; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Data-Structures/Stack (stack_using_two_queues)

; 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_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.Stack = type { %"class.std::queue", %"class.std::queue" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

@__const.main.a = external hidden unnamed_addr constant [4 x i32], align 16
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca [4 x i32], align 16
  %3 = alloca i32, align 4
  %4 = alloca %class.Stack, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 16, ptr %2) #7
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.main.a, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 4, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 160, ptr %4) #7
  call void @_ZN5StackC2Ev(ptr noundef nonnull align 8 dereferenceable(160) %4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %20, %0
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %27

14:                                               ; preds = %9
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [4 x i32], ptr %2, i64 0, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !5
  invoke void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160) %4, i32 noundef %18)
          to label %19 unwind label %23

19:                                               ; preds = %14
  br label %20

20:                                               ; preds = %19
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %5, align 4, !tbaa !5
  br label %9, !llvm.loop !9

23:                                               ; preds = %14
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %6, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %49

27:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %28

28:                                               ; preds = %40, %27
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = load i32, ptr %3, align 4, !tbaa !5
  %31 = icmp slt i32 %29, %30
  br i1 %31, label %33, label %32

32:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %47

33:                                               ; preds = %28
  %34 = invoke noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160) %4)
          to label %35 unwind label %43

35:                                               ; preds = %33
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %34)
          to label %37 unwind label %43

37:                                               ; preds = %35
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %39 unwind label %43

39:                                               ; preds = %37
  br label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %8, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %8, align 4, !tbaa !5
  br label %28, !llvm.loop !11

43:                                               ; preds = %37, %35, %33
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %6, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %49

47:                                               ; preds = %32
  store i32 0, ptr %1, align 4
  call void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160) %4) #7
  call void @llvm.lifetime.end.p0(i64 160, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %2) #7
  %48 = load i32, ptr %1, align 4
  ret i32 %48

49:                                               ; preds = %43, %23
  call void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160) %4) #7
  call void @llvm.lifetime.end.p0(i64 160, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %2) #7
  br label %50

50:                                               ; preds = %49
  %51 = load ptr, ptr %6, align 8
  %52 = load i32, ptr %7, align 4
  %53 = insertvalue { ptr, i32 } poison, ptr %51, 0
  %54 = insertvalue { ptr, i32 } %53, i32 %52, 1
  resume { ptr, i32 } %54
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; 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) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5StackC2Ev(ptr noundef nonnull align 8 dereferenceable(160)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160), i32 noundef) #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160)) #4 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4 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)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160)) unnamed_addr #6 align 2

attributes #0 = { mustprogress norecurse 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 = { nocallback nofree 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 = { 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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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_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.Stack = type { %"class.std::queue", %"class.std::queue" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

@__const.main.a = external hidden unnamed_addr constant [4 x i32], align 16
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %class.Stack, align 8
  call void @llvm.lifetime.start.p0(i64 160, ptr nonnull %1) #6
  call void @_ZN5StackC2Ev(ptr noundef nonnull align 8 dereferenceable(160) %1)
  %2 = load i32, ptr @__const.main.a, align 16, !tbaa !5
  invoke void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160) %1, i32 noundef %2)
          to label %3 unwind label %10

3:                                                ; preds = %0
  %4 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.a, i64 4), align 4, !tbaa !5
  invoke void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160) %1, i32 noundef %4)
          to label %5 unwind label %10

5:                                                ; preds = %3
  %6 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.a, i64 8), align 8, !tbaa !5
  invoke void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160) %1, i32 noundef %6)
          to label %7 unwind label %10

7:                                                ; preds = %5
  %8 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.a, i64 12), align 4, !tbaa !5
  invoke void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160) %1, i32 noundef %8)
          to label %.preheader.preheader unwind label %10

.preheader.preheader:                             ; preds = %7
  %9 = invoke noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160) %1)
          to label %12 unwind label %32

10:                                               ; preds = %7, %5, %3, %0
  %11 = landingpad { ptr, i32 }
          cleanup
  br label %34

12:                                               ; preds = %.preheader.preheader
  %13 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %9)
          to label %14 unwind label %32

14:                                               ; preds = %12
  %15 = invoke 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_)
          to label %.preheader.1 unwind label %32

.preheader.1:                                     ; preds = %14
  %16 = invoke noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160) %1)
          to label %17 unwind label %32

17:                                               ; preds = %.preheader.1
  %18 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %16)
          to label %19 unwind label %32

19:                                               ; preds = %17
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %18, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %.preheader.2 unwind label %32

.preheader.2:                                     ; preds = %19
  %21 = invoke noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160) %1)
          to label %22 unwind label %32

22:                                               ; preds = %.preheader.2
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %21)
          to label %24 unwind label %32

24:                                               ; preds = %22
  %25 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %.preheader.3 unwind label %32

.preheader.3:                                     ; preds = %24
  %26 = invoke noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160) %1)
          to label %27 unwind label %32

27:                                               ; preds = %.preheader.3
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %26)
          to label %29 unwind label %32

29:                                               ; preds = %27
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %28, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %31 unwind label %32

31:                                               ; preds = %29
  call void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160) %1) #6
  call void @llvm.lifetime.end.p0(i64 160, ptr nonnull %1) #6
  ret i32 0

32:                                               ; preds = %29, %27, %.preheader.3, %24, %22, %.preheader.2, %19, %17, %.preheader.1, %14, %12, %.preheader.preheader
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %34

34:                                               ; preds = %32, %10
  %.pn = phi { ptr, i32 } [ %11, %10 ], [ %33, %32 ]
  call void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160) %1) #6
  call void @llvm.lifetime.end.p0(i64 160, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5StackC2Ev(ptr noundef nonnull align 8 dereferenceable(160)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5Stack4pushEi(ptr noundef nonnull align 8 dereferenceable(160), i32 noundef) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5Stack3popEv(ptr noundef nonnull align 8 dereferenceable(160)) local_unnamed_addr #3 align 2

; 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 #3 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)) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5StackD2Ev(ptr noundef nonnull align 8 dereferenceable(160)) unnamed_addr #5 align 2

attributes #0 = { mustprogress norecurse 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 = { 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 #3 = { 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 = { "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 = { 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 #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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,SROAPass,SimplifyCFGPass