; LLVM IR from flashlight/flashlight :: flashlight/fl/runtime (Stream)

; 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.std::__detail::_Node_const_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK2fl6Stream12relativeSyncERKSt13unordered_setIPKS0_St4hashIS3_ESt8equal_toIS3_ESaIS3_EE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %7 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %10, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = call ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %11) #3
  %13 = getelementptr inbounds %"struct.std::__detail::_Node_const_iterator", ptr %6, i32 0, i32 0
  %14 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %13, i32 0, i32 0
  store ptr %12, ptr %14, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = call ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %15) #3
  %17 = getelementptr inbounds %"struct.std::__detail::_Node_const_iterator", ptr %7, i32 0, i32 0
  %18 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %17, i32 0, i32 0
  store ptr %16, ptr %18, align 8
  br label %19

19:                                               ; preds = %29, %2
  %20 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIPKN2fl6StreamELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %31

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  store ptr %24, ptr %8, align 8, !tbaa !5
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load ptr, ptr %9, align 8, !tbaa !9
  %27 = getelementptr inbounds ptr, ptr %26, i64 6
  %28 = load ptr, ptr %27, align 8
  call void %28(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %25)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %29

29:                                               ; preds = %22
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  br label %19

31:                                               ; preds = %21
  ret void
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIPKN2fl6StreamELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

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 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, 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"

%"struct.std::__detail::_Node_const_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK2fl6Stream12relativeSyncERKSt13unordered_setIPKS0_St4hashIS3_ESt8equal_toIS3_ESaIS3_EE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) unnamed_addr #0 align 2 {
  %3 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %4 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = tail call ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #3
  store ptr %5, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %6 = tail call ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #3
  store ptr %6, ptr %4, align 8
  %7 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIPKN2fl6StreamELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = load ptr, ptr %0, align 8, !tbaa !9
  %11 = getelementptr inbounds i8, ptr %10, i64 48
  %12 = load ptr, ptr %11, align 8
  call void %12(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %9)
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %14 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIPKN2fl6StreamELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br i1 %14, label %.lr.ph, label %._crit_edge
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setIPKN2fl6StreamESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIPKN2fl6StreamELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorIPKN2fl6StreamELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}


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