; LLVM IR from DionysiosB/CodeForces :: 0100-0199 (186A-ComparingStrings)

; 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::__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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  %11 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %2)
          to label %12 unwind label %19

12:                                               ; preds = %0
  %13 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 %14 unwind label %19

14:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #5
  store i8 1, ptr %6, align 1, !tbaa !5
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %16 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  %17 = icmp ne i64 %15, %16
  br i1 %17, label %18, label %23

18:                                               ; preds = %14
  store i8 0, ptr %6, align 1, !tbaa !5
  br label %113

19:                                               ; preds = %12, %0
  %20 = landingpad { ptr, i32 }
          cleanup
  %21 = extractvalue { ptr, i32 } %20, 0
  store ptr %21, ptr %4, align 8
  %22 = extractvalue { ptr, i32 } %20, 1
  store i32 %22, ptr %5, align 4
  br label %129

23:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 -1, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store i64 -1, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  store i32 0, ptr %9, align 4, !tbaa !11
  br label %24

24:                                               ; preds = %65, %23
  %25 = load i32, ptr %9, align 4, !tbaa !11
  %26 = sext i32 %25 to i64
  %27 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %28 = icmp ult i64 %26, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %24
  store i32 2, ptr %10, align 4
  br label %68

30:                                               ; preds = %24
  %31 = load i32, ptr %9, align 4, !tbaa !11
  %32 = sext i32 %31 to i64
  %33 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %32)
          to label %34 unwind label %45

34:                                               ; preds = %30
  %35 = load i8, ptr %33, align 1, !tbaa !13
  %36 = sext i8 %35 to i32
  %37 = load i32, ptr %9, align 4, !tbaa !11
  %38 = sext i32 %37 to i64
  %39 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %38)
          to label %40 unwind label %45

40:                                               ; preds = %34
  %41 = load i8, ptr %39, align 1, !tbaa !13
  %42 = sext i8 %41 to i32
  %43 = icmp eq i32 %36, %42
  br i1 %43, label %44, label %49

44:                                               ; preds = %40
  br label %65

45:                                               ; preds = %34, %30
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %4, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %112

49:                                               ; preds = %40
  %50 = load i64, ptr %7, align 8, !tbaa !9
  %51 = icmp slt i64 %50, 0
  br i1 %51, label %52, label %55

52:                                               ; preds = %49
  %53 = load i32, ptr %9, align 4, !tbaa !11
  %54 = sext i32 %53 to i64
  store i64 %54, ptr %7, align 8, !tbaa !9
  br label %63

55:                                               ; preds = %49
  %56 = load i64, ptr %8, align 8, !tbaa !9
  %57 = icmp slt i64 %56, 0
  br i1 %57, label %58, label %61

58:                                               ; preds = %55
  %59 = load i32, ptr %9, align 4, !tbaa !11
  %60 = sext i32 %59 to i64
  store i64 %60, ptr %8, align 8, !tbaa !9
  br label %62

61:                                               ; preds = %55
  store i8 0, ptr %6, align 1, !tbaa !5
  store i32 2, ptr %10, align 4
  br label %68

62:                                               ; preds = %58
  br label %63

63:                                               ; preds = %62, %52
  br label %64

64:                                               ; preds = %63
  br label %65

65:                                               ; preds = %64, %44
  %66 = load i32, ptr %9, align 4, !tbaa !11
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %9, align 4, !tbaa !11
  br label %24, !llvm.loop !14

68:                                               ; preds = %61, %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %69

69:                                               ; preds = %68
  %70 = load i64, ptr %7, align 8, !tbaa !9
  %71 = icmp sge i64 %70, 0
  br i1 %71, label %72, label %76

72:                                               ; preds = %69
  %73 = load i64, ptr %8, align 8, !tbaa !9
  %74 = icmp slt i64 %73, 0
  br i1 %74, label %75, label %76

75:                                               ; preds = %72
  store i8 0, ptr %6, align 1, !tbaa !5
  br label %76

76:                                               ; preds = %75, %72, %69
  %77 = load i64, ptr %7, align 8, !tbaa !9
  %78 = icmp sge i64 %77, 0
  br i1 %78, label %79, label %111

79:                                               ; preds = %76
  %80 = load i64, ptr %8, align 8, !tbaa !9
  %81 = icmp sge i64 %80, 0
  br i1 %81, label %82, label %111

82:                                               ; preds = %79
  %83 = load i64, ptr %7, align 8, !tbaa !9
  %84 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %83)
          to label %85 unwind label %107

85:                                               ; preds = %82
  %86 = load i8, ptr %84, align 1, !tbaa !13
  %87 = sext i8 %86 to i32
  %88 = load i64, ptr %8, align 8, !tbaa !9
  %89 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %88)
          to label %90 unwind label %107

90:                                               ; preds = %85
  %91 = load i8, ptr %89, align 1, !tbaa !13
  %92 = sext i8 %91 to i32
  %93 = icmp ne i32 %87, %92
  br i1 %93, label %106, label %94

94:                                               ; preds = %90
  %95 = load i64, ptr %8, align 8, !tbaa !9
  %96 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %95)
          to label %97 unwind label %107

97:                                               ; preds = %94
  %98 = load i8, ptr %96, align 1, !tbaa !13
  %99 = sext i8 %98 to i32
  %100 = load i64, ptr %7, align 8, !tbaa !9
  %101 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %100)
          to label %102 unwind label %107

102:                                              ; preds = %97
  %103 = load i8, ptr %101, align 1, !tbaa !13
  %104 = sext i8 %103 to i32
  %105 = icmp ne i32 %99, %104
  br i1 %105, label %106, label %111

106:                                              ; preds = %102, %90
  store i8 0, ptr %6, align 1, !tbaa !5
  br label %111

107:                                              ; preds = %97, %94, %85, %82
  %108 = landingpad { ptr, i32 }
          cleanup
  %109 = extractvalue { ptr, i32 } %108, 0
  store ptr %109, ptr %4, align 8
  %110 = extractvalue { ptr, i32 } %108, 1
  store i32 %110, ptr %5, align 4
  br label %112

111:                                              ; preds = %106, %102, %79, %76
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %113

112:                                              ; preds = %107, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %128

113:                                              ; preds = %111, %18
  %114 = load i8, ptr %6, align 1, !tbaa !5, !range !16, !noundef !17
  %115 = trunc i8 %114 to i1
  br i1 %115, label %116, label %123

116:                                              ; preds = %113
  %117 = invoke i32 @puts(ptr noundef @.str)
          to label %118 unwind label %119

118:                                              ; preds = %116
  br label %126

119:                                              ; preds = %123, %116
  %120 = landingpad { ptr, i32 }
          cleanup
  %121 = extractvalue { ptr, i32 } %120, 0
  store ptr %121, ptr %4, align 8
  %122 = extractvalue { ptr, i32 } %120, 1
  store i32 %122, ptr %5, align 4
  br label %128

123:                                              ; preds = %113
  %124 = invoke i32 @puts(ptr noundef @.str.1)
          to label %125 unwind label %119

125:                                              ; preds = %123
  br label %126

126:                                              ; preds = %125, %118
  store i32 0, ptr %1, align 4
  store i32 1, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  %127 = load i32, ptr %1, align 4
  ret i32 %127

128:                                              ; preds = %119, %112
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  br label %129

129:                                              ; preds = %128, %19
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  br label %130

130:                                              ; preds = %129
  %131 = load ptr, ptr %4, align 8
  %132 = load i32, ptr %5, align 4
  %133 = insertvalue { ptr, i32 } poison, ptr %131, 0
  %134 = insertvalue { ptr, i32 } %133, i32 %132, 1
  resume { ptr, i32 } %134
}

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #3

declare i32 @__gxx_personality_v0(...)

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

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

declare i32 @puts(ptr noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{i8 0, i8 2}
!17 = !{}


; 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::__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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %3 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %1)
          to label %4 unwind label %11

4:                                                ; preds = %0
  %5 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %2)
          to label %6 unwind label %11

6:                                                ; preds = %4
  %7 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %8 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %.not = icmp eq i64 %7, %8
  br i1 %.not, label %.preheader, label %.critedge

.preheader:                                       ; preds = %6
  %9 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %10 = icmp eq i64 %9, 0
  br i1 %10, label %._crit_edge.thread, label %.lr.ph

11:                                               ; preds = %4, %0
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  resume { ptr, i32 } %12

.lr.ph:                                           ; preds = %.preheader, %22
  %indvars.iv = phi i64 [ %indvars.iv.next, %22 ], [ 0, %.preheader ]
  %.02233 = phi i64 [ %.1, %22 ], [ -1, %.preheader ]
  %.02332 = phi i64 [ %.124, %22 ], [ -1, %.preheader ]
  %13 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %16 = load i8, ptr %15, align 1, !tbaa !5
  %17 = icmp eq i8 %14, %16
  br i1 %17, label %22, label %18

18:                                               ; preds = %.lr.ph
  %19 = icmp slt i64 %.02332, 0
  br i1 %19, label %22, label %20

20:                                               ; preds = %18
  %21 = icmp slt i64 %.02233, 0
  br i1 %21, label %22, label %._crit_edge

22:                                               ; preds = %20, %18, %.lr.ph
  %.124 = phi i64 [ %.02332, %.lr.ph ], [ %indvars.iv, %18 ], [ %.02332, %20 ]
  %.1 = phi i64 [ %.02233, %.lr.ph ], [ %.02233, %18 ], [ %indvars.iv, %20 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %23 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %.not41 = icmp ugt i64 %23, %indvars.iv.next
  br i1 %.not41, label %.lr.ph, label %._crit_edge, !llvm.loop !8

._crit_edge:                                      ; preds = %22, %20
  %.023.lcssa = phi i64 [ %.124, %22 ], [ %.02332, %20 ]
  %.022.lcssa = phi i64 [ %.1, %22 ], [ %.02233, %20 ]
  %.lcssa = phi i1 [ true, %22 ], [ false, %20 ]
  %24 = icmp sgt i64 %.023.lcssa, -1
  %25 = icmp sgt i64 %.022.lcssa, -1
  %not. = xor i1 %24, true
  %or.cond = select i1 %not., i1 true, i1 %25
  %or.cond3 = select i1 %24, i1 %25, i1 false
  br i1 %or.cond3, label %26, label %._crit_edge.thread

26:                                               ; preds = %._crit_edge
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.023.lcssa)
  %28 = load i8, ptr %27, align 1, !tbaa !5
  %29 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %.022.lcssa)
  %30 = load i8, ptr %29, align 1, !tbaa !5
  %.not28 = icmp eq i8 %28, %30
  br i1 %.not28, label %31, label %.critedge

31:                                               ; preds = %26
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.022.lcssa)
  %33 = load i8, ptr %32, align 1, !tbaa !5
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %.023.lcssa)
  %35 = load i8, ptr %34, align 1, !tbaa !5
  %.not29 = icmp eq i8 %33, %35
  %36 = and i1 %or.cond, %.lcssa
  %or.cond31 = select i1 %.not29, i1 %36, i1 false
  br i1 %or.cond31, label %37, label %.critedge

._crit_edge.thread:                               ; preds = %.preheader, %._crit_edge
  %or.cond49 = phi i1 [ %or.cond, %._crit_edge ], [ true, %.preheader ]
  %.lcssa48 = phi i1 [ %.lcssa, %._crit_edge ], [ true, %.preheader ]
  %.old = and i1 %or.cond49, %.lcssa48
  br i1 %.old, label %37, label %.critedge

.critedge:                                        ; preds = %31, %26, %6, %._crit_edge.thread
  br label %37

37:                                               ; preds = %._crit_edge.thread, %31, %.critedge
  %.str.1.sink = phi ptr [ @.str.1, %.critedge ], [ @.str, %31 ], [ @.str, %._crit_edge.thread ]
  %38 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %.str.1.sink)
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  ret i32 0
}

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 #3

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nofree nounwind "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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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