; LLVM IR from kala13x/libxutils :: src/data (array)

; 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: 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
declare dso_local i32 @XArray_Partitioning(ptr noundef, ptr noundef, ptr noundef, i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @XArray_QuickSort(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  %12 = load i32, ptr %9, align 4, !tbaa !9
  %13 = load i32, ptr %10, align 4, !tbaa !9
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %15, label %33

15:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = load i32, ptr %9, align 4, !tbaa !9
  %20 = load i32, ptr %10, align 4, !tbaa !9
  %21 = call i32 @XArray_Partitioning(ptr noundef %16, ptr noundef %17, ptr noundef %18, i32 noundef %19, i32 noundef %20)
  store i32 %21, ptr %11, align 4, !tbaa !9
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = load i32, ptr %9, align 4, !tbaa !9
  %26 = load i32, ptr %11, align 4, !tbaa !9
  call void @XArray_QuickSort(ptr noundef %22, ptr noundef %23, ptr noundef %24, i32 noundef %25, i32 noundef %26)
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = load i32, ptr %11, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  %32 = load i32, ptr %10, align 4, !tbaa !9
  call void @XArray_QuickSort(ptr noundef %27, ptr noundef %28, ptr noundef %29, i32 noundef %31, i32 noundef %32)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  br label %33

33:                                               ; preds = %15, %5
  ret void
}

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 = { 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}


; 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 i32 @XArray_Partitioning(ptr noundef, ptr noundef, ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @XArray_QuickSort(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = icmp slt i32 %3, %4
  br i1 %6, label %tailrecurse, label %tailrecurse._crit_edge

tailrecurse:                                      ; preds = %5, %tailrecurse
  %.tr1921 = phi i32 [ %8, %tailrecurse ], [ %3, %5 ]
  %7 = tail call i32 @XArray_Partitioning(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %.tr1921, i32 noundef %4)
  tail call void @XArray_QuickSort(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %.tr1921, i32 noundef %7)
  %8 = add nsw i32 %7, 1
  %9 = icmp slt i32 %8, %4
  br i1 %9, label %tailrecurse, label %tailrecurse._crit_edge

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %5
  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" }

!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: GlobalOptPass,InferFunctionAttrsPass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass