; LLVM IR from kazunetakahashi/atcoder :: 2018/0603_AGC025/D.ll (Z5flushv)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"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.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::complex" = type { i32, i32 }

@ans = external dso_local global %"class.std::vector", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5flushv() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.std::complex", align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #7
  store ptr @ans, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  %7 = call ptr @_ZNSt6vectorISt7complexIiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #7
  %8 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  store ptr %7, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #7
  %9 = call ptr @_ZNSt6vectorISt7complexIiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #7
  %10 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  store ptr %9, ptr %10, align 8
  br label %11

11:                                               ; preds = %24, %0
  %12 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt7complexIiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #7
  br i1 %12, label %14, label %13

13:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #7
  br label %26

14:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #7
  %15 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %4, ptr align 4 %15, i64 8, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  %16 = call noundef i32 @_ZNKSt7complexIiE4realB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8) %4)
  store i32 %16, ptr %5, align 4, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  %17 = call noundef i32 @_ZNKSt7complexIiE4imagB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8) %4)
  store i32 %17, ptr %6, align 4, !tbaa !10
  %18 = load i32, ptr %5, align 4, !tbaa !10
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %18)
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %19, ptr noundef @.str)
  %21 = load i32, ptr %6, align 4, !tbaa !10
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %20, i32 noundef %21)
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  br label %24

24:                                               ; preds = %14
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  br label %11

26:                                               ; preds = %13
  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 @_ZNSt6vectorISt7complexIiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt7complexIiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt7complexIiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNKSt7complexIiE4realB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNKSt7complexIiE4imagB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #6

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #5

; 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 @_ZN9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEppEv(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 = { inlinehint 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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 #6 = { "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 #7 = { 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 = !{i64 0, i64 4, !10, i64 4, i64 4, !10}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::complex<int>, std::allocator<std::complex<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"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.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::complex" = type { i32, i32 }

@ans = external dso_local global %"class.std::vector", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5flushv() local_unnamed_addr #0 {
  %1 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.std::complex", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %4 = tail call ptr @_ZNSt6vectorISt7complexIiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #6
  store ptr %4, ptr %1, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %5 = tail call ptr @_ZNSt6vectorISt7complexIiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #6
  store ptr %5, ptr %2, align 8
  %6 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt7complexIiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret void

.lr.ph:                                           ; preds = %0, %.lr.ph
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %7 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #6
  %8 = load i64, ptr %7, align 4
  store i64 %8, ptr %3, align 8
  %9 = call noundef i32 @_ZNKSt7complexIiE4realB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8) %3)
  %10 = call noundef i32 @_ZNKSt7complexIiE4imagB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8) %3)
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %9)
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull @.str)
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %12, i32 noundef %10)
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #6
  %16 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt7complexIiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  br i1 %16, 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 @_ZNSt6vectorISt7complexIiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt7complexIiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt7complexIiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNKSt7complexIiE4realB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNKSt7complexIiE4imagB5cxx11Ev(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; 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 @_ZN9__gnu_cxx17__normal_iteratorIPSt7complexIiESt6vectorIS2_SaIS2_EEEppEv(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 = { inlinehint 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 #4 = { 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 #5 = { "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 #6 = { 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)"}


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