; LLVM IR from Tunghohin/Competitive_Coding :: Codeforces (cf1714_D)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"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] }

@res = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z7get_nexiRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIS4_SaIS4_EE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"class.std::__cxx11::basic_string", align 8
  %15 = alloca i1, align 1
  %16 = alloca i1, align 1
  %17 = alloca %"struct.std::pair", align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 -1, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 -1, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  store i32 -1, ptr %10, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %117, %3
  %22 = load i32, ptr %11, align 4, !tbaa !5
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  %25 = icmp sle i32 %22, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %21
  store i32 2, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %120

27:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !5
  br label %28

28:                                               ; preds = %113, %27
  %29 = load i32, ptr %13, align 4, !tbaa !5
  %30 = load ptr, ptr %6, align 8, !tbaa !9
  %31 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %30) #4
  %32 = trunc i64 %31 to i32
  %33 = icmp slt i32 %29, %32
  br i1 %33, label %35, label %34

34:                                               ; preds = %28
  store i32 5, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %116

35:                                               ; preds = %28
  %36 = load i32, ptr %11, align 4, !tbaa !5
  %37 = load ptr, ptr %6, align 8, !tbaa !9
  %38 = load i32, ptr %13, align 4, !tbaa !5
  %39 = sext i32 %38 to i64
  %40 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %37, i64 noundef %39) #4
  %41 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %40) #4
  %42 = trunc i64 %41 to i32
  %43 = add nsw i32 %36, %42
  %44 = sub nsw i32 %43, 1
  %45 = load i32, ptr %7, align 4, !tbaa !5
  %46 = icmp sgt i32 %44, %45
  store i1 false, ptr %15, align 1
  store i1 false, ptr %16, align 1
  br i1 %46, label %47, label %87

47:                                               ; preds = %35
  %48 = load i32, ptr %11, align 4, !tbaa !5
  %49 = load ptr, ptr %6, align 8, !tbaa !9
  %50 = load i32, ptr %13, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %49, i64 noundef %51) #4
  %53 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %52) #4
  %54 = trunc i64 %53 to i32
  %55 = add nsw i32 %48, %54
  %56 = sub nsw i32 %55, 1
  %57 = load i32, ptr %4, align 4, !tbaa !5
  %58 = icmp sgt i32 %56, %57
  br i1 %58, label %59, label %87

59:                                               ; preds = %47
  %60 = load i32, ptr %11, align 4, !tbaa !5
  %61 = load ptr, ptr %6, align 8, !tbaa !9
  %62 = load i32, ptr %13, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %61, i64 noundef %63) #4
  %65 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %64) #4
  %66 = trunc i64 %65 to i32
  %67 = add nsw i32 %60, %66
  %68 = sub nsw i32 %67, 1
  %69 = sext i32 %68 to i64
  %70 = load ptr, ptr %5, align 8, !tbaa !9
  %71 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %70) #4
  %72 = icmp ult i64 %69, %71
  br i1 %72, label %73, label %87

73:                                               ; preds = %59
  %74 = load ptr, ptr %6, align 8, !tbaa !9
  %75 = load i32, ptr %13, align 4, !tbaa !5
  %76 = sext i32 %75 to i64
  %77 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %74, i64 noundef %76) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr %14) #4
  store i1 true, ptr %15, align 1
  %78 = load ptr, ptr %5, align 8, !tbaa !9
  %79 = load i32, ptr %11, align 4, !tbaa !5
  %80 = sext i32 %79 to i64
  %81 = load ptr, ptr %6, align 8, !tbaa !9
  %82 = load i32, ptr %13, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %81, i64 noundef %83) #4
  %85 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %84) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %14, ptr noundef nonnull align 8 dereferenceable(32) %78, i64 noundef %80, i64 noundef %85)
  store i1 true, ptr %16, align 1
  %86 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %77, ptr noundef nonnull align 8 dereferenceable(32) %14) #4
  br label %87

87:                                               ; preds = %73, %59, %47, %35
  %88 = phi i1 [ false, %59 ], [ false, %47 ], [ false, %35 ], [ %86, %73 ]
  %89 = load i1, ptr %16, align 1
  br i1 %89, label %90, label %91

90:                                               ; preds = %87
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #4
  br label %91

91:                                               ; preds = %90, %87
  %92 = load i1, ptr %15, align 1
  br i1 %92, label %93, label %94

93:                                               ; preds = %91
  call void @llvm.lifetime.end.p0(i64 32, ptr %14) #4
  br label %94

94:                                               ; preds = %93, %91
  br i1 %88, label %95, label %112

95:                                               ; preds = %94
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #4
  %96 = load i32, ptr %13, align 4, !tbaa !5
  %97 = add nsw i32 %96, 1
  store i32 %97, ptr %18, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #4
  %98 = load i32, ptr %11, align 4, !tbaa !5
  %99 = add nsw i32 %98, 1
  store i32 %99, ptr %19, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %17, ptr noundef nonnull align 4 dereferenceable(4) %18, ptr noundef nonnull align 4 dereferenceable(4) %19)
  %100 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(8) %17) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #4
  %101 = load i32, ptr %11, align 4, !tbaa !5
  %102 = load ptr, ptr %6, align 8, !tbaa !9
  %103 = load i32, ptr %13, align 4, !tbaa !5
  %104 = sext i32 %103 to i64
  %105 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %102, i64 noundef %104) #4
  %106 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %105) #4
  %107 = trunc i64 %106 to i32
  %108 = add nsw i32 %101, %107
  %109 = sub nsw i32 %108, 1
  store i32 %109, ptr %20, align 4, !tbaa !5
  %110 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %20)
  %111 = load i32, ptr %110, align 4, !tbaa !5
  store i32 %111, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #4
  br label %112

