; LLVM IR from int32bit/leetcode :: algorithms/CopyListwithRandomPointer (solve)

; 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.Solution = type { i8 }
%struct.RandomListNode = type { i32, ptr, ptr }

@__const.main.a = external hidden unnamed_addr constant [2 x i32], align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printP14RandomListNode(ptr noundef) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z7mk_listPP14RandomListNodePii(ptr noundef, ptr noundef, i32 noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca %class.Solution, align 1
  %7 = alloca ptr, align 8
  %8 = alloca [2 x i32], align 4
  %9 = alloca ptr, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %8, ptr align 4 @__const.main.a, i64 8, i1 false)
  %10 = getelementptr inbounds [2 x i32], ptr %8, i64 0, i64 0
  %11 = call noundef ptr @_Z7mk_listPP14RandomListNodePii(ptr noundef %7, ptr noundef %10, i32 noundef 2)
  %12 = load ptr, ptr %7, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.RandomListNode, ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = load ptr, ptr %7, align 8, !tbaa !9
  %16 = getelementptr inbounds %struct.RandomListNode, ptr %15, i32 0, i32 2
  store ptr %14, ptr %16, align 8, !tbaa !13
  %17 = load ptr, ptr %7, align 8, !tbaa !9
  %18 = load ptr, ptr %7, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.RandomListNode, ptr %18, i32 0, i32 1
  %20 = load ptr, ptr %19, align 8, !tbaa !11
  %21 = getelementptr inbounds %struct.RandomListNode, ptr %20, i32 0, i32 2
  store ptr %17, ptr %21, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %22 = load ptr, ptr %7, align 8, !tbaa !9
  %23 = call noundef ptr @_ZN8Solution14copyRandomListEP14RandomListNode(ptr noundef nonnull align 1 dereferenceable(1) %6, ptr noundef %22)
  store ptr %23, ptr %9, align 8, !tbaa !9
  %24 = load ptr, ptr %9, align 8, !tbaa !9
  call void @_Z5printP14RandomListNode(ptr noundef %24)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #4
  ret i32 0
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN8Solution14copyRandomListEP14RandomListNode(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #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 norecurse 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!12, !10, i64 8}
!12 = !{!"_ZTS14RandomListNode", !6, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 16}


; 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.Solution = type { i8 }

@__const.main.a = external hidden unnamed_addr constant [2 x i32], align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printP14RandomListNode(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z7mk_listPP14RandomListNodePii(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #2 {
  %3 = alloca %class.Solution, align 1
  %4 = alloca ptr, align 8
  %5 = alloca [2 x i32], align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %6 = load i64, ptr @__const.main.a, align 4
  store i64 %6, ptr %5, align 8
  %7 = call noundef ptr @_Z7mk_listPP14RandomListNodePii(ptr noundef nonnull %4, ptr noundef nonnull %5, i32 noundef 2)
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %8, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds i8, ptr %8, i64 16
  store ptr %10, ptr %11, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %10, i64 16
  store ptr %8, ptr %12, align 8, !tbaa !12
  %13 = call noundef ptr @_ZN8Solution14copyRandomListEP14RandomListNode(ptr noundef nonnull align 1 dereferenceable(1) %3, ptr noundef %8)
  call void @_Z5printP14RandomListNode(ptr noundef %13)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN8Solution14copyRandomListEP14RandomListNode(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) 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 norecurse 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, !6, i64 8}
!10 = !{!"_ZTS14RandomListNode", !11, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass