; LLVM IR from kmilo17pet/QuarkTS-cpp :: src/list.ll (ZN3qOS4listC2Ev)

; 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"

%"class.qOS::list" = type { %"class.qOS::node", ptr, ptr, i64 }
%"class.qOS::node" = type { ptr, ptr, ptr, ptr }

@_ZTVN3qOS4listE = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3qOS4listC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  invoke void @_ZN3qOS4nodeC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %4 unwind label %8

4:                                                ; preds = %1
  store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTVN3qOS4listE, i32 0, i32 0, i32 2), ptr %3, align 8, !tbaa !9
  %5 = getelementptr inbounds %"class.qOS::list", ptr %3, i32 0, i32 1
  store ptr null, ptr %5, align 8, !tbaa !11
  %6 = getelementptr inbounds %"class.qOS::list", ptr %3, i32 0, i32 2
  store ptr null, ptr %6, align 8, !tbaa !15
  %7 = getelementptr inbounds %"class.qOS::list", ptr %3, i32 0, i32 3
  store i64 0, ptr %7, align 8, !tbaa !16
  call void @_ZN3qOS4list5cleanEv(ptr noundef nonnull align 8 dereferenceable(56) %3) #2
  ret void

8:                                                ; preds = %1
  %9 = landingpad { ptr, i32 }
          catch ptr null
  %10 = extractvalue { ptr, i32 } %9, 0
  call void @__clang_call_terminate(ptr %10) #3
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3qOS4nodeC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3qOS4list5cleanEv(ptr noundef nonnull align 8 dereferenceable(56)) #0 align 2

attributes #0 = { mustprogress 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 = { noinline noreturn nounwind uwtable "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 }
attributes #3 = { noreturn 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 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 32}
!12 = !{!"_ZTSN3qOS4listE", !13, i64 0, !6, i64 32, !6, i64 40, !14, i64 48}
!13 = !{!"_ZTSN3qOS4nodeE", !6, i64 8, !6, i64 16, !6, i64 24}
!14 = !{!"long", !7, i64 0}
!15 = !{!12, !6, i64 40}
!16 = !{!12, !14, i64 48}


; 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"

@_ZTVN3qOS4listE = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3qOS4listC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  tail call void @_ZN3qOS4nodeC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0)
  store ptr getelementptr inbounds inrange(-16, 16) (i8, ptr @_ZTVN3qOS4listE, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %2, i8 0, i64 24, i1 false)
  tail call void @_ZN3qOS4list5cleanEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3qOS4nodeC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3qOS4list5cleanEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress 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 nounwind willreturn memory(argmem: write) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,SimplifyCFGPass,TailCallElimPass