; LLVM IR from abeaumont/competitive-programming :: kattis/quiteaproblem.ll/Z4findRNSt7 (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::__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::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z4findRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i8, align 1
  %13 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %14) #3
  %16 = icmp ult i64 %15, 7
  br i1 %16, label %17, label %18

17:                                               ; preds = %1
  store i1 false, ptr %2, align 1
  br label %103

18:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %19 unwind label %29

19:                                               ; preds = %18
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %20 unwind label %33

20:                                               ; preds = %19
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %21

21:                                               ; preds = %94, %20
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %24) #3
  %26 = sub i64 %25, 7
  %27 = icmp ule i64 %23, %26
  br i1 %27, label %37, label %28

28:                                               ; preds = %21
  store i32 2, ptr %11, align 4
  br label %97

29:                                               ; preds = %18
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %6, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %7, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  br label %102

33:                                               ; preds = %19
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %6, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %7, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  br label %101

37:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #3
  store i8 1, ptr %12, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %38

38:                                               ; preds = %82, %37
  %39 = load i32, ptr %13, align 4, !tbaa !9
  %40 = icmp slt i32 %39, 7
  br i1 %40, label %42, label %41

41:                                               ; preds = %38
  store i32 5, ptr %11, align 4
  br label %85

42:                                               ; preds = %38
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = load i32, ptr %10, align 4, !tbaa !9
  %45 = load i32, ptr %13, align 4, !tbaa !9
  %46 = add nsw i32 %44, %45
  %47 = sext i32 %46 to i64
  %48 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %43, i64 noundef %47)
          to label %49 unwind label %77

49:                                               ; preds = %42
  %50 = load i8, ptr %48, align 1, !tbaa !13
  %51 = sext i8 %50 to i32
  %52 = load i32, ptr %13, align 4, !tbaa !9
  %53 = sext i32 %52 to i64
  %54 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %53)
          to label %55 unwind label %77

55:                                               ; preds = %49
  %56 = load i8, ptr %54, align 1, !tbaa !13
  %57 = sext i8 %56 to i32
  %58 = icmp ne i32 %51, %57
  br i1 %58, label %59, label %81

59:                                               ; preds = %55
  %60 = load ptr, ptr %3, align 8, !tbaa !5
  %61 = load i32, ptr %10, align 4, !tbaa !9
  %62 = load i32, ptr %13, align 4, !tbaa !9
  %63 = add nsw i32 %61, %62
  %64 = sext i32 %63 to i64
  %65 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %60, i64 noundef %64)
          to label %66 unwind label %77

66:                                               ; preds = %59
  %67 = load i8, ptr %65, align 1, !tbaa !13
  %68 = sext i8 %67 to i32
  %69 = load i32, ptr %13, align 4, !tbaa !9
  %70 = sext i32 %69 to i64
  %71 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %8, i64 noundef %70)
          to label %72 unwind label %77

72:                                               ; preds = %66
  %73 = load i8, ptr %71, align 1, !tbaa !13
  %74 = sext i8 %73 to i32
  %75 = icmp ne i32 %68, %74
  br i1 %75, label %76, label %81

76:                                               ; preds = %72
  store i8 0, ptr %12, align 1, !tbaa !11
  store i32 5, ptr %11, align 4
  br label %85

77:                                               ; preds = %66, %59, %49, %42
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %6, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  br label %101

81:                                               ; preds = %72, %55
  br label %82

82:                                               ; preds = %81
  %83 = load i32, ptr %13, align 4, !tbaa !9
  %84 = add nsw i32 %83, 1
  store i32 %84, ptr %13, align 4, !tbaa !9
  br label %38, !llvm.loop !14

85:                                               ; preds = %76, %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %86

86:                                               ; preds = %85
  %87 = load i8, ptr %12, align 1, !tbaa !11, !range !16, !noundef !17
  %88 = trunc i8 %87 to i1
  br i1 %88, label %89, label %90

89:                                               ; preds = %86
  store i1 true, ptr %2, align 1
  store i32 1, ptr %11, align 4
  br label %91

90:                                               ; preds = %86
  store i32 0, ptr %11, align 4
  br label %91

91:                                               ; preds = %90, %89
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  %92 = load i32, ptr %11, align 4
  switch i32 %92, label %97 [
    i32 0, label %93
  ]

93:                                               ; preds = %91
  br label %94

94:                                               ; preds = %93
  %95 = load i32, ptr %10, align 4, !tbaa !9
  %96 = add nsw i32 %95, 1
  store i32 %96, ptr %10, align 4, !tbaa !9
  br label %21, !llvm.loop !18

97:                                               ; preds = %91, %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %98 = load i32, ptr %11, align 4
  switch i32 %98, label %100 [
    i32 2, label %99
  ]

99:                                               ; preds = %97
  store i1 false, ptr %2, align 1
  store i32 1, ptr %11, align 4
  br label %100

100:                                              ; preds = %99, %97
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #3
  br label %103

101:                                              ; preds = %77, %33
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  br label %102

102:                                              ; preds = %101, %29
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #3
  br label %105

103:                                              ; preds = %100, %17
  %104 = load i1, ptr %2, align 1
  ret i1 %104

105:                                              ; preds = %102
  %106 = load ptr, ptr %6, align 8
  %107 = load i32, ptr %7, align 4
  %108 = insertvalue { ptr, i32 } poison, ptr %106, 0
  %109 = insertvalue { ptr, i32 } %108, i32 %107, 1
  resume { ptr, i32 } %109
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; 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 void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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) #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

attributes #0 = { 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 #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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::__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::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z4findRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  %7 = icmp ult i64 %6, 7
  br i1 %7, label %95, label %8

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %9 unwind label %16

9:                                                ; preds = %8
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %10 unwind label %18

10:                                               ; preds = %9
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  br label %.preheader

.preheader:                                       ; preds = %10, %91
  %indvars.iv = phi i64 [ 0, %10 ], [ %indvars.iv.next.pre-phi, %91 ]
  %12 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
  %15 = load i8, ptr %14, align 1, !tbaa !5
  %.not28 = icmp eq i8 %13, %15
  br i1 %.not28, label %25, label %20

16:                                               ; preds = %8
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  br label %94

18:                                               ; preds = %9
  %19 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #3
  br label %94

20:                                               ; preds = %.preheader
  %21 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %22 = load i8, ptr %21, align 1, !tbaa !5
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
  %24 = load i8, ptr %23, align 1, !tbaa !5
  %.not29 = icmp eq i8 %22, %24
  br i1 %.not29, label %25, label %._crit_edge

._crit_edge:                                      ; preds = %20
  %.pre = add nuw nsw i64 %indvars.iv, 1
  br label %91

25:                                               ; preds = %.preheader, %20
  %26 = add nuw nsw i64 %indvars.iv, 1
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %26)
  %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 1)
  %30 = load i8, ptr %29, align 1, !tbaa !5
  %.not28.1 = icmp eq i8 %28, %30
  br i1 %.not28.1, label %36, label %31

31:                                               ; preds = %25
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %26)
  %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) %4, i64 noundef 1)
  %35 = load i8, ptr %34, align 1, !tbaa !5
  %.not29.1 = icmp eq i8 %33, %35
  br i1 %.not29.1, label %36, label %91

36:                                               ; preds = %31, %25
  %37 = add nuw nsw i64 %indvars.iv, 2
  %38 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %37)
  %39 = load i8, ptr %38, align 1, !tbaa !5
  %40 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 2)
  %41 = load i8, ptr %40, align 1, !tbaa !5
  %.not28.2 = icmp eq i8 %39, %41
  br i1 %.not28.2, label %47, label %42

42:                                               ; preds = %36
  %43 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %37)
  %44 = load i8, ptr %43, align 1, !tbaa !5
  %45 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 2)
  %46 = load i8, ptr %45, align 1, !tbaa !5
  %.not29.2 = icmp eq i8 %44, %46
  br i1 %.not29.2, label %47, label %91

47:                                               ; preds = %42, %36
  %48 = add nuw nsw i64 %indvars.iv, 3
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %48)
  %50 = load i8, ptr %49, align 1, !tbaa !5
  %51 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 3)
  %52 = load i8, ptr %51, align 1, !tbaa !5
  %.not28.3 = icmp eq i8 %50, %52
  br i1 %.not28.3, label %58, label %53

53:                                               ; preds = %47
  %54 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %48)
  %55 = load i8, ptr %54, align 1, !tbaa !5
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 3)
  %57 = load i8, ptr %56, align 1, !tbaa !5
  %.not29.3 = icmp eq i8 %55, %57
  br i1 %.not29.3, label %58, label %91

58:                                               ; preds = %53, %47
  %59 = add nuw nsw i64 %indvars.iv, 4
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %59)
  %61 = load i8, ptr %60, align 1, !tbaa !5
  %62 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 4)
  %63 = load i8, ptr %62, align 1, !tbaa !5
  %.not28.4 = icmp eq i8 %61, %63
  br i1 %.not28.4, label %69, label %64

64:                                               ; preds = %58
  %65 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %59)
  %66 = load i8, ptr %65, align 1, !tbaa !5
  %67 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 4)
  %68 = load i8, ptr %67, align 1, !tbaa !5
  %.not29.4 = icmp eq i8 %66, %68
  br i1 %.not29.4, label %69, label %91

69:                                               ; preds = %64, %58
  %70 = add nuw nsw i64 %indvars.iv, 5
  %71 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %70)
  %72 = load i8, ptr %71, align 1, !tbaa !5
  %73 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 5)
  %74 = load i8, ptr %73, align 1, !tbaa !5
  %.not28.5 = icmp eq i8 %72, %74
  br i1 %.not28.5, label %80, label %75

75:                                               ; preds = %69
  %76 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %70)
  %77 = load i8, ptr %76, align 1, !tbaa !5
  %78 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 5)
  %79 = load i8, ptr %78, align 1, !tbaa !5
  %.not29.5 = icmp eq i8 %77, %79
  br i1 %.not29.5, label %80, label %91

80:                                               ; preds = %75, %69
  %81 = add nuw nsw i64 %indvars.iv, 6
  %82 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %81)
  %83 = load i8, ptr %82, align 1, !tbaa !5
  %84 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 6)
  %85 = load i8, ptr %84, align 1, !tbaa !5
  %.not28.6 = icmp eq i8 %83, %85
  br i1 %.not28.6, label %.critedge, label %86

86:                                               ; preds = %80
  %87 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %81)
  %88 = load i8, ptr %87, align 1, !tbaa !5
  %89 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 6)
  %90 = load i8, ptr %89, align 1, !tbaa !5
  %.not29.6 = icmp eq i8 %88, %90
  br i1 %.not29.6, label %.critedge, label %91

91:                                               ; preds = %._crit_edge, %86, %75, %64, %53, %42, %31
  %indvars.iv.next.pre-phi = phi i64 [ %.pre, %._crit_edge ], [ %26, %86 ], [ %26, %75 ], [ %26, %64 ], [ %26, %53 ], [ %26, %42 ], [ %26, %31 ]
  %92 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3
  %93 = add i64 %92, -7
  %.not.not = icmp ult i64 %93, %indvars.iv.next.pre-phi
  br i1 %.not.not, label %.critedge, label %.preheader, !llvm.loop !8

.critedge:                                        ; preds = %91, %80, %86
  %.not33 = phi i1 [ true, %86 ], [ true, %80 ], [ false, %91 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #3
  br label %95

94:                                               ; preds = %18, %16
  %.pn = phi { ptr, i32 } [ %19, %18 ], [ %17, %16 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #3
  resume { ptr, i32 } %.pn

95:                                               ; preds = %1, %.critedge
  %.4 = phi i1 [ %.not33, %.critedge ], [ false, %1 ]
  ret i1 %.4
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; 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 void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; 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 nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

attributes #0 = { 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 #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass