; LLVM IR from AlgoGenesis/C :: Queue/DoubleEndedQueue (DoubleEndedQueue)

; 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"

@front = external dso_local global i32, align 4
@rear = external dso_local global i32, align 4
@deque = external dso_local global [5 x i32], align 16
@.str.6 = external hidden unnamed_addr constant [68 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @isEmpty() #0

declare i32 @printf(ptr noundef, ...) #1

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

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

; Function Attrs: nounwind uwtable
define dso_local void @deleteRear() #0 {
  %1 = alloca i32, align 4
  %2 = call i32 @isEmpty()
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %4, label %6

4:                                                ; preds = %0
  %5 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  br label %26

6:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  %7 = load i32, ptr @rear, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [5 x i32], ptr @deque, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %10, ptr %1, align 4, !tbaa !5
  %11 = load i32, ptr @front, align 4, !tbaa !5
  %12 = load i32, ptr @rear, align 4, !tbaa !5
  %13 = icmp eq i32 %11, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %6
  store i32 -1, ptr @front, align 4, !tbaa !5
  store i32 -1, ptr @rear, align 4, !tbaa !5
  br label %23

15:                                               ; preds = %6
  %16 = load i32, ptr @rear, align 4, !tbaa !5
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i32 4, ptr @rear, align 4, !tbaa !5
  br label %22

19:                                               ; preds = %15
  %20 = load i32, ptr @rear, align 4, !tbaa !5
  %21 = sub nsw i32 %20, 1
  store i32 %21, ptr @rear, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %19, %18
  br label %23

23:                                               ; preds = %22, %14
  %24 = load i32, ptr %1, align 4, !tbaa !5
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.7, i32 noundef %24)
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  br label %26

26:                                               ; preds = %23, %4
  ret void
}

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 = { "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/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"

@front = external dso_local local_unnamed_addr global i32, align 4
@rear = external dso_local local_unnamed_addr global i32, align 4
@deque = external dso_local local_unnamed_addr global [5 x i32], align 16
@.str.6 = external hidden unnamed_addr constant [68 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @isEmpty() local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @deleteRear() local_unnamed_addr #0 {
  %1 = tail call i32 @isEmpty()
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %4, label %2

2:                                                ; preds = %0
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  br label %17

4:                                                ; preds = %0
  %5 = load i32, ptr @rear, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = getelementptr inbounds [5 x i32], ptr @deque, i64 0, i64 %6
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = load i32, ptr @front, align 4, !tbaa !5
  %10 = icmp eq i32 %9, %5
  br i1 %10, label %11, label %12

11:                                               ; preds = %4
  store i32 -1, ptr @front, align 4, !tbaa !5
  br label %15

12:                                               ; preds = %4
  %13 = icmp eq i32 %5, 0
  %14 = add nsw i32 %5, -1
  %spec.select = select i1 %13, i32 4, i32 %14
  br label %15

15:                                               ; preds = %12, %11
  %.sink = phi i32 [ -1, %11 ], [ %spec.select, %12 ]
  store i32 %.sink, ptr @rear, align 4, !tbaa !5
  %16 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef %8)
  br label %17

17:                                               ; preds = %15, %2
  ret void
}

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 = { nofree nounwind "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/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass