; LLVM IR from QUILL-PIC/Quill :: src/balancing.ll (Z18retrieve_partitionRK7array2dIiEiii)

; 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"

%"class.std::vector.139" = type { %"struct.std::_Vector_base.140" }
%"struct.std::_Vector_base.140" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::allocator.141" = type { i8 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18retrieve_partitionRK7array2dIiEiii(ptr dead_on_unwind noalias writable sret(%"class.std::vector.139") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 personality ptr @__gxx_personality_v0 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::initializer_list", align 8
  %13 = alloca [1 x i32], align 4
  %14 = alloca %"class.std::allocator.141", align 1
  %15 = alloca ptr, align 8
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i1, align 1
  %19 = alloca i32, align 4
  store ptr %0, ptr %6, align 8
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = load i32, ptr %9, align 4, !tbaa !9
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK7array2dIiEclEii(ptr noundef nonnull align 8 dereferenceable(32) %20, i32 noundef %21, i32 noundef %22)
  %24 = load i32, ptr %23, align 4, !tbaa !9
  store i32 %24, ptr %11, align 4, !tbaa !9
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = icmp eq i32 %25, 0
  br i1 %26, label %27, label %40

27:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %28 = load i32, ptr %11, align 4, !tbaa !9
  store i32 %28, ptr %13, align 4, !tbaa !9
  %29 = getelementptr inbounds %"class.std::initializer_list", ptr %12, i32 0, i32 0
  store ptr %13, ptr %29, align 8, !tbaa !11
  %30 = getelementptr inbounds %"class.std::initializer_list", ptr %12, i32 0, i32 1
  store i64 1, ptr %30, align 8, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #3
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  %31 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8
  %33 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %34 = load i64, ptr %33, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %32, i64 %34, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %35 unwind label %36

35:                                               ; preds = %27
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  store i32 1, ptr %17, align 4
  br label %58

36:                                               ; preds = %27
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %15, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %16, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %59

40:                                               ; preds = %5
  store i1 false, ptr %18, align 1
  %41 = load ptr, ptr %7, align 8, !tbaa !5
  %42 = load i32, ptr %8, align 4, !tbaa !9
  %43 = sub nsw i32 %42, 1
  %44 = load i32, ptr %11, align 4, !tbaa !9
  %45 = load i32, ptr %10, align 4, !tbaa !9
  call void @_Z18retrieve_partitionRK7array2dIiEiii(ptr dead_on_unwind writable sret(%"class.std::vector.139") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %41, i32 noundef %43, i32 noundef %44, i32 noundef %45)
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #3
  %46 = load i32, ptr %11, align 4, !tbaa !9
  %47 = load i32, ptr %10, align 4, !tbaa !9
  %48 = sub nsw i32 %46, %47
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %19, align 4, !tbaa !9
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %19)
          to label %50 unwind label %52

50:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #3
  store i1 true, ptr %18, align 1
  store i32 1, ptr %17, align 4
  %51 = load i1, ptr %18, align 1
  br i1 %51, label %57, label %56

52:                                               ; preds = %40
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %15, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %16, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %59

56:                                               ; preds = %50
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %57

57:                                               ; preds = %56, %50
  br label %58

58:                                               ; preds = %57, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  ret void

59:                                               ; preds = %52, %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %60

60:                                               ; preds = %59
  %61 = load ptr, ptr %15, align 8
  %62 = load i32, ptr %16, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK7array2dIiEclEii(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress 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 }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt16initializer_listIiE", !6, i64 0, !13, i64 8}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !13, i64 8}


; 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"

%"class.std::vector.139" = type { %"struct.std::_Vector_base.140" }
%"struct.std::_Vector_base.140" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.141" = type { i8 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18retrieve_partitionRK7array2dIiEiii(ptr dead_on_unwind noalias writable sret(%"class.std::vector.139") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %6 = alloca [1 x i32], align 4
  %7 = alloca %"class.std::allocator.141", align 1
  %8 = alloca i32, align 4
  %9 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK7array2dIiEclEii(ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %2, i32 noundef %3)
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = icmp eq i32 %2, 0
  br i1 %11, label %12, label %16

12:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  store i32 %10, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #3
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr nonnull %6, i64 1, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %13 unwind label %14

13:                                               ; preds = %12
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  br label %22

14:                                               ; preds = %12
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  br label %23

16:                                               ; preds = %5
  %17 = add nsw i32 %2, -1
  tail call void @_Z18retrieve_partitionRK7array2dIiEiii(ptr dead_on_unwind writable sret(%"class.std::vector.139") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %17, i32 noundef %10, i32 noundef %4)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #3
  %reass.sub = sub i32 %10, %4
  %18 = add i32 %reass.sub, 1
  store i32 %18, ptr %8, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %19 unwind label %20

19:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #3
  br label %22

20:                                               ; preds = %16
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %23

22:                                               ; preds = %19, %13
  ret void

23:                                               ; preds = %20, %14
  %.pn = phi { ptr, i32 } [ %15, %14 ], [ %21, %20 ]
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK7array2dIiEclEii(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress 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 }

!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"}


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