; LLVM IR from KishanBGajera/2024-366-Days-Of-DSA :: Data Structures/Linear/Queue/DEQueue/C (main)

; 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"

; Function Attrs: nounwind uwtable
declare dso_local ptr @getDequeue(i32 noundef) #0

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

; Function Attrs: nounwind uwtable
declare dso_local void @DQ_EnqueueFront(ptr noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @DQ_EnqueueRear(ptr noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @DQ_dequeueFront(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @DQ_dequeueRear(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @printDQ(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @freeDQ(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #2
  %7 = call ptr @getDequeue(i32 noundef 10)
  store ptr %7, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 1, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %15, %0
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = icmp sle i32 %9, 5
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  br label %18

12:                                               ; preds = %8
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = load i32, ptr %3, align 4, !tbaa !9
  call void @DQ_EnqueueFront(ptr noundef %13, i32 noundef %14)
  br label %15

15:                                               ; preds = %12
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !11

18:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 6, ptr %4, align 4, !tbaa !9
  br label %19

19:                                               ; preds = %26, %18
  %20 = load i32, ptr %4, align 4, !tbaa !9
  %21 = icmp sle i32 %20, 10
  br i1 %21, label %23, label %22

22:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  br label %29

23:                                               ; preds = %19
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = load i32, ptr %4, align 4, !tbaa !9
  call void @DQ_EnqueueRear(ptr noundef %24, i32 noundef %25)
  br label %26

26:                                               ; preds = %23
  %27 = load i32, ptr %4, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %4, align 4, !tbaa !9
  br label %19, !llvm.loop !13

29:                                               ; preds = %22
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  call void @printDQ(ptr noundef %30)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 1, ptr %5, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %38, %29
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = icmp sle i32 %32, 3
  br i1 %33, label %35, label %34

34:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %41

35:                                               ; preds = %31
  %36 = load ptr, ptr %2, align 8, !tbaa !5
  %37 = call i32 @DQ_dequeueFront(ptr noundef %36)
  br label %38

38:                                               ; preds = %35
  %39 = load i32, ptr %5, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %5, align 4, !tbaa !9
  br label %31, !llvm.loop !14

41:                                               ; preds = %34
  %42 = load ptr, ptr %2, align 8, !tbaa !5
  call void @printDQ(ptr noundef %42)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %43

43:                                               ; preds = %50, %41
  %44 = load i32, ptr %6, align 4, !tbaa !9
  %45 = icmp sle i32 %44, 2
  br i1 %45, label %47, label %46

46:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %53

47:                                               ; preds = %43
  %48 = load ptr, ptr %2, align 8, !tbaa !5
  %49 = call i32 @DQ_dequeueRear(ptr noundef %48)
  br label %50

50:                                               ; preds = %47
  %51 = load i32, ptr %6, align 4, !tbaa !9
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %6, align 4, !tbaa !9
  br label %43, !llvm.loop !15

53:                                               ; preds = %46
  %54 = load ptr, ptr %2, align 8, !tbaa !5
  call void @printDQ(ptr noundef %54)
  %55 = load ptr, ptr %2, align 8, !tbaa !5
  call void @freeDQ(ptr noundef %55)
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #2
  ret i32 0
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


; 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"

; Function Attrs: nounwind uwtable
declare dso_local ptr @getDequeue(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @DQ_EnqueueFront(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @DQ_EnqueueRear(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @DQ_dequeueFront(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @DQ_dequeueRear(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @printDQ(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @freeDQ(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
.preheader.preheader:
  %0 = tail call ptr @getDequeue(i32 noundef 10)
  tail call void @DQ_EnqueueFront(ptr noundef %0, i32 noundef 1)
  tail call void @DQ_EnqueueFront(ptr noundef %0, i32 noundef 2)
  tail call void @DQ_EnqueueFront(ptr noundef %0, i32 noundef 3)
  tail call void @DQ_EnqueueFront(ptr noundef %0, i32 noundef 4)
  tail call void @DQ_EnqueueFront(ptr noundef %0, i32 noundef 5)
  tail call void @DQ_EnqueueRear(ptr noundef %0, i32 noundef 6)
  tail call void @DQ_EnqueueRear(ptr noundef %0, i32 noundef 7)
  tail call void @DQ_EnqueueRear(ptr noundef %0, i32 noundef 8)
  tail call void @DQ_EnqueueRear(ptr noundef %0, i32 noundef 9)
  tail call void @DQ_EnqueueRear(ptr noundef %0, i32 noundef 10)
  tail call void @printDQ(ptr noundef %0)
  %1 = tail call i32 @DQ_dequeueFront(ptr noundef %0)
  %2 = tail call i32 @DQ_dequeueFront(ptr noundef %0)
  %3 = tail call i32 @DQ_dequeueFront(ptr noundef %0)
  tail call void @printDQ(ptr noundef %0)
  %4 = tail call i32 @DQ_dequeueRear(ptr noundef %0)
  %5 = tail call i32 @DQ_dequeueRear(ptr noundef %0)
  tail call void @printDQ(ptr noundef %0)
  tail call void @freeDQ(ptr noundef %0)
  ret i32 0
}

attributes #0 = { 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" }

!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: GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass