; LLVM IR from kimwalisch/primesieve :: src/MemoryPool.ll (ZN10primesieve10MemoryPool9addBucketERPNS_12SievingPrimeE)

; 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.primesieve::MemoryPool" = type { ptr, i64, %"class.primesieve::Vector" }
%"class.primesieve::Vector" = type { ptr, ptr, ptr }

; 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: mustprogress uwtable
declare dso_local void @_ZN10primesieve10MemoryPool15allocateBucketsEv(ptr noundef nonnull align 8 dereferenceable(40)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192), ptr noundef) #2 align 2

; Function Attrs: mustprogress noinline uwtable
define dso_local void @_ZN10primesieve10MemoryPool9addBucketERPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(8) %1) #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  %8 = getelementptr inbounds %"class.primesieve::MemoryPool", ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = icmp ne ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %2
  call void @_ZN10primesieve10MemoryPool15allocateBucketsEv(ptr noundef nonnull align 8 dereferenceable(40) %7)
  br label %12

12:                                               ; preds = %11, %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %13 = getelementptr inbounds %"class.primesieve::MemoryPool", ptr %7, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  store ptr %14, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %"class.primesieve::MemoryPool", ptr %7, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = call noundef ptr @_ZN10primesieve6Bucket4nextEv(ptr noundef nonnull align 8 dereferenceable(8192) %16)
  %18 = getelementptr inbounds %"class.primesieve::MemoryPool", ptr %7, i32 0, i32 0
  store ptr %17, ptr %18, align 8, !tbaa !9
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192) %19, ptr noundef null)
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %32

23:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = call noundef ptr @_ZN10primesieve6Bucket3getEPNS_12SievingPrimeE(ptr noundef %25)
  store ptr %26, ptr %6, align 8, !tbaa !5
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = load ptr, ptr %28, align 8, !tbaa !5
  call void @_ZN10primesieve6Bucket6setEndEPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(8192) %27, ptr noundef %29)
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  call void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192) %30, ptr noundef %31)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %32

32:                                               ; preds = %23, %12
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = call noundef ptr @_ZN10primesieve6Bucket5beginEv(ptr noundef nonnull align 8 dereferenceable(8192) %33)
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %34, ptr %35, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket4nextEv(ptr noundef nonnull align 8 dereferenceable(8192)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket3getEPNS_12SievingPrimeE(ptr noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10primesieve6Bucket6setEndEPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(8192), ptr noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket5beginEv(ptr noundef nonnull align 8 dereferenceable(8192)) #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 = { mustprogress noinline 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 }

!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, !6, i64 0}
!10 = !{!"_ZTSN10primesieve10MemoryPoolE", !6, i64 0, !11, i64 8, !12, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!"_ZTSN10primesieve6VectorINS0_IcSaIcEEESaIS2_EEE", !6, i64 0, !6, i64 8, !6, i64 16}


; 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
declare dso_local void @_ZN10primesieve10MemoryPool15allocateBucketsEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress noinline uwtable
define dso_local void @_ZN10primesieve10MemoryPool9addBucketERPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr nocapture noundef nonnull align 8 dereferenceable(8) %1) local_unnamed_addr #2 align 2 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %4, label %5

4:                                                ; preds = %2
  tail call void @_ZN10primesieve10MemoryPool15allocateBucketsEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %.pre = load ptr, ptr %0, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %4, %2
  %6 = phi ptr [ %.pre, %4 ], [ %3, %2 ]
  %7 = tail call noundef ptr @_ZN10primesieve6Bucket4nextEv(ptr noundef nonnull align 8 dereferenceable(8192) %6)
  store ptr %7, ptr %0, align 8, !tbaa !5
  tail call void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192) %6, ptr noundef null)
  %8 = load ptr, ptr %1, align 8, !tbaa !12
  %.not10 = icmp eq ptr %8, null
  br i1 %.not10, label %12, label %9

9:                                                ; preds = %5
  %10 = tail call noundef ptr @_ZN10primesieve6Bucket3getEPNS_12SievingPrimeE(ptr noundef nonnull %8)
  %11 = load ptr, ptr %1, align 8, !tbaa !12
  tail call void @_ZN10primesieve6Bucket6setEndEPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(8192) %10, ptr noundef %11)
  tail call void @_ZN10primesieve6Bucket7setNextEPS0_(ptr noundef nonnull align 8 dereferenceable(8192) %6, ptr noundef nonnull %10)
  br label %12

12:                                               ; preds = %9, %5
  %13 = tail call noundef ptr @_ZN10primesieve6Bucket5beginEv(ptr noundef nonnull align 8 dereferenceable(8192) %6)
  store ptr %13, ptr %1, align 8, !tbaa !12
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket4nextEv(ptr noundef nonnull align 8 dereferenceable(8192)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket3getEPNS_12SievingPrimeE(ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10primesieve6Bucket6setEndEPNS_12SievingPrimeE(ptr noundef nonnull align 8 dereferenceable(8192), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN10primesieve6Bucket5beginEv(ptr noundef nonnull align 8 dereferenceable(8192)) local_unnamed_addr #1 align 2

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 = { 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 #2 = { mustprogress noinline 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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTSN10primesieve10MemoryPoolE", !7, i64 0, !10, i64 8, !11, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"_ZTSN10primesieve6VectorINS0_IcSaIcEEESaIS2_EEE", !7, i64 0, !7, i64 8, !7, i64 16}
!12 = !{!7, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass