; LLVM IR from mguinhos/Collector :: src/lib.ll_collector (del)

; 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.Collector = type { ptr, ptr, i64, 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
define dso_local zeroext i1 @collector__del(ptr noundef %0) #1 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  store i1 false, ptr %2, align 1
  br label %43

9:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %10, ptr %4, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %40, %9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %42

14:                                               ; preds = %11
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.Collector, ptr %15, i32 0, i32 0
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  store ptr %17, ptr %5, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.Collector, ptr %18, i32 0, i32 3
  %20 = load ptr, ptr %19, align 8, !tbaa !12
  %21 = icmp ne ptr %20, null
  br i1 %21, label %22, label %38

22:                                               ; preds = %14
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.Collector, ptr %23, i32 0, i32 4
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = icmp ne ptr %25, null
  br i1 %26, label %27, label %34

27:                                               ; preds = %22
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.Collector, ptr %28, i32 0, i32 4
  %30 = load ptr, ptr %29, align 8, !tbaa !13
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.Collector, ptr %31, i32 0, i32 3
  %33 = load ptr, ptr %32, align 8, !tbaa !12
  call void %30(ptr noundef %33)
  br label %34

34:                                               ; preds = %27, %22
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.Collector, ptr %35, i32 0, i32 3
  %37 = load ptr, ptr %36, align 8, !tbaa !12
  call void @free(ptr noundef %37) #3
  br label %38

38:                                               ; preds = %34, %14
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  call void @free(ptr noundef %39) #3
  br label %40

40:                                               ; preds = %38
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %41, ptr %4, align 8, !tbaa !5
  br label %11, !llvm.loop !14

42:                                               ; preds = %11
  store i1 true, ptr %2, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %43

43:                                               ; preds = %42, %8
  %44 = load i1, ptr %2, align 1
  ret i1 %44
}

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

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 "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, !6, i64 0}
!10 = !{!"Collector", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24, !6, i64 32}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !6, i64 24}
!13 = !{!10, !6, i64 32}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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 zeroext i1 @collector__del(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp ne ptr %0, null
  br i1 %2, label %.preheader, label %.loopexit

.preheader:                                       ; preds = %1, %12
  %.01218 = phi ptr [ %3, %12 ], [ %0, %1 ]
  %3 = load ptr, ptr %.01218, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %.01218, i64 24
  %5 = load ptr, ptr %4, align 8, !tbaa !11
  %.not16 = icmp eq ptr %5, null
  br i1 %.not16, label %12, label %6

6:                                                ; preds = %.preheader
  %7 = getelementptr inbounds i8, ptr %.01218, i64 32
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %.not17 = icmp eq ptr %8, null
  br i1 %.not17, label %10, label %9

9:                                                ; preds = %6
  tail call void %8(ptr noundef nonnull %5) #2
  %.pre = load ptr, ptr %4, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %9, %6
  %11 = phi ptr [ %.pre, %9 ], [ %5, %6 ]
  tail call void @free(ptr noundef %11) #2
  br label %12

12:                                               ; preds = %10, %.preheader
  tail call void @free(ptr noundef nonnull %.01218) #2
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %.loopexit, label %.preheader, !llvm.loop !13

.loopexit:                                        ; preds = %12, %1
  ret i1 %2
}

; 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, !7, i64 0}
!6 = !{!"Collector", !7, i64 0, !7, i64 8, !10, i64 16, !7, i64 24, !7, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 24}
!12 = !{!6, !7, i64 32}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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