; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2019-20/Jan/Gold/boards.ll (Z3insii)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_iterator" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@m = external dso_local global %"class.std::map", align 8

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3insii(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %6 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %9 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %10 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %11 = alloca %"struct.std::_Rb_tree_iterator", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %12 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE11upper_boundERS3_(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %13 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %6, i32 0, i32 0
  store ptr %12, ptr %13, align 8
  %14 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %6, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8
  %16 = call ptr @_ZSt4prevISt17_Rb_tree_iteratorISt4pairIKiiEEET_S5_NSt15iterator_traitsIS5_E15difference_typeE(ptr %15, i64 noundef 1)
  %17 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %5, i32 0, i32 0
  store ptr %16, ptr %17, align 8
  %18 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %19 = getelementptr inbounds %"struct.std::pair", ptr %18, i32 0, i32 1
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = icmp sle i32 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %2
  store i32 1, ptr %7, align 4
  br label %49

24:                                               ; preds = %2
  %25 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef 0) #5
  %26 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %8, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  br label %27

27:                                               ; preds = %39, %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %28 = call ptr @_ZSt3endISt3mapIiiSt4lessIiESaISt4pairIKiiEEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(48) @m)
  %29 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %9, i32 0, i32 0
  store ptr %28, ptr %29, align 8
  %30 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  br i1 %30, label %31, label %37

31:                                               ; preds = %27
  %32 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %33 = getelementptr inbounds %"struct.std::pair", ptr %32, i32 0, i32 1
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = icmp sgt i32 %34, %35
  br label %37

37:                                               ; preds = %31, %27
  %38 = phi i1 [ false, %27 ], [ %36, %31 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br i1 %38, label %39, label %46

39:                                               ; preds = %37
  %40 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef 0) #5
  %41 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %10, i32 0, i32 0
  store ptr %40, ptr %41, align 8
  %42 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %10, i32 0, i32 0
  %43 = load ptr, ptr %42, align 8
  %44 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr %43)
  %45 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %11, i32 0, i32 0
  store ptr %44, ptr %45, align 8
  br label %27, !llvm.loop !11

46:                                               ; preds = %37
  %47 = load i32, ptr %4, align 4, !tbaa !5
  %48 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i32 %47, ptr %48, align 4, !tbaa !5
  store i32 0, ptr %7, align 4
  br label %49

49:                                               ; preds = %46, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  %50 = load i32, ptr %7, align 4
  switch i32 %50, label %52 [
    i32 0, label %51
    i32 1, label %51
  ]

51:                                               ; preds = %49, %49
  ret void

52:                                               ; preds = %49
  unreachable
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt17_Rb_tree_iteratorISt4pairIKiiEEET_S5_NSt15iterator_traitsIS5_E15difference_typeE(ptr, i64 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE11upper_boundERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt3mapIiiSt4lessIiESaISt4pairIKiiEEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(48)) #4

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E(ptr noundef nonnull align 8 dereferenceable(48), ptr) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { 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 #3 = { 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 #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, !6, i64 4}
!10 = !{!"_ZTSSt4pairIKiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_iterator" = type { ptr }

@m = external dso_local global %"class.std::map", align 8

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3insii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %6 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE11upper_boundERS3_(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %7 = call ptr @_ZSt4prevISt17_Rb_tree_iteratorISt4pairIKiiEEET_S5_NSt15iterator_traitsIS5_E15difference_typeE(ptr %6, i64 noundef 1)
  store ptr %7, ptr %4, align 8
  %8 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  %9 = getelementptr inbounds i8, ptr %8, i64 4
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %.not = icmp sgt i32 %10, %1
  br i1 %.not, label %11, label %25

11:                                               ; preds = %2
  %12 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %4, i32 noundef 0) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %13 = call ptr @_ZSt3endISt3mapIiiSt4lessIiESaISt4pairIKiiEEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(48) @m)
  store ptr %13, ptr %5, align 8
  %14 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  br i1 %14, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %11, %19
  %15 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  %16 = getelementptr inbounds i8, ptr %15, i64 4
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = icmp sgt i32 %17, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br i1 %18, label %19, label %.loopexit

19:                                               ; preds = %.lr.ph
  %20 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %4, i32 noundef 0) #5
  %21 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr %20)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %22 = call ptr @_ZSt3endISt3mapIiiSt4lessIiESaISt4pairIKiiEEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(48) @m)
  store ptr %22, ptr %5, align 8
  %23 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  br i1 %23, label %.lr.ph, label %.critedge, !llvm.loop !11

.critedge:                                        ; preds = %19, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %.critedge
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @m, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i32 %1, ptr %24, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %2, %.loopexit
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt17_Rb_tree_iteratorISt4pairIKiiEEET_S5_NSt15iterator_traitsIS5_E15difference_typeE(ptr, i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE11upper_boundERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt3mapIiiSt4lessIiESaISt4pairIKiiEEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5eraseB5cxx11ESt17_Rb_tree_iteratorIS4_E(ptr noundef nonnull align 8 dereferenceable(48), ptr) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { 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 #3 = { 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 #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, !6, i64 4}
!10 = !{!"_ZTSSt4pairIKiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass