelementptr inbounds [20001 x %"class.std::vector"], ptr @e, i64 0, i64 %25
  %31 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %30) #5
  store ptr %31, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %32 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %30) #5
  store ptr %32, ptr %7, align 8
  %33 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  br i1 %33, label %.lr.ph16, label %._crit_edge17

.lr.ph16:                                         ; preds = %29
  %34 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %25
  br label %35

._crit_edge17:                                    ; preds = %51, %29
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %55

35:                                               ; preds = %.lr.ph16, %51
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #5
  %36 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  %37 = getelementptr inbounds i8, ptr %36, i64 4
  %38 = load i32, ptr %37, align 4, !tbaa !11
  store i32 %38, ptr %8, align 4, !tbaa !5
  %39 = load i32, ptr %34, align 4, !tbaa !5
  %40 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  %41 = load i32, ptr %40, align 4, !tbaa !18
  %42 = add nsw i32 %41, %39
  %43 = load i32, ptr %8, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = icmp sgt i32 %46, %42
  br i1 %47, label %48, label %51

48:                                               ; preds = %35
  store i32 %42, ptr %45, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #5
  %49 = sub nsw i32 0, %42
  store i32 %49, ptr %10, align 4, !tbaa !5
  %50 = call i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %8)
  store i64 %50, ptr %9, align 8
  call void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) @Q, ptr noundef nonnull align 4 dereferenceable(8) %9)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #5
  br label %51

51:                                               ; preds = %48, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #5
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %53 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %30) #5
  store ptr %53, ptr %7, align 8
  %54 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  br i1 %54, label %35, label %._crit_edge17, !llvm.loop !19

55:                                               ; preds = %.lr.ph19, %._crit_edge17
  %56 = call noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25) @Q)
  br i1 %56, label %.preheader, label %.lr.ph19

._crit_edge22:                                    ; preds = %.lr.ph21, %.preheader.._crit_edge22_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.preheader.._crit_edge22_crit_edge ], [ %72, %.lr.ph21 ]
  %57 = load i32, ptr getelementptr inbounds (i8, ptr @dis, i64 4), align 4, !tbaa !5
  %58 = getelementptr inbounds i32, ptr %1, i64 %.pre-phi
  store i32 %57, ptr %58, align 4, !tbaa !5
  %59 = load i32, ptr @n, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %60
  %62 = load i32, ptr %61, align 4, !tbaa !5
  %63 = load i32, ptr @k, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = getelementptr i32, ptr %1, i64 %64
  %66 = getelementptr i8, ptr %65, i64 4
  store i32 %62, ptr %66, align 4, !tbaa !5
  ret void

.lr.ph21:                                         ; preds = %.preheader, %.lr.ph21
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph21 ], [ 0, %.preheader ]
  %67 = add nuw nsw i64 %indvars.iv, 2
  %68 = getelementptr inbounds [20001 x i32], ptr @dis, i64 0, i64 %67
  %69 = load i32, ptr %68, align 4, !tbaa !5
  %70 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  store i32 %69, ptr %70, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %71 = load i32, ptr @k, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = icmp slt i64 %indvars.iv.next, %72
  br i1 %73, label %.lr.ph21, label %._crit_edge22, !llvm.loop !20
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 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 i64 @_ZSt9make_pairIiRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

; 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 noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt14priority_queueISt4pairIiiESt6vectorIS1_SaIS1_EESt4lessIS1_EE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 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 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 4}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !10}
!18 = !{!12, !6, i64 0}
!19 = distinct !{!19, !10}
!20 = distinct !{!20, !10}


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