; LLVM IR from Razakhel/RaZ :: src/RaZ/Data/Bitset.ll (ZN3Raz6BitsetaNERKS0_)

; 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.std::_Bit_reference" = type { ptr, i64 }
%"class.Raz::Bitset" = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #0 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)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK3Raz6Bitset7getSizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN3Raz6BitsetaNERKS0_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) #0 align 2 personality ptr @__gxx_personality_v0 {
  %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
  %8 = alloca %"struct.std::_Bit_reference", align 8
  %9 = alloca %"struct.std::_Bit_reference", align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = 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 %11

11:                                               ; preds = %47, %2
  %12 = load i64, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %13 = getelementptr inbounds %"class.Raz::Bitset", ptr %10, i32 0, i32 0
  %14 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %13) #5
  store i64 %14, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = call noundef i64 @_ZNK3Raz6Bitset7getSizeEv(ptr noundef nonnull align 8 dereferenceable(40) %15) #5
  store i64 %16, ptr %7, align 8, !tbaa !9
  %17 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %18 unwind label %51

18:                                               ; preds = %11
  %19 = load i64, ptr %17, align 8, !tbaa !9
  %20 = icmp ult i64 %12, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br i1 %20, label %22, label %21

21:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %50

22:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #5
  %23 = getelementptr inbounds %"class.Raz::Bitset", ptr %10, i32 0, i32 0
  %24 = load i64, ptr %5, align 8, !tbaa !9
  %25 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %23, i64 noundef %24)
          to label %26 unwind label %51

26:                                               ; preds = %22
  %27 = getelementptr inbounds { ptr, i64 }, ptr %8, i32 0, i32 0
  %28 = extractvalue { ptr, i64 } %25, 0
  store ptr %28, ptr %27, align 8
  %29 = getelementptr inbounds { ptr, i64 }, ptr %8, i32 0, i32 1
  %30 = extractvalue { ptr, i64 } %25, 1
  store i64 %30, ptr %29, align 8
  %31 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %8) #5
  br i1 %31, label %32, label %36

32:                                               ; preds = %26
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = load i64, ptr %5, align 8, !tbaa !9
  %35 = call noundef zeroext i1 @_ZNK3Raz6BitsetixEm(ptr noundef nonnull align 8 dereferenceable(40) %33, i64 noundef %34) #5
  br label %36

36:                                               ; preds = %32, %26
  %37 = phi i1 [ false, %26 ], [ %35, %32 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #5
  %38 = getelementptr inbounds %"class.Raz::Bitset", ptr %10, i32 0, i32 0
  %39 = load i64, ptr %5, align 8, !tbaa !9
  %40 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %38, i64 noundef %39)
          to label %41 unwind label %51

41:                                               ; preds = %36
  %42 = getelementptr inbounds { ptr, i64 }, ptr %9, i32 0, i32 0
  %43 = extractvalue { ptr, i64 } %40, 0
  store ptr %43, ptr %42, align 8
  %44 = getelementptr inbounds { ptr, i64 }, ptr %9, i32 0, i32 1
  %45 = extractvalue { ptr, i64 } %40, 1
  store i64 %45, ptr %44, align 8
  %46 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %9, i1 noundef zeroext %37) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #5
  br label %47

47:                                               ; preds = %41
  %48 = load i64, ptr %5, align 8, !tbaa !9
  %49 = add i64 %48, 1
  store i64 %49, ptr %5, align 8, !tbaa !9
  br label %11, !llvm.loop !11

50:                                               ; preds = %21
  ret ptr %10

51:                                               ; preds = %36, %22, %11
  %52 = landingpad { ptr, i32 }
          catch ptr null
  %53 = extractvalue { ptr, i32 } %52, 0
  call void @__clang_call_terminate(ptr %53) #6
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK3Raz6BitsetixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { noinline noreturn nounwind uwtable "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 = { 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 #5 = { nounwind }
attributes #6 = { noreturn 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 = distinct !{!11, !12}
!12 = !{!"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"

%"struct.std::_Bit_reference" = type { ptr, i64 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) local_unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 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 #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK3Raz6Bitset7getSizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN3Raz6BitsetaNERKS0_(ptr noundef nonnull returned align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"struct.std::_Bit_reference", align 8
  %6 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %7 = tail call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0) #5
  store i64 %7, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %8 = tail call noundef i64 @_ZNK3Raz6Bitset7getSizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1) #5
  store i64 %8, ptr %4, align 8, !tbaa !5
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
  %10 = load i64, ptr %9, align 8, !tbaa !5
  %.not = icmp eq i64 %10, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %11 = getelementptr inbounds i8, ptr %5, i64 8
  %12 = getelementptr inbounds i8, ptr %6, i64 8
  br label %13

._crit_edge:                                      ; preds = %24, %2
  ret ptr %0

13:                                               ; preds = %.lr.ph, %24
  %.07 = phi i64 [ 0, %.lr.ph ], [ %28, %24 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #5
  %14 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %.07)
          to label %15 unwind label %34

15:                                               ; preds = %13
  %16 = extractvalue { ptr, i64 } %14, 0
  store ptr %16, ptr %5, align 8
  %17 = extractvalue { ptr, i64 } %14, 1
  store i64 %17, ptr %11, align 8
  %18 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %5) #5
  br i1 %18, label %19, label %21

19:                                               ; preds = %15
  %20 = call noundef zeroext i1 @_ZNK3Raz6BitsetixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %.07) #5
  br label %21

21:                                               ; preds = %19, %15
  %22 = phi i1 [ false, %15 ], [ %20, %19 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #5
  %23 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %.07)
          to label %24 unwind label %34

24:                                               ; preds = %21
  %25 = extractvalue { ptr, i64 } %23, 0
  store ptr %25, ptr %6, align 8
  %26 = extractvalue { ptr, i64 } %23, 1
  store i64 %26, ptr %12, align 8
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %6, i1 noundef zeroext %22) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #5
  %28 = add nuw i64 %.07, 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %29 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %0) #5
  store i64 %29, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %30 = call noundef i64 @_ZNK3Raz6Bitset7getSizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1) #5
  store i64 %30, ptr %4, align 8, !tbaa !5
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
  %32 = load i64, ptr %31, align 8, !tbaa !5
  %33 = icmp ult i64 %28, %32
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br i1 %33, label %13, label %._crit_edge, !llvm.loop !9

34:                                               ; preds = %21, %13
  %35 = landingpad { ptr, i32 }
          catch ptr null
  %36 = extractvalue { ptr, i32 } %35, 0
  call void @__clang_call_terminate(ptr %36) #6
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK3Raz6BitsetixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { noinline noreturn nounwind uwtable "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 = { 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 #5 = { nounwind }
attributes #6 = { noreturn 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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