; LLVM IR from abeaumont/competitive-programming :: cses (2136)

; 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" }
%"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] }

@xs = external dso_local global [20000 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %14 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %15 = getelementptr i8, ptr %14, i64 -24
  %16 = load i64, ptr %15, align 8
  %17 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %16
  %18 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %17, ptr noundef null)
  %19 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %20 = 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)
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %20, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !8
  br label %22

22:                                               ; preds = %64, %0
  %23 = load i32, ptr %5, align 4, !tbaa !8
  %24 = load i32, ptr %2, align 4, !tbaa !8
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %68

27:                                               ; preds = %22
  %28 = invoke 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) %4)
          to label %29 unwind label %35

29:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 0, ptr %9, align 4, !tbaa !8
  br label %30

30:                                               ; preds = %56, %29
  %31 = load i32, ptr %9, align 4, !tbaa !8
  %32 = load i32, ptr %3, align 4, !tbaa !8
  %33 = icmp slt i32 %31, %32
  br i1 %33, label %39, label %34

34:                                               ; preds = %30
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %63

35:                                               ; preds = %27
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %7, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %8, align 4
  br label %67

39:                                               ; preds = %30
  %40 = load i32, ptr %5, align 4, !tbaa !8
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !8
  %44 = shl i32 %43, 1
  %45 = load i32, ptr %9, align 4, !tbaa !8
  %46 = sext i32 %45 to i64
  %47 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %46)
          to label %48 unwind label %59

48:                                               ; preds = %39
  %49 = load i8, ptr %47, align 1, !tbaa !11
  %50 = sext i8 %49 to i32
  %51 = add nsw i32 %44, %50
  %52 = sub nsw i32 %51, 48
  %53 = load i32, ptr %5, align 4, !tbaa !8
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %54
  store i32 %52, ptr %55, align 4, !tbaa !8
  br label %56

56:                                               ; preds = %48
  %57 = load i32, ptr %9, align 4, !tbaa !8
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %9, align 4, !tbaa !8
  br label %30, !llvm.loop !12

59:                                               ; preds = %39
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %7, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %67

63:                                               ; preds = %34
  br label %64

64:                                               ; preds = %63
  %65 = load i32, ptr %5, align 4, !tbaa !8
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %5, align 4, !tbaa !8
  br label %22, !llvm.loop !14

67:                                               ; preds = %59, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %121

68:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  %69 = load i32, ptr %3, align 4, !tbaa !8
  %70 = add nsw i32 %69, 1
  store i32 %70, ptr %10, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  store i32 0, ptr %11, align 4, !tbaa !8
  br label %71

71:                                               ; preds = %106, %68
  %72 = load i32, ptr %11, align 4, !tbaa !8
  %73 = load i32, ptr %2, align 4, !tbaa !8
  %74 = icmp slt i32 %72, %73
  br i1 %74, label %76, label %75

75:                                               ; preds = %71
  store i32 8, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %109

76:                                               ; preds = %71
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %77 = load i32, ptr %11, align 4, !tbaa !8
  %78 = add nsw i32 %77, 1
  store i32 %78, ptr %12, align 4, !tbaa !8
  br label %79

79:                                               ; preds = %98, %76
  %80 = load i32, ptr %12, align 4, !tbaa !8
  %81 = load i32, ptr %2, align 4, !tbaa !8
  %82 = icmp slt i32 %80, %81
  br i1 %82, label %84, label %83

83:                                               ; preds = %79
  store i32 11, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %105

84:                                               ; preds = %79
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  %85 = load i32, ptr %11, align 4, !tbaa !8
  %86 = sext i32 %85 to i64
  %87 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %86
  %88 = load i32, ptr %87, align 4, !tbaa !8
  %89 = load i32, ptr %12, align 4, !tbaa !8
  %90 = sext i32 %89 to i64
  %91 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %90
  %92 = load i32, ptr %91, align 4, !tbaa !8
  %93 = xor i32 %88, %92
  %94 = call i32 @llvm.ctpop.i32(i32 %93)
  store i32 %94, ptr %13, align 4, !tbaa !8
  %95 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %96 unwind label %101

96:                                               ; preds = %84
  %97 = load i32, ptr %95, align 4, !tbaa !8
  store i32 %97, ptr %10, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %98

98:                                               ; preds = %96
  %99 = load i32, ptr %12, align 4, !tbaa !8
  %100 = add nsw i32 %99, 1
  store i32 %100, ptr %12, align 4, !tbaa !8
  br label %79, !llvm.loop !15

101:                                              ; preds = %84
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %7, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %120

105:                                              ; preds = %83
  br label %106

106:                                              ; preds = %105
  %107 = load i32, ptr %11, align 4, !tbaa !8
  %108 = add nsw i32 %107, 1
  store i32 %108, ptr %11, align 4, !tbaa !8
  br label %71, !llvm.loop !16

109:                                              ; preds = %75
  %110 = load i32, ptr %10, align 4, !tbaa !8
  %111 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %110)
          to label %112 unwind label %116

112:                                              ; preds = %109
  %113 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %111, i8 noundef signext 10)
          to label %114 unwind label %116

114:                                              ; preds = %112
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %115 = load i32, ptr %1, align 4
  ret i32 %115

116:                                              ; preds = %112, %109
  %117 = landingpad { ptr, i32 }
          cleanup
  %118 = extractvalue { ptr, i32 } %117, 0
  store ptr %118, ptr %7, align 8
  %119 = extractvalue { ptr, i32 } %117, 1
  store i32 %119, ptr %8, align 4
  br label %120

120:                                              ; preds = %116, %101
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %121

121:                                              ; preds = %120, %67
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %122

122:                                              ; preds = %121
  %123 = load ptr, ptr %7, align 8
  %124 = load i32, ptr %8, align 4
  %125 = insertvalue { ptr, i32 } poison, ptr %123, 0
  %126 = insertvalue { ptr, i32 } %125, i32 %124, 1
  resume { ptr, i32 } %126
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

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: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

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)) #2

declare i32 @__gxx_personality_v0(...)

; 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) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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)) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.ctpop.i32(i32) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #6

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

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 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}
!16 = distinct !{!16, !13}


; 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" }
%"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] }

@xs = external dso_local local_unnamed_addr global [20000 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %7 = getelementptr i8, ptr %6, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %8
  %10 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %9, ptr noundef null)
  %11 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %12 = 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)
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  %14 = load i32, ptr %1, align 4, !tbaa !8
  %15 = icmp sgt i32 %14, 0
  br i1 %15, label %.lr.ph25, label %._crit_edge26.thread

._crit_edge26.thread:                             ; preds = %0
  %.pre46 = load i32, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %16 = add nsw i32 %.pre46, 1
  store i32 %16, ptr %4, align 4, !tbaa !8
  br label %._crit_edge33

._crit_edge26:                                    ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %17 = add nsw i32 %23, 1
  store i32 %17, ptr %4, align 4, !tbaa !8
  %18 = icmp sgt i32 %24, 0
  br i1 %18, label %.lr.ph32, label %._crit_edge33

.lr.ph25:                                         ; preds = %0, %._crit_edge
  %indvars.iv35 = phi i64 [ %indvars.iv.next36, %._crit_edge ], [ 0, %0 ]
  %19 = invoke 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) %3)
          to label %.preheader unwind label %27

.preheader:                                       ; preds = %.lr.ph25
  %20 = load i32, ptr %2, align 4, !tbaa !8
  %21 = icmp sgt i32 %20, 0
  br i1 %21, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %22 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %indvars.iv35
  %.pre = load i32, ptr %22, align 4, !tbaa !8
  br label %29

._crit_edge:                                      ; preds = %29, %.preheader
  %23 = phi i32 [ %20, %.preheader ], [ %37, %29 ]
  %indvars.iv.next36 = add nuw nsw i64 %indvars.iv35, 1
  %24 = load i32, ptr %1, align 4, !tbaa !8
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next36, %25
  br i1 %26, label %.lr.ph25, label %._crit_edge26, !llvm.loop !11

27:                                               ; preds = %.lr.ph25
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %66

29:                                               ; preds = %.lr.ph, %29
  %30 = phi i32 [ %.pre, %.lr.ph ], [ %36, %29 ]
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %29 ]
  %31 = shl i32 %30, 1
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %indvars.iv)
  %33 = load i8, ptr %32, align 1, !tbaa !13
  %34 = sext i8 %33 to i32
  %35 = add i32 %31, -48
  %36 = add i32 %35, %34
  store i32 %36, ptr %22, align 4, !tbaa !8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %37 = load i32, ptr %2, align 4, !tbaa !8
  %38 = sext i32 %37 to i64
  %39 = icmp slt i64 %indvars.iv.next, %38
  br i1 %39, label %29, label %._crit_edge, !llvm.loop !14

.loopexit.loopexit:                               ; preds = %50
  %.pre47 = sext i32 %58 to i64
  br label %.loopexit

.loopexit:                                        ; preds = %.loopexit.loopexit, %.lr.ph32
  %.pre-phi = phi i64 [ %.pre47, %.loopexit.loopexit ], [ %47, %.lr.ph32 ]
  %40 = phi i32 [ %57, %.loopexit.loopexit ], [ %45, %.lr.ph32 ]
  %41 = phi i32 [ %58, %.loopexit.loopexit ], [ %46, %.lr.ph32 ]
  %42 = icmp slt i64 %indvars.iv.next44, %.pre-phi
  %indvars.iv.next39 = add nuw nsw i64 %indvars.iv38, 1
  br i1 %42, label %.lr.ph32, label %._crit_edge33, !llvm.loop !15

._crit_edge33:                                    ; preds = %.loopexit, %._crit_edge26.thread, %._crit_edge26
  %43 = phi i32 [ %17, %._crit_edge26 ], [ %16, %._crit_edge26.thread ], [ %40, %.loopexit ]
  %44 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %43)
          to label %61 unwind label %64

.lr.ph32:                                         ; preds = %._crit_edge26, %.loopexit
  %45 = phi i32 [ %40, %.loopexit ], [ %17, %._crit_edge26 ]
  %46 = phi i32 [ %41, %.loopexit ], [ %24, %._crit_edge26 ]
  %indvars.iv43 = phi i64 [ %indvars.iv.next44, %.loopexit ], [ 0, %._crit_edge26 ]
  %indvars.iv38 = phi i64 [ %indvars.iv.next39, %.loopexit ], [ 1, %._crit_edge26 ]
  %indvars.iv.next44 = add nuw nsw i64 %indvars.iv43, 1
  %47 = sext i32 %46 to i64
  %48 = icmp slt i64 %indvars.iv.next44, %47
  br i1 %48, label %.lr.ph29, label %.loopexit

.lr.ph29:                                         ; preds = %.lr.ph32
  %49 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %indvars.iv43
  br label %50

50:                                               ; preds = %.lr.ph29, %50
  %indvars.iv40 = phi i64 [ %indvars.iv38, %.lr.ph29 ], [ %indvars.iv.next41, %50 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  %51 = load i32, ptr %49, align 4, !tbaa !8
  %52 = getelementptr inbounds [20000 x i32], ptr @xs, i64 0, i64 %indvars.iv40
  %53 = load i32, ptr %52, align 4, !tbaa !8
  %54 = xor i32 %53, %51
  %55 = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 %54)
  store i32 %55, ptr %5, align 4, !tbaa !8
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %57 = load i32, ptr %56, align 4, !tbaa !8
  store i32 %57, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  %indvars.iv.next41 = add nuw nsw i64 %indvars.iv40, 1
  %58 = load i32, ptr %1, align 4, !tbaa !8
  %59 = trunc nuw i64 %indvars.iv.next41 to i32
  %60 = icmp sgt i32 %58, %59
  br i1 %60, label %50, label %.loopexit.loopexit, !llvm.loop !16

61:                                               ; preds = %._crit_edge33
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %44, i8 noundef signext 10)
          to label %63 unwind label %64

63:                                               ; preds = %61
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

64:                                               ; preds = %61, %._crit_edge33
  %65 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  br label %66

66:                                               ; preds = %64, %27
  %.pn = phi { ptr, i32 } [ %28, %27 ], [ %65, %64 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

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 #2

declare i32 @__gxx_personality_v0(...)

; 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 #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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 #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.ctpop.i32(i32) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) 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 #2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

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 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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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}
!16 = distinct !{!16, !12}


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