; LLVM IR from eyangch/competitive-programming :: Codeforces/1391 (d)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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" }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@dp = external dso_local global [1000000 x [8 x i32]], align 16
@x = external dso_local global [1000000 x i32], align 16
@_Z1sB5cxx11 = external dso_local global [3 x %"class.std::__cxx11::basic_string"], align 16
@_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 uwtable
declare dso_local noundef i32 @_Z3dpfii(i32 noundef, i32 noundef) #0

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

; 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)) #2

; 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() #3 {
  %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
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %8 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %9 = getelementptr i8, ptr %8, i64 -24
  %10 = load i64, ptr %9, align 8
  %11 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %10
  %12 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %11, ptr noundef null)
  %13 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %14 = 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)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %16 = load i32, ptr @N, align 4, !tbaa !8
  %17 = icmp sgt i32 %16, 3
  br i1 %17, label %18, label %21

18:                                               ; preds = %0
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %19, ptr noundef @.str)
  store i32 0, ptr %1, align 4
  br label %106

21:                                               ; preds = %0
  %22 = load i32, ptr @N, align 4, !tbaa !8
  %23 = icmp eq i32 %22, 1
  br i1 %23, label %24, label %27

24:                                               ; preds = %21
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 0)
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef @.str)
  store i32 0, ptr %1, align 4
  br label %106

27:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !8
  br label %28

28:                                               ; preds = %38, %27
  %29 = load i32, ptr %2, align 4, !tbaa !8
  %30 = load i32, ptr @N, align 4, !tbaa !8
  %31 = icmp slt i32 %29, %30
  br i1 %31, label %33, label %32

32:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %41

33:                                               ; preds = %28
  %34 = load i32, ptr %2, align 4, !tbaa !8
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr @_Z1sB5cxx11, i64 0, i64 %35
  %37 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %36)
  br label %38

38:                                               ; preds = %33
  %39 = load i32, ptr %2, align 4, !tbaa !8
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %2, align 4, !tbaa !8
  br label %28, !llvm.loop !11

41:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 0, ptr %3, align 4, !tbaa !8
  br label %42

42:                                               ; preds = %81, %41
  %43 = load i32, ptr %3, align 4, !tbaa !8
  %44 = load i32, ptr @M, align 4, !tbaa !8
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %47, label %46

46:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %84

47:                                               ; preds = %42
  %48 = load i32, ptr %3, align 4, !tbaa !8
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %49)
  %51 = load i8, ptr %50, align 1, !tbaa !13
  %52 = sext i8 %51 to i32
  %53 = sub nsw i32 %52, 48
  %54 = load i32, ptr %3, align 4, !tbaa !8
  %55 = sext i32 %54 to i64
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds ([3 x %"class.std::__cxx11::basic_string"], ptr @_Z1sB5cxx11, i64 0, i64 1), i64 noundef %55)
  %57 = load i8, ptr %56, align 1, !tbaa !13
  %58 = sext i8 %57 to i32
  %59 = sub nsw i32 %58, 48
  %60 = mul nsw i32 2, %59
  %61 = add nsw i32 %53, %60
  %62 = load i32, ptr %3, align 4, !tbaa !8
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [1000000 x i32], ptr @x, i64 0, i64 %63
  store i32 %61, ptr %64, align 4, !tbaa !8
  %65 = load i32, ptr @N, align 4, !tbaa !8
  %66 = icmp eq i32 %65, 3
  br i1 %66, label %67, label %80

67:                                               ; preds = %47
  %68 = load i32, ptr %3, align 4, !tbaa !8
  %69 = sext i32 %68 to i64
  %70 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds ([3 x %"class.std::__cxx11::basic_string"], ptr @_Z1sB5cxx11, i64 0, i64 2), i64 noundef %69)
  %71 = load i8, ptr %70, align 1, !tbaa !13
  %72 = sext i8 %71 to i32
  %73 = sub nsw i32 %72, 48
  %74 = mul nsw i32 4, %73
  %75 = load i32, ptr %3, align 4, !tbaa !8
  %76 = sext i32 %75 to i64
  %77 = getelementptr inbounds [1000000 x i32], ptr @x, i64 0, i64 %76
  %78 = load i32, ptr %77, align 4, !tbaa !8
  %79 = add nsw i32 %78, %74
  store i32 %79, ptr %77, align 4, !tbaa !8
  br label %80

80:                                               ; preds = %67, %47
  br label %81

81:                                               ; preds = %80
  %82 = load i32, ptr %3, align 4, !tbaa !8
  %83 = add nsw i32 %82, 1
  store i32 %83, ptr %3, align 4, !tbaa !8
  br label %42, !llvm.loop !14

84:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  store i32 -1, ptr %4, align 4, !tbaa !8
  %85 = call noundef ptr @_ZSt6fill_nIPiiiET_S1_T0_RKT1_(ptr noundef @dp, i32 noundef 8000000, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 1000000000, ptr %5, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %86

86:                                               ; preds = %99, %84
  %87 = load i32, ptr %6, align 4, !tbaa !8
  %88 = load i32, ptr @N, align 4, !tbaa !8
  %89 = shl i32 1, %88
  %90 = icmp slt i32 %87, %89
  br i1 %90, label %92, label %91

91:                                               ; preds = %86
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %102

92:                                               ; preds = %86
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  %93 = load i32, ptr @M, align 4, !tbaa !8
  %94 = sub nsw i32 %93, 1
  %95 = load i32, ptr %6, align 4, !tbaa !8
  %96 = call noundef i32 @_Z3dpfii(i32 noundef %94, i32 noundef %95)
  store i32 %96, ptr %7, align 4, !tbaa !8
  %97 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %98 = load i32, ptr %97, align 4, !tbaa !8
  store i32 %98, ptr %5, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %99

99:                                               ; preds = %92
  %100 = load i32, ptr %6, align 4, !tbaa !8
  %101 = add nsw i32 %100, 1
  store i32 %101, ptr %6, align 4, !tbaa !8
  br label %86, !llvm.loop !15

102:                                              ; preds = %91
  %103 = load i32, ptr %5, align 4, !tbaa !8
  %104 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %103)
  %105 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %104, ptr noundef @.str)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %106

106:                                              ; preds = %102, %24, %18
  %107 = load i32, ptr %1, align 4
  ret i32 %107
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #4 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #5

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #5

; 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) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #5

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZSt6fill_nIPiiiET_S1_T0_RKT1_(ptr noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) #6

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 = { 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 #3 = { 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 #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 = { "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 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 = !{!10, !10, i64 0}
!14 = distinct !{!14, !12}
!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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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" }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@dp = external dso_local global [1000000 x [8 x i32]], align 16
@x = external dso_local local_unnamed_addr global [1000000 x i32], align 16
@_Z1sB5cxx11 = external dso_local global [3 x %"class.std::__cxx11::basic_string"], align 16
@_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 uwtable
declare dso_local noundef i32 @_Z3dpfii(i32 noundef, i32 noundef) local_unnamed_addr #0

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

; 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 #2

; Function Attrs: mustprogress 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() local_unnamed_addr #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %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)
  %9 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %10 = 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)
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %12 = load i32, ptr @N, align 4, !tbaa !8
  %13 = icmp sgt i32 %12, 3
  br i1 %13, label %14, label %17

14:                                               ; preds = %0
  %15 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  %16 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull @.str)
  br label %68

17:                                               ; preds = %0
  %18 = icmp eq i32 %12, 1
  br i1 %18, label %20, label %.preheader18

.preheader18:                                     ; preds = %17
  %19 = icmp sgt i32 %12, 0
  br i1 %19, label %.lr.ph, label %.preheader

20:                                               ; preds = %17
  %21 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 0)
  %22 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef nonnull @.str)
  br label %68

.preheader:                                       ; preds = %.lr.ph, %.preheader18
  %23 = load i32, ptr @M, align 4, !tbaa !8
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %.lr.ph21, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader18, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader18 ]
  %25 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr @_Z1sB5cxx11, i64 0, i64 %indvars.iv
  %26 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %25)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %27 = load i32, ptr @N, align 4, !tbaa !8
  %28 = sext i32 %27 to i64
  %29 = icmp slt i64 %indvars.iv.next, %28
  br i1 %29, label %.lr.ph, label %.preheader, !llvm.loop !11

._crit_edge:                                      ; preds = %52, %.preheader
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  store i32 -1, ptr %1, align 4, !tbaa !8
  %30 = call noundef ptr @_ZSt6fill_nIPiiiET_S1_T0_RKT1_(ptr noundef nonnull @dp, i32 noundef 8000000, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  store i32 1000000000, ptr %2, align 4, !tbaa !8
  %31 = load i32, ptr @N, align 4, !tbaa !8
  %.not = icmp eq i32 %31, 31
  br i1 %.not, label %._crit_edge25, label %.lr.ph24

.lr.ph21:                                         ; preds = %.preheader, %52
  %indvars.iv27 = phi i64 [ %indvars.iv.next28, %52 ], [ 0, %.preheader ]
  %32 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %indvars.iv27)
  %33 = load i8, ptr %32, align 1, !tbaa !13
  %34 = sext i8 %33 to i32
  %35 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_Z1sB5cxx11, i64 32), i64 noundef %indvars.iv27)
  %36 = load i8, ptr %35, align 1, !tbaa !13
  %37 = sext i8 %36 to i32
  %38 = shl nsw i32 %37, 1
  %39 = add nsw i32 %34, -144
  %40 = add nsw i32 %39, %38
  %41 = getelementptr inbounds [1000000 x i32], ptr @x, i64 0, i64 %indvars.iv27
  store i32 %40, ptr %41, align 4, !tbaa !8
  %42 = load i32, ptr @N, align 4, !tbaa !8
  %43 = icmp eq i32 %42, 3
  br i1 %43, label %44, label %52

44:                                               ; preds = %.lr.ph21
  %45 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_Z1sB5cxx11, i64 64), i64 noundef %indvars.iv27)
  %46 = load i8, ptr %45, align 1, !tbaa !13
  %47 = sext i8 %46 to i32
  %48 = shl nsw i32 %47, 2
  %49 = load i32, ptr %41, align 4, !tbaa !8
  %50 = add i32 %49, -192
  %51 = add i32 %50, %48
  store i32 %51, ptr %41, align 4, !tbaa !8
  br label %52

52:                                               ; preds = %.lr.ph21, %44
  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1
  %53 = load i32, ptr @M, align 4, !tbaa !8
  %54 = sext i32 %53 to i64
  %55 = icmp slt i64 %indvars.iv.next28, %54
  br i1 %55, label %.lr.ph21, label %._crit_edge, !llvm.loop !14

._crit_edge25:                                    ; preds = %.lr.ph24, %._crit_edge
  %56 = phi i32 [ 1000000000, %._crit_edge ], [ %63, %.lr.ph24 ]
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %56)
  %58 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %57, ptr noundef nonnull @.str)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  br label %68

.lr.ph24:                                         ; preds = %._crit_edge, %.lr.ph24
  %.022 = phi i32 [ %64, %.lr.ph24 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  %59 = load i32, ptr @M, align 4, !tbaa !8
  %60 = add nsw i32 %59, -1
  %61 = call noundef i32 @_Z3dpfii(i32 noundef %60, i32 noundef %.022)
  store i32 %61, ptr %3, align 4, !tbaa !8
  %62 = 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) %3)
  %63 = load i32, ptr %62, align 4, !tbaa !8
  store i32 %63, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  %64 = add nuw nsw i32 %.022, 1
  %65 = load i32, ptr @N, align 4, !tbaa !8
  %66 = shl nuw i32 1, %65
  %67 = icmp slt i32 %64, %66
  br i1 %67, label %.lr.ph24, label %._crit_edge25, !llvm.loop !15

68:                                               ; preds = %._crit_edge25, %20, %14
  ret i32 0
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #4 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #5

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 #5

; 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 #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZSt6fill_nIPiiiET_S1_T0_RKT1_(ptr noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #6

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #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 = { "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 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 = !{!10, !10, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


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