; LLVM IR from Tunghohin/Competitive_Coding :: Nowcoder/21791_B.ll (Z5solvev)

; 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.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@C = external dso_local global [110 x [110 x i32]], align 16
@c_cnt = external dso_local global [110 x i32], align 16
@r_cnt = external dso_local global [110 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i8, align 1
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  store i32 1, ptr %1, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %40, %0
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %11 = icmp sle i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  store i32 2, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  br label %43

13:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %36, %13
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = load i32, ptr @n, align 4, !tbaa !5
  %17 = icmp sle i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  store i32 5, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %39

19:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #4
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %4)
  %21 = load i8, ptr %4, align 1, !tbaa !9
  %22 = sext i8 %21 to i32
  %23 = icmp eq i32 %22, 67
  br i1 %23, label %24, label %35

24:                                               ; preds = %19
  %25 = load i32, ptr %1, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [110 x i32], ptr @r_cnt, i64 0, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %27, align 4, !tbaa !5
  %30 = load i32, ptr %3, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [110 x i32], ptr @c_cnt, i64 0, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %32, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %24, %19
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #4
  br label %36

36:                                               ; preds = %35
  %37 = load i32, ptr %3, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %3, align 4, !tbaa !5
  br label %14, !llvm.loop !10

39:                                               ; preds = %18
  br label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %1, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %1, align 4, !tbaa !5
  br label %8, !llvm.loop !12

43:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  store i64 0, ptr %5, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %86, %43
  %45 = load i32, ptr %6, align 4, !tbaa !5
  %46 = load i32, ptr @n, align 4, !tbaa !5
  %47 = icmp sle i32 %45, %46
  br i1 %47, label %49, label %48

48:                                               ; preds = %44
  store i32 8, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %89

49:                                               ; preds = %44
  %50 = load i32, ptr %6, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [110 x i32], ptr @c_cnt, i64 0, i64 %51
  %53 = load i32, ptr %52, align 4, !tbaa !5
  %54 = icmp sge i32 %53, 2
  br i1 %54, label %55, label %67

55:                                               ; preds = %49
  %56 = load i32, ptr %6, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds [110 x i32], ptr @c_cnt, i64 0, i64 %57
  %59 = load i32, ptr %58, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds [110 x [110 x i32]], ptr @C, i64 0, i64 %60
  %62 = getelementptr inbounds [110 x i32], ptr %61, i64 0, i64 2
  %63 = load i32, ptr %62, align 8, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = load i64, ptr %5, align 8, !tbaa !13
  %66 = add nsw i64 %65, %64
  store i64 %66, ptr %5, align 8, !tbaa !13
  br label %67

67:                                               ; preds = %55, %49
  %68 = load i32, ptr %6, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds [110 x i32], ptr @r_cnt, i64 0, i64 %69
  %71 = load i32, ptr %70, align 4, !tbaa !5
  %72 = icmp sge i32 %71, 2
  br i1 %72, label %73, label %85

73:                                               ; preds = %67
  %74 = load i32, ptr %6, align 4, !tbaa !5
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds [110 x i32], ptr @r_cnt, i64 0, i64 %75
  %77 = load i32, ptr %76, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = getelementptr inbounds [110 x [110 x i32]], ptr @C, i64 0, i64 %78
  %80 = getelementptr inbounds [110 x i32], ptr %79, i64 0, i64 2
  %81 = load i32, ptr %80, align 8, !tbaa !5
  %82 = sext i32 %81 to i64
  %83 = load i64, ptr %5, align 8, !tbaa !13
  %84 = add nsw i64 %83, %82
  store i64 %84, ptr %5, align 8, !tbaa !13
  br label %85

85:                                               ; preds = %73, %67
  br label %86

86:                                               ; preds = %85
  %87 = load i32, ptr %6, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %6, align 4, !tbaa !5
  br label %44, !llvm.loop !15

89:                                               ; preds = %48
  %90 = load i64, ptr %5, align 8, !tbaa !13
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %90)
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %91, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret void
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint 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 #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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}
!13 = !{!14, !14, i64 0}
!14 = !{!"long long", !7, i64 0}
!15 = distinct !{!15, !11}


; 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"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@C = external dso_local local_unnamed_addr global [110 x [110 x i32]], align 16
@c_cnt = external dso_local local_unnamed_addr global [110 x i32], align 16
@r_cnt = external dso_local local_unnamed_addr global [110 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 {
  %1 = alloca i8, align 1
  %2 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %3 = load i32, ptr @n, align 4, !tbaa !5
  %.not25 = icmp slt i32 %3, 1
  br i1 %.not25, label %._crit_edge31, label %.preheader22

.preheader22:                                     ; preds = %0, %._crit_edge
  %4 = phi i32 [ %7, %._crit_edge ], [ %3, %0 ]
  %indvars.iv36 = phi i64 [ %indvars.iv.next37, %._crit_edge ], [ 1, %0 ]
  %.not2123 = icmp slt i32 %4, 1
  br i1 %.not2123, label %.preheader22.._crit_edge_crit_edge, label %.lr.ph

.preheader22.._crit_edge_crit_edge:               ; preds = %.preheader22
  %.pre = sext i32 %4 to i64
  br label %._crit_edge

.lr.ph:                                           ; preds = %.preheader22
  %5 = getelementptr inbounds [110 x i32], ptr @r_cnt, i64 0, i64 %indvars.iv36
  br label %8

.preheader:                                       ; preds = %._crit_edge
  %.not2027 = icmp slt i32 %7, 1
  br i1 %.not2027, label %._crit_edge31, label %.lr.ph30.preheader

.lr.ph30.preheader:                               ; preds = %.preheader
  %6 = add nuw i32 %7, 1
  %wide.trip.count = zext i32 %6 to i64
  br label %.lr.ph30

._crit_edge:                                      ; preds = %18, %.preheader22.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.preheader22.._crit_edge_crit_edge ], [ %20, %18 ]
  %7 = phi i32 [ %4, %.preheader22.._crit_edge_crit_edge ], [ %19, %18 ]
  %indvars.iv.next37 = add nuw nsw i64 %indvars.iv36, 1
  %.not.not = icmp slt i64 %indvars.iv36, %.pre-phi
  br i1 %.not.not, label %.preheader22, label %.preheader, !llvm.loop !9

8:                                                ; preds = %.lr.ph, %18
  %indvars.iv = phi i64 [ 1, %.lr.ph ], [ %indvars.iv.next, %18 ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %1)
  %10 = load i8, ptr %1, align 1, !tbaa !12
  %11 = icmp eq i8 %10, 67
  br i1 %11, label %12, label %18

12:                                               ; preds = %8
  %13 = load i32, ptr %5, align 4, !tbaa !5
  %14 = add nsw i32 %13, 1
  store i32 %14, ptr %5, align 4, !tbaa !5
  %15 = getelementptr inbounds [110 x i32], ptr @c_cnt, i64 0, i64 %indvars.iv
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %15, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %12, %8
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %19 = load i32, ptr @n, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %.not21.not = icmp slt i64 %indvars.iv, %20
  br i1 %.not21.not, label %8, label %._crit_edge, !llvm.loop !13

._crit_edge31:                                    ; preds = %42, %0, %.preheader
  %.015.lcssa = phi i64 [ 0, %.preheader ], [ 0, %0 ], [ %.2, %42 ]
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.015.lcssa)
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %21, i8 noundef signext 10)
  ret void

.lr.ph30:                                         ; preds = %.lr.ph30.preheader, %42
  %indvars.iv39 = phi i64 [ 1, %.lr.ph30.preheader ], [ %indvars.iv.next40, %42 ]
  %.01528 = phi i64 [ 0, %.lr.ph30.preheader ], [ %.2, %42 ]
  %23 = getelementptr inbounds [110 x i32], ptr @c_cnt, i64 0, i64 %indvars.iv39
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = icmp sgt i32 %24, 1
  br i1 %25, label %26, label %32

26:                                               ; preds = %.lr.ph30
  %27 = zext nneg i32 %24 to i64
  %28 = getelementptr inbounds [110 x [110 x i32]], ptr @C, i64 0, i64 %27, i64 2
  %29 = load i32, ptr %28, align 8, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = add nsw i64 %.01528, %30
  br label %32

32:                                               ; preds = %26, %.lr.ph30
  %.1 = phi i64 [ %31, %26 ], [ %.01528, %.lr.ph30 ]
  %33 = getelementptr inbounds [110 x i32], ptr @r_cnt, i64 0, i64 %indvars.iv39
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = icmp sgt i32 %34, 1
  br i1 %35, label %36, label %42

36:                                               ; preds = %32
  %37 = zext nneg i32 %34 to i64
  %38 = getelementptr inbounds [110 x [110 x i32]], ptr @C, i64 0, i64 %37, i64 2
  %39 = load i32, ptr %38, align 8, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = add nsw i64 %.1, %40
  br label %42

42:                                               ; preds = %32, %36
  %.2 = phi i64 [ %41, %36 ], [ %.1, %32 ]
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next40, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge31, label %.lr.ph30, !llvm.loop !14
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint 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 #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 = distinct !{!9, !10, !11}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.unswitch.partial.disable"}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SCCPPass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass,TailCallElimPass