; LLVM IR from ShahjalalShohag/code-library :: Graph Theory/Path Intersection.ll (Z17path_intersectioniiii)

; 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 }

; 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 noundef i32 @_Z3lcaii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z13getCommonPathiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z16path_union_lightSt4pairIiiES0_(i64, i64) #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) #3

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z17path_intersectioniiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #2 {
  %5 = alloca %"struct.std::pair", align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"struct.std::pair", align 4
  %15 = alloca %"struct.std::pair", align 4
  %16 = alloca %"struct.std::pair", align 4
  %17 = alloca %"struct.std::pair", align 4
  %18 = alloca %"struct.std::pair", align 4
  %19 = alloca %"struct.std::pair", align 4
  %20 = alloca %"struct.std::pair", align 4
  %21 = alloca %"struct.std::pair", align 4
  %22 = alloca %"struct.std::pair", align 4
  %23 = alloca %"struct.std::pair", align 4
  %24 = alloca %"struct.std::pair", align 4
  %25 = alloca %"struct.std::pair", align 4
  %26 = alloca %"struct.std::pair", align 4
  %27 = alloca %"struct.std::pair", align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  %28 = load i32, ptr %6, align 4, !tbaa !5
  %29 = icmp eq i32 %28, 0
  br i1 %29, label %33, label %30

30:                                               ; preds = %4
  %31 = load i32, ptr %7, align 4, !tbaa !5
  %32 = icmp eq i32 %31, 0
  br i1 %32, label %33, label %34

33:                                               ; preds = %30, %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  store i32 0, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %5, ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %11)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %74

34:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = call noundef i32 @_Z3lcaii(i32 noundef %35, i32 noundef %36)
  store i32 %37, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  %38 = load i32, ptr %8, align 4, !tbaa !5
  %39 = load i32, ptr %9, align 4, !tbaa !5
  %40 = call noundef i32 @_Z3lcaii(i32 noundef %38, i32 noundef %39)
  store i32 %40, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #4
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %14)
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #4
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %15)
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  %41 = load i32, ptr %12, align 4, !tbaa !5
  %42 = load i32, ptr %6, align 4, !tbaa !5
  %43 = load i32, ptr %13, align 4, !tbaa !5
  %44 = load i32, ptr %8, align 4, !tbaa !5
  %45 = call i64 @_Z13getCommonPathiiii(i32 noundef %41, i32 noundef %42, i32 noundef %43, i32 noundef %44)
  store i64 %45, ptr %16, align 4
  %46 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %14, ptr noundef nonnull align 4 dereferenceable(8) %16) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #4
  %47 = load i32, ptr %12, align 4, !tbaa !5
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = load i32, ptr %13, align 4, !tbaa !5
  %50 = load i32, ptr %9, align 4, !tbaa !5
  %51 = call i64 @_Z13getCommonPathiiii(i32 noundef %47, i32 noundef %48, i32 noundef %49, i32 noundef %50)
  store i64 %51, ptr %17, align 4
  %52 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %15, ptr noundef nonnull align 4 dereferenceable(8) %17) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %19, ptr align 4 %14, i64 8, i1 false)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %20, ptr align 4 %15, i64 8, i1 false)
  %53 = load i64, ptr %19, align 4
  %54 = load i64, ptr %20, align 4
  %55 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %53, i64 %54)
  store i64 %55, ptr %18, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #4
  %56 = load i32, ptr %12, align 4, !tbaa !5
  %57 = load i32, ptr %7, align 4, !tbaa !5
  %58 = load i32, ptr %13, align 4, !tbaa !5
  %59 = load i32, ptr %8, align 4, !tbaa !5
  %60 = call i64 @_Z13getCommonPathiiii(i32 noundef %56, i32 noundef %57, i32 noundef %58, i32 noundef %59)
  store i64 %60, ptr %21, align 4
  %61 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %14, ptr noundef nonnull align 4 dereferenceable(8) %21) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %22) #4
  %62 = load i32, ptr %12, align 4, !tbaa !5
  %63 = load i32, ptr %7, align 4, !tbaa !5
  %64 = load i32, ptr %13, align 4, !tbaa !5
  %65 = load i32, ptr %9, align 4, !tbaa !5
  %66 = call i64 @_Z13getCommonPathiiii(i32 noundef %62, i32 noundef %63, i32 noundef %64, i32 noundef %65)
  store i64 %66, ptr %22, align 4
  %67 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %15, ptr noundef nonnull align 4 dereferenceable(8) %22) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %22) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %23) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %24, ptr align 4 %14, i64 8, i1 false)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %25, ptr align 4 %15, i64 8, i1 false)
  %68 = load i64, ptr %24, align 4
  %69 = load i64, ptr %25, align 4
  %70 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %68, i64 %69)
  store i64 %70, ptr %23, align 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %26, ptr align 4 %18, i64 8, i1 false)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %27, ptr align 4 %23, i64 8, i1 false)
  %71 = load i64, ptr %26, align 4
  %72 = load i64, ptr %27, align 4
  %73 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %71, i64 %72)
  store i64 %73, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %74

74:                                               ; preds = %34, %33
  %75 = load i64, ptr %5, align 4
  ret i64 %75
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(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 nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 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 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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"}


; 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 noundef i32 @_Z3lcaii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z13getCommonPathiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z16path_union_lightSt4pairIiiES0_(i64, i64) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z17path_intersectioniiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #2 {
  %5 = alloca %"struct.std::pair", align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca %"struct.std::pair", align 8
  %10 = alloca %"struct.std::pair", align 8
  %11 = alloca %"struct.std::pair", align 8
  %12 = alloca %"struct.std::pair", align 8
  %13 = alloca %"struct.std::pair", align 8
  %14 = icmp eq i32 %0, 0
  %15 = icmp eq i32 %1, 0
  %or.cond = or i1 %14, %15
  br i1 %or.cond, label %16, label %17

16:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #3
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %5, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  %.pre = load i64, ptr %5, align 8
  br label %31

17:                                               ; preds = %4
  %18 = tail call noundef i32 @_Z3lcaii(i32 noundef %0, i32 noundef %1)
  %19 = tail call noundef i32 @_Z3lcaii(i32 noundef %2, i32 noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #3
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %8)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #3
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %9)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #3
  %20 = call i64 @_Z13getCommonPathiiii(i32 noundef %18, i32 noundef %0, i32 noundef %19, i32 noundef %2)
  store i64 %20, ptr %10, align 8
  %21 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(8) %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #3
  %22 = call i64 @_Z13getCommonPathiiii(i32 noundef %18, i32 noundef %0, i32 noundef %19, i32 noundef %3)
  store i64 %22, ptr %11, align 8
  %23 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %9, ptr noundef nonnull align 4 dereferenceable(8) %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #3
  %.sroa.07.0.copyload = load i64, ptr %8, align 8
  %.sroa.06.0.copyload = load i64, ptr %9, align 8
  %24 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %.sroa.07.0.copyload, i64 %.sroa.06.0.copyload)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #3
  %25 = call i64 @_Z13getCommonPathiiii(i32 noundef %18, i32 noundef %1, i32 noundef %19, i32 noundef %2)
  store i64 %25, ptr %12, align 8
  %26 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(8) %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %13) #3
  %27 = call i64 @_Z13getCommonPathiiii(i32 noundef %18, i32 noundef %1, i32 noundef %19, i32 noundef %3)
  store i64 %27, ptr %13, align 8
  %28 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %9, ptr noundef nonnull align 4 dereferenceable(8) %13) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #3
  %.sroa.04.0.copyload = load i64, ptr %8, align 8
  %.sroa.03.0.copyload = load i64, ptr %9, align 8
  %29 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %.sroa.04.0.copyload, i64 %.sroa.03.0.copyload)
  %30 = call i64 @_Z16path_union_lightSt4pairIiiES0_(i64 %24, i64 %29)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #3
  br label %31

31:                                               ; preds = %17, %16
  %32 = phi i64 [ %30, %17 ], [ %.pre, %16 ]
  ret i64 %32
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(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 nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 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 = { 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 = { 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"}


; Effective O3 passes: DSEPass,GVNPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass