; LLVM IR from imteekay/algorithms :: competitive-programming/uri (to_care_or_not_to_care)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15add_zero_valuesRSt6vectorIiSaIiEES2_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %18) #3
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %21) #3
  %23 = trunc i64 %22 to i32
  store i32 %23, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = load i32, ptr %6, align 4, !tbaa !9
  %26 = icmp sgt i32 %24, %25
  br i1 %26, label %27, label %42

27:                                               ; preds = %2
  %28 = load i32, ptr %5, align 4, !tbaa !9
  %29 = load i32, ptr %6, align 4, !tbaa !9
  %30 = sub nsw i32 %28, %29
  store i32 %30, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %38, %27
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = icmp slt i32 %32, %33
  br i1 %34, label %36, label %35

35:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %41

36:                                               ; preds = %31
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !9
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %37, ptr noundef nonnull align 4 dereferenceable(4) %9)
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %38

38:                                               ; preds = %36
  %39 = load i32, ptr %8, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %8, align 4, !tbaa !9
  br label %31, !llvm.loop !11

41:                                               ; preds = %35
  br label %62

42:                                               ; preds = %2
  %43 = load i32, ptr %5, align 4, !tbaa !9
  %44 = load i32, ptr %6, align 4, !tbaa !9
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %46, label %61

46:                                               ; preds = %42
  %47 = load i32, ptr %6, align 4, !tbaa !9
  %48 = load i32, ptr %5, align 4, !tbaa !9
  %49 = sub nsw i32 %47, %48
  store i32 %49, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %50

50:                                               ; preds = %57, %46
  %51 = load i32, ptr %10, align 4, !tbaa !9
  %52 = load i32, ptr %7, align 4, !tbaa !9
  %53 = icmp slt i32 %51, %52
  br i1 %53, label %55, label %54

54:                                               ; preds = %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %60

55:                                               ; preds = %50
  %56 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store i32 0, ptr %11, align 4, !tbaa !9
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %56, ptr noundef nonnull align 4 dereferenceable(4) %11)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %57

57:                                               ; preds = %55
  %58 = load i32, ptr %10, align 4, !tbaa !9
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %10, align 4, !tbaa !9
  br label %50, !llvm.loop !13

60:                                               ; preds = %54
  br label %61

61:                                               ; preds = %60, %42
  br label %62

62:                                               ; preds = %61, %41
  %63 = load ptr, ptr %3, align 8, !tbaa !5
  %64 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %63) #3
  %65 = urem i64 %64, 4
  %66 = icmp ne i64 %65, 0
  br i1 %66, label %67, label %97

67:                                               ; preds = %62
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %68 = load ptr, ptr %3, align 8, !tbaa !5
  %69 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %68) #3
  %70 = trunc i64 %69 to i32
  store i32 %70, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %71 = load i32, ptr %12, align 4, !tbaa !9
  %72 = srem i32 %71, 4
  store i32 %72, ptr %13, align 4, !tbaa !9
  %73 = load i32, ptr %13, align 4, !tbaa !9
  %74 = sub nsw i32 4, %73
  store i32 %74, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  store i32 0, ptr %14, align 4, !tbaa !9
  br label %75

75:                                               ; preds = %82, %67
  %76 = load i32, ptr %14, align 4, !tbaa !9
  %77 = load i32, ptr %7, align 4, !tbaa !9
  %78 = icmp slt i32 %76, %77
  br i1 %78, label %80, label %79

79:                                               ; preds = %75
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  br label %85

80:                                               ; preds = %75
  %81 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #3
  store i32 0, ptr %15, align 4, !tbaa !9
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %81, ptr noundef nonnull align 4 dereferenceable(4) %15)
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #3
  br label %82

82:                                               ; preds = %80
  %83 = load i32, ptr %14, align 4, !tbaa !9
  %84 = add nsw i32 %83, 1
  store i32 %84, ptr %14, align 4, !tbaa !9
  br label %75, !llvm.loop !14

85:                                               ; preds = %79
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #3
  store i32 0, ptr %16, align 4, !tbaa !9
  br label %86

86:                                               ; preds = %93, %85
  %87 = load i32, ptr %16, align 4, !tbaa !9
  %88 = load i32, ptr %7, align 4, !tbaa !9
  %89 = icmp slt i32 %87, %88
  br i1 %89, label %91, label %90

90:                                               ; preds = %86
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #3
  br label %96

91:                                               ; preds = %86
  %92 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #3
  store i32 0, ptr %17, align 4, !tbaa !9
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %92, ptr noundef nonnull align 4 dereferenceable(4) %17)
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #3
  br label %93

93:                                               ; preds = %91
  %94 = load i32, ptr %16, align 4, !tbaa !9
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %16, align 4, !tbaa !9
  br label %86, !llvm.loop !15

96:                                               ; preds = %90
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %97

97:                                               ; preds = %96, %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 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)) #0 align 2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


; 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
define dso_local void @_Z15add_zero_valuesRSt6vectorIiSaIiEES2_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %8 = trunc i64 %7 to i32
  %9 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  %10 = trunc i64 %9 to i32
  %11 = icmp sgt i32 %8, %10
  br i1 %11, label %12, label %16

12:                                               ; preds = %2
  %13 = sub nsw i32 %8, %10
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph40, label %.loopexit36

.lr.ph40:                                         ; preds = %12, %.lr.ph40
  %.03039 = phi i32 [ %15, %.lr.ph40 ], [ 0, %12 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %15 = add nuw nsw i32 %.03039, 1
  %exitcond46.not = icmp eq i32 %15, %13
  br i1 %exitcond46.not, label %.loopexit36, label %.lr.ph40, !llvm.loop !9

16:                                               ; preds = %2
  %17 = icmp slt i32 %8, %10
  br i1 %17, label %18, label %.loopexit36

18:                                               ; preds = %16
  %19 = sub nsw i32 %10, %8
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %.lr.ph, label %.loopexit36

.lr.ph:                                           ; preds = %18, %.lr.ph
  %.03138 = phi i32 [ %21, %.lr.ph ], [ 0, %18 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  %21 = add nuw nsw i32 %.03138, 1
  %exitcond.not = icmp eq i32 %21, %19
  br i1 %exitcond.not, label %.loopexit36, label %.lr.ph, !llvm.loop !11

.loopexit36:                                      ; preds = %.lr.ph, %.lr.ph40, %18, %12, %16
  %22 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %23 = and i64 %22, 3
  %.not = icmp eq i64 %23, 0
  br i1 %.not, label %.loopexit, label %.lr.ph42.preheader

.lr.ph42.preheader:                               ; preds = %.loopexit36
  %24 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %25 = trunc i64 %24 to i32
  %26 = srem i32 %25, 4
  %27 = sub nsw i32 4, %26
  br label %.lr.ph42

.lr.ph42:                                         ; preds = %.lr.ph42.preheader, %.lr.ph42
  %.02941 = phi i32 [ %28, %.lr.ph42 ], [ 0, %.lr.ph42.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  %28 = add nuw nsw i32 %.02941, 1
  %exitcond47.not = icmp eq i32 %28, %27
  br i1 %exitcond47.not, label %.lr.ph44, label %.lr.ph42, !llvm.loop !12

.lr.ph44:                                         ; preds = %.lr.ph42, %.lr.ph44
  %.043 = phi i32 [ %29, %.lr.ph44 ], [ 0, %.lr.ph42 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  %29 = add nuw nsw i32 %.043, 1
  %exitcond48.not = icmp eq i32 %29, %27
  br i1 %exitcond48.not, label %.loopexit, label %.lr.ph44, !llvm.loop !13

.loopexit:                                        ; preds = %.lr.ph44, %.loopexit36
  ret void
}

; 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 nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 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 #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

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass