; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/SHORT/COOK73/Problem D/D.ll (Z5buildiii)

; 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"

%struct.node = type { %"class.std::vector" }
%"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 }

@tree1 = external dso_local global [262144 x %struct.node], align 16
@tree2 = external dso_local global [262144 x %struct.node], align 16
@a = external dso_local global [131072 x %"class.std::vector"], align 16
@b = external dso_local global [131072 x %"class.std::vector"], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = load i32, ptr %6, align 4, !tbaa !5
  %10 = icmp eq i32 %8, %9
  br i1 %10, label %11, label %24

11:                                               ; preds = %3
  %12 = load i32, ptr %4, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %13
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @a, i64 0, i64 %16
  call void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %14, ptr noundef nonnull align 8 dereferenceable(24) %17)
  %18 = load i32, ptr %4, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %19
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @b, i64 0, i64 %22
  call void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %20, ptr noundef nonnull align 8 dereferenceable(24) %23)
  br label %63

24:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !5
  %27 = add nsw i32 %25, %26
  %28 = ashr i32 %27, 1
  store i32 %28, ptr %7, align 4, !tbaa !5
  %29 = load i32, ptr %4, align 4, !tbaa !5
  %30 = mul nsw i32 2, %29
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef %30, i32 noundef %31, i32 noundef %32)
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = mul nsw i32 2, %33
  %35 = add nsw i32 %34, 1
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  %38 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef %35, i32 noundef %37, i32 noundef %38)
  %39 = load i32, ptr %4, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %40
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = mul nsw i32 2, %42
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %44
  %46 = load i32, ptr %4, align 4, !tbaa !5
  %47 = mul nsw i32 2, %46
  %48 = add nsw i32 %47, 1
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %49
  call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24) %41, ptr noundef nonnull align 8 dereferenceable(24) %45, ptr noundef nonnull align 8 dereferenceable(24) %50)
  %51 = load i32, ptr %4, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %52
  %54 = load i32, ptr %4, align 4, !tbaa !5
  %55 = mul nsw i32 2, %54
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %56
  %58 = load i32, ptr %4, align 4, !tbaa !5
  %59 = mul nsw i32 2, %58
  %60 = add nsw i32 %59, 1
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %61
  call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24) %53, ptr noundef nonnull align 8 dereferenceable(24) %57, ptr noundef nonnull align 8 dereferenceable(24) %62)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %63

63:                                               ; preds = %24, %11
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

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

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 = { 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"}


; 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"

%struct.node = type { %"class.std::vector" }
%"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 }

@tree1 = external dso_local global [262144 x %struct.node], align 16
@tree2 = external dso_local global [262144 x %struct.node], align 16
@a = external dso_local global [131072 x %"class.std::vector"], align 16
@b = external dso_local global [131072 x %"class.std::vector"], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %1, %2
  br i1 %4, label %common.ret, label %11

common.ret:                                       ; preds = %3
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %5
  %7 = sext i32 %1 to i64
  %8 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @a, i64 0, i64 %7
  tail call void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 8 dereferenceable(24) %8)
  %9 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %5
  %10 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @b, i64 0, i64 %7
  tail call void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull align 8 dereferenceable(24) %10)
  br label %common.ret21

common.ret21:                                     ; preds = %11, %common.ret
  ret void

11:                                               ; preds = %3
  %12 = add nsw i32 %2, %1
  %13 = ashr i32 %12, 1
  %14 = shl nsw i32 %0, 1
  tail call void @_Z5buildiii(i32 noundef %14, i32 noundef %1, i32 noundef %13)
  %15 = or disjoint i32 %14, 1
  %16 = add nsw i32 %13, 1
  tail call void @_Z5buildiii(i32 noundef %15, i32 noundef %16, i32 noundef %2)
  %17 = sext i32 %0 to i64
  %18 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %17
  %19 = sext i32 %14 to i64
  %20 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %19
  %21 = sext i32 %15 to i64
  %22 = getelementptr inbounds [262144 x %struct.node], ptr @tree1, i64 0, i64 %21
  tail call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24) %18, ptr noundef nonnull align 8 dereferenceable(24) %20, ptr noundef nonnull align 8 dereferenceable(24) %22)
  %23 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %17
  %24 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %19
  %25 = getelementptr inbounds [262144 x %struct.node], ptr @tree2, i64 0, i64 %21
  tail call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24) %23, ptr noundef nonnull align 8 dereferenceable(24) %24, ptr noundef nonnull align 8 dereferenceable(24) %25)
  br label %common.ret21
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node6assignERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) 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" }

!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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass