; LLVM IR from Deborah-Digges/mark-sweep-simulation :: 01-marksweep-simple/tests.ll (Z18testCollectsCyclesv)

; 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.Object = type { i32, i32, ptr, %union.anon }
%union.anon = type { %struct.anon }
%struct.anon = type { ptr, ptr }

@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6assertiPKc(i32 noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

declare void @_ZN2VMC1Eii(ptr noundef nonnull align 8 dereferenceable(180), i32 noundef, i32 noundef) unnamed_addr #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #4

declare noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180), i32 noundef) #3

declare noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180)) #3

declare void @_ZN2VM2gcEv(ptr noundef nonnull align 8 dereferenceable(180)) #3

; Function Attrs: nounwind
declare void @_ZN2VMD1Ev(ptr noundef nonnull align 8 dereferenceable(180)) unnamed_addr #5

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef ptr @_ZN2VM3popEv(ptr noundef nonnull align 8 dereferenceable(180)) #3

declare noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180)) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18testCollectsCyclesv() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #6
  %6 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 184) #7
  invoke void @_ZN2VMC1Eii(ptr noundef nonnull align 8 dereferenceable(180) %6, i32 noundef 10, i32 noundef 100)
          to label %7 unwind label %45

7:                                                ; preds = %0
  store ptr %6, ptr %1, align 8, !tbaa !5
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %8, i32 noundef 1)
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %10, i32 noundef 2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %12 = load ptr, ptr %1, align 8, !tbaa !5
  %13 = call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %12)
  store ptr %13, ptr %4, align 8, !tbaa !5
  %14 = load ptr, ptr %1, align 8, !tbaa !5
  %15 = call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %14, i32 noundef 3)
  %16 = load ptr, ptr %1, align 8, !tbaa !5
  %17 = call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %16, i32 noundef 4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %18 = load ptr, ptr %1, align 8, !tbaa !5
  %19 = call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %18)
  store ptr %19, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.Object, ptr %21, i32 0, i32 3
  %23 = getelementptr inbounds %struct.anon, ptr %22, i32 0, i32 1
  store ptr %20, ptr %23, align 8, !tbaa !9
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.Object, ptr %25, i32 0, i32 3
  %27 = getelementptr inbounds %struct.anon, ptr %26, i32 0, i32 1
  store ptr %24, ptr %27, align 8, !tbaa !9
  %28 = load ptr, ptr %1, align 8, !tbaa !5
  %29 = call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %28)
  %30 = load ptr, ptr %1, align 8, !tbaa !5
  %31 = call noundef ptr @_ZN2VM3popEv(ptr noundef nonnull align 8 dereferenceable(180) %30)
  %32 = load ptr, ptr %1, align 8, !tbaa !5
  %33 = call noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180) %32)
  %34 = icmp eq i32 %33, 7
  %35 = zext i1 %34 to i32
  call void @_Z6assertiPKc(i32 noundef %35, ptr noundef @.str.4)
  %36 = load ptr, ptr %1, align 8, !tbaa !5
  call void @_ZN2VM2gcEv(ptr noundef nonnull align 8 dereferenceable(180) %36)
  %37 = load ptr, ptr %1, align 8, !tbaa !5
  %38 = call noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180) %37)
  %39 = icmp eq i32 %38, 0
  %40 = zext i1 %39 to i32
  call void @_Z6assertiPKc(i32 noundef %40, ptr noundef @.str.5)
  %41 = load ptr, ptr %1, align 8, !tbaa !5
  %42 = icmp eq ptr %41, null
  br i1 %42, label %44, label %43

43:                                               ; preds = %7
  call void @_ZN2VMD1Ev(ptr noundef nonnull align 8 dereferenceable(180) %41) #6
  call void @_ZdlPvm(ptr noundef %41, i64 noundef 184) #8
  br label %44

44:                                               ; preds = %43, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #6
  ret void

45:                                               ; preds = %0
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %2, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %3, align 4
  call void @_ZdlPvm(ptr noundef %6, i64 noundef 184) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #6
  br label %49

49:                                               ; preds = %45
  %50 = load ptr, ptr %2, align 8
  %51 = load i32, ptr %3, align 4
  %52 = insertvalue { ptr, i32 } poison, ptr %50, 0
  %53 = insertvalue { ptr, i32 } %52, i32 %51, 1
  resume { ptr, i32 } %53
}

attributes #0 = { mustprogress 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 = { nobuiltin allocsize(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 = { "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 = { nobuiltin 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 #5 = { 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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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++ TBAA"}
!9 = !{!7, !7, 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"

@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6assertiPKc(i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

declare void @_ZN2VMC1Eii(ptr noundef nonnull align 8 dereferenceable(180), i32 noundef, i32 noundef) unnamed_addr #2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #3

declare noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180), i32 noundef) local_unnamed_addr #2

declare noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180)) local_unnamed_addr #2

declare void @_ZN2VM2gcEv(ptr noundef nonnull align 8 dereferenceable(180)) local_unnamed_addr #2

; Function Attrs: nounwind
declare void @_ZN2VMD1Ev(ptr noundef nonnull align 8 dereferenceable(180)) unnamed_addr #4

declare noundef ptr @_ZN2VM3popEv(ptr noundef nonnull align 8 dereferenceable(180)) local_unnamed_addr #2

declare noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18testCollectsCyclesv() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = tail call noalias noundef nonnull dereferenceable(184) ptr @_Znwm(i64 noundef 184) #5
  invoke void @_ZN2VMC1Eii(ptr noundef nonnull align 8 dereferenceable(180) %1, i32 noundef 10, i32 noundef 100)
          to label %2 unwind label %19

2:                                                ; preds = %0
  %3 = tail call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %1, i32 noundef 1)
  %4 = tail call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %1, i32 noundef 2)
  %5 = tail call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %6 = tail call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %1, i32 noundef 3)
  %7 = tail call noundef ptr @_ZN2VM8pushAtomEi(ptr noundef nonnull align 8 dereferenceable(180) %1, i32 noundef 4)
  %8 = tail call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %9 = getelementptr inbounds i8, ptr %5, i64 24
  store ptr %8, ptr %9, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %8, i64 24
  store ptr %5, ptr %10, align 8, !tbaa !5
  %11 = tail call noundef ptr @_ZN2VM8pushPairEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %12 = tail call noundef ptr @_ZN2VM3popEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %13 = tail call noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %14 = icmp eq i32 %13, 7
  %15 = zext i1 %14 to i32
  tail call void @_Z6assertiPKc(i32 noundef %15, ptr noundef nonnull @.str.4)
  tail call void @_ZN2VM2gcEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %16 = tail call noundef i32 @_ZN2VM18getNumberAllocatedEv(ptr noundef nonnull align 8 dereferenceable(180) %1)
  %17 = icmp eq i32 %16, 0
  %18 = zext i1 %17 to i32
  tail call void @_Z6assertiPKc(i32 noundef %18, ptr noundef nonnull @.str.5)
  tail call void @_ZN2VMD1Ev(ptr noundef nonnull align 8 dereferenceable(180) %1) #6
  tail call void @_ZdlPvm(ptr noundef nonnull %1, i64 noundef 184) #7
  ret void

19:                                               ; preds = %0
  %20 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %1, i64 noundef 184) #7
  resume { ptr, i32 } %20
}

attributes #0 = { mustprogress 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 = { nobuiltin allocsize(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 = { "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 = { nobuiltin 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 "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 #5 = { builtin allocsize(0) }
attributes #6 = { nounwind }
attributes #7 = { builtin 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


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