; 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._SUNMemory = type { ptr, i32, i32 }

; Function Attrs: nounwind uwtable
declare dso_local ptr @SUNMemoryNewEmpty() #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: nounwind
declare void @free(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local ptr @SUNMemoryHelper_Wrap(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %8 = call ptr @SUNMemoryNewEmpty()
  store ptr %8, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct._SUNMemory, ptr %10, i32 0, i32 0
  store ptr %9, ptr %11, align 8, !tbaa !11
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct._SUNMemory, ptr %12, i32 0, i32 2
  store i32 0, ptr %13, align 4, !tbaa !13
  %14 = load i32, ptr %5, align 4, !tbaa !9
  switch i32 %14, label %27 [
    i32 0, label %15
    i32 1, label %18
    i32 2, label %21
    i32 3, label %24
  ]

15:                                               ; preds = %2
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct._SUNMemory, ptr %16, i32 0, i32 1
  store i32 0, ptr %17, align 8, !tbaa !14
  br label %29

18:                                               ; preds = %2
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct._SUNMemory, ptr %19, i32 0, i32 1
  store i32 1, ptr %20, align 8, !tbaa !14
  br label %29

21:                                               ; preds = %2
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct._SUNMemory, ptr %22, i32 0, i32 1
  store i32 2, ptr %23, align 8, !tbaa !14
  br label %29

24:                                               ; preds = %2
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct._SUNMemory, ptr %25, i32 0, i32 1
  store i32 3, ptr %26, align 8, !tbaa !14
  br label %29

27:                                               ; preds = %2
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  call void @free(ptr noundef %28) #3
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %31

29:                                               ; preds = %24, %21, %18, %15
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %30, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %31

31:                                               ; preds = %29, %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %32 = load ptr, ptr %3, align 8
  ret ptr %32
}

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_SUNMemory", !6, i64 0, !10, i64 8, !10, i64 12}
!13 = !{!12, !10, i64 12}
!14 = !{!12, !10, i64 8}


; 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 @SUNMemoryNewEmpty() local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @SUNMemoryHelper_Wrap(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call ptr @SUNMemoryNewEmpty()
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 12
  store i32 0, ptr %4, align 4, !tbaa !11
  switch i32 %1, label %13 [
    i32 0, label %5
    i32 1, label %7
    i32 2, label %9
    i32 3, label %11
  ]

5:                                                ; preds = %2
  %6 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 0, ptr %6, align 8, !tbaa !12
  br label %14

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 1, ptr %8, align 8, !tbaa !12
  br label %14

9:                                                ; preds = %2
  %10 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 2, ptr %10, align 8, !tbaa !12
  br label %14

11:                                               ; preds = %2
  %12 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 3, ptr %12, align 8, !tbaa !12
  br label %14

13:                                               ; preds = %2
  tail call void @free(ptr noundef nonnull %3) #2
  br label %14

14:                                               ; preds = %5, %7, %9, %11, %13
  %.0 = phi ptr [ null, %13 ], [ %3, %11 ], [ %3, %9 ], [ %3, %7 ], [ %3, %5 ]
  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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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, !7, i64 0}
!6 = !{!"_SUNMemory", !7, i64 0, !10, i64 8, !10, i64 12}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 12}
!12 = !{!6, !10, i64 8}


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