; LLVM IR from upupming/algorithm :: acwing/周赛/week-7/3759. 第k个字符串 (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::__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" }

@f = external dso_local global [100010 x [3 x i64]], 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
@_Z3ansB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; 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 i64, align 8
  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 0, ptr %2, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %33, %0
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = icmp slt i32 %8, 100010
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %36

11:                                               ; preds = %7
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %13
  %15 = getelementptr inbounds [3 x i64], ptr %14, i64 0, i64 0
  store i64 1, ptr %15, align 8, !tbaa !9
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %19
  %21 = getelementptr inbounds [3 x i64], ptr %20, i64 0, i64 1
  store i64 %17, ptr %21, align 8, !tbaa !9
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = sub nsw i64 %25, 1
  %27 = mul nsw i64 %23, %26
  %28 = sdiv i64 %27, 2
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %30
  %32 = getelementptr inbounds [3 x i64], ptr %31, i64 0, i64 2
  store i64 %28, ptr %32, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %11
  %34 = load i32, ptr %2, align 4, !tbaa !5
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %2, align 4, !tbaa !5
  br label %7, !llvm.loop !11

36:                                               ; preds = %10
  br label %37

37:                                               ; preds = %84, %36
  %38 = load i32, ptr @t, align 4, !tbaa !5
  %39 = add nsw i32 %38, -1
  store i32 %39, ptr @t, align 4, !tbaa !5
  %40 = icmp ne i32 %38, 0
  br i1 %40, label %41, label %87

41:                                               ; preds = %37
  %42 = 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)
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %42, ptr noundef nonnull align 4 dereferenceable(4) @k)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  %44 = load i32, ptr @n, align 4, !tbaa !5
  %45 = sub nsw i32 %44, 2
  store i32 %45, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 2, ptr %4, align 4, !tbaa !5
  %46 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, ptr noundef @.str)
  br label %47

47:                                               ; preds = %83, %41
  %48 = load i32, ptr %3, align 4, !tbaa !5
  %49 = icmp sgt i32 %48, 0
  br i1 %49, label %53, label %50

50:                                               ; preds = %47
  %51 = load i32, ptr %4, align 4, !tbaa !5
  %52 = icmp sgt i32 %51, 0
  br label %53

53:                                               ; preds = %50, %47
  %54 = phi i1 [ true, %47 ], [ %52, %50 ]
  br i1 %54, label %55, label %84

55:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %56 = load i32, ptr %3, align 4, !tbaa !5
  %57 = load i32, ptr %4, align 4, !tbaa !5
  %58 = add nsw i32 %56, %57
  %59 = sub nsw i32 %58, 1
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %60
  %62 = load i32, ptr %4, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [3 x i64], ptr %61, i64 0, i64 %63
  %65 = load i64, ptr %64, align 8, !tbaa !9
  store i64 %65, ptr %5, align 8, !tbaa !9
  %66 = load i32, ptr @k, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = load i64, ptr %5, align 8, !tbaa !9
  %69 = icmp sgt i64 %67, %68
  br i1 %69, label %70, label %79

70:                                               ; preds = %55
  %71 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, i8 noundef signext 98)
  %72 = load i32, ptr %4, align 4, !tbaa !5
  %73 = add nsw i32 %72, -1
  store i32 %73, ptr %4, align 4, !tbaa !5
  %74 = load i64, ptr %5, align 8, !tbaa !9
  %75 = load i32, ptr @k, align 4, !tbaa !5
  %76 = sext i32 %75 to i64
  %77 = sub nsw i64 %76, %74
  %78 = trunc i64 %77 to i32
  store i32 %78, ptr @k, align 4, !tbaa !5
  br label %83

79:                                               ; preds = %55
  %80 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, i8 noundef signext 97)
  %81 = load i32, ptr %3, align 4, !tbaa !5
  %82 = add nsw i32 %81, -1
  store i32 %82, ptr %3, align 4, !tbaa !5
  br label %83

83:                                               ; preds = %79, %70
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %47, !llvm.loop !13

84:                                               ; preds = %53
  %85 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11)
  %86 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %85, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %37, !llvm.loop !14

87:                                               ; preds = %37
  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)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 = { 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 #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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !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" }

@f = external dso_local local_unnamed_addr global [100010 x [3 x i64]], 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
@_Z3ansB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %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)
  br label %4

.preheader:                                       ; preds = %4
  %2 = load i32, ptr @t, align 4, !tbaa !5
  %3 = add nsw i32 %2, -1
  store i32 %3, ptr @t, align 4, !tbaa !5
  %.not24 = icmp eq i32 %2, 0
  br i1 %.not24, label %._crit_edge, label %.lr.ph

4:                                                ; preds = %4, %0
  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next.1, %4 ]
  %5 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %indvars.iv
  store i64 1, ptr %5, align 16, !tbaa !9
  %6 = getelementptr inbounds i8, ptr %5, i64 8
  store i64 %indvars.iv, ptr %6, align 8, !tbaa !9
  %7 = add nsw i64 %indvars.iv, -1
  %8 = mul nsw i64 %7, %indvars.iv
  %9 = ashr exact i64 %8, 1
  %10 = getelementptr inbounds i8, ptr %5, i64 16
  store i64 %9, ptr %10, align 16, !tbaa !9
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %11 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %indvars.iv.next
  store i64 1, ptr %11, align 8, !tbaa !9
  %12 = getelementptr inbounds i8, ptr %11, i64 8
  store i64 %indvars.iv.next, ptr %12, align 16, !tbaa !9
  %13 = mul nuw nsw i64 %indvars.iv, %indvars.iv.next
  %14 = lshr exact i64 %13, 1
  %15 = getelementptr inbounds i8, ptr %11, i64 16
  store i64 %14, ptr %15, align 8, !tbaa !9
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %exitcond.not.1 = icmp eq i64 %indvars.iv.next.1, 100010
  br i1 %exitcond.not.1, label %.preheader, label %4, !llvm.loop !11

.lr.ph:                                           ; preds = %.preheader, %44
  %16 = 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)
  %17 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %16, ptr noundef nonnull align 4 dereferenceable(4) @k)
  %18 = load i32, ptr @n, align 4, !tbaa !5
  %19 = add nsw i32 %18, -2
  %20 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, ptr noundef nonnull @.str)
  %.pre26 = load i32, ptr @k, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %.lr.ph, %39
  %22 = phi i32 [ %.pre26, %.lr.ph ], [ %40, %39 ]
  %.01723 = phi i32 [ 2, %.lr.ph ], [ %.1, %39 ]
  %.01822 = phi i32 [ %19, %.lr.ph ], [ %.119, %39 ]
  %23 = add i32 %.01822, -1
  %24 = add i32 %23, %.01723
  %25 = sext i32 %24 to i64
  %26 = sext i32 %.01723 to i64
  %27 = getelementptr inbounds [100010 x [3 x i64]], ptr @f, i64 0, i64 %25, i64 %26
  %28 = load i64, ptr %27, align 8, !tbaa !9
  %29 = sext i32 %22 to i64
  %30 = icmp slt i64 %28, %29
  br i1 %30, label %31, label %37

31:                                               ; preds = %21
  %32 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, i8 noundef signext 98)
  %33 = add nsw i32 %.01723, -1
  %34 = load i32, ptr @k, align 4, !tbaa !5
  %35 = trunc i64 %28 to i32
  %36 = sub i32 %34, %35
  store i32 %36, ptr @k, align 4, !tbaa !5
  br label %39

37:                                               ; preds = %21
  %38 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11, i8 noundef signext 97)
  %.pre = load i32, ptr @k, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %37, %31
  %40 = phi i32 [ %36, %31 ], [ %.pre, %37 ]
  %.119 = phi i32 [ %.01822, %31 ], [ %23, %37 ]
  %.1 = phi i32 [ %33, %31 ], [ %.01723, %37 ]
  %41 = icmp sgt i32 %.119, 0
  %42 = icmp sgt i32 %.1, 0
  %43 = select i1 %41, i1 true, i1 %42
  br i1 %43, label %21, label %44, !llvm.loop !13

44:                                               ; preds = %39
  %45 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) @_Z3ansB5cxx11)
  %46 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %45, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %47 = load i32, ptr @t, align 4, !tbaa !5
  %48 = add nsw i32 %47, -1
  store i32 %48, ptr @t, align 4, !tbaa !5
  %.not = icmp eq i32 %47, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !14

._crit_edge:                                      ; preds = %44, %.preheader
  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)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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" }

!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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


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