; LLVM IR from Voultapher/sort-research-rs :: src/cpp/thirdparty/scandum (bench)

; 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 allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local void @quadsort128(ptr noundef, i64 noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local void @flux_analyze128(ptr noundef, ptr noundef, i64 noundef, i64 noundef, ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local void @fluxsort128(ptr noundef %0, i64 noundef %1, ptr noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %10, ptr %7, align 8, !tbaa !5
  %11 = load i64, ptr %5, align 8, !tbaa !9
  %12 = icmp ule i64 %11, 132
  br i1 %12, label %13, label %17

13:                                               ; preds = %3
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = load i64, ptr %5, align 8, !tbaa !9
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  call void @quadsort128(ptr noundef %14, i64 noundef %15, ptr noundef %16)
  br label %37

17:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = mul i64 %18, 16
  %20 = call noalias ptr @malloc(i64 noundef %19) #5
  store ptr %20, ptr %8, align 8, !tbaa !5
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %27

23:                                               ; preds = %17
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = load i64, ptr %5, align 8, !tbaa !9
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  call void @quadsort128(ptr noundef %24, i64 noundef %25, ptr noundef %26)
  store i32 1, ptr %9, align 4
  br label %34

27:                                               ; preds = %17
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = load i64, ptr %5, align 8, !tbaa !9
  %31 = load i64, ptr %5, align 8, !tbaa !9
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  call void @flux_analyze128(ptr noundef %28, ptr noundef %29, i64 noundef %30, i64 noundef %31, ptr noundef %32)
  %33 = load ptr, ptr %8, align 8, !tbaa !5
  call void @free(ptr noundef %33) #4
  store i32 0, ptr %9, align 4
  br label %34

34:                                               ; preds = %27, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %35 = load i32, ptr %9, align 4
  switch i32 %35, label %38 [
    i32 0, label %36
  ]

36:                                               ; preds = %34
  br label %37

37:                                               ; preds = %36, %13
  store i32 0, ptr %9, align 4
  br label %38

38:                                               ; preds = %37, %34
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  %39 = load i32, ptr %9, align 4
  switch i32 %39, label %41 [
    i32 0, label %40
    i32 1, label %40
  ]

40:                                               ; preds = %38, %38
  ret void

41:                                               ; preds = %38
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind 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 = { 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" }
attributes #3 = { 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 #4 = { nounwind }
attributes #5 = { nounwind 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !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: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @quadsort128(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local void @flux_analyze128(ptr noundef, ptr noundef, i64 noundef, i64 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @fluxsort128(ptr noundef %0, i64 noundef %1, ptr noundef %2) local_unnamed_addr #2 {
  %4 = icmp ult i64 %1, 133
  br i1 %4, label %5, label %6

5:                                                ; preds = %3
  tail call void @quadsort128(ptr noundef %0, i64 noundef %1, ptr noundef %2)
  br label %11

6:                                                ; preds = %3
  %7 = shl i64 %1, 4
  %8 = tail call noalias ptr @malloc(i64 noundef %7) #3
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %9, label %10

9:                                                ; preds = %6
  tail call void @quadsort128(ptr noundef %0, i64 noundef %1, ptr noundef %2)
  br label %11

10:                                               ; preds = %6
  tail call void @flux_analyze128(ptr noundef %0, ptr noundef nonnull %8, i64 noundef %1, i64 noundef %1, ptr noundef %2)
  tail call void @free(ptr noundef nonnull %8) #4
  br label %11

11:                                               ; preds = %9, %10, %5
  ret void
}

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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 #3 = { nounwind allocsize(0) }
attributes #4 = { 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)"}


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