; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/communication (sc_port)

; 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.sc_core::sc_port_registry" = type { i32, %"class.std::vector.48", ptr }
%"class.std::vector.48" = type { %"struct.std::_Vector_base.49" }
%"struct.std::_Vector_base.49" = type { %"struct.std::_Vector_base<sc_core::sc_port_base *, std::allocator<sc_core::sc_port_base *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_port_base *, std::allocator<sc_core::sc_port_base *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_port_base *, std::allocator<sc_core::sc_port_base *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_port_base *, std::allocator<sc_core::sc_port_base *>>::_Vector_impl_data" = type { ptr, 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: mustprogress uwtable
declare dso_local void @_ZN7sc_core12sc_port_base16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(120)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK7sc_core16sc_port_registry4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7sc_core12sc_port_baseESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core16sc_port_registry16complete_bindingEv(ptr noundef nonnull align 8 dereferenceable(40)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7sc_core16sc_port_registry16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(40) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @_ZN7sc_core16sc_port_registry16complete_bindingEv(ptr noundef nonnull align 8 dereferenceable(40) %4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %5 = call noundef i32 @_ZNK7sc_core16sc_port_registry4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %4)
  %6 = sub nsw i32 %5, 1
  store i32 %6, ptr %3, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %17, %1
  %8 = load i32, ptr %3, align 4, !tbaa !9
  %9 = icmp sge i32 %8, 0
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %20

11:                                               ; preds = %7
  %12 = getelementptr inbounds %"class.sc_core::sc_port_registry", ptr %4, i32 0, i32 1
  %13 = load i32, ptr %3, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7sc_core12sc_port_baseESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %14) #3
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  call void @_ZN7sc_core12sc_port_base16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(120) %16)
  br label %17

17:                                               ; preds = %11
  %18 = load i32, ptr %3, align 4, !tbaa !9
  %19 = add nsw i32 %18, -1
  store i32 %19, ptr %3, align 4, !tbaa !9
  br label %7, !llvm.loop !11

20:                                               ; preds = %10
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: mustprogress uwtable
declare dso_local void @_ZN7sc_core12sc_port_base16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(120)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK7sc_core16sc_port_registry4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7sc_core12sc_port_baseESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core16sc_port_registry16complete_bindingEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7sc_core16sc_port_registry16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(40) %0) local_unnamed_addr #0 align 2 {
  tail call void @_ZN7sc_core16sc_port_registry16complete_bindingEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %2 = tail call noundef i32 @_ZNK7sc_core16sc_port_registry4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = zext nneg i32 %2 to i64
  br label %6

._crit_edge:                                      ; preds = %6, %1
  ret void

6:                                                ; preds = %.lr.ph, %6
  %indvars.iv = phi i64 [ %5, %.lr.ph ], [ %indvars.iv.next, %6 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %7 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIPN7sc_core12sc_port_baseESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv.next) #2
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  tail call void @_ZN7sc_core12sc_port_base16elaboration_doneEv(ptr noundef nonnull align 8 dereferenceable(120) %8)
  %9 = icmp ugt i64 %indvars.iv, 1
  br i1 %9, label %6, label %._crit_edge, !llvm.loop !9
}

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 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 }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass