; LLVM IR from Thre4dripper/DSA-Programs :: 17. Sorting Algorithms/RadixSort.ll (Z12InsertBucketiiPP4Node)

; 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.Node = type { i32, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12InsertBucketiiPP4Node(i32 noundef %0, i32 noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %9 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #4
  store ptr %9, ptr %7, align 8, !tbaa !9
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = load ptr, ptr %7, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.Node, ptr %11, i32 0, i32 0
  store i32 %10, ptr %12, align 8, !tbaa !11
  %13 = load ptr, ptr %7, align 8, !tbaa !9
  %14 = getelementptr inbounds %struct.Node, ptr %13, i32 0, i32 1
  store ptr null, ptr %14, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %15 = load ptr, ptr %6, align 8, !tbaa !9
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds ptr, ptr %15, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  store ptr %19, ptr %8, align 8, !tbaa !9
  %20 = load ptr, ptr %8, align 8, !tbaa !9
  %21 = icmp eq ptr %20, null
  br i1 %21, label %22, label %28

22:                                               ; preds = %3
  %23 = load ptr, ptr %7, align 8, !tbaa !9
  %24 = load ptr, ptr %6, align 8, !tbaa !9
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds ptr, ptr %24, i64 %26
  store ptr %23, ptr %27, align 8, !tbaa !9
  br label %42

28:                                               ; preds = %3
  br label %29

29:                                               ; preds = %34, %28
  %30 = load ptr, ptr %8, align 8, !tbaa !9
  %31 = getelementptr inbounds %struct.Node, ptr %30, i32 0, i32 1
  %32 = load ptr, ptr %31, align 8, !tbaa !13
  %33 = icmp ne ptr %32, null
  br i1 %33, label %34, label %38

34:                                               ; preds = %29
  %35 = load ptr, ptr %8, align 8, !tbaa !9
  %36 = getelementptr inbounds %struct.Node, ptr %35, i32 0, i32 1
  %37 = load ptr, ptr %36, align 8, !tbaa !13
  store ptr %37, ptr %8, align 8, !tbaa !9
  br label %29, !llvm.loop !14

38:                                               ; preds = %29
  %39 = load ptr, ptr %7, align 8, !tbaa !9
  %40 = load ptr, ptr %8, align 8, !tbaa !9
  %41 = getelementptr inbounds %struct.Node, ptr %40, i32 0, i32 1
  store ptr %39, ptr %41, align 8, !tbaa !13
  br label %42

42:                                               ; preds = %38, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

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

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nobuiltin allocsize(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 #3 = { nounwind }
attributes #4 = { builtin allocsize(0) }

!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 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4Node", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"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"

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12InsertBucketiiPP4Node(i32 noundef %0, i32 noundef %1, ptr nocapture noundef %2) local_unnamed_addr #0 {
  %4 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #2
  store i32 %0, ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr null, ptr %5, align 8, !tbaa !11
  %6 = sext i32 %1 to i64
  %7 = getelementptr inbounds ptr, ptr %2, i64 %6
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = icmp eq ptr %8, null
  br i1 %9, label %14, label %.preheader

.preheader:                                       ; preds = %3, %.preheader
  %.0 = phi ptr [ %11, %.preheader ], [ %8, %3 ]
  %10 = getelementptr inbounds i8, ptr %.0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %12, label %.preheader, !llvm.loop !13

12:                                               ; preds = %.preheader
  %13 = getelementptr inbounds i8, ptr %.0, i64 8
  br label %14

14:                                               ; preds = %3, %12
  %.sink = phi ptr [ %13, %12 ], [ %7, %3 ]
  store ptr %4, ptr %.sink, align 8, !tbaa !12
  ret void
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

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 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 = !{!"_ZTS4Node", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!10, !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass