; LLVM IR from upupming/algorithm :: upupming (1031)

; 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
@n1 = external dso_local global i32, align 4
@n2 = external dso_local global i32, align 4
@_Z3strB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_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
  store i32 0, ptr %1, align 4
  %6 = 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) @_Z3strB5cxx11)
  %7 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11) #6
  %8 = trunc i64 %7 to i32
  store i32 %8, ptr @n, align 4, !tbaa !5
  %9 = load i32, ptr @n, align 4, !tbaa !5
  %10 = sdiv i32 %9, 2
  store i32 %10, ptr @n1, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %32, %0
  %12 = load i32, ptr @n1, align 4, !tbaa !5
  %13 = icmp sge i32 %12, 0
  br i1 %13, label %14, label %35

14:                                               ; preds = %11
  %15 = load i32, ptr @n, align 4, !tbaa !5
  %16 = add nsw i32 %15, 2
  %17 = load i32, ptr @n1, align 4, !tbaa !5
  %18 = mul nsw i32 2, %17
  %19 = sub nsw i32 %16, %18
  store i32 %19, ptr @n2, align 4, !tbaa !5
  %20 = load i32, ptr @n1, align 4, !tbaa !5
  %21 = load i32, ptr @n2, align 4, !tbaa !5
  %22 = icmp sle i32 %20, %21
  br i1 %22, label %23, label %31

23:                                               ; preds = %14
  %24 = load i32, ptr @n2, align 4, !tbaa !5
  %25 = icmp sge i32 %24, 3
  br i1 %25, label %26, label %31

26:                                               ; preds = %23
  %27 = load i32, ptr @n2, align 4, !tbaa !5
  %28 = load i32, ptr @n, align 4, !tbaa !5
  %29 = icmp sle i32 %27, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %26
  br label %35

31:                                               ; preds = %26, %23, %14
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr @n1, align 4, !tbaa !5
  %34 = add nsw i32 %33, -1
  store i32 %34, ptr @n1, align 4, !tbaa !5
  br label %11, !llvm.loop !9

35:                                               ; preds = %30, %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %36

36:                                               ; preds = %69, %35
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = load i32, ptr @n1, align 4, !tbaa !5
  %39 = sub nsw i32 %38, 1
  %40 = icmp slt i32 %37, %39
  br i1 %40, label %42, label %41

41:                                               ; preds = %36
  store i32 5, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %72

42:                                               ; preds = %36
  %43 = load i32, ptr %2, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %44)
  %46 = load i8, ptr %45, align 1, !tbaa !11
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %46)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %48

48:                                               ; preds = %56, %42
  %49 = load i32, ptr %4, align 4, !tbaa !5
  %50 = load i32, ptr @n2, align 4, !tbaa !5
  %51 = sub nsw i32 %50, 2
  %52 = icmp slt i32 %49, %51
  br i1 %52, label %54, label %53

53:                                               ; preds = %48
  store i32 8, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  br label %59

54:                                               ; preds = %48
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %56

56:                                               ; preds = %54
  %57 = load i32, ptr %4, align 4, !tbaa !5
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %4, align 4, !tbaa !5
  br label %48, !llvm.loop !12

59:                                               ; preds = %53
  %60 = load i32, ptr @n, align 4, !tbaa !5
  %61 = sub nsw i32 %60, 1
  %62 = load i32, ptr %2, align 4, !tbaa !5
  %63 = sub nsw i32 %61, %62
  %64 = sext i32 %63 to i64
  %65 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %64)
  %66 = load i8, ptr %65, align 1, !tbaa !11
  %67 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %66)
  %68 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %67, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %69

69:                                               ; preds = %59
  %70 = load i32, ptr %2, align 4, !tbaa !5
  %71 = add nsw i32 %70, 1
  store i32 %71, ptr %2, align 4, !tbaa !5
  br label %36, !llvm.loop !13

72:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %73

73:                                               ; preds = %87, %72
  %74 = load i32, ptr %5, align 4, !tbaa !5
  %75 = load i32, ptr @n2, align 4, !tbaa !5
  %76 = icmp slt i32 %74, %75
  br i1 %76, label %78, label %77

77:                                               ; preds = %73
  store i32 11, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %90

78:                                               ; preds = %73
  %79 = load i32, ptr @n1, align 4, !tbaa !5
  %80 = sub nsw i32 %79, 1
  %81 = load i32, ptr %5, align 4, !tbaa !5
  %82 = add nsw i32 %80, %81
  %83 = sext i32 %82 to i64
  %84 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %83)
  %85 = load i8, ptr %84, align 1, !tbaa !11
  %86 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %85)
  br label %87

87:                                               ; preds = %78
  %88 = load i32, ptr %5, align 4, !tbaa !5
  %89 = add nsw i32 %88, 1
  store i32 %89, ptr %5, align 4, !tbaa !5
  br label %73, !llvm.loop !14

90:                                               ; preds = %77
  ret i32 0
}

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)) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

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

; 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) #4

; 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) #2 align 2

; 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) #4

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5 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 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { 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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !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::__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 local_unnamed_addr global i32, align 4
@n1 = external dso_local local_unnamed_addr global i32, align 4
@n2 = external dso_local local_unnamed_addr global i32, align 4
@_Z3strB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_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 = 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) @_Z3strB5cxx11)
  %2 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11) #5
  %3 = trunc i64 %2 to i32
  store i32 %3, ptr @n, align 4, !tbaa !5
  %4 = sdiv i32 %3, 2
  %5 = icmp sgt i32 %3, -2
  br i1 %5, label %.lr.ph, label %15

.lr.ph:                                           ; preds = %0
  %6 = add nsw i32 %3, 2
  br label %7

7:                                                ; preds = %.lr.ph, %12
  %storemerge18 = phi i32 [ %4, %.lr.ph ], [ %13, %12 ]
  %8 = shl i32 %storemerge18, 1
  %9 = sub i32 %6, %8
  %10 = icmp sgt i32 %storemerge18, %9
  %11 = icmp slt i32 %9, 3
  %or.cond.not17 = or i1 %10, %11
  %.not = icmp sgt i32 %9, %3
  %or.cond14 = or i1 %.not, %or.cond.not17
  br i1 %or.cond14, label %12, label %._crit_edge

12:                                               ; preds = %7
  %13 = add nsw i32 %storemerge18, -1
  %14 = icmp sgt i32 %storemerge18, 0
  br i1 %14, label %7, label %.thread, !llvm.loop !9

._crit_edge:                                      ; preds = %7
  store i32 %9, ptr @n2, align 4, !tbaa !5
  br label %15

.thread:                                          ; preds = %12
  store i32 %6, ptr @n2, align 4, !tbaa !5
  store i32 -1, ptr @n1, align 4, !tbaa !5
  br label %.preheader

15:                                               ; preds = %._crit_edge, %0
  %storemerge.lcssa = phi i32 [ %storemerge18, %._crit_edge ], [ %4, %0 ]
  store i32 %storemerge.lcssa, ptr @n1, align 4, !tbaa !5
  %16 = icmp sgt i32 %storemerge.lcssa, 1
  br i1 %16, label %.lr.ph28, label %.preheaderthread-pre-split

.preheaderthread-pre-split:                       ; preds = %._crit_edge25, %15
  %.pr = load i32, ptr @n2, align 4, !tbaa !5
  br label %.preheader

.preheader:                                       ; preds = %.preheaderthread-pre-split, %.thread
  %17 = phi i32 [ %.pr, %.preheaderthread-pre-split ], [ %6, %.thread ]
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph30, label %._crit_edge31

.lr.ph28:                                         ; preds = %15, %._crit_edge25
  %indvars.iv = phi i64 [ %indvars.iv.next, %._crit_edge25 ], [ 0, %15 ]
  %19 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %indvars.iv)
  %20 = load i8, ptr %19, align 1, !tbaa !11
  %21 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %20)
  %22 = load i32, ptr @n2, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 2
  br i1 %23, label %.lr.ph24, label %._crit_edge25

._crit_edge25:                                    ; preds = %.lr.ph24, %.lr.ph28
  %24 = load i32, ptr @n, align 4, !tbaa !5
  %25 = trunc nuw nsw i64 %indvars.iv to i32
  %26 = xor i32 %25, -1
  %27 = add i32 %24, %26
  %28 = sext i32 %27 to i64
  %29 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %28)
  %30 = load i8, ptr %29, align 1, !tbaa !11
  %31 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %30)
  %32 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %31, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %33 = load i32, ptr @n1, align 4, !tbaa !5
  %34 = add nsw i32 %33, -1
  %35 = sext i32 %34 to i64
  %36 = icmp slt i64 %indvars.iv.next, %35
  br i1 %36, label %.lr.ph28, label %.preheaderthread-pre-split, !llvm.loop !12

.lr.ph24:                                         ; preds = %.lr.ph28, %.lr.ph24
  %.01022 = phi i32 [ %38, %.lr.ph24 ], [ 0, %.lr.ph28 ]
  %37 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %38 = add nuw nsw i32 %.01022, 1
  %39 = load i32, ptr @n2, align 4, !tbaa !5
  %40 = add nsw i32 %39, -2
  %41 = icmp slt i32 %38, %40
  br i1 %41, label %.lr.ph24, label %._crit_edge25, !llvm.loop !13

._crit_edge31:                                    ; preds = %.lr.ph30, %.preheader
  ret i32 0

.lr.ph30:                                         ; preds = %.preheader, %.lr.ph30
  %.029 = phi i32 [ %49, %.lr.ph30 ], [ 0, %.preheader ]
  %42 = load i32, ptr @n1, align 4, !tbaa !5
  %43 = add nsw i32 %.029, -1
  %44 = add i32 %43, %42
  %45 = sext i32 %44 to i64
  %46 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z3strB5cxx11, i64 noundef %45)
  %47 = load i8, ptr %46, align 1, !tbaa !11
  %48 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %47)
  %49 = add nuw nsw i32 %.029, 1
  %50 = load i32, ptr @n2, align 4, !tbaa !5
  %51 = icmp slt i32 %49, %50
  br i1 %51, label %.lr.ph30, label %._crit_edge31, !llvm.loop !14
}

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 #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; 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 #3

; 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 #2 align 2

; 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

; 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 #4 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 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 = { 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 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


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