; LLVM IR from brpapa/algorithms :: notebook/dynamic-programming/lis.ll (Z4lis0v)

; 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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@A = external dso_local global %"class.std::vector", align 8
@N = external dso_local global i32, align 4
@_ZL3INF = external hidden constant i32, align 4

; 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 void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 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) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z4lis0v() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr %1) #5
  %14 = load i32, ptr @N, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %15, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %16 unwind label %27

16:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #5
  %17 = load i32, ptr @N, align 4, !tbaa !5
  %18 = add nsw i32 %17, 1
  %19 = sext i32 %18 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %19, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3INF, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %20 unwind label %31

20:                                               ; preds = %16
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef 0) #5
  store i32 -1073741824, ptr %21, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %83, %20
  %23 = load i32, ptr %8, align 4, !tbaa !5
  %24 = load i32, ptr @N, align 4, !tbaa !5
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %35, label %26

26:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %91

27:                                               ; preds = %0
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %3, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %4, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #5
  br label %94

31:                                               ; preds = %16
  %32 = landingpad { ptr, i32 }
          cleanup
  %33 = extractvalue { ptr, i32 } %32, 0
  store ptr %33, ptr %3, align 8
  %34 = extractvalue { ptr, i32 } %32, 1
  store i32 %34, ptr %4, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  br label %93

35:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %36 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  %37 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %36, ptr %37, align 8
  %38 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  %39 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %38, ptr %39, align 8
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %41) #5
  %43 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %44 = load ptr, ptr %43, align 8
  %45 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %46 = load ptr, ptr %45, align 8
  %47 = invoke ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_(ptr %44, ptr %46, ptr noundef nonnull align 4 dereferenceable(4) %42)
          to label %48 unwind label %71

48:                                               ; preds = %35
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %47, ptr %49, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  %50 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  %51 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  %52 = call noundef i64 @_ZN9__gnu_cxxmiIPiSt6vectorIiSaIiEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %13) #5
  %53 = trunc i64 %52 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  store i32 %53, ptr %9, align 4, !tbaa !5
  %54 = load i32, ptr %8, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %55) #5
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %58 = load i32, ptr %9, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %59) #5
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = icmp slt i32 %57, %61
  br i1 %62, label %63, label %75

63:                                               ; preds = %48
  %64 = load i32, ptr %8, align 4, !tbaa !5
  %65 = sext i32 %64 to i64
  %66 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %65) #5
  %67 = load i32, ptr %66, align 4, !tbaa !5
  %68 = load i32, ptr %9, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %69) #5
  store i32 %67, ptr %70, align 4, !tbaa !5
  br label %75

71:                                               ; preds = %35
  %72 = landingpad { ptr, i32 }
          cleanup
  %73 = extractvalue { ptr, i32 } %72, 0
  store ptr %73, ptr %3, align 8
  %74 = extractvalue { ptr, i32 } %72, 1
  store i32 %74, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %90

75:                                               ; preds = %63, %48
  %76 = load i32, ptr %9, align 4, !tbaa !5
  %77 = load i32, ptr %8, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %78) #5
  store i32 %76, ptr %79, align 4, !tbaa !5
  %80 = invoke 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) %9)
          to label %81 unwind label %86

81:                                               ; preds = %75
  %82 = load i32, ptr %80, align 4, !tbaa !5
  store i32 %82, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %83

83:                                               ; preds = %81
  %84 = load i32, ptr %8, align 4, !tbaa !5
  %85 = add nsw i32 %84, 1
  store i32 %85, ptr %8, align 4, !tbaa !5
  br label %22, !llvm.loop !9

86:                                               ; preds = %75
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %3, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %4, align 4
  br label %90

90:                                               ; preds = %86, %71
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  br label %93

91:                                               ; preds = %26
  %92 = load i32, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #5
  ret i32 %92

93:                                               ; preds = %90, %31
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  br label %94

94:                                               ; preds = %93, %27
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #5
  br label %95

95:                                               ; preds = %94
  %96 = load ptr, ptr %3, align 8
  %97 = load i32, ptr %4, align 4
  %98 = insertvalue { ptr, i32 } poison, ptr %96, 0
  %99 = insertvalue { ptr, i32 } %98, i32 %97, 1
  resume { ptr, i32 } %99
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPiSt6vectorIiSaIiEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(4)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 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 nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@A = external dso_local global %"class.std::vector", align 8
@N = external dso_local local_unnamed_addr global i32, align 4
@_ZL3INF = external hidden constant i32, align 4

; 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 void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 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) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z4lis0v() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #5
  %9 = load i32, ptr @N, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %10, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %11 unwind label %20

11:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #5
  %12 = load i32, ptr @N, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  %14 = sext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %14, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3INF, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %15 unwind label %22

15:                                               ; preds = %11
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #5
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #5
  store i32 -1073741824, ptr %16, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  %17 = load i32, ptr @N, align 4, !tbaa !5
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %47, %15
  %19 = phi i32 [ 0, %15 ], [ %51, %47 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #5
  ret i32 %19

20:                                               ; preds = %0
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  br label %56

22:                                               ; preds = %11
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #5
  br label %55

.lr.ph:                                           ; preds = %15, %47
  %indvars.iv = phi i64 [ %indvars.iv.next, %47 ], [ 0, %15 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %24 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %25 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %indvars.iv) #5
  %27 = invoke ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_(ptr %24, ptr %25, ptr noundef nonnull align 4 dereferenceable(4) %26)
          to label %28 unwind label %45

28:                                               ; preds = %.lr.ph
  store ptr %27, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %29 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  store ptr %29, ptr %8, align 8
  %30 = call noundef i64 @_ZN9__gnu_cxxmiIPiSt6vectorIiSaIiEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  %31 = trunc i64 %30 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  store i32 %31, ptr %6, align 4, !tbaa !5
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %indvars.iv) #5
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = load i32, ptr %6, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %35) #5
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = icmp slt i32 %33, %37
  br i1 %38, label %39, label %47

39:                                               ; preds = %28
  %40 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @A, i64 noundef %indvars.iv) #5
  %41 = load i32, ptr %40, align 4, !tbaa !5
  %42 = load i32, ptr %6, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %44 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %43) #5
  store i32 %41, ptr %44, align 4, !tbaa !5
  br label %47

45:                                               ; preds = %.lr.ph
  %46 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  br label %55

47:                                               ; preds = %39, %28
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #5
  store i32 %48, ptr %49, align 4, !tbaa !5
  %50 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %51 = load i32, ptr %50, align 4, !tbaa !5
  store i32 %51, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %52 = load i32, ptr @N, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = icmp slt i64 %indvars.iv.next, %53
  br i1 %54, label %.lr.ph, label %._crit_edge, !llvm.loop !9

55:                                               ; preds = %45, %22
  %.pn = phi { ptr, i32 } [ %46, %45 ], [ %23, %22 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  br label %56

56:                                               ; preds = %55, %20
  %.pn.pn = phi { ptr, i32 } [ %.pn, %55 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(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 i64 @_ZN9__gnu_cxxmiIPiSt6vectorIiSaIiEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 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 nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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