; LLVM IR from tangjz/acm-icpc :: hdu/6350.ll (Z3bfsi)

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

@up = external dso_local global [100001 x i32], align 16
@dep = external dso_local global [100001 x i32], align 16
@tot = external dso_local global i32, align 4
@que = external dso_local global [100001 x i32], align 16
@e = external dso_local global [100001 x %"class.std::vector"], align 16
@seq = external dso_local global [200001 x %struct.Edge], align 16

; 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
define dso_local void @_Z3bfsi(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  store i32 0, ptr @tot, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = load i32, ptr @tot, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  store i32 %13, ptr @tot, align 4, !tbaa !5
  %14 = sext i32 %12 to i64
  %15 = getelementptr inbounds [100001 x i32], ptr @que, i64 0, i64 %14
  store i32 %11, ptr %15, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %93, %1
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = load i32, ptr @tot, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %96

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [100001 x i32], ptr @que, i64 0, i64 %23
  %25 = load i32, ptr %24, align 4, !tbaa !5
  store i32 %25, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @e, i64 0, i64 %27
  store ptr %28, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %29 = load ptr, ptr %6, align 8, !tbaa !9
  %30 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %29) #3
  %31 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %30, ptr %31, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %32 = load ptr, ptr %6, align 8, !tbaa !9
  %33 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %32) #3
  %34 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %33, ptr %34, align 8
  br label %35

35:                                               ; preds = %90, %21
  %36 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #3
  br i1 %36, label %38, label %37

37:                                               ; preds = %35
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %92

38:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  %40 = load i32, ptr %39, align 4, !tbaa !5
  store i32 %40, ptr %9, align 4, !tbaa !5
  %41 = load i32, ptr %9, align 4, !tbaa !5
  %42 = load i32, ptr %5, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %44 = getelementptr inbounds [100001 x i32], ptr @up, i64 0, i64 %43
  %45 = load i32, ptr %44, align 4, !tbaa !5
  %46 = icmp eq i32 %41, %45
  br i1 %46, label %47, label %48

47:                                               ; preds = %38
  store i32 6, ptr %4, align 4
  br label %87

48:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %49 = load i32, ptr %5, align 4, !tbaa !5
  %50 = load i32, ptr %9, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [200001 x %struct.Edge], ptr @seq, i64 0, i64 %51
  %53 = getelementptr inbounds %struct.Edge, ptr %52, i32 0, i32 0
  %54 = load i32, ptr %53, align 4, !tbaa !11
  %55 = icmp eq i32 %49, %54
  br i1 %55, label %56, label %62

56:                                               ; preds = %48
  %57 = load i32, ptr %9, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [200001 x %struct.Edge], ptr @seq, i64 0, i64 %58
  %60 = getelementptr inbounds %struct.Edge, ptr %59, i32 0, i32 1
  %61 = load i32, ptr %60, align 4, !tbaa !13
  br label %68

62:                                               ; preds = %48
  %63 = load i32, ptr %9, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds [200001 x %struct.Edge], ptr @seq, i64 0, i64 %64
  %66 = getelementptr inbounds %struct.Edge, ptr %65, i32 0, i32 0
  %67 = load i32, ptr %66, align 4, !tbaa !11
  br label %68

68:                                               ; preds = %62, %56
  %69 = phi i32 [ %61, %56 ], [ %67, %62 ]
  store i32 %69, ptr %10, align 4, !tbaa !5
  %70 = load i32, ptr %9, align 4, !tbaa !5
  %71 = load i32, ptr %10, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [100001 x i32], ptr @up, i64 0, i64 %72
  store i32 %70, ptr %73, align 4, !tbaa !5
  %74 = load i32, ptr %5, align 4, !tbaa !5
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds [100001 x i32], ptr @dep, i64 0, i64 %75
  %77 = load i32, ptr %76, align 4, !tbaa !5
  %78 = add nsw i32 %77, 1
  %79 = load i32, ptr %10, align 4, !tbaa !5
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds [100001 x i32], ptr @dep, i64 0, i64 %80
  store i32 %78, ptr %81, align 4, !tbaa !5
  %82 = load i32, ptr %10, align 4, !tbaa !5
  %83 = load i32, ptr @tot, align 4, !tbaa !5
  %84 = add nsw i32 %83, 1
  store i32 %84, ptr @tot, align 4, !tbaa !5
  %85 = sext i32 %83 to i64
  %86 = getelementptr inbounds [100001 x i32], ptr @que, i64 0, i64 %85
  store i32 %82, ptr %86, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  store i32 0, ptr %4, align 4
  br label %87

87:                                               ; preds = %68, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  %88 = load i32, ptr %4, align 4
  switch i32 %88, label %97 [
    i32 0, label %89
    i32 6, label %90
  ]

89:                                               ; preds = %87
  br label %90

90:                                               ; preds = %89, %87
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  br label %35

92:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %93

93:                                               ; preds = %92
  %94 = load i32, ptr %3, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %3, align 4, !tbaa !5
  br label %16, !llvm.loop !14

96:                                               ; preds = %20
  ret void

97:                                               ; preds = %87
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4Edge", !6, i64 0, !6, i64 4, !6, i64 8}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"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"

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

@up = external dso_local local_unnamed_addr global [100001 x i32], align 16
@dep = external dso_local local_unnamed_addr global [100001 x i32], align 16
@tot = external dso_local local_unnamed_addr global i32, align 4
@que = external dso_local local_unnamed_addr global [100001 x i32], align 16
@e = external dso_local global [100001 x %"class.std::vector"], align 16
@seq = external dso_local local_unnamed_addr global [200001 x %struct.Edge], align 16

; 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
define dso_local void @_Z3bfsi(i32 noundef %0) local_unnamed_addr #1 {
.lr.ph21.preheader:
  %1 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 1, ptr @tot, align 4, !tbaa !5
  store i32 %0, ptr @que, align 16, !tbaa !5
  br label %.lr.ph21

._crit_edge22:                                    ; preds = %._crit_edge
  ret void

.lr.ph21:                                         ; preds = %.lr.ph21.preheader, %._crit_edge
  %indvars.iv = phi i64 [ 0, %.lr.ph21.preheader ], [ %indvars.iv.next, %._crit_edge ]
  %3 = getelementptr inbounds [100001 x i32], ptr @que, i64 0, i64 %indvars.iv
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @e, i64 0, i64 %5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %7 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  store ptr %7, ptr %1, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %8 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  store ptr %8, ptr %2, align 8
  %9 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.lr.ph21
  %10 = getelementptr inbounds [100001 x i32], ptr @up, i64 0, i64 %5
  %11 = getelementptr inbounds [100001 x i32], ptr @dep, i64 0, i64 %5
  br label %15

._crit_edge:                                      ; preds = %39, %.lr.ph21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i32, ptr @tot, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = icmp slt i64 %indvars.iv.next, %13
  br i1 %14, label %.lr.ph21, label %._crit_edge22, !llvm.loop !9

15:                                               ; preds = %.lr.ph, %39
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #3
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = load i32, ptr %10, align 4, !tbaa !5
  %19 = icmp eq i32 %17, %18
  br i1 %19, label %39, label %20

20:                                               ; preds = %15
  %21 = sext i32 %17 to i64
  %22 = getelementptr inbounds [200001 x %struct.Edge], ptr @seq, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !11
  %24 = icmp eq i32 %4, %23
  br i1 %24, label %25, label %28

25:                                               ; preds = %20
  %26 = getelementptr inbounds i8, ptr %22, i64 4
  %27 = load i32, ptr %26, align 4, !tbaa !13
  br label %28

28:                                               ; preds = %20, %25
  %29 = phi i32 [ %27, %25 ], [ %23, %20 ]
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [100001 x i32], ptr @up, i64 0, i64 %30
  store i32 %17, ptr %31, align 4, !tbaa !5
  %32 = load i32, ptr %11, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  %34 = getelementptr inbounds [100001 x i32], ptr @dep, i64 0, i64 %30
  store i32 %33, ptr %34, align 4, !tbaa !5
  %35 = load i32, ptr @tot, align 4, !tbaa !5
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr @tot, align 4, !tbaa !5
  %37 = sext i32 %35 to i64
  %38 = getelementptr inbounds [100001 x i32], ptr @que, i64 0, i64 %37
  store i32 %29, ptr %38, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %15, %28
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #3
  %41 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  br i1 %41, label %15, label %._crit_edge
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4Edge", !6, i64 0, !6, i64 4, !6, i64 8}
!13 = !{!12, !6, i64 4}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SCCPPass,SROAPass,SimplifyCFGPass