; LLVM IR from gem5/gem5 :: src/systemc/tests/systemc/misc/communication/channel/dataflow (dataflow)

; 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.downsample = type { %"class.sc_core::sc_module", %"class.sc_core::sc_in", ptr, ptr }
%"class.sc_core::sc_module" = type { %"class.sc_core::sc_object", %"class.sc_core::sc_process_host", %"class.sc_core::sc_sensitive", %"class.sc_core::sc_sensitive_pos", %"class.sc_core::sc_sensitive_neg", i8, ptr, i32, ptr, ptr }
%"class.sc_core::sc_object" = type { ptr, ptr, %"class.std::vector", %"class.std::vector.0", %"class.std::__cxx11::basic_string", ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_event *, std::allocator<sc_core::sc_event *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_object *, std::allocator<sc_core::sc_object *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.sc_core::sc_process_host" = type { ptr }
%"class.sc_core::sc_sensitive" = type { ptr, i32, ptr }
%"class.sc_core::sc_sensitive_pos" = type { ptr, i32, ptr }
%"class.sc_core::sc_sensitive_neg" = type { ptr, i32, ptr }
%"class.sc_core::sc_in" = type { %"class.sc_core::sc_port", ptr, ptr, ptr, ptr }
%"class.sc_core::sc_port" = type { %"class.sc_core::sc_port_b" }
%"class.sc_core::sc_port_b" = type { %"class.sc_core::sc_port_base", ptr, %"class.std::vector.8" }
%"class.sc_core::sc_port_base" = type { %"class.sc_core::sc_object", ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl" }
%"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl" = type { %"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<sc_core::sc_signal_in_if<bool> *, std::allocator<sc_core::sc_signal_in_if<bool> *>>::_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: mustprogress uwtable
define dso_local void @_ZN10downsample5entryEv(ptr noundef nonnull align 8 dereferenceable(432) %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 @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  br label %5

5:                                                ; preds = %6, %1
  br label %6

6:                                                ; preds = %5
  %7 = getelementptr inbounds %struct.downsample, ptr %4, i32 0, i32 2
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %8, align 8, !tbaa !41
  %10 = getelementptr inbounds ptr, ptr %9, i64 8
  %11 = load ptr, ptr %10, align 8
  %12 = call noundef i32 %11(ptr noundef nonnull align 8 dereferenceable(544) %8)
  store i32 %12, ptr %3, align 4, !tbaa !43
  %13 = getelementptr inbounds %struct.downsample, ptr %4, i32 0, i32 2
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  %15 = load ptr, ptr %14, align 8, !tbaa !41
  %16 = getelementptr inbounds ptr, ptr %15, i64 8
  %17 = load ptr, ptr %16, align 8
  %18 = call noundef i32 %17(ptr noundef nonnull align 8 dereferenceable(544) %14)
  store i32 %18, ptr %3, align 4, !tbaa !43
  %19 = getelementptr inbounds %struct.downsample, ptr %4, i32 0, i32 3
  %20 = load ptr, ptr %19, align 8, !tbaa !44
  %21 = load ptr, ptr %20, align 8, !tbaa !41
  %22 = getelementptr inbounds ptr, ptr %21, i64 9
  %23 = load ptr, ptr %22, align 8
  call void %23(ptr noundef nonnull align 8 dereferenceable(544) %20, ptr noundef nonnull align 4 dereferenceable(4) %3)
  br label %5, !llvm.loop !45
}

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 = { 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, !6, i64 416}
!10 = !{!"_ZTS10downsample", !11, i64 0, !33, i64 232, !6, i64 416, !6, i64 424}
!11 = !{!"_ZTSN7sc_core9sc_moduleE", !12, i64 0, !24, i64 112, !25, i64 120, !27, i64 144, !29, i64 168, !31, i64 192, !6, i64 200, !32, i64 208, !6, i64 216, !6, i64 224}
!12 = !{!"_ZTSN7sc_core9sc_objectE", !6, i64 8, !13, i64 16, !17, i64 40, !21, i64 64, !6, i64 96, !6, i64 104}
!13 = !{!"_ZTSSt6vectorIPN7sc_core8sc_eventESaIS2_EE", !14, i64 0}
!14 = !{!"_ZTSSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE12_Vector_implE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!17 = !{!"_ZTSSt6vectorIPN7sc_core9sc_objectESaIS2_EE", !18, i64 0}
!18 = !{!"_ZTSSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE12_Vector_implE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!21 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !22, i64 0, !23, i64 8, !7, i64 16}
!22 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!23 = !{!"long", !7, i64 0}
!24 = !{!"_ZTSN7sc_core15sc_process_hostE"}
!25 = !{!"_ZTSN7sc_core12sc_sensitiveE", !6, i64 0, !26, i64 8, !6, i64 16}
!26 = !{!"_ZTSN7sc_core12sc_sensitiveUt_E", !7, i64 0}
!27 = !{!"_ZTSN7sc_core16sc_sensitive_posE", !6, i64 0, !28, i64 8, !6, i64 16}
!28 = !{!"_ZTSN7sc_core16sc_sensitive_posUt_E", !7, i64 0}
!29 = !{!"_ZTSN7sc_core16sc_sensitive_negE", !6, i64 0, !30, i64 8, !6, i64 16}
!30 = !{!"_ZTSN7sc_core16sc_sensitive_negUt_E", !7, i64 0}
!31 = !{!"bool", !7, i64 0}
!32 = !{!"int", !7, i64 0}
!33 = !{!"_ZTSN7sc_core5sc_inIbEE", !34, i64 0, !6, i64 152, !6, i64 160, !6, i64 168, !6, i64 176}
!34 = !{!"_ZTSN7sc_core7sc_portINS_15sc_signal_in_ifIbEELi1ELNS_14sc_port_policyE0EEE", !35, i64 0}
!35 = !{!"_ZTSN7sc_core9sc_port_bINS_15sc_signal_in_ifIbEEEE", !36, i64 0, !6, i64 120, !37, i64 128}
!36 = !{!"_ZTSN7sc_core12sc_port_baseE", !12, i64 0, !6, i64 112}
!37 = !{!"_ZTSSt6vectorIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE", !38, i64 0}
!38 = !{!"_ZTSSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE", !39, i64 0}
!39 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE12_Vector_implE", !40, i64 0}
!40 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!41 = !{!42, !42, i64 0}
!42 = !{!"vtable pointer", !8, i64 0}
!43 = !{!32, !32, i64 0}
!44 = !{!10, !6, i64 424}
!45 = distinct !{!45, !46}
!46 = !{!"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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress noreturn uwtable
define dso_local void @_ZN10downsample5entryEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(432) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #2
  %3 = getelementptr inbounds i8, ptr %0, i64 416
  %4 = getelementptr inbounds i8, ptr %0, i64 424
  br label %5

5:                                                ; preds = %5, %1
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %6, align 8, !tbaa !40
  %8 = getelementptr inbounds i8, ptr %7, i64 64
  %9 = load ptr, ptr %8, align 8
  %10 = call noundef i32 %9(ptr noundef nonnull align 8 dereferenceable(544) %6)
  store i32 %10, ptr %2, align 4, !tbaa !42
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !40
  %13 = getelementptr inbounds i8, ptr %12, i64 64
  %14 = load ptr, ptr %13, align 8
  %15 = call noundef i32 %14(ptr noundef nonnull align 8 dereferenceable(544) %11)
  store i32 %15, ptr %2, align 4, !tbaa !42
  %16 = load ptr, ptr %4, align 8, !tbaa !43
  %17 = load ptr, ptr %16, align 8, !tbaa !40
  %18 = getelementptr inbounds i8, ptr %17, i64 72
  %19 = load ptr, ptr %18, align 8
  call void %19(ptr noundef nonnull align 8 dereferenceable(544) %16, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %5, !llvm.loop !44
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress noreturn 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, !9, i64 416}
!6 = !{!"_ZTS10downsample", !7, i64 0, !32, i64 232, !9, i64 416, !9, i64 424}
!7 = !{!"_ZTSN7sc_core9sc_moduleE", !8, i64 0, !23, i64 112, !24, i64 120, !26, i64 144, !28, i64 168, !30, i64 192, !9, i64 200, !31, i64 208, !9, i64 216, !9, i64 224}
!8 = !{!"_ZTSN7sc_core9sc_objectE", !9, i64 8, !12, i64 16, !16, i64 40, !20, i64 64, !9, i64 96, !9, i64 104}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"_ZTSSt6vectorIPN7sc_core8sc_eventESaIS2_EE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core8sc_eventESaIS2_EE17_Vector_impl_dataE", !9, i64 0, !9, i64 8, !9, i64 16}
!16 = !{!"_ZTSSt6vectorIPN7sc_core9sc_objectESaIS2_EE", !17, i64 0}
!17 = !{!"_ZTSSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE12_Vector_implE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core9sc_objectESaIS2_EE17_Vector_impl_dataE", !9, i64 0, !9, i64 8, !9, i64 16}
!20 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !21, i64 0, !22, i64 8, !10, i64 16}
!21 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !9, i64 0}
!22 = !{!"long", !10, i64 0}
!23 = !{!"_ZTSN7sc_core15sc_process_hostE"}
!24 = !{!"_ZTSN7sc_core12sc_sensitiveE", !9, i64 0, !25, i64 8, !9, i64 16}
!25 = !{!"_ZTSN7sc_core12sc_sensitiveUt_E", !10, i64 0}
!26 = !{!"_ZTSN7sc_core16sc_sensitive_posE", !9, i64 0, !27, i64 8, !9, i64 16}
!27 = !{!"_ZTSN7sc_core16sc_sensitive_posUt_E", !10, i64 0}
!28 = !{!"_ZTSN7sc_core16sc_sensitive_negE", !9, i64 0, !29, i64 8, !9, i64 16}
!29 = !{!"_ZTSN7sc_core16sc_sensitive_negUt_E", !10, i64 0}
!30 = !{!"bool", !10, i64 0}
!31 = !{!"int", !10, i64 0}
!32 = !{!"_ZTSN7sc_core5sc_inIbEE", !33, i64 0, !9, i64 152, !9, i64 160, !9, i64 168, !9, i64 176}
!33 = !{!"_ZTSN7sc_core7sc_portINS_15sc_signal_in_ifIbEELi1ELNS_14sc_port_policyE0EEE", !34, i64 0}
!34 = !{!"_ZTSN7sc_core9sc_port_bINS_15sc_signal_in_ifIbEEEE", !35, i64 0, !9, i64 120, !36, i64 128}
!35 = !{!"_ZTSN7sc_core12sc_port_baseE", !8, i64 0, !9, i64 112}
!36 = !{!"_ZTSSt6vectorIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE", !37, i64 0}
!37 = !{!"_ZTSSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE", !38, i64 0}
!38 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE12_Vector_implE", !39, i64 0}
!39 = !{!"_ZTSNSt12_Vector_baseIPN7sc_core15sc_signal_in_ifIbEESaIS3_EE17_Vector_impl_dataE", !9, i64 0, !9, i64 8, !9, i64 16}
!40 = !{!41, !41, i64 0}
!41 = !{!"vtable pointer", !11, i64 0}
!42 = !{!31, !31, i64 0}
!43 = !{!6, !9, i64 424}
!44 = distinct !{!44, !45}
!45 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass