; LLVM IR from theck01/offbrand_lib :: src (offbrand_stdlib)

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

; Function Attrs: nounwind uwtable
define dso_local ptr @ob_release(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  store ptr null, ptr %2, align 8
  br label %32

7:                                                ; preds = %1
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.obj_struct, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !9
  %12 = add i32 %11, -1
  store i32 %12, ptr %10, align 8, !tbaa !9
  %13 = icmp ule i32 %12, 0
  br i1 %13, label %14, label %30

14:                                               ; preds = %7
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.obj_struct, ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !12
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %26

20:                                               ; preds = %14
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = load ptr, ptr %21, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.obj_struct, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  call void %24(ptr noundef %25)
  br label %26

26:                                               ; preds = %20, %14
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = load ptr, ptr %27, align 8, !tbaa !5
  call void @free(ptr noundef %28) #2
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  call void @free(ptr noundef %29) #2
  store ptr null, ptr %2, align 8
  br label %32

30:                                               ; preds = %7
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %31, ptr %2, align 8
  br label %32

32:                                               ; preds = %30, %26, %6
  %33 = load ptr, ptr %2, align 8
  ret ptr %33
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

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 "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, !11, i64 0}
!10 = !{!"obj_struct", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, 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
define dso_local noundef ptr @ob_release(ptr noundef %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %13, label %2

2:                                                ; preds = %1
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = load i32, ptr %3, align 8, !tbaa !9
  %5 = add i32 %4, -1
  store i32 %5, ptr %3, align 8, !tbaa !9
  %6 = icmp eq i32 %5, 0
  br i1 %6, label %7, label %13

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %3, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %.not11 = icmp eq ptr %9, null
  br i1 %.not11, label %11, label %10

10:                                               ; preds = %7
  tail call void %9(ptr noundef nonnull %0) #2
  %.pre = load ptr, ptr %0, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %10, %7
  %12 = phi ptr [ %.pre, %10 ], [ %3, %7 ]
  tail call void @free(ptr noundef %12) #2
  tail call void @free(ptr noundef nonnull %0) #2
  br label %13

13:                                               ; preds = %2, %1, %11
  %.0 = phi ptr [ null, %11 ], [ null, %1 ], [ %0, %2 ]
  ret ptr %.0
}

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

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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"obj_struct", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}


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