112:                                              ; preds = %95, %94
  br label %113

113:                                              ; preds = %112
  %114 = load i32, ptr %13, align 4, !tbaa !5
  %115 = add nsw i32 %114, 1
  store i32 %115, ptr %13, align 4, !tbaa !5
  br label %28, !llvm.loop !11

116:                                              ; preds = %34
  br label %117

117:                                              ; preds = %116
  %118 = load i32, ptr %11, align 4, !tbaa !5
  %119 = add nsw i32 %118, 1
  store i32 %119, ptr %11, align 4, !tbaa !5
  br label %21, !llvm.loop !13

120:                                              ; preds = %26
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @res, ptr noundef nonnull align 4 dereferenceable(8) %8)
  %121 = load i32, ptr %7, align 4, !tbaa !5
  store i32 1, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret i32 %121
}

; 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 dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; 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) #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #0 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 = { 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 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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"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] }

@res = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z7get_nexiRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIS4_SaIS4_EE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) local_unnamed_addr #0 {
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::pair", align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"struct.std::pair", align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 -1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  store i32 -1, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  store i32 -1, ptr %7, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %5, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  %.not34 = icmp slt i32 %0, -1
  br i1 %.not34, label %._crit_edge36, label %.preheader.preheader

.preheader.preheader:                             ; preds = %3
  %13 = add i32 %0, 2
  %wide.trip.count = zext i32 %13 to i64
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %._crit_edge
  %indvars.iv38 = phi i64 [ 0, %.preheader.preheader ], [ %indvars.iv.next39.pre-phi, %._crit_edge ]
  %14 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  %15 = trunc i64 %14 to i32
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %.preheader.._crit_edge_crit_edge

.preheader.._crit_edge_crit_edge:                 ; preds = %.preheader
  %.pre = add nuw nsw i64 %indvars.iv38, 1
  br label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %indvars40 = trunc i64 %indvars.iv38 to i32
  %17 = add nsw i32 %indvars40, -1
  %18 = add nuw nsw i64 %indvars.iv38, 1
  %19 = trunc i64 %indvars.iv38 to i32
  %20 = add i32 %19, -1
  %21 = trunc nuw i64 %18 to i32
  br label %23

._crit_edge36:                                    ; preds = %._crit_edge, %3
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @res, ptr noundef nonnull align 4 dereferenceable(8) %5)
  %22 = load i32, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  ret i32 %22

._crit_edge:                                      ; preds = %.critedge.thread, %.preheader.._crit_edge_crit_edge
  %indvars.iv.next39.pre-phi = phi i64 [ %.pre, %.preheader.._crit_edge_crit_edge ], [ %18, %.critedge.thread ]
  %exitcond = icmp eq i64 %indvars.iv.next39.pre-phi, %wide.trip.count
  br i1 %exitcond, label %._crit_edge36, label %.preheader, !llvm.loop !9

23:                                               ; preds = %.lr.ph, %.critedge.thread
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %.critedge.thread ]
  %24 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  %25 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %24) #4
  %26 = trunc i64 %25 to i32
  %27 = add i32 %17, %26
  %28 = load i32, ptr %4, align 4, !tbaa !5
  %29 = icmp sgt i32 %27, %28
  br i1 %29, label %30, label %.critedge.thread

30:                                               ; preds = %23
  %31 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %31) #4
  %33 = trunc i64 %32 to i32
  %34 = add i32 %17, %33
  %35 = icmp sgt i32 %34, %0
  br i1 %35, label %36, label %.critedge.thread

36:                                               ; preds = %30
  %37 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  %38 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %37) #4
  %39 = trunc i64 %38 to i32
  %40 = add i32 %20, %39
  %41 = sext i32 %40 to i64
  %42 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  %43 = icmp ugt i64 %42, %41
  br i1 %43, label %.critedge, label %.critedge.thread

.critedge:                                        ; preds = %36
  %44 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #4
  %45 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  %46 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %45) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv38, i64 noundef %46)
  %47 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %44, ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #4
  br i1 %47, label %48, label %.critedge.thread

48:                                               ; preds = %.critedge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #4
  %49 = trunc i64 %indvars.iv to i32
  %50 = add i32 %49, 1
  store i32 %50, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #4
  store i32 %21, ptr %11, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %9, ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %51 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %5, ptr noundef nonnull align 4 dereferenceable(8) %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %12) #4
  %52 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #4
  %53 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %52) #4
  %54 = trunc i64 %53 to i32
  %55 = add i32 %20, %54
  store i32 %55, ptr %12, align 4, !tbaa !5
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %12)
  %57 = load i32, ptr %56, align 4, !tbaa !5
  store i32 %57, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %12) #4
  br label %.critedge.thread

.critedge.thread:                                 ; preds = %36, %30, %23, %.critedge, %48
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %58 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  %sext = shl i64 %58, 32
  %59 = ashr exact i64 %sext, 32
  %60 = icmp slt i64 %indvars.iv.next, %59
  br i1 %60, label %23, label %._crit_edge, !llvm.loop !11
}

; 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 dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) 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: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; 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 #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 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 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 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,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass