; LLVM IR from Izaron/ACM-ICPC :: Timus Online Judge/Volume 4/1349. Farm (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::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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; 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 i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  %7 = 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)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %70, %0
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = icmp sle i32 %9, 100
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  store i32 2, ptr %4, align 4
  br label %73

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = add nsw i32 %13, 1
  store i32 %14, ptr %5, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %64, %12
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = icmp sle i32 %16, 100
  br i1 %17, label %19, label %18

18:                                               ; preds = %15
  store i32 5, ptr %4, align 4
  br label %67

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %58, %19
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = icmp sle i32 %21, 100
  br i1 %22, label %24, label %23

23:                                               ; preds = %20
  store i32 8, ptr %4, align 4
  br label %61

24:                                               ; preds = %20
  %25 = load i32, ptr %6, align 4, !tbaa !5
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = icmp eq i32 %25, %26
  br i1 %27, label %32, label %28

28:                                               ; preds = %24
  %29 = load i32, ptr %6, align 4, !tbaa !5
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = icmp eq i32 %29, %30
  br i1 %31, label %32, label %33

32:                                               ; preds = %28, %24
  br label %58

33:                                               ; preds = %28
  %34 = load i32, ptr %3, align 4, !tbaa !5
  %35 = sitofp i32 %34 to x86_fp80
  %36 = load i32, ptr %2, align 4, !tbaa !5
  %37 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %35, i32 noundef %36)
  %38 = load i32, ptr %5, align 4, !tbaa !5
  %39 = sitofp i32 %38 to x86_fp80
  %40 = load i32, ptr %2, align 4, !tbaa !5
  %41 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %39, i32 noundef %40)
  %42 = fadd x86_fp80 %37, %41
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = sitofp i32 %43 to x86_fp80
  %45 = load i32, ptr %2, align 4, !tbaa !5
  %46 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %44, i32 noundef %45)
  %47 = fcmp oeq x86_fp80 %42, %46
  br i1 %47, label %48, label %57

48:                                               ; preds = %33
  %49 = load i32, ptr %3, align 4, !tbaa !5
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %49)
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %50, ptr noundef @.str)
  %52 = load i32, ptr %5, align 4, !tbaa !5
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %51, i32 noundef %52)
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %53, ptr noundef @.str)
  %55 = load i32, ptr %6, align 4, !tbaa !5
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %54, i32 noundef %55)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %61

57:                                               ; preds = %33
  br label %58

58:                                               ; preds = %57, %32
  %59 = load i32, ptr %6, align 4, !tbaa !5
  %60 = add nsw i32 %59, 1
  store i32 %60, ptr %6, align 4, !tbaa !5
  br label %20, !llvm.loop !9

61:                                               ; preds = %48, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %62 = load i32, ptr %4, align 4
  switch i32 %62, label %67 [
    i32 8, label %63
  ]

63:                                               ; preds = %61
  br label %64

64:                                               ; preds = %63
  %65 = load i32, ptr %5, align 4, !tbaa !5
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %5, align 4, !tbaa !5
  br label %15, !llvm.loop !11

67:                                               ; preds = %61, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  %68 = load i32, ptr %4, align 4
  switch i32 %68, label %73 [
    i32 5, label %69
  ]

69:                                               ; preds = %67
  br label %70

70:                                               ; preds = %69
  %71 = load i32, ptr %3, align 4, !tbaa !5
  %72 = add nsw i32 %71, 1
  store i32 %72, ptr %3, align 4, !tbaa !5
  br label %8, !llvm.loop !12

73:                                               ; preds = %67, %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  %74 = load i32, ptr %4, align 4
  switch i32 %74, label %77 [
    i32 2, label %75
  ]

75:                                               ; preds = %73
  %76 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  store i32 0, ptr %4, align 4
  br label %77

77:                                               ; preds = %75, %73
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  %78 = load i32, ptr %4, align 4
  switch i32 %78, label %81 [
    i32 0, label %79
    i32 1, label %79
  ]

79:                                               ; preds = %77, %77
  %80 = load i32, ptr %1, align 4
  ret i32 %80

81:                                               ; preds = %77
  unreachable
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef, i32 noundef) #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = 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::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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %2 = 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)
  br label %3

3:                                                ; preds = %0, %.critedge30
  %.02537 = phi i32 [ 1, %0 ], [ %4, %.critedge30 ]
  %4 = add nuw nsw i32 %.02537, 1
  %5 = icmp ugt i32 %.02537, 99
  br i1 %5, label %.critedge30, label %.preheader.lr.ph

.preheader.lr.ph:                                 ; preds = %3
  %6 = uitofp nneg i32 %.02537 to x86_fp80
  br label %.preheader

.preheader:                                       ; preds = %.preheader.lr.ph, %.critedge
  %.02336 = phi i32 [ %4, %.preheader.lr.ph ], [ %23, %.critedge ]
  %7 = uitofp nneg i32 %.02336 to x86_fp80
  br label %8

8:                                                ; preds = %.preheader, %21
  %.035 = phi i32 [ 0, %.preheader ], [ %22, %21 ]
  %9 = icmp eq i32 %.035, %.02537
  %10 = icmp eq i32 %.035, %.02336
  %or.cond = or i1 %9, %10
  br i1 %or.cond, label %21, label %11

11:                                               ; preds = %8
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %6, i32 noundef %12)
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %7, i32 noundef %14)
  %16 = fadd x86_fp80 %13, %15
  %17 = uitofp nneg i32 %.035 to x86_fp80
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = call noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef %17, i32 noundef %18)
  %20 = fcmp oeq x86_fp80 %16, %19
  br i1 %20, label %.loopexit, label %21

21:                                               ; preds = %11, %8
  %22 = add nuw nsw i32 %.035, 1
  %exitcond = icmp eq i32 %22, 101
  br i1 %exitcond, label %.critedge, label %8, !llvm.loop !9

.critedge:                                        ; preds = %21
  %23 = add nuw nsw i32 %.02336, 1
  %exitcond41 = icmp eq i32 %23, 101
  br i1 %exitcond41, label %.critedge30, label %.preheader, !llvm.loop !11

.loopexit:                                        ; preds = %11
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.02537)
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %24, ptr noundef nonnull @.str)
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %25, i32 noundef %.02336)
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull @.str)
  %28 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %27, i32 noundef %.035)
  br label %30

.critedge30:                                      ; preds = %.critedge, %3
  %exitcond42 = icmp eq i32 %4, 101
  br i1 %exitcond42, label %.critedge32, label %3, !llvm.loop !12

.critedge32:                                      ; preds = %.critedge30
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  br label %30

30:                                               ; preds = %.loopexit, %.critedge32
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0
}

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

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: inlinehint mustprogress uwtable
declare dso_local noundef x86_fp80 @_ZSt3powIeiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(x86_fp80 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

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

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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