; LLVM IR from kazunetakahashi/atcoder :: 2019/1005_AGC039/C.ll (Z4calcRKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE)

; 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.mint = type { i64 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }
%"struct.std::pair" = type { i32, %class.mint }

; 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 nounwind uwtable
declare dso_local void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN4mintpLERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z4calcRKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE(ptr noundef nonnull align 8 dereferenceable(48) %0) #2 {
  %2 = alloca %class.mint, align 8
  %3 = alloca ptr, align 8
  %4 = alloca %class.mint, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca ptr, align 8
  %9 = alloca %class.mint, align 8
  %10 = alloca %class.mint, align 8
  %11 = alloca %class.mint, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %4, i64 noundef 0)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %12, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = call ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %13) #3
  %15 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %16) #3
  %18 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  br label %19

19:                                               ; preds = %33, %1
  %20 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEES6_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %35

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %23 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  store ptr %23, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %"struct.std::pair", ptr %24, i32 0, i32 0
  %26 = load i32, ptr %25, align 8, !tbaa !9
  %27 = sext i32 %26 to i64
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %10, i64 noundef %27)
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = getelementptr inbounds %"struct.std::pair", ptr %28, i32 0, i32 1
  %30 = call i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %29)
  %31 = getelementptr inbounds %class.mint, ptr %9, i32 0, i32 0
  store i64 %30, ptr %31, align 8
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN4mintpLERKS_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %9)
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %33

33:                                               ; preds = %22
  %34 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  br label %19

35:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %11, i64 noundef 2)
  %36 = call i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %11)
  %37 = getelementptr inbounds %class.mint, ptr %2, i32 0, i32 0
  store i64 %36, ptr %37, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %38 = getelementptr inbounds %class.mint, ptr %2, i32 0, i32 0
  %39 = load i64, ptr %38, align 8
  ret i64 %39
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEdeEv(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 @_ZNSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt4pairIKi4mintE", !11, i64 0, !12, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTS4mint", !13, i64 0}
!13 = !{!"long long", !7, i64 0}


; 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.mint = type { i64 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

; 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 nounwind uwtable
declare dso_local void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN4mintpLERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z4calcRKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE(ptr noundef nonnull align 8 dereferenceable(48) %0) local_unnamed_addr #2 {
  %2 = alloca %class.mint, align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %class.mint, align 8
  %6 = alloca %class.mint, align 8
  %7 = alloca %class.mint, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %2, i64 noundef 0)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %8 = call ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  store ptr %8, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %9 = call ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  store ptr %9, ptr %4, align 8
  %10 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEES6_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #3
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %7, i64 noundef 2)
  %11 = call i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %7)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret i64 %11

.lr.ph:                                           ; preds = %1, %.lr.ph
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %13 = load i32, ptr %12, align 8, !tbaa !5
  %14 = sext i32 %13 to i64
  call void @_ZN4mintC2Ex(ptr noundef nonnull align 8 dereferenceable(8) %6, i64 noundef %14)
  %15 = getelementptr inbounds i8, ptr %12, i64 8
  %16 = call i64 @_ZNK4mintmlERKS_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %15)
  store i64 %16, ptr %5, align 8
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN4mintpLERKS_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %5)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %19 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEES6_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br i1 %19, label %.lr.ph, label %._crit_edge
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3mapIi4mintSt4lessIiESaISt4pairIKiS0_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEdeEv(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 @_ZNSt23_Rb_tree_const_iteratorISt4pairIKi4mintEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { 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, !7, i64 0}
!6 = !{!"_ZTSSt4pairIKi4mintE", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS4mint", !11, i64 0}
!11 = !{!"long long", !8, i64 0}


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