; LLVM IR from kazunetakahashi/atcoder :: 2019/1005_AGC039/B.ll (Z9calc_diamRSt6vectorIS_IiSaIiEESaIS1_EE)

; 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 noundef i32 @_Z9calc_diamRSt6vectorIS_IiSaIiEESaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %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
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #3
  %13 = trunc i64 %12 to i32
  store i32 %13, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %64, %1
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  store i32 2, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %67

19:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %20

20:                                               ; preds = %60, %19
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  store i32 5, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %63

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %56, %25
  %27 = load i32, ptr %7, align 4, !tbaa !9
  %28 = load i32, ptr %3, align 4, !tbaa !9
  %29 = icmp slt i32 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %26
  store i32 8, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %59

31:                                               ; preds = %26
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %32, i64 noundef %34) #3
  %36 = load i32, ptr %7, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef %37) #3
  %39 = load ptr, ptr %2, align 8, !tbaa !5
  %40 = load i32, ptr %6, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef %41) #3
  %43 = load i32, ptr %4, align 4, !tbaa !9
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %42, i64 noundef %44) #3
  %46 = load i32, ptr %45, align 4, !tbaa !9
  %47 = load ptr, ptr %2, align 8, !tbaa !5
  %48 = load i32, ptr %4, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %47, i64 noundef %49) #3
  %51 = load i32, ptr %7, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %50, i64 noundef %52) #3
  %54 = load i32, ptr %53, align 4, !tbaa !9
  %55 = add nsw i32 %46, %54
  call void @_Z6ch_minIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4) %38, i32 noundef %55)
  br label %56

56:                                               ; preds = %31
  %57 = load i32, ptr %7, align 4, !tbaa !9
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %7, align 4, !tbaa !9
  br label %26, !llvm.loop !11

59:                                               ; preds = %30
  br label %60

60:                                               ; preds = %59
  %61 = load i32, ptr %6, align 4, !tbaa !9
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %6, align 4, !tbaa !9
  br label %20, !llvm.loop !13

63:                                               ; preds = %24
  br label %64

64:                                               ; preds = %63
  %65 = load i32, ptr %4, align 4, !tbaa !9
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %4, align 4, !tbaa !9
  br label %14, !llvm.loop !14

67:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %68

68:                                               ; preds = %92, %67
  %69 = load i32, ptr %9, align 4, !tbaa !9
  %70 = load i32, ptr %3, align 4, !tbaa !9
  %71 = icmp slt i32 %69, %70
  br i1 %71, label %73, label %72

72:                                               ; preds = %68
  store i32 11, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %95

73:                                               ; preds = %68
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %74

74:                                               ; preds = %88, %73
  %75 = load i32, ptr %10, align 4, !tbaa !9
  %76 = load i32, ptr %3, align 4, !tbaa !9
  %77 = icmp slt i32 %75, %76
  br i1 %77, label %79, label %78

78:                                               ; preds = %74
  store i32 14, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %91

79:                                               ; preds = %74
  %80 = load ptr, ptr %2, align 8, !tbaa !5
  %81 = load i32, ptr %9, align 4, !tbaa !9
  %82 = sext i32 %81 to i64
  %83 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %80, i64 noundef %82) #3
  %84 = load i32, ptr %10, align 4, !tbaa !9
  %85 = sext i32 %84 to i64
  %86 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %83, i64 noundef %85) #3
  %87 = load i32, ptr %86, align 4, !tbaa !9
  call void @_Z6ch_maxIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4) %8, i32 noundef %87)
  br label %88

88:                                               ; preds = %79
  %89 = load i32, ptr %10, align 4, !tbaa !9
  %90 = add nsw i32 %89, 1
  store i32 %90, ptr %10, align 4, !tbaa !9
  br label %74, !llvm.loop !15

91:                                               ; preds = %78
  br label %92

92:                                               ; preds = %91
  %93 = load i32, ptr %9, align 4, !tbaa !9
  %94 = add nsw i32 %93, 1
  store i32 %94, ptr %9, align 4, !tbaa !9
  br label %68, !llvm.loop !16

95:                                               ; preds = %72
  %96 = load i32, ptr %8, align 4, !tbaa !9
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %96
}

; 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 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z6ch_minIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z6ch_maxIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) #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 = { 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}
!16 = distinct !{!16, !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 nounwind uwtable
define dso_local noundef i32 @_Z9calc_diamRSt6vectorIS_IiSaIiEESaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) local_unnamed_addr #0 {
  %2 = alloca i32, align 4
  %3 = tail call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %4 = trunc i64 %3 to i32
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.preheader33.us.preheader, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #2
  br label %._crit_edge41

.preheader33.us.preheader:                        ; preds = %1
  %wide.trip.count51 = and i64 %3, 2147483647
  br label %.preheader33.us

.preheader33.us:                                  ; preds = %.preheader33.us.preheader, %._crit_edge36.split.us.us
  %indvars.iv48 = phi i64 [ 0, %.preheader33.us.preheader ], [ %indvars.iv.next49, %._crit_edge36.split.us.us ]
  br label %.preheader32.us.us

.preheader32.us.us:                               ; preds = %._crit_edge.us.us, %.preheader33.us
  %indvars.iv43 = phi i64 [ %indvars.iv.next44, %._crit_edge.us.us ], [ 0, %.preheader33.us ]
  br label %6

6:                                                ; preds = %6, %.preheader32.us.us
  %indvars.iv = phi i64 [ %indvars.iv.next, %6 ], [ 0, %.preheader32.us.us ]
  %7 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv43) #2
  %8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %indvars.iv) #2
  %9 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv43) #2
  %10 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %indvars.iv48) #2
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv48) #2
  %13 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %indvars.iv) #2
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = add nsw i32 %14, %11
  tail call void @_Z6ch_minIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4) %8, i32 noundef %15)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count51
  br i1 %exitcond.not, label %._crit_edge.us.us, label %6, !llvm.loop !9

._crit_edge.us.us:                                ; preds = %6
  %indvars.iv.next44 = add nuw nsw i64 %indvars.iv43, 1
  %exitcond47.not = icmp eq i64 %indvars.iv.next44, %wide.trip.count51
  br i1 %exitcond47.not, label %._crit_edge36.split.us.us, label %.preheader32.us.us, !llvm.loop !11

._crit_edge36.split.us.us:                        ; preds = %._crit_edge.us.us
  %indvars.iv.next49 = add nuw nsw i64 %indvars.iv48, 1
  %exitcond52.not = icmp eq i64 %indvars.iv.next49, %wide.trip.count51
  br i1 %exitcond52.not, label %._crit_edge, label %.preheader33.us, !llvm.loop !12

._crit_edge:                                      ; preds = %._crit_edge36.split.us.us
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #2
  store i32 0, ptr %2, align 4, !tbaa !5
  br i1 %5, label %.preheader.us.preheader, label %._crit_edge41

.preheader.us.preheader:                          ; preds = %._crit_edge
  %wide.trip.count61 = and i64 %3, 2147483647
  br label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.us.preheader, %._crit_edge39.us
  %indvars.iv58 = phi i64 [ 0, %.preheader.us.preheader ], [ %indvars.iv.next59, %._crit_edge39.us ]
  br label %16

16:                                               ; preds = %.preheader.us, %16
  %indvars.iv53 = phi i64 [ 0, %.preheader.us ], [ %indvars.iv.next54, %16 ]
  %17 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv58) #2
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %17, i64 noundef %indvars.iv53) #2
  %19 = load i32, ptr %18, align 4, !tbaa !5
  call void @_Z6ch_maxIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4) %2, i32 noundef %19)
  %indvars.iv.next54 = add nuw nsw i64 %indvars.iv53, 1
  %exitcond57.not = icmp eq i64 %indvars.iv.next54, %wide.trip.count61
  br i1 %exitcond57.not, label %._crit_edge39.us, label %16, !llvm.loop !13

._crit_edge39.us:                                 ; preds = %16
  %indvars.iv.next59 = add nuw nsw i64 %indvars.iv58, 1
  %exitcond62.not = icmp eq i64 %indvars.iv.next59, %wide.trip.count61
  br i1 %exitcond62.not, label %._crit_edge41.loopexit, label %.preheader.us, !llvm.loop !14

._crit_edge41.loopexit:                           ; preds = %._crit_edge39.us
  %.pre = load i32, ptr %2, align 4, !tbaa !5
  br label %._crit_edge41

._crit_edge41:                                    ; preds = %._crit_edge.thread, %._crit_edge41.loopexit, %._crit_edge
  %20 = phi i32 [ %.pre, %._crit_edge41.loopexit ], [ 0, %._crit_edge ], [ 0, %._crit_edge.thread ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #2
  ret i32 %20
}

; 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 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z6ch_minIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z6ch_maxIiEvRT_S0_(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) local_unnamed_addr #0

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 = { 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}
!14 = distinct !{!14, !10}


; Effective O3 passes: DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass