; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 938A. Word Correction.ll/Z11makeCorrectNSt7 (cxx1112basic_stringIcSt11char_traitsIcESaIcEEE)

; 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_ostream" = type { ptr, %"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::__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] }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7isVowelc(i8 noundef signext) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z9isCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #1

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; 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) #0 align 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
define dso_local void @_Z11makeCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca i8, align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %12 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %13 = trunc i64 %12 to i32
  store i32 %13, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #4
  store i8 0, ptr %7, align 1, !tbaa !11
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %54, %1
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %18, label %57

18:                                               ; preds = %14
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %20)
          to label %22 unwind label %42

22:                                               ; preds = %18
  %23 = load i8, ptr %21, align 1, !tbaa !13
  %24 = call noundef zeroext i1 @_Z7isVowelc(i8 noundef signext %23)
  br i1 %24, label %25, label %46

25:                                               ; preds = %22
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = add nsw i32 %26, 1
  %28 = sext i32 %27 to i64
  %29 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %28)
          to label %30 unwind label %42

30:                                               ; preds = %25
  %31 = load i8, ptr %29, align 1, !tbaa !13
  %32 = call noundef zeroext i1 @_Z7isVowelc(i8 noundef signext %31)
  br i1 %32, label %33, label %46

33:                                               ; preds = %30
  %34 = load i32, ptr %4, align 4, !tbaa !9
  %35 = sext i32 %34 to i64
  %36 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %35)
          to label %37 unwind label %42

37:                                               ; preds = %33
  %38 = load i8, ptr %36, align 1, !tbaa !13
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %6, i8 noundef signext %38)
          to label %39 unwind label %42

39:                                               ; preds = %37
  %40 = load i32, ptr %4, align 4, !tbaa !9
  %41 = add nsw i32 %40, 2
  store i32 %41, ptr %5, align 4, !tbaa !9
  store i8 1, ptr %7, align 1, !tbaa !11
  br label %57

42:                                               ; preds = %95, %93, %82, %77, %70, %66, %50, %46, %37, %33, %25, %18
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %8, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %9, align 4
  br label %99

46:                                               ; preds = %30, %22
  %47 = load i32, ptr %4, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %48)
          to label %50 unwind label %42

50:                                               ; preds = %46
  %51 = load i8, ptr %49, align 1, !tbaa !13
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %6, i8 noundef signext %51)
          to label %52 unwind label %42

52:                                               ; preds = %50
  br label %53

53:                                               ; preds = %52
  br label %54

54:                                               ; preds = %53
  %55 = load i32, ptr %4, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %4, align 4, !tbaa !9
  br label %14, !llvm.loop !14

57:                                               ; preds = %39, %14
  %58 = load i8, ptr %7, align 1, !tbaa !11, !range !16, !noundef !17
  %59 = trunc i8 %58 to i1
  br i1 %59, label %60, label %77

60:                                               ; preds = %57
  %61 = load i32, ptr %5, align 4, !tbaa !9
  store i32 %61, ptr %4, align 4, !tbaa !9
  br label %62

62:                                               ; preds = %73, %60
  %63 = load i32, ptr %4, align 4, !tbaa !9
  %64 = load i32, ptr %3, align 4, !tbaa !9
  %65 = icmp slt i32 %63, %64
  br i1 %65, label %66, label %76

66:                                               ; preds = %62
  %67 = load i32, ptr %4, align 4, !tbaa !9
  %68 = sext i32 %67 to i64
  %69 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %68)
          to label %70 unwind label %42

70:                                               ; preds = %66
  %71 = load i8, ptr %69, align 1, !tbaa !13
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %6, i8 noundef signext %71)
          to label %72 unwind label %42

72:                                               ; preds = %70
  br label %73

73:                                               ; preds = %72
  %74 = load i32, ptr %4, align 4, !tbaa !9
  %75 = add nsw i32 %74, 1
  store i32 %75, ptr %4, align 4, !tbaa !9
  br label %62, !llvm.loop !18

76:                                               ; preds = %62
  br label %77

77:                                               ; preds = %76, %57
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %78 unwind label %42

78:                                               ; preds = %77
  %79 = invoke noundef zeroext i1 @_Z9isCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %10)
          to label %80 unwind label %85

80:                                               ; preds = %78
  %81 = xor i1 %79, true
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  br i1 %81, label %82, label %93

82:                                               ; preds = %80
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %83 unwind label %42

83:                                               ; preds = %82
  invoke void @_Z11makeCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %11)
          to label %84 unwind label %89

84:                                               ; preds = %83
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #4
  br label %98

85:                                               ; preds = %78
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %8, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  br label %99

89:                                               ; preds = %83
  %90 = landingpad { ptr, i32 }
          cleanup
  %91 = extractvalue { ptr, i32 } %90, 0
  store ptr %91, ptr %8, align 8
  %92 = extractvalue { ptr, i32 } %90, 1
  store i32 %92, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #4
  br label %99

93:                                               ; preds = %80
  %94 = invoke 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) %6)
          to label %95 unwind label %42

95:                                               ; preds = %93
  %96 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %94, ptr noundef @.str)
          to label %97 unwind label %42

97:                                               ; preds = %95
  br label %98

98:                                               ; preds = %97, %84
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret void

99:                                               ; preds = %89, %85, %42
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %100

100:                                              ; preds = %99
  %101 = load ptr, ptr %8, align 8
  %102 = load i32, ptr %9, align 4
  %103 = insertvalue { ptr, i32 } poison, ptr %101, 0
  %104 = insertvalue { ptr, i32 } %103, i32 %102, 1
  resume { ptr, i32 } %104
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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) #3

; 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)) #3

attributes #0 = { 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 #1 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = distinct !{!18, !15}


; 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_ostream" = type { ptr, %"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::__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] }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7isVowelc(i8 noundef signext) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z9isCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #1

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; 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 #0 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11makeCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %0) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %6 = trunc i64 %5 to i32
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph.preheader, label %.thread

.lr.ph.preheader:                                 ; preds = %1
  %wide.trip.count = and i64 %5, 2147483647
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %22
  %indvars.iv37 = phi i64 [ 2, %.lr.ph.preheader ], [ %indvars.iv.next38, %22 ]
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %22 ]
  %8 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = call noundef zeroext i1 @_Z7isVowelc(i8 noundef signext %9)
  br i1 %10, label %11, label %19

11:                                               ; preds = %.lr.ph
  %12 = add nuw nsw i64 %indvars.iv, 1
  %13 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %12)
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %15 = call noundef zeroext i1 @_Z7isVowelc(i8 noundef signext %14)
  br i1 %15, label %16, label %19

16:                                               ; preds = %11
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %18 = load i8, ptr %17, align 1, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %2, i8 noundef signext %18)
          to label %23 unwind label %.loopexit.split-lp.loopexit.split-lp

.loopexit:                                        ; preds = %.lr.ph30
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit.split-lp

.loopexit.split-lp.loopexit:                      ; preds = %19
  %lpad.loopexit22 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit.split-lp

.loopexit.split-lp.loopexit.split-lp:             ; preds = %42, %40, %33, %.thread, %16
  %lpad.loopexit.split-lp23 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit.split-lp

19:                                               ; preds = %11, %.lr.ph
  %20 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %21 = load i8, ptr %20, align 1, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %2, i8 noundef signext %21)
          to label %22 unwind label %.loopexit.split-lp.loopexit

22:                                               ; preds = %19
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  %indvars.iv.next38 = add nuw nsw i64 %indvars.iv37, 1
  br i1 %exitcond.not, label %.thread, label %.lr.ph, !llvm.loop !8

23:                                               ; preds = %16
  %24 = trunc nuw nsw i64 %indvars.iv to i32
  %25 = add nuw nsw i32 %24, 2
  %26 = icmp slt i32 %25, %6
  br i1 %26, label %.lr.ph30, label %.thread

.lr.ph30:                                         ; preds = %23, %29
  %indvars.iv41 = phi i64 [ %indvars.iv.next42, %29 ], [ %indvars.iv37, %23 ]
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv41)
  %28 = load i8, ptr %27, align 1, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32) %2, i8 noundef signext %28)
          to label %29 unwind label %.loopexit

29:                                               ; preds = %.lr.ph30
  %indvars.iv.next42 = add nuw nsw i64 %indvars.iv41, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next42 to i32
  %exitcond44.not = icmp eq i32 %lftr.wideiv, %6
  br i1 %exitcond44.not, label %.thread, label %.lr.ph30, !llvm.loop !10

.thread:                                          ; preds = %22, %29, %1, %23
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %30 unwind label %.loopexit.split-lp.loopexit.split-lp

30:                                               ; preds = %.thread
  %31 = invoke noundef zeroext i1 @_Z9isCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %3)
          to label %32 unwind label %36

32:                                               ; preds = %30
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br i1 %31, label %40, label %33

33:                                               ; preds = %32
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %34 unwind label %.loopexit.split-lp.loopexit.split-lp

34:                                               ; preds = %33
  invoke void @_Z11makeCorrectNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %4)
          to label %35 unwind label %38

35:                                               ; preds = %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  br label %44

36:                                               ; preds = %30
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br label %.loopexit.split-lp

38:                                               ; preds = %34
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  br label %.loopexit.split-lp

40:                                               ; preds = %32
  %41 = invoke 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) %2)
          to label %42 unwind label %.loopexit.split-lp.loopexit.split-lp

42:                                               ; preds = %40
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef nonnull @.str)
          to label %44 unwind label %.loopexit.split-lp.loopexit.split-lp

44:                                               ; preds = %42, %35
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  ret void

.loopexit.split-lp:                               ; preds = %.loopexit, %.loopexit.split-lp.loopexit.split-lp, %.loopexit.split-lp.loopexit, %38, %36
  %.pn = phi { ptr, i32 } [ %39, %38 ], [ %37, %36 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit22, %.loopexit.split-lp.loopexit ], [ %lpad.loopexit.split-lp23, %.loopexit.split-lp.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9push_backEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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: 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

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = distinct !{!10, !9}


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