; LLVM IR from kimwalisch/primesieve :: src/EratSmall.ll (ZN10primesieve9EratSmall8crossOffERNS_6VectorIhSaIhEEE)

; 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::EratSmall" = type { %"class.primesieve::Wheel", i64, i64, %"class.primesieve::Vector" }
%"class.primesieve::Wheel" = type { ptr, i64 }
%"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
define dso_local void @_ZN10primesieve9EratSmall8crossOffERNS_6VectorIhSaIhEEE(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  store i64 0, ptr %5, align 8, !tbaa !9
  br label %9

9:                                                ; preds = %27, %2
  %10 = load i64, ptr %5, align 8, !tbaa !9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  %13 = icmp ult i64 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %32

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %16 = getelementptr inbounds %"class.primesieve::EratSmall", ptr %8, i32 0, i32 2
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = call noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %17) #5
  %19 = load i64, ptr %5, align 8, !tbaa !9
  %20 = sub i64 %18, %19
  store i64 %20, ptr %7, align 8, !tbaa !9
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %22 = load i64, ptr %21, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  store i64 %22, ptr %6, align 8, !tbaa !9
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %5, align 8, !tbaa !9
  %25 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZN10primesieve6VectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %23, i64 noundef %24) #5
  %26 = load i64, ptr %6, align 8, !tbaa !9
  call void @_ZN10primesieve9EratSmall8crossOffEPhm(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef %25, i64 noundef %26)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %27

27:                                               ; preds = %15
  %28 = getelementptr inbounds %"class.primesieve::EratSmall", ptr %8, i32 0, i32 2
  %29 = load i64, ptr %28, align 8, !tbaa !11
  %30 = load i64, ptr %5, align 8, !tbaa !9
  %31 = add i64 %30, %29
  store i64 %31, ptr %5, align 8, !tbaa !9
  br label %9, !llvm.loop !15

32:                                               ; preds = %14
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress noinline uwtable
declare dso_local void @_ZN10primesieve9EratSmall8crossOffEPhm(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef, i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZN10primesieve6VectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #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 = { inlinehint 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 #4 = { 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 #5 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"_ZTSN10primesieve9EratSmallE", !13, i64 0, !10, i64 16, !10, i64 24, !14, i64 32}
!13 = !{!"_ZTSN10primesieve5WheelILi30ELi8ELi6EXadsoKNS_9WheelInitEL_ZNS_11wheel30InitEEEEEE", !10, i64 8}
!14 = !{!"_ZTSN10primesieve6VectorINS_12SievingPrimeESaIS1_EEE", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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 @_ZN10primesieve9EratSmall8crossOffERNS_6VectorIhSaIhEEE(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #1 align 2 {
  %3 = alloca i64, align 8
  %4 = tail call noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  %.not = icmp eq i64 %4, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  br label %6

._crit_edge:                                      ; preds = %6, %2
  ret void

6:                                                ; preds = %.lr.ph, %6
  %.08 = phi i64 [ 0, %.lr.ph ], [ %13, %6 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %7 = call noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  %8 = sub i64 %7, %.08
  store i64 %8, ptr %3, align 8, !tbaa !5
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %10 = load i64, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  %11 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZN10primesieve6VectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.08) #5
  call void @_ZN10primesieve9EratSmall8crossOffEPhm(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull %11, i64 noundef %10)
  %12 = load i64, ptr %5, align 8, !tbaa !9
  %13 = add i64 %12, %.08
  %14 = call noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #5
  %15 = icmp ult i64 %13, %14
  br i1 %15, label %6, label %._crit_edge, !llvm.loop !14
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK10primesieve6VectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress noinline uwtable
declare dso_local void @_ZN10primesieve9EratSmall8crossOffEPhm(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef, i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZN10primesieve6VectorIhSaIhEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_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 = { inlinehint 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 #4 = { 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 #5 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_ZTSN10primesieve9EratSmallE", !11, i64 0, !6, i64 16, !6, i64 24, !12, i64 32}
!11 = !{!"_ZTSN10primesieve5WheelILi30ELi8ELi6EXadsoKNS_9WheelInitEL_ZNS_11wheel30InitEEEEEE", !6, i64 8}
!12 = !{!"_ZTSN10primesieve6VectorINS_12SievingPrimeESaIS1_EEE", !13, i64 0, !13, i64 8, !13, i64 16}
!13 = !{!"any pointer", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass