; LLVM IR from xirc/cp-algorithm :: atcoder/abc091/C/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<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.__gnu_cxx::__normal_iterator" = type { ptr }
%class.anon = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }
%"struct.std::pair" = type { i32, i32 }

@N = external dso_local global i32, align 4
@rs = external dso_local global %"class.std::vector", align 8
@bs = 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.__gnu_cxx::__normal_iterator", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %class.anon, align 1
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector.0", align 8
  %8 = alloca i8, align 1
  %9 = alloca %"class.std::allocator.4", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::_Bit_reference", align 8
  %16 = alloca %"struct.std::_Bit_reference", align 8
  %17 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @bs) #4
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %1, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  %19 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @bs) #4
  %20 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  %21 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %1, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8
  %23 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %22, ptr %24)
  %25 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @rs) #4
  %26 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  %27 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @rs) #4
  %28 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  store ptr %27, ptr %28, align 8
  %29 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8
  %31 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8
  call void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ5solvevE3$_0EvT_SA_T0_"(ptr %30, ptr %32)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %7) #4
  %33 = load i32, ptr @N, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #4
  store i8 0, ptr %8, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %7, i64 noundef %34, ptr noundef nonnull align 1 dereferenceable(1) %8, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %35 unwind label %41

35:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %36

36:                                               ; preds = %114, %35
  %37 = load i32, ptr %12, align 4, !tbaa !5
  %38 = load i32, ptr @N, align 4, !tbaa !5
  %39 = icmp slt i32 %37, %38
  br i1 %39, label %45, label %40

40:                                               ; preds = %36
  store i32 2, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %117

41:                                               ; preds = %0
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %10, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %11, align 4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  br label %119

45:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  store i32 0, ptr %14, align 4, !tbaa !5
  br label %46

46:                                               ; preds = %108, %45
  %47 = load i32, ptr %14, align 4, !tbaa !5
  %48 = load i32, ptr @N, align 4, !tbaa !5
  %49 = icmp slt i32 %47, %48
  br i1 %49, label %51, label %50

50:                                               ; preds = %46
  store i32 5, ptr %13, align 4
  br label %111

51:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 16, ptr %15) #4
  %52 = load i32, ptr %14, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %7, i64 noundef %53)
          to label %55 unwind label %62

55:                                               ; preds = %51
  %56 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 0
  %57 = extractvalue { ptr, i64 } %54, 0
  store ptr %57, ptr %56, align 8
  %58 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 1
  %59 = extractvalue { ptr, i64 } %54, 1
  store i64 %59, ptr %58, align 8
  %60 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %15) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #4
  br i1 %60, label %61, label %66

61:                                               ; preds = %55
  br label %108

62:                                               ; preds = %51
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %10, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #4
  br label %112

66:                                               ; preds = %55
  %67 = load i32, ptr %12, align 4, !tbaa !5
  %68 = sext i32 %67 to i64
  %69 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @bs, i64 noundef %68) #4
  %70 = getelementptr inbounds %"struct.std::pair", ptr %69, i32 0, i32 0
  %71 = load i32, ptr %70, align 4, !tbaa !11
  %72 = load i32, ptr %14, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @rs, i64 noundef %73) #4
  %75 = getelementptr inbounds %"struct.std::pair", ptr %74, i32 0, i32 0
  %76 = load i32, ptr %75, align 4, !tbaa !11
  %77 = icmp sle i32 %71, %76
  br i1 %77, label %78, label %79

78:                                               ; preds = %66
  br label %108

79:                                               ; preds = %66
  %80 = load i32, ptr %12, align 4, !tbaa !5
  %81 = sext i32 %80 to i64
  %82 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @bs, i64 noundef %81) #4
  %83 = getelementptr inbounds %"struct.std::pair", ptr %82, i32 0, i32 1
  %84 = load i32, ptr %83, align 4, !tbaa !13
  %85 = load i32, ptr %14, align 4, !tbaa !5
  %86 = sext i32 %85 to i64
  %87 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @rs, i64 noundef %86) #4
  %88 = getelementptr inbounds %"struct.std::pair", ptr %87, i32 0, i32 1
  %89 = load i32, ptr %88, align 4, !tbaa !13
  %90 = icmp sle i32 %84, %89
  br i1 %90, label %91, label %92

91:                                               ; preds = %79
  br label %108

92:                                               ; preds = %79
  call void @llvm.lifetime.start.p0(i64 16, ptr %16) #4
  %93 = load i32, ptr %14, align 4, !tbaa !5
  %94 = sext i32 %93 to i64
  %95 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %7, i64 noundef %94)
          to label %96 unwind label %104

96:                                               ; preds = %92
  %97 = getelementptr inbounds { ptr, i64 }, ptr %16, i32 0, i32 0
  %98 = extractvalue { ptr, i64 } %95, 0
  store ptr %98, ptr %97, align 8
  %99 = getelementptr inbounds { ptr, i64 }, ptr %16, i32 0, i32 1
  %100 = extractvalue { ptr, i64 } %95, 1
  store i64 %100, ptr %99, align 8
  %101 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %16, i1 noundef zeroext true) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %16) #4
  %102 = load i32, ptr %6, align 4, !tbaa !5
  %103 = add nsw i32 %102, 1
  store i32 %103, ptr %6, align 4, !tbaa !5
  store i32 5, ptr %13, align 4
  br label %111

104:                                              ; preds = %92
  %105 = landingpad { ptr, i32 }
          cleanup
  %106 = extractvalue { ptr, i32 } %105, 0
  store ptr %106, ptr %10, align 8
  %107 = extractvalue { ptr, i32 } %105, 1
  store i32 %107, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %16) #4
  br label %112

108:                                              ; preds = %91, %78, %61
  %109 = load i32, ptr %14, align 4, !tbaa !5
  %110 = add nsw i32 %109, 1
  store i32 %110, ptr %14, align 4, !tbaa !5
  br label %46, !llvm.loop !14

111:                                              ; preds = %96, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  br label %113

112:                                              ; preds = %104, %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %7) #4
  br label %119

113:                                              ; preds = %111
  br label %114

114:                                              ; preds = %113
  %115 = load i32, ptr %12, align 4, !tbaa !5
  %116 = add nsw i32 %115, 1
  store i32 %116, ptr %12, align 4, !tbaa !5
  br label %36, !llvm.loop !16

117:                                              ; preds = %40
  %118 = load i32, ptr %6, align 4, !tbaa !5
  store i32 1, ptr %13, align 4
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %7) #4
  call void @llvm.lifetime.end.p0(i64 40, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  ret i32 %118

119:                                              ; preds = %112, %41
  call void @llvm.lifetime.end.p0(i64 40, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %120

120:                                              ; preds = %119
  %121 = load ptr, ptr %10, align 8
  %122 = load i32, ptr %11, align 4
  %123 = insertvalue { ptr, i32 } poison, ptr %121, 0
  %124 = insertvalue { ptr, i32 } %123, i32 %122, 1
  resume { ptr, i32 } %124
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #1

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare hidden void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ5solvevE3$_0EvT_SA_T0_"(ptr, ptr) #1

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress 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 = { 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 = !{!"bool", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


; 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::vector.0" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@N = external dso_local local_unnamed_addr global i32, align 4
@rs = external dso_local global %"class.std::vector", align 8
@bs = 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 i8, align 1
  %3 = alloca %"class.std::allocator.4", align 1
  %4 = alloca %"struct.std::_Bit_reference", align 8
  %5 = alloca %"struct.std::_Bit_reference", align 8
  %6 = tail call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @bs) #4
  %7 = tail call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @bs) #4
  tail call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %6, ptr %7)
  %8 = tail call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @rs) #4
  %9 = tail call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @rs) #4
  tail call void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ5solvevE3$_0EvT_SA_T0_"(ptr %8, ptr %9)
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #4
  %10 = load i32, ptr @N, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #4
  store i8 0, ptr %2, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #4
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %11, ptr noundef nonnull align 1 dereferenceable(1) %2, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %12 unwind label %19

12:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #4
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.preheader.preheader, label %._crit_edge

.preheader.preheader:                             ; preds = %12
  %15 = getelementptr inbounds i8, ptr %4, i64 8
  %16 = getelementptr inbounds i8, ptr %5, i64 8
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.loopexit
  %17 = phi i32 [ %13, %.preheader.preheader ], [ %53, %.loopexit ]
  %indvars.iv36 = phi i64 [ 0, %.preheader.preheader ], [ %indvars.iv.next37, %.loopexit ]
  %.02029 = phi i32 [ 0, %.preheader.preheader ], [ %.121, %.loopexit ]
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph, label %.loopexit

._crit_edge:                                      ; preds = %.loopexit, %12
  %.020.lcssa = phi i32 [ 0, %12 ], [ %.121, %.loopexit ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %1) #4
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #4
  ret i32 %.020.lcssa

19:                                               ; preds = %0
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #4
  br label %57

.lr.ph:                                           ; preds = %.preheader, %49
  %indvars.iv = phi i64 [ %indvars.iv.next, %49 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #4
  %21 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %indvars.iv)
          to label %22 unwind label %26

22:                                               ; preds = %.lr.ph
  %23 = extractvalue { ptr, i64 } %21, 0
  store ptr %23, ptr %4, align 8
  %24 = extractvalue { ptr, i64 } %21, 1
  store i64 %24, ptr %15, align 8
  %25 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %4) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #4
  br i1 %25, label %49, label %28

26:                                               ; preds = %.lr.ph
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #4
  br label %56

28:                                               ; preds = %22
  %29 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @bs, i64 noundef %indvars.iv36) #4
  %30 = load i32, ptr %29, align 4, !tbaa !11
  %31 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @rs, i64 noundef %indvars.iv) #4
  %32 = load i32, ptr %31, align 4, !tbaa !11
  %.not = icmp sgt i32 %30, %32
  br i1 %.not, label %33, label %49

33:                                               ; preds = %28
  %34 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @bs, i64 noundef %indvars.iv36) #4
  %35 = getelementptr inbounds i8, ptr %34, i64 4
  %36 = load i32, ptr %35, align 4, !tbaa !13
  %37 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @rs, i64 noundef %indvars.iv) #4
  %38 = getelementptr inbounds i8, ptr %37, i64 4
  %39 = load i32, ptr %38, align 4, !tbaa !13
  %.not22 = icmp sgt i32 %36, %39
  br i1 %.not22, label %40, label %49

40:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #4
  %41 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %indvars.iv)
          to label %42 unwind label %47

42:                                               ; preds = %40
  %43 = extractvalue { ptr, i64 } %41, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i64 } %41, 1
  store i64 %44, ptr %16, align 8
  %45 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %5, i1 noundef zeroext true) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #4
  %46 = add nsw i32 %.02029, 1
  %.pre = load i32, ptr @N, align 4, !tbaa !5
  br label %.loopexit

47:                                               ; preds = %40
  %48 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #4
  br label %56

49:                                               ; preds = %33, %28, %22
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %50 = load i32, ptr @N, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = icmp slt i64 %indvars.iv.next, %51
  br i1 %52, label %.lr.ph, label %.loopexit, !llvm.loop !14

.loopexit:                                        ; preds = %49, %.preheader, %42
  %53 = phi i32 [ %.pre, %42 ], [ %17, %.preheader ], [ %50, %49 ]
  %.121 = phi i32 [ %46, %42 ], [ %.02029, %.preheader ], [ %.02029, %49 ]
  %indvars.iv.next37 = add nuw nsw i64 %indvars.iv36, 1
  %54 = sext i32 %53 to i64
  %55 = icmp slt i64 %indvars.iv.next37, %54
  br i1 %55, label %.preheader, label %._crit_edge, !llvm.loop !16

56:                                               ; preds = %47, %26
  %.pn = phi { ptr, i32 } [ %48, %47 ], [ %27, %26 ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %1) #4
  br label %57

57:                                               ; preds = %56, %19
  %.pn.pn = phi { ptr, i32 } [ %.pn, %56 ], [ %20, %19 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #4
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #1

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare hidden void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ5solvevE3$_0EvT_SA_T0_"(ptr, ptr) local_unnamed_addr #1

; 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 nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_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 nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress 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 = { 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 = !{!"bool", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15, !17}
!17 = !{!"llvm.loop.unswitch.partial.disable"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,SCCPPass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass,TailCallElimPass