; LLVM IR from stan-dev/math :: lib/sundials_6.1.1/src/sundials (sundials_memory)

; 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._SUNMemoryHelper = type { ptr, ptr, ptr }
%struct._SUNMemoryHelper_Ops = type { ptr, ptr, ptr, ptr, ptr, ptr }

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

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

; Function Attrs: nounwind uwtable
declare dso_local ptr @SUNMemoryHelper_NewEmpty(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @SUNMemoryHelper_CopyOps(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @SUNMemoryHelper_Clone(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct._SUNMemoryHelper, ptr %5, i32 0, i32 1
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct._SUNMemoryHelper_Ops, ptr %7, i32 0, i32 4
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %30

11:                                               ; preds = %1
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct._SUNMemoryHelper, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %17

16:                                               ; preds = %11
  store ptr null, ptr %2, align 8
  br label %38

17:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct._SUNMemoryHelper, ptr %18, i32 0, i32 2
  %20 = load ptr, ptr %19, align 8, !tbaa !14
  %21 = call ptr @SUNMemoryHelper_NewEmpty(ptr noundef %20)
  store ptr %21, ptr %4, align 8, !tbaa !5
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %28

24:                                               ; preds = %17
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = call i32 @SUNMemoryHelper_CopyOps(ptr noundef %25, ptr noundef %26)
  br label %28

28:                                               ; preds = %24, %17
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %29, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %38

30:                                               ; preds = %1
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct._SUNMemoryHelper, ptr %31, i32 0, i32 1
  %33 = load ptr, ptr %32, align 8, !tbaa !9
  %34 = getelementptr inbounds %struct._SUNMemoryHelper_Ops, ptr %33, i32 0, i32 4
  %35 = load ptr, ptr %34, align 8, !tbaa !11
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = call ptr %35(ptr noundef %36)
  store ptr %37, ptr %2, align 8
  br label %38

38:                                               ; preds = %30, %28, %16
  %39 = load ptr, ptr %2, align 8
  ret ptr %39
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_SUNMemoryHelper", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!12, !6, i64 32}
!12 = !{!"_SUNMemoryHelper_Ops", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!13 = !{!10, !6, i64 0}
!14 = !{!10, !6, 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"

; Function Attrs: nounwind uwtable
declare dso_local ptr @SUNMemoryHelper_NewEmpty(ptr noundef) local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
define dso_local ptr @SUNMemoryHelper_Clone(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 32
  %5 = load ptr, ptr %4, align 8, !tbaa !10
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %15

7:                                                ; preds = %1
  %8 = load ptr, ptr %0, align 8, !tbaa !12
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %9, label %17

9:                                                ; preds = %7
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %12 = tail call ptr @SUNMemoryHelper_NewEmpty(ptr noundef %11)
  %.not12 = icmp eq ptr %12, null
  br i1 %.not12, label %17, label %13

13:                                               ; preds = %9
  %14 = tail call i32 @SUNMemoryHelper_CopyOps(ptr noundef nonnull %0, ptr noundef nonnull %12)
  br label %17

15:                                               ; preds = %1
  %16 = tail call ptr %5(ptr noundef nonnull %0) #1
  br label %17

17:                                               ; preds = %9, %13, %7, %15
  %.0 = phi ptr [ %16, %15 ], [ null, %7 ], [ %12, %13 ], [ null, %9 ]
  ret ptr %.0
}

attributes #0 = { 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 #1 = { 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, !7, i64 8}
!6 = !{!"_SUNMemoryHelper", !7, i64 0, !7, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !7, i64 32}
!11 = !{!"_SUNMemoryHelper_Ops", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !7, i64 16}


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