; LLVM IR from DionysiosB/CodeForces :: 0300-0399 (357A-GroupOfStudents)

; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %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
  %11 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 0, ptr %2, align 4, !tbaa !5
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %14, i64 4)
  %16 = extractvalue { i64, i1 } %15, 1
  %17 = extractvalue { i64, i1 } %15, 0
  %18 = select i1 %16, i64 -1, i64 %17
  %19 = call noalias noundef nonnull ptr @_Znam(i64 noundef %18) #6
  store ptr %19, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %38, %0
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %41

25:                                               ; preds = %20
  %26 = load ptr, ptr %3, align 8, !tbaa !9
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds i32, ptr %26, i64 %28
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %29)
  %31 = load ptr, ptr %3, align 8, !tbaa !9
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i32, ptr %31, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = add nsw i32 %36, %35
  store i32 %37, ptr %4, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %25
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %5, align 4, !tbaa !5
  br label %20, !llvm.loop !11

41:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !5
  %42 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %6, ptr noundef %7)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  store i32 0, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %43

43:                                               ; preds = %78, %41
  %44 = load i32, ptr %10, align 4, !tbaa !5
  %45 = load i32, ptr %2, align 4, !tbaa !5
  %46 = icmp slt i32 %44, %45
  br i1 %46, label %48, label %47

47:                                               ; preds = %43
  store i32 5, ptr %11, align 4
  br label %81

48:                                               ; preds = %43
  %49 = load i32, ptr %6, align 4, !tbaa !5
  %50 = load i32, ptr %8, align 4, !tbaa !5
  %51 = icmp sle i32 %49, %50
  br i1 %51, label %52, label %70

52:                                               ; preds = %48
  %53 = load i32, ptr %8, align 4, !tbaa !5
  %54 = load i32, ptr %7, align 4, !tbaa !5
  %55 = icmp sle i32 %53, %54
  br i1 %55, label %56, label %70

56:                                               ; preds = %52
  %57 = load i32, ptr %6, align 4, !tbaa !5
  %58 = load i32, ptr %8, align 4, !tbaa !5
  %59 = add nsw i32 %57, %58
  %60 = load i32, ptr %4, align 4, !tbaa !5
  %61 = icmp sle i32 %59, %60
  br i1 %61, label %62, label %70

62:                                               ; preds = %56
  %63 = load i32, ptr %4, align 4, !tbaa !5
  %64 = load i32, ptr %8, align 4, !tbaa !5
  %65 = load i32, ptr %7, align 4, !tbaa !5
  %66 = add nsw i32 %64, %65
  %67 = icmp sle i32 %63, %66
  br i1 %67, label %68, label %70

68:                                               ; preds = %62
  %69 = load i32, ptr %10, align 4, !tbaa !5
  store i32 %69, ptr %9, align 4, !tbaa !5
  store i32 5, ptr %11, align 4
  br label %81

70:                                               ; preds = %62, %56, %52, %48
  %71 = load ptr, ptr %3, align 8, !tbaa !9
  %72 = load i32, ptr %10, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = getelementptr inbounds i32, ptr %71, i64 %73
  %75 = load i32, ptr %74, align 4, !tbaa !5
  %76 = load i32, ptr %8, align 4, !tbaa !5
  %77 = add nsw i32 %76, %75
  store i32 %77, ptr %8, align 4, !tbaa !5
  br label %78

78:                                               ; preds = %70
  %79 = load i32, ptr %10, align 4, !tbaa !5
  %80 = add nsw i32 %79, 1
  store i32 %80, ptr %10, align 4, !tbaa !5
  br label %43, !llvm.loop !13

81:                                               ; preds = %68, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %82

82:                                               ; preds = %81
  %83 = load i32, ptr %9, align 4, !tbaa !5
  %84 = icmp ne i32 %83, 0
  br i1 %84, label %85, label %89

85:                                               ; preds = %82
  %86 = load i32, ptr %9, align 4, !tbaa !5
  %87 = add nsw i32 %86, 1
  %88 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %87)
  br label %91

89:                                               ; preds = %82
  %90 = call i32 @puts(ptr noundef @.str.3)
  br label %91

91:                                               ; preds = %89, %85
  store i32 0, ptr %1, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  %92 = load i32, ptr %1, align 4
  ret i32 %92
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

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

declare i32 @printf(ptr noundef, ...) #2

declare i32 @puts(ptr noundef) #2

attributes #0 = { mustprogress norecurse 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 = { "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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  store i32 0, ptr %1, align 4, !tbaa !5
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = icmp slt i32 %5, 0
  %8 = shl nsw i64 %6, 2
  %9 = select i1 %7, i64 -1, i64 %8
  %10 = call noalias noundef nonnull ptr @_Znam(i64 noundef %9) #5
  %11 = icmp sgt i32 %5, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.024.lcssa = phi i32 [ 0, %0 ], [ %20, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  store i32 0, ptr %3, align 4, !tbaa !5
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph40, label %.thread

.lr.ph40:                                         ; preds = %._crit_edge
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = load i32, ptr %3, align 4
  %wide.trip.count = zext nneg i32 %13 to i64
  br label %24

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %.02435 