; LLVM IR from stonne-simulator/omega :: omega-code/stonne/src/OSMeshMN.ll (ZN8OSMeshMN12resetSignalsEv)

; 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::pair" = type { i32, i32 }
%class.OSMeshMN = type <{ %class.MultiplierNetwork, %"class.std::map", %"class.std::map.3", %"class.std::map.3", %"class.std::map.3", i32, i32, i32, i32, i32, [4 x i8] }>
%class.MultiplierNetwork = type { %class.Unit }
%class.Unit = type { ptr, i32, %"class.std::__cxx11::basic_string" }
%"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.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, MultiplierOS *>, std::_Select1st<std::pair<const std::pair<int, int>, MultiplierOS *>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, MultiplierOS *>, std::_Select1st<std::pair<const std::pair<int, int>, MultiplierOS *>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::map.3" = type { %"class.std::_Rb_tree.4" }
%"class.std::_Rb_tree.4" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, Connection *>, std::_Select1st<std::pair<const std::pair<int, int>, Connection *>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, Connection *>, std::_Select1st<std::pair<const std::pair<int, int>, Connection *>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }

; 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 nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEEixERS6_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8OSMeshMN12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(260) %0) unnamed_addr #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %8 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %31, %1
  %10 = load i32, ptr %3, align 4, !tbaa !9
  %11 = getelementptr inbounds %class.OSMeshMN, ptr %8, i32 0, i32 5
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = icmp ult i32 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %34

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %27, %15
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = getelementptr inbounds %class.OSMeshMN, ptr %8, i32 0, i32 6
  %19 = load i32, ptr %18, align 4, !tbaa !29
  %20 = icmp ult i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %30

22:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %23 = getelementptr inbounds %class.OSMeshMN, ptr %8, i32 0, i32 1
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEEixERS6_(ptr noundef nonnull align 8 dereferenceable(48) %23, ptr noundef nonnull align 4 dereferenceable(8) %6)
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  store ptr %25, ptr %7, align 8, !tbaa !5
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  call void @_ZN12MultiplierOS12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(222) %26)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %27

27:                                               ; preds = %22
  %28 = load i32, ptr %5, align 4, !tbaa !9
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %5, align 4, !tbaa !9
  br label %16, !llvm.loop !30

30:                                               ; preds = %21
  br label %31

31:                                               ; preds = %30
  %32 = load i32, ptr %3, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %3, align 4, !tbaa !9
  br label %9, !llvm.loop !32

34:                                               ; preds = %14
  ret void
}

declare void @_ZN12MultiplierOS12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(222)) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = { 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 = !{!12, !10, i64 240}
!12 = !{!"_ZTS8OSMeshMN", !13, i64 0, !18, i64 48, !26, i64 96, !26, i64 144, !26, i64 192, !10, i64 240, !10, i64 244, !10, i64 248, !10, i64 252, !10, i64 256}
!13 = !{!"_ZTS17MultiplierNetwork", !14, i64 0}
!14 = !{!"_ZTS4Unit", !10, i64 8, !15, i64 16}
!15 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !16, i64 0, !17, i64 8, !7, i64 16}
!16 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!17 = !{!"long", !7, i64 0}
!18 = !{!"_ZTSSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEE", !19, i64 0}
!19 = !{!"_ZTSSt8_Rb_treeISt4pairIiiES0_IKS1_P12MultiplierOSESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE", !20, i64 0}
!20 = !{!"_ZTSNSt8_Rb_treeISt4pairIiiES0_IKS1_P12MultiplierOSESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !21, i64 0, !23, i64 8}
!21 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessISt4pairIiiEEE", !22, i64 0}
!22 = !{!"_ZTSSt4lessISt4pairIiiEE"}
!23 = !{!"_ZTSSt15_Rb_tree_header", !24, i64 0, !17, i64 32}
!24 = !{!"_ZTSSt18_Rb_tree_node_base", !25, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!25 = !{!"_ZTSSt14_Rb_tree_color", !7, i64 0}
!26 = !{!"_ZTSSt3mapISt4pairIiiEP10ConnectionSt4lessIS1_ESaIS0_IKS1_S3_EEE", !27, i64 0}
!27 = !{!"_ZTSSt8_Rb_treeISt4pairIiiES0_IKS1_P10ConnectionESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE", !28, i64 0}
!28 = !{!"_ZTSNSt8_Rb_treeISt4pairIiiES0_IKS1_P10ConnectionESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !21, i64 0, !23, i64 8}
!29 = !{!12, !10, i64 244}
!30 = distinct !{!30, !31}
!31 = !{!"llvm.loop.mustprogress"}
!32 = distinct !{!32, !31}


; 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::pair" = type { i32, i32 }

; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEEixERS6_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8OSMeshMN12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(260) %0) unnamed_addr #2 align 2 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::pair", align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %5 = getelementptr inbounds i8, ptr %0, i64 240
  store i32 0, ptr %2, align 4, !tbaa !5
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %._crit_edge5, label %.lr.ph4

.lr.ph4:                                          ; preds = %1
  %7 = getelementptr inbounds i8, ptr %0, i64 244
  %8 = getelementptr inbounds i8, ptr %0, i64 48
  %9 = load i32, ptr %7, align 4, !tbaa !28
  %.not6 = icmp eq i32 %9, 0
  br i1 %.not6, label %._crit_edge5, label %.lr.ph4.split

._crit_edge5:                                     ; preds = %._crit_edge, %.lr.ph4, %1
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  ret void

.lr.ph4.split:                                    ; preds = %.lr.ph4, %._crit_edge
  %10 = phi i32 [ %13, %._crit_edge ], [ %6, %.lr.ph4 ]
  %11 = phi i32 [ %16, %._crit_edge ], [ 0, %.lr.ph4 ]
  %12 = phi i32 [ %15, %._crit_edge ], [ 1, %.lr.ph4 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  store i32 0, ptr %3, align 4, !tbaa !5
  %.not7 = icmp eq i32 %12, 0
  br i1 %.not7, label %._crit_edge, label %.lr.ph

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %.pre = load i32, ptr %2, align 4, !tbaa !5
  %.pre8 = load i32, ptr %5, align 8, !tbaa !9
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.lr.ph4.split
  %13 = phi i32 [ %.pre8, %._crit_edge.loopexit ], [ %10, %.lr.ph4.split ]
  %14 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ %11, %.lr.ph4.split ]
  %15 = phi i32 [ %22, %._crit_edge.loopexit ], [ 0, %.lr.ph4.split ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  %16 = add nsw i32 %14, 1
  store i32 %16, ptr %2, align 4, !tbaa !5
  %17 = icmp ult i32 %16, %13
  br i1 %17, label %.lr.ph4.split, label %._crit_edge5, !llvm.loop !29

.lr.ph:                                           ; preds = %.lr.ph4.split, %.lr.ph
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEEixERS6_(ptr noundef nonnull align 8 dereferenceable(48) %8, ptr noundef nonnull align 4 dereferenceable(8) %4)
  %19 = load ptr, ptr %18, align 8, !tbaa !32
  call void @_ZN12MultiplierOS12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(222) %19)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %3, align 4, !tbaa !5
  %22 = load i32, ptr %7, align 4, !tbaa !28
  %23 = icmp ult i32 %21, %22
  br i1 %23, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !33
}

declare void @_ZN12MultiplierOS12resetSignalsEv(ptr noundef nonnull align 8 dereferenceable(222)) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 240}
!10 = !{!"_ZTS8OSMeshMN", !11, i64 0, !17, i64 48, !25, i64 96, !25, i64 144, !25, i64 192, !6, i64 240, !6, i64 244, !6, i64 248, !6, i64 252, !6, i64 256}
!11 = !{!"_ZTS17MultiplierNetwork", !12, i64 0}
!12 = !{!"_ZTS4Unit", !6, i64 8, !13, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !14, i64 0, !16, i64 8, !7, i64 16}
!14 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !15, i64 0}
!15 = !{!"any pointer", !7, i64 0}
!16 = !{!"long", !7, i64 0}
!17 = !{!"_ZTSSt3mapISt4pairIiiEP12MultiplierOSSt4lessIS1_ESaIS0_IKS1_S3_EEE", !18, i64 0}
!18 = !{!"_ZTSSt8_Rb_treeISt4pairIiiES0_IKS1_P12MultiplierOSESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE", !19, i64 0}
!19 = !{!"_ZTSNSt8_Rb_treeISt4pairIiiES0_IKS1_P12MultiplierOSESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !20, i64 0, !22, i64 8}
!20 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessISt4pairIiiEEE", !21, i64 0}
!21 = !{!"_ZTSSt4lessISt4pairIiiEE"}
!22 = !{!"_ZTSSt15_Rb_tree_header", !23, i64 0, !16, i64 32}
!23 = !{!"_ZTSSt18_Rb_tree_node_base", !24, i64 0, !15, i64 8, !15, i64 16, !15, i64 24}
!24 = !{!"_ZTSSt14_Rb_tree_color", !7, i64 0}
!25 = !{!"_ZTSSt3mapISt4pairIiiEP10ConnectionSt4lessIS1_ESaIS0_IKS1_S3_EEE", !26, i64 0}
!26 = !{!"_ZTSSt8_Rb_treeISt4pairIiiES0_IKS1_P10ConnectionESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE", !27, i64 0}
!27 = !{!"_ZTSNSt8_Rb_treeISt4pairIiiES0_IKS1_P10ConnectionESt10_Select1stIS5_ESt4lessIS1_ESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !20, i64 0, !22, i64 8}
!28 = !{!10, !6, i64 244}
!29 = distinct !{!29, !30, !31}
!30 = !{!"llvm.loop.mustprogress"}
!31 = !{!"llvm.loop.unswitch.partial.disable"}
!32 = !{!15, !15, i64 0}
!33 = distinct !{!33, !30}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass