; LLVM IR from forestLoop/Learning-ITMO-Academy-Pilot-Course :: suffix-array (3-B)

; 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] }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z11countSubstrRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIiSaIiEES6_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca i1, align 1
  %14 = alloca i1, align 1
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %20) #4
  %22 = trunc i64 %21 to i32
  store i32 %22, ptr %9, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %50, %3
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = load i32, ptr %9, align 4, !tbaa !9
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %27, label %51

27:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = load i32, ptr %9, align 4, !tbaa !9
  %30 = load i32, ptr %8, align 4, !tbaa !9
  %31 = sub nsw i32 %29, %30
  %32 = sdiv i32 %31, 2
  %33 = add nsw i32 %28, %32
  store i32 %33, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #4
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  %36 = load i32, ptr %10, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef %37) #4
  %39 = load i32, ptr %38, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = load ptr, ptr %7, align 8, !tbaa !5
  %42 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %41) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %11, ptr noundef nonnull align 8 dereferenceable(32) %34, i64 noundef %40, i64 noundef %42)
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = call noundef zeroext i1 @_ZStltIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %43) #4
  br i1 %44, label %45, label %48

45:                                               ; preds = %27
  %46 = load i32, ptr %10, align 4, !tbaa !9
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %8, align 4, !tbaa !9
  br label %50

48:                                               ; preds = %27
  %49 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %49, ptr %9, align 4, !tbaa !9
  br label %50

50:                                               ; preds = %48, %45
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %23, !llvm.loop !11

51:                                               ; preds = %23
  %52 = load i32, ptr %8, align 4, !tbaa !9
  %53 = sext i32 %52 to i64
  %54 = load ptr, ptr %6, align 8, !tbaa !5
  %55 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %54) #4
  %56 = icmp uge i64 %53, %55
  store i1 false, ptr %13, align 1
  store i1 false, ptr %14, align 1
  br i1 %56, label %69, label %57

57:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #4
  store i1 true, ptr %13, align 1
  %58 = load ptr, ptr %5, align 8, !tbaa !5
  %59 = load ptr, ptr %6, align 8, !tbaa !5
  %60 = load i32, ptr %8, align 4, !tbaa !9
  %61 = sext i32 %60 to i64
  %62 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %59, i64 noundef %61) #4
  %63 = load i32, ptr %62, align 4, !tbaa !9
  %64 = sext i32 %63 to i64
  %65 = load ptr, ptr %7, align 8, !tbaa !5
  %66 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %65) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %12, ptr noundef nonnull align 8 dereferenceable(32) %58, i64 noundef %64, i64 noundef %66)
  store i1 true, ptr %14, align 1
  %67 = load ptr, ptr %7, align 8, !tbaa !5
  %68 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %67) #4
  br label %69

69:                                               ; preds = %57, %51
  %70 = phi i1 [ true, %51 ], [ %68, %57 ]
  %71 = load i1, ptr %14, align 1
  br i1 %71, label %72, label %73

72:                                               ; preds = %69
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  br label %73

73:                                               ; preds = %72, %69
  %74 = load i1, ptr %13, align 1
  br i1 %74, label %75, label %76

75:                                               ; preds = %73
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #4
  br label %76

76:                                               ; preds = %75, %73
  br i1 %70, label %77, label %78

77:                                               ; preds = %76
  store i32 0, ptr %4, align 4
  store i32 1, ptr %15, align 4
  br label %115

78:                                               ; preds = %76
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #4
  %79 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %79, ptr %16, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #4
  %80 = load ptr, ptr %6, align 8, !tbaa !5
  %81 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %80) #4
  %82 = trunc i64 %81 to i32
  store i32 %82, ptr %17, align 4, !tbaa !9
  br label %83

83:                                               ; preds = %110, %78
  %84 = load i32, ptr %16, align 4, !tbaa !9
  %85 = load i32, ptr %17, align 4, !tbaa !9
  %86 = icmp slt i32 %84, %85
  br i1 %86, label %87, label %111

87:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #4
  %88 = load i32, ptr %16, align 4, !tbaa !9
  %89 = load i32, ptr %17, align 4, !tbaa !9
  %90 = load i32, ptr %16, align 4, !tbaa !9
  %91 = sub nsw i32 %89, %90
  %92 = sdiv i32 %91, 2
  %93 = add nsw i32 %88, %92
  store i32 %93, ptr %18, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %19) #4
  %94 = load ptr, ptr %5, align 8, !tbaa !5
  %95 = load ptr, ptr %6, align 8, !tbaa !5
  %96 = load i32, ptr %18, align 4, !tbaa !9
  %97 = sext i32 %96 to i64
  %98 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %95, i64 noundef %97) #4
  %99 = load i32, ptr %98, align 4, !tbaa !9
  %100 = sext i32 %99 to i64
  %101 = load ptr, ptr %7, align 8, !tbaa !5
  %102 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %101) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %19, ptr noundef nonnull align 8 dereferenceable(32) %94, i64 noundef %100, i64 noundef %102)
  %103 = load ptr, ptr %7, align 8, !tbaa !5
  %104 = call noundef zeroext i1 @_ZStleIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %103) #4
  br i1 %104, label %105, label %108

