; LLVM IR from Lakhankumawat/LearnCPP :: T-Tree/G-GenricTree/MinimumDistanceBetweenNodeGT.ll (Z18distancebetwennodeP4nodeii)

; 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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 }

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

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 uwtable
declare dso_local void @_Z10nodetopathP4nodei(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8, ptr noundef, i32 noundef) #1

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z18distancebetwennodeP4nodeii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector.0", align 8
  %8 = alloca %"class.std::vector.0", align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #3
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i32, ptr %5, align 4, !tbaa !9
  call void @_Z10nodetopathP4nodei(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8 %7, ptr noundef %13, i32 noundef %14)
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #3
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = load i32, ptr %6, align 4, !tbaa !9
  invoke void @_Z10nodetopathP4nodei(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8 %8, ptr noundef %15, i32 noundef %16)
          to label %17 unwind label %47

17:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %18 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  %19 = sub i64 %18, 1
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %21 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #3
  %22 = sub i64 %21, 1
  %23 = trunc i64 %22 to i32
  store i32 %23, ptr %12, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %42, %17
  %25 = load i32, ptr %11, align 4, !tbaa !9
  %26 = icmp sge i32 %25, 0
  br i1 %26, label %27, label %40

27:                                               ; preds = %24
  %28 = load i32, ptr %12, align 4, !tbaa !9
  %29 = icmp sge i32 %28, 0
  br i1 %29, label %30, label %40

30:                                               ; preds = %27
  %31 = load i32, ptr %11, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %32) #3
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = load i32, ptr %12, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %36) #3
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = icmp eq i32 %34, %38
  br label %40

40:                                               ; preds = %30, %27, %24
  %41 = phi i1 [ false, %27 ], [ false, %24 ], [ %39, %30 ]
  br i1 %41, label %42, label %51

42:                                               ; preds = %40
  %43 = load i32, ptr %11, align 4, !tbaa !9
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %11, align 4, !tbaa !9
  %45 = load i32, ptr %12, align 4, !tbaa !9
  %46 = add nsw i32 %45, -1
  store i32 %46, ptr %12, align 4, !tbaa !9
  br label %24, !llvm.loop !11

47:                                               ; preds = %3
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %9, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  br label %59

51:                                               ; preds = %40
  %52 = load i32, ptr %11, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %11, align 4, !tbaa !9
  %54 = load i32, ptr %12, align 4, !tbaa !9
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %12, align 4, !tbaa !9
  %56 = load i32, ptr %11, align 4, !tbaa !9
  %57 = load i32, ptr %12, align 4, !tbaa !9
  %58 = add nsw i32 %56, %57
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  ret i32 %58

59:                                               ; preds = %47
  %60 = load ptr, ptr %9, align 8
  %61 = load i32, ptr %10, align 4
  %62 = insertvalue { ptr, i32 } poison, ptr %60, 0
  %63 = insertvalue { ptr, i32 } %62, i32 %61, 1
  resume { ptr, i32 } %63
}

; 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) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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"}


; 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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 }

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

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 uwtable
declare dso_local void @_Z10nodetopathP4nodei(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8, ptr noundef, i32 noundef) local_unnamed_addr #1

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z18distancebetwennodeP4nodeii(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca %"class.std::vector.0", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #3
  call void @_Z10nodetopathP4nodei(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.0") align 8 %4, ptr noundef %0, i32 noundef %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #3
  invoke void @_Z10nodetopathP4nodei(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.0") align 8 %5, ptr noundef %0, i32 noundef %2)
          to label %6 unwind label %24

6:                                                ; preds = %3
  %7 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  %8 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  %9 = and i64 %7, 4294967295
  %10 = and i64 %8, 4294967295
  br label %11

11:                                               ; preds = %16, %6
  %indvars.iv17 = phi i64 [ %indvars.iv.next18, %16 ], [ %10, %6 ]
  %indvars.iv = phi i64 [ %indvars.iv.next, %16 ], [ %9, %6 ]
  %indvars.iv.next18 = add nsw i64 %indvars.iv17, -1
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %12 = and i64 %indvars.iv.next, 2147483648
  %13 = icmp eq i64 %12, 0
  %14 = and i64 %indvars.iv.next18, 2147483648
  %15 = icmp eq i64 %14, 0
  %or.cond = select i1 %13, i1 %15, i1 false
  br i1 %or.cond, label %16, label %.critedge

16:                                               ; preds = %11
  %17 = and i64 %indvars.iv.next, 2147483647
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %17) #3
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = and i64 %indvars.iv.next18, 2147483647
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %20) #3
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = icmp eq i32 %19, %22
  br i1 %23, label %11, label %.critedge, !llvm.loop !9

24:                                               ; preds = %3
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  resume { ptr, i32 } %25

.critedge:                                        ; preds = %11, %16
  %26 = trunc nuw i64 %indvars.iv17 to i32
  %27 = trunc nuw i64 %indvars.iv to i32
  %28 = add nsw i32 %26, %27
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  ret i32 %28
}

; 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 #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass