; LLVM IR from xxks-kkk/algo :: queue/arrayImplementation (queue)

; 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.QueueRecord = type { i32, i32, i32, i32, ptr }

@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1

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

4:                                                ; preds = %33, %1
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.QueueRecord, ptr %6, i32 0, i32 0
  %8 = load i32, ptr %7, align 8, !tbaa !11
  %9 = icmp slt i32 %5, %8
  br i1 %9, label %10, label %36

10:                                               ; preds = %4
  %11 = load i32, ptr %3, align 4, !tbaa !9
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.QueueRecord, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 4, !tbaa !13
  %15 = icmp eq i32 %11, %14
  %16 = zext i1 %15 to i64
  %17 = select i1 %15, ptr @.str.2, ptr @.str.3
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.QueueRecord, ptr %18, i32 0, i32 4
  %20 = load ptr, ptr %19, align 8, !tbaa !14
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds i32, ptr %20, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !9
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.QueueRecord, ptr %26, i32 0, i32 2
  %28 = load i32, ptr %27, align 8, !tbaa !15
  %29 = icmp eq i32 %25, %28
  %30 = zext i1 %29 to i64
  %31 = select i1 %29, ptr @.str.4, ptr @.str.3
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, ptr noundef %17, i32 noundef %24, ptr noundef %31)
  br label %33

33:                                               ; preds = %10
  %34 = load i32, ptr %3, align 4, !tbaa !9
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !16

36:                                               ; preds = %4
  %37 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

declare i32 @printf(ptr noundef, ...) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "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 = !{!"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 = !{!12, !10, i64 0}
!12 = !{!"QueueRecord", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !6, i64 16}
!13 = !{!12, !10, i64 4}
!14 = !{!12, !6, i64 16}
!15 = !{!12, !10, i64 8}
!16 = distinct !{!16, !17}
!17 = !{!"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"

@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @printQueue(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i32, ptr %0, align 8, !tbaa !5
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  br label %7

7:                                                ; preds = %.lr.ph, %7
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %7 ]
  %8 = load i32, ptr %4, align 4, !tbaa !11
  %9 = zext i32 %8 to i64
  %10 = icmp eq i64 %indvars.iv, %9
  %11 = select i1 %10, ptr @.str.2, ptr @.str.3
  %12 = load ptr, ptr %5, align 8, !tbaa !12
  %13 = getelementptr inbounds i32, ptr %12, i64 %indvars.iv
  %14 = load i32, ptr %13, align 4, !tbaa !13
  %15 = load i32, ptr %6, align 8, !tbaa !14
  %16 = zext i32 %15 to i64
  %17 = icmp eq i64 %indvars.iv, %16
  %18 = select i1 %17, ptr @.str.4, ptr @.str.3
  %19 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, ptr noundef nonnull %11, i32 noundef %14, ptr noundef nonnull %18)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %0, align 8, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %7, label %._crit_edge, !llvm.loop !15

._crit_edge:                                      ; preds = %7, %1
  %23 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  ret void
}

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

attributes #0 = { nofree 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, !7, i64 0}
!6 = !{!"QueueRecord", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 16}
!13 = !{!7, !7, i64 0}
!14 = !{!6, !7, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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