; LLVM IR from Thre4dripper/DSA-Programs :: 09. Queue/Queue (Array)/Enqueue.ll (Z7enqueueiPiS_S_i)

; 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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [15 x i8], align 1

; 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)) #1

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

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7enqueueiPiS_S_i(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, i32 noundef %4) #0 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !9
  store ptr %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !5
  %12 = load ptr, ptr %9, align 8, !tbaa !9
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = load i32, ptr %10, align 4, !tbaa !5
  %15 = sub nsw i32 %14, 1
  %16 = icmp slt i32 %13, %15
  br i1 %16, label %17, label %55

17:                                               ; preds = %5
  %18 = load ptr, ptr %8, align 8, !tbaa !9
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = icmp eq i32 %19, -1
  br i1 %20, label %21, label %24

21:                                               ; preds = %17
  %22 = load ptr, ptr %9, align 8, !tbaa !9
  store i32 0, ptr %22, align 4, !tbaa !5
  %23 = load ptr, ptr %8, align 8, !tbaa !9
  store i32 0, ptr %23, align 4, !tbaa !5
  br label %28

24:                                               ; preds = %17
  %25 = load ptr, ptr %9, align 8, !tbaa !9
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %25, align 4, !tbaa !5
  br label %28

28:                                               ; preds = %24, %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %29 = load ptr, ptr %9, align 8, !tbaa !9
  %30 = load i32, ptr %29, align 4, !tbaa !5
  store i32 %30, ptr %11, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %48, %28
  %32 = load i32, ptr %11, align 4, !tbaa !5
  %33 = load ptr, ptr %8, align 8, !tbaa !9
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = icmp sgt i32 %32, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %51

37:                                               ; preds = %31
  %38 = load ptr, ptr %7, align 8, !tbaa !9
  %39 = load i32, ptr %11, align 4, !tbaa !5
  %40 = sub nsw i32 %39, 1
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds i32, ptr %38, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = load ptr, ptr %7, align 8, !tbaa !9
  %45 = load i32, ptr %11, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds i32, ptr %44, i64 %46
  store i32 %43, ptr %47, align 4, !tbaa !5
  br label %48

48:                                               ; preds = %37
  %49 = load i32, ptr %11, align 4, !tbaa !5
  %50 = add nsw i32 %49, -1
  store i32 %50, ptr %11, align 4, !tbaa !5
  br label %31, !llvm.loop !11

51:                                               ; preds = %36
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = load ptr, ptr %7, align 8, !tbaa !9
  %54 = getelementptr inbounds i32, ptr %53, i64 0
  store i32 %52, ptr %54, align 4, !tbaa !5
  br label %58

55:                                               ; preds = %5
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %56, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %58

58:                                               ; preds = %55, %51
  ret void
}

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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!11, !12}
!12 = !{!"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::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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [15 x i8], align 1

; 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)) #1

; 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 #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7enqueueiPiS_S_i(i32 noundef %0, ptr nocapture noundef %1, ptr nocapture noundef %2, ptr nocapture noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = add nsw i32 %4, -1
  %8 = icmp slt i32 %6, %7
  br i1 %8, label %9, label %26

9:                                                ; preds = %5
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = icmp eq i32 %10, -1
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  store i32 0, ptr %3, align 4, !tbaa !5
  store i32 0, ptr %2, align 4, !tbaa !5
  %.pre = load i32, ptr %3, align 4, !tbaa !5
  br label %15

13:                                               ; preds = %9
  %14 = add nsw i32 %6, 1
  store i32 %14, ptr %3, align 4, !tbaa !5
  %.pre18 = load i32, ptr %2, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %13, %12
  %16 = phi i32 [ %.pre18, %13 ], [ 0, %12 ]
  %17 = phi i32 [ %14, %13 ], [ %.pre, %12 ]
  %18 = icmp sgt i32 %17, %16
  br i1 %18, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %15
  %19 = sext i32 %17 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %15
  store i32 %0, ptr %1, align 4, !tbaa !5
  br label %29

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %19, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %20 = getelementptr i32, ptr %1, i64 %indvars.iv
  %21 = getelementptr i8, ptr %20, i64 -4
  %22 = load i32, ptr %21, align 4, !tbaa !5
  store i32 %22, ptr %20, align 4, !tbaa !5
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = icmp sgt i64 %indvars.iv.next, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !9

26:                                               ; preds = %5
  %27 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %28 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %27, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %29

29:                                               ; preds = %26, %._crit_edge
  ret void
}

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 = { 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" }

!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"}


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