105:                                              ; preds = %87
  %106 = load i32, ptr %18, align 4, !tbaa !9
  %107 = add nsw i32 %106, 1
  store i32 %107, ptr %16, align 4, !tbaa !9
  br label %110

108:                                              ; preds = %87
  %109 = load i32, ptr %18, align 4, !tbaa !9
  store i32 %109, ptr %17, align 4, !tbaa !9
  br label %110

110:                                              ; preds = %108, %105
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #4
  br label %83, !llvm.loop !13

111:                                              ; preds = %83
  %112 = load i32, ptr %17, align 4, !tbaa !9
  %113 = load i32, ptr %8, align 4, !tbaa !9
  %114 = sub nsw i32 %112, %113
  store i32 %114, ptr %4, align 4
  store i32 1, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  br label %115

115:                                              ; preds = %111, %77
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  %116 = load i32, ptr %4, align 4
  ret i32 %116
}

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStltIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStleIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

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


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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 uwtable
define dso_local noundef i32 @_Z11countSubstrRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIiSaIiEES6_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) local_unnamed_addr #2 {
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %8 = trunc i64 %7 to i32
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.04349 = phi i32 [ %.144, %.lr.ph ], [ 0, %3 ]
  %.04548 = phi i32 [ %.146, %.lr.ph ], [ %8, %3 ]
  %10 = sub nsw i32 %.04548, %.04349
  %11 = sdiv i32 %10, 2
  %12 = add nsw i32 %11, %.04349
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #4
  %13 = sext i32 %12 to i64
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %13) #4
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %16, i64 noundef %17)
  %18 = call noundef zeroext i1 @_ZStltIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  %19 = add nsw i32 %12, 1
  %.146 = select i1 %18, i32 %.04548, i32 %12
  %.144 = select i1 %18, i32 %19, i32 %.04349
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  %20 = icmp slt i32 %.144, %.146
  br i1 %20, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.043.lcssa = phi i32 [ 0, %3 ], [ %.144, %.lr.ph ]
  %21 = sext i32 %.043.lcssa to i64
  %22 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %.not = icmp ugt i64 %22, %21
  br i1 %.not, label %.critedge, label %.critedge.thread

.critedge:                                        ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #4
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %21) #4
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %25, i64 noundef %26)
  %27 = call noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  br i1 %27, label %.critedge.thread, label %28

28:                                               ; preds = %.critedge
  %29 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %30 = trunc i64 %29 to i32
  %31 = icmp slt i32 %.043.lcssa, %30
  br i1 %31, label %.lr.ph53, label %._crit_edge54

.lr.ph53:                                         ; preds = %28, %.lr.ph53
  %.03851 = phi i32 [ %.1, %.lr.ph53 ], [ %30, %28 ]
  %.03950 = phi i32 [ %.140, %.lr.ph53 ], [ %.043.lcssa, %28 ]
  %32 = sub nsw i32 %.03851, %.03950
  %33 = sdiv i32 %32, 2
  %34 = add nsw i32 %33, %.03950
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #4
  %35 = sext i32 %34 to i64
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %35) #4
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %6, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %38, i64 noundef %39)
  %40 = call noundef zeroext i1 @_ZStleIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  %41 = add nsw i32 %34, 1
  %.140 = select i1 %40, i32 %41, i32 %.03950
  %.1 = select i1 %40, i32 %.03851, i32 %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #4
  %42 = icmp slt i32 %.140, %.1
  br i1 %42, label %.lr.ph53, label %._crit_edge54, !llvm.loop !11

._crit_edge54:                                    ; preds = %.lr.ph53, %28
  %.038.lcssa = phi i32 [ %30, %28 ], [ %.1, %.lr.ph53 ]
  %43 = sub nsw i32 %.038.lcssa, %.043.lcssa
  br label %.critedge.thread

.critedge.thread:                                 ; preds = %._crit_edge, %.critedge, %._crit_edge54
  %.0 = phi i32 [ %43, %._crit_edge54 ], [ 0, %.critedge ], [ 0, %._crit_edge ]
  ret i32 %.0
}

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStltIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStleIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EESA_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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