; LLVM IR from chkn/logdb :: src (logdb_iter)

; 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.logdb_iter_t = type { ptr, %struct.logdb_lease_t, %struct.logdb_data_header_t, ptr, ptr }
%struct.logdb_lease_t = type { ptr, i32, i64, i32, i32 }
%struct.logdb_data_header_t = type { i32, i32 }

; 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

declare void @logdb_lease_release(ptr noundef) #1

declare void @logdb_buffer_free(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @logdb_iter_free(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %4, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.logdb_iter_t, ptr %5, i32 0, i32 3
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %13

9:                                                ; preds = %1
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.logdb_iter_t, ptr %10, i32 0, i32 3
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  call void @logdb_buffer_free(ptr noundef %12)
  br label %13

13:                                               ; preds = %9, %1
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.logdb_iter_t, ptr %14, i32 0, i32 4
  %16 = load ptr, ptr %15, align 8, !tbaa !15
  %17 = icmp ne ptr %16, null
  br i1 %17, label %18, label %22

18:                                               ; preds = %13
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.logdb_iter_t, ptr %19, i32 0, i32 4
  %21 = load ptr, ptr %20, align 8, !tbaa !15
  call void @logdb_buffer_free(ptr noundef %21)
  br label %22

22:                                               ; preds = %18, %13
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.logdb_iter_t, ptr %23, i32 0, i32 1
  %25 = getelementptr inbounds %struct.logdb_lease_t, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !16
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %31

28:                                               ; preds = %22
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.logdb_iter_t, ptr %29, i32 0, i32 1
  call void @logdb_lease_release(ptr noundef %30)
  br label %31

31:                                               ; preds = %28, %22
  %32 = load ptr, ptr %3, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.logdb_iter_t, ptr %32, i32 0, i32 0
  store ptr null, ptr %33, align 8, !tbaa !17
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %34) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 "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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 48}
!10 = !{!"", !6, i64 0, !11, i64 8, !14, i64 40, !6, i64 48, !6, i64 56}
!11 = !{!"", !6, i64 0, !12, i64 8, !13, i64 16, !12, i64 24, !12, i64 28}
!12 = !{!"int", !7, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!"", !12, i64 0, !12, i64 4}
!15 = !{!10, !6, i64 56}
!16 = !{!10, !6, i64 8}
!17 = !{!10, !6, i64 0}


; 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"

declare void @logdb_lease_release(ptr noundef) local_unnamed_addr #0

declare void @logdb_buffer_free(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @logdb_iter_free(ptr noundef %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 48
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @logdb_buffer_free(ptr noundef nonnull %3) #3
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 56
  %7 = load ptr, ptr %6, align 8, !tbaa !14
  %.not10 = icmp eq ptr %7, null
  br i1 %.not10, label %9, label %8

8:                                                ; preds = %5
  tail call void @logdb_buffer_free(ptr noundef nonnull %7) #3
  br label %9

9:                                                ; preds = %8, %5
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !15
  %.not11 = icmp eq ptr %11, null
  br i1 %.not11, label %13, label %12

12:                                               ; preds = %9
  tail call void @logdb_lease_release(ptr noundef nonnull %10) #3
  br label %13

13:                                               ; preds = %12, %9
  tail call void @free(ptr noundef nonnull %0) #3
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #2

attributes #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 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 = { 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 #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, !7, i64 48}
!6 = !{!"", !7, i64 0, !10, i64 8, !13, i64 40, !7, i64 48, !7, i64 56}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"", !7, i64 0, !11, i64 8, !12, i64 16, !11, i64 24, !11, i64 28}
!11 = !{!"int", !8, i64 0}
!12 = !{!"long", !8, i64 0}
!13 = !{!"", !11, i64 0, !11, i64 4}
!14 = !{!6, !7, i64 56}
!15 = !{!6, !7, i64 8}


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