; LLVM IR from upupming/algorithm :: kick-start/2019/RoundC/C.  Catch Some (main)

; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"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 }

@p = external dso_local global [1010 x i32], align 16
@a = external dso_local global [1010 x i32], align 16
@t = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@k = external dso_local global i32, align 4
@c2p = external dso_local global %"class.std::unordered_map", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5solvev() #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @t)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %53, %0
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr @t, align 4, !tbaa !5
  %10 = icmp sle i32 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  store i32 2, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %56

12:                                               ; preds = %7
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 4 dereferenceable(4) @k)
  call void @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(56) @c2p) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 1, ptr %4, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %25, %12
  %16 = load i32, ptr %4, align 4, !tbaa !5
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = icmp sle i32 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  store i32 5, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %28

20:                                               ; preds = %15
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [1010 x i32], ptr @p, i64 0, i64 %22
  %24 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %23)
  br label %25

25:                                               ; preds = %20
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %4, align 4, !tbaa !5
  br label %15, !llvm.loop !9

28:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 1, ptr %5, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %46, %28
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = load i32, ptr @n, align 4, !tbaa !5
  %32 = icmp sle i32 %30, %31
  br i1 %32, label %34, label %33

33:                                               ; preds = %29
  store i32 8, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %49

34:                                               ; preds = %29
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [1010 x i32], ptr @a, i64 0, i64 %36
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %37)
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [1010 x i32], ptr @a, i64 0, i64 %40
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEEixERS8_(ptr noundef nonnull align 8 dereferenceable(56) @c2p, ptr noundef nonnull align 4 dereferenceable(4) %41)
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [1010 x i32], ptr @p, i64 0, i64 %44
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %42, ptr noundef nonnull align 4 dereferenceable(4) %45)
  br label %46

46:                                               ; preds = %34
  %47 = load i32, ptr %5, align 4, !tbaa !5
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %5, align 4, !tbaa !5
  br label %29, !llvm.loop !11

49:                                               ; preds = %33
  %50 = load i32, ptr %2, align 4, !tbaa !5
  %51 = call noundef i32 @_Z5solvev()
  %52 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %50, i32 noundef %51)
  br label %53

53:                                               ; preds = %49
  %54 = load i32, ptr %2, align 4, !tbaa !5
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %2, align 4, !tbaa !5
  br label %7, !llvm.loop !12

56:                                               ; preds = %11
  ret i32 0
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(56)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEEixERS8_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

declare i32 @printf(ptr noundef, ...) #3

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"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 }

@p = external dso_local global [1010 x i32], align 16
@a = external dso_local global [1010 x i32], align 16
@t = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@k = external dso_local global i32, align 4
@c2p = external dso_local global %"class.std::unordered_map", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5solvev() local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @t)
  %2 = load i32, ptr @t, align 4, !tbaa !5
  %.not20 = icmp slt i32 %2, 1
  br i1 %.not20, label %._crit_edge24, label %.lr.ph23

._crit_edge24:                                    ; preds = %._crit_edge, %0
  ret i32 0

.lr.ph23:                                         ; preds = %0, %._crit_edge
  %.01221 = phi i32 [ %12, %._crit_edge ], [ 1, %0 ]
  %3 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) @k)
  tail call void @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(56) @c2p) #5
  %5 = load i32, ptr @n, align 4, !tbaa !5
  %.not1315 = icmp slt i32 %5, 1
  br i1 %.not1315, label %._crit_edge, label %.lr.ph

.preheader:                                       ; preds = %.lr.ph
  %.not1417 = icmp slt i32 %8, 1
  br i1 %.not1417, label %._crit_edge, label %.lr.ph19

.lr.ph:                                           ; preds = %.lr.ph23, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %.lr.ph23 ]
  %6 = getelementptr inbounds [1010 x i32], ptr @p, i64 0, i64 %indvars.iv
  %7 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %8 = load i32, ptr @n, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %.not13.not = icmp slt i64 %indvars.iv, %9
  br i1 %.not13.not, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph19, %.lr.ph23, %.preheader
  %10 = tail call noundef i32 @_Z5solvev()
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %.01221, i32 noundef %10)
  %12 = add nuw nsw i32 %.01221, 1
  %13 = load i32, ptr @t, align 4, !tbaa !5
  %.not.not = icmp slt i32 %.01221, %13
  br i1 %.not.not, label %.lr.ph23, label %._crit_edge24, !llvm.loop !11

.lr.ph19:                                         ; preds = %.preheader, %.lr.ph19
  %indvars.iv26 = phi i64 [ %indvars.iv.next27, %.lr.ph19 ], [ 1, %.preheader ]
  %14 = getelementptr inbounds [1010 x i32], ptr @a, i64 0, i64 %indvars.iv26
  %15 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %16 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEEixERS8_(ptr noundef nonnull align 8 dereferenceable(56) @c2p, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %17 = getelementptr inbounds [1010 x i32], ptr @p, i64 0, i64 %indvars.iv26
  tail call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %16, ptr noundef nonnull align 4 dereferenceable(4) %17)
  %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
  %18 = load i32, ptr @n, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %.not14.not = icmp slt i64 %indvars.iv26, %19
  br i1 %.not14.not, label %.lr.ph19, label %._crit_edge, !llvm.loop !12
}

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 #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt13unordered_mapIiSt6vectorIiSaIiEESt4hashIiESt8equal_toIiESaISt4pairIKiS2_EEEixERS8_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

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 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 #2 = { "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 = { nofree nounwind "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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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