; LLVM IR from plskz/competitive-programming :: Junior Training Sheet/B (5)

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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %9 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %10 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %11 = getelementptr i8, ptr %10, i64 -24
  %12 = load i64, ptr %11, align 8
  %13 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %12
  %14 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %13, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %17 = load i32, ptr %3, align 4, !tbaa !8
  %18 = zext i32 %17 to i64
  %19 = call ptr @llvm.stacksave.p0()
  store ptr %19, ptr %4, align 8
  %20 = alloca %"struct.std::pair", i64 %18, align 16
  store i64 %18, ptr %5, align 8
  %21 = icmp eq i64 %18, 0
  br i1 %21, label %28, label %22

22:                                               ; preds = %0
  %23 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %18
  br label %24

24:                                               ; preds = %24, %22
  %25 = phi ptr [ %20, %22 ], [ %26, %24 ]
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %25)
  %26 = getelementptr inbounds %"struct.std::pair", ptr %25, i64 1
  %27 = icmp eq ptr %26, %23
  br i1 %27, label %28, label %24

28:                                               ; preds = %24, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %29

29:                                               ; preds = %45, %28
  %30 = load i32, ptr %6, align 4, !tbaa !8
  %31 = load i32, ptr %3, align 4, !tbaa !8
  %32 = icmp slt i32 %30, %31
  br i1 %32, label %34, label %33

33:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %48

34:                                               ; preds = %29
  %35 = load i32, ptr %6, align 4, !tbaa !8
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %36
  %38 = getelementptr inbounds %"struct.std::pair", ptr %37, i32 0, i32 1
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %38)
  %40 = load i32, ptr %6, align 4, !tbaa !8
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %41
  %43 = getelementptr inbounds %"struct.std::pair", ptr %42, i32 0, i32 0
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %39, ptr noundef nonnull align 4 dereferenceable(4) %43)
  br label %45

45:                                               ; preds = %34
  %46 = load i32, ptr %6, align 4, !tbaa !8
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %6, align 4, !tbaa !8
  br label %29, !llvm.loop !11

48:                                               ; preds = %33
  %49 = load i32, ptr %3, align 4, !tbaa !8
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %50
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef %20, ptr noundef %51)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  store i32 0, ptr %7, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %52 = load i32, ptr %3, align 4, !tbaa !8
  %53 = sub nsw i32 %52, 1
  store i32 %53, ptr %8, align 4, !tbaa !8
  br label %54

54:                                               ; preds = %86, %48
  %55 = load i32, ptr %8, align 4, !tbaa !8
  %56 = icmp sge i32 %55, 0
  br i1 %56, label %57, label %60

57:                                               ; preds = %54
  %58 = load i32, ptr %2, align 4, !tbaa !8
  %59 = icmp ne i32 %58, 0
  br label %60

60:                                               ; preds = %57, %54
  %61 = phi i1 [ false, %54 ], [ %59, %57 ]
  br i1 %61, label %63, label %62

62:                                               ; preds = %60
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %89

63:                                               ; preds = %60
  %64 = load i32, ptr %8, align 4, !tbaa !8
  %65 = sext i32 %64 to i64
  %66 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %65
  %67 = getelementptr inbounds %"struct.std::pair", ptr %66, i32 0, i32 1
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %67)
  %69 = load i32, ptr %68, align 4, !tbaa !8
  %70 = load i32, ptr %8, align 4, !tbaa !8
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %71
  %73 = getelementptr inbounds %"struct.std::pair", ptr %72, i32 0, i32 0
  %74 = load i32, ptr %73, align 8, !tbaa !13
  %75 = mul nsw i32 %69, %74
  %76 = load i32, ptr %7, align 4, !tbaa !8
  %77 = add nsw i32 %76, %75
  store i32 %77, ptr %7, align 4, !tbaa !8
  %78 = load i32, ptr %8, align 4, !tbaa !8
  %79 = sext i32 %78 to i64
  %80 = getelementptr inbounds %"struct.std::pair", ptr %20, i64 %79
  %81 = getelementptr inbounds %"struct.std::pair", ptr %80, i32 0, i32 1
  %82 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %81)
  %83 = load i32, ptr %82, align 4, !tbaa !8
  %84 = load i32, ptr %2, align 4, !tbaa !8
  %85 = sub nsw i32 %84, %83
  store i32 %85, ptr %2, align 4, !tbaa !8
  br label %86

86:                                               ; preds = %63
  %87 = load i32, ptr %8, align 4, !tbaa !8
  %88 = add nsw i32 %87, -1
  store i32 %88, ptr %8, align 4, !tbaa !8
  br label %54, !llvm.loop !15

89:                                               ; preds = %62
  %90 = load i32, ptr %7, align 4, !tbaa !8
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %90)
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  %92 = load ptr, ptr %4, align 8
  call void @llvm.stackrestore.p0(ptr %92)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %93 = load i32, ptr %1, align 4
  ret i32 %93
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "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 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !9, i64 0}
!14 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!15 = distinct !{!15, !12}


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %4 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %5 = getelementptr i8, ptr %4, i64 -24
  %6 = load i64, ptr %5, align 8
  %7 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %6
  %8 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %7, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %11 = load i32, ptr %2, align 4, !tbaa !8
  %12 = zext i32 %11 to i64
  %13 = call ptr @llvm.stacksave.p0()
  %14 = alloca %"struct.std::pair", i64 %12, align 16
  %15 = icmp eq i32 %11, 0
  br i1 %15, label %.loopexit, label %16

16:                                               ; preds = %0
  %17 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %12
  br label %18

18:                                               ; preds = %18, %16
  %19 = phi ptr [ %14, %16 ], [ %20, %18 ]
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %19)
  %20 = getelementptr inbounds i8, ptr %19, i64 8
  %21 = icmp eq ptr %20, %17
  br i1 %21, label %.loopexit, label %18

.loopexit:                                        ; preds = %18, %0
  %22 = load i32, ptr %2, align 4, !tbaa !8
  %23 = icmp sgt i32 %22, 0
  br i1 %23, label %.lr.ph, label %.loopexit.._crit_edge_crit_edge

.loopexit.._crit_edge_crit_edge:                  ; preds = %.loopexit
  %.pre = sext i32 %22 to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.loopexit.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.loopexit.._crit_edge_crit_edge ], [ %36, %.lr.ph ]
  %24 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %.pre-phi
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef nonnull %14, ptr noundef nonnull %24)
  %25 = load i32, ptr %2, align 4, !tbaa !8
  %26 = icmp sgt i32 %25, 0
  %27 = load i32, ptr %1, align 4
  %28 = icmp ne i32 %27, 0
  %29 = select i1 %26, i1 %28, i1 false
  br i1 %29, label %.lr.ph20.preheader, label %._crit_edge21

.lr.ph20.preheader:                               ; preds = %._crit_edge
  %30 = zext nneg i32 %25 to i64
  br label %.lr.ph20

.lr.ph:                                           ; preds = %.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.loopexit ]
  %31 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv
  %32 = getelementptr inbounds i8, ptr %31, i64 4
  %33 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %32)
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %33, ptr noundef nonnull align 4 dereferenceable(4) %31)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %35 = load i32, ptr %2, align 4, !tbaa !8
  %36 = sext i32 %35 to i64
  %37 = icmp slt i64 %indvars.iv.next, %36
  br i1 %37, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge21:                                    ; preds = %.lr.ph20, %._crit_edge
  %.012.lcssa = phi i32 [ 0, %._crit_edge ], [ %45, %.lr.ph20 ]
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.012.lcssa)
  call void @llvm.stackrestore.p0(ptr %13)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

.lr.ph20:                                         ; preds = %.lr.ph20.preheader, %.lr.ph20
  %indvars.iv26 = phi i64 [ %30, %.lr.ph20.preheader ], [ %indvars.iv.next27, %.lr.ph20 ]
  %.01217 = phi i32 [ 0, %.lr.ph20.preheader ], [ %45, %.lr.ph20 ]
  %indvars.iv.next27 = add nsw i64 %indvars.iv26, -1
  %39 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv.next27
  %40 = getelementptr inbounds i8, ptr %39, i64 4
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %40)
  %42 = load i32, ptr %41, align 4, !tbaa !8
  %43 = load i32, ptr %39, align 8, !tbaa !13
  %44 = mul nsw i32 %43, %42
  %45 = add nsw i32 %44, %.01217
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %40)
  %47 = load i32, ptr %46, align 4, !tbaa !8
  %48 = load i32, ptr %1, align 4, !tbaa !8
  %49 = sub nsw i32 %48, %47
  store i32 %49, ptr %1, align 4, !tbaa !8
  %50 = icmp ugt i64 %indvars.iv26, 1
  %51 = icmp ne i32 %48, %47
  %52 = select i1 %50, i1 %51, i1 false
  br i1 %52, label %.lr.ph20, label %._crit_edge21, !llvm.loop !15
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !9, i64 0}
!14 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!15 = distinct !{!15, !12}


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