; LLVM IR from eyangch/competitive-programming :: USACOtraining/2.1/hamming.ll (Z8dectobinii)

; 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.0" = 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 }>
%"class.std::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

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

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #1 align 2

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 nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z8dectobinii(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8 %0, i32 noundef %1, i32 noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i1, align 1
  %9 = alloca i8, align 1
  %10 = alloca %"class.std::allocator.4", align 1
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"struct.std::_Bit_reference", align 8
  store ptr %0, ptr %4, align 8
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = sub nsw i32 %15, 1
  %17 = call noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef 2, i32 noundef %16)
  %18 = fptosi double %17 to i32
  store i32 %18, ptr %7, align 4, !tbaa !5
  store i1 false, ptr %8, align 1
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  store i8 0, ptr %9, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #4
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #4
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %20, ptr noundef nonnull align 1 dereferenceable(1) %9, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %21 unwind label %26

21:                                               ; preds = %3
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %49, %21
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %30, label %25

25:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %56

26:                                               ; preds = %3
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %11, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %12, align 4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  br label %60

30:                                               ; preds = %22
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = sdiv i32 %31, %32
  %34 = icmp ne i32 %33, 0
  call void @llvm.lifetime.start.p0(i64 16, ptr %14) #4
  %35 = load i32, ptr %13, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %36)
          to label %38 unwind label %52

38:                                               ; preds = %30
  %39 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 0
  %40 = extractvalue { ptr, i64 } %37, 0
  store ptr %40, ptr %39, align 8
  %41 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 1
  %42 = extractvalue { ptr, i64 } %37, 1
  store i64 %42, ptr %41, align 8
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %14, i1 noundef zeroext %34) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #4
  %44 = load i32, ptr %7, align 4, !tbaa !5
  %45 = load i32, ptr %6, align 4, !tbaa !5
  %46 = srem i32 %45, %44
  store i32 %46, ptr %6, align 4, !tbaa !5
  %47 = load i32, ptr %7, align 4, !tbaa !5
  %48 = sdiv i32 %47, 2
  store i32 %48, ptr %7, align 4, !tbaa !5
  br label %49

49:                                               ; preds = %38
  %50 = load i32, ptr %13, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %13, align 4, !tbaa !5
  br label %22, !llvm.loop !11

52:                                               ; preds = %30
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %11, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %0) #4
  br label %60

56:                                               ; preds = %25
  store i1 true, ptr %8, align 1
  %57 = load i1, ptr %8, align 1
  br i1 %57, label %59, label %58

58:                                               ; preds = %56
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %0) #4
  br label %59

59:                                               ; preds = %58, %56
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret void

60:                                               ; preds = %52, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %61

61:                                               ; preds = %60
  %62 = load ptr, ptr %11, align 8
  %63 = load i32, ptr %12, align 4
  %64 = insertvalue { ptr, i32 } poison, ptr %62, 0
  %65 = insertvalue { ptr, i32 } %64, i32 %63, 1
  resume { ptr, i32 } %65
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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) #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 = { 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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !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"

%"class.std::vector.0" = 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 }>
%"class.std::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

; 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 uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #1 align 2

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 nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z8dectobinii(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8 %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca i8, align 1
  %5 = alloca %"class.std::allocator.4", align 1
  %6 = alloca %"struct.std::_Bit_reference", align 8
  %7 = add nsw i32 %1, -1
  %8 = tail call noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef 2, i32 noundef %7)
  %9 = sext i32 %1 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #4
  store i8 0, ptr %4, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %9, ptr noundef nonnull align 1 dereferenceable(1) %4, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %10 unwind label %14

10:                                               ; preds = %3
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  %11 = icmp sgt i32 %2, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %10
  %12 = fptosi double %8 to i32
  %13 = getelementptr inbounds i8, ptr %6, i64 8
  br label %16

14:                                               ; preds = %3
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  br label %28

16:                                               ; preds = %.lr.ph, %18
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %18 ]
  %.01418 = phi i32 [ %12, %.lr.ph ], [ %25, %18 ]
  %.01517 = phi i32 [ %2, %.lr.ph ], [ %24, %18 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #4
  %17 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %indvars.iv)
          to label %18 unwind label %26

18:                                               ; preds = %16
  %19 = sdiv i32 %.01517, %.01418
  %20 = icmp ne i32 %19, 0
  %21 = extractvalue { ptr, i64 } %17, 0
  store ptr %21, ptr %6, align 8
  %22 = extractvalue { ptr, i64 } %17, 1
  store i64 %22, ptr %13, align 8
  %23 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %6, i1 noundef zeroext %20) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #4
  %24 = srem i32 %.01517, %.01418
  %25 = sdiv i32 %.01418, 2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %.not = icmp eq i32 %24, 0
  br i1 %.not, label %._crit_edge, label %16, !llvm.loop !9

26:                                               ; preds = %16
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #4
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %0) #4
  br label %28

._crit_edge:                                      ; preds = %18, %10
  ret void

28:                                               ; preds = %26, %14
  %.pn = phi { ptr, i32 } [ %27, %26 ], [ %15, %14 ]
  resume { ptr, i32 } %.pn
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3powIiiEN9__gnu_cxx9__promoteIDTplcvNS1_IT_Xsr3std12__is_integerIS2_EE7__valueEE6__typeELi0EcvNS1_IT0_Xsr3std12__is_integerIS5_EE7__valueEE6__typeELi0EEXsr3std12__is_integerIS8_EE7__valueEE6__typeES2_S5_(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 #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 = { 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 = !{!"bool", !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,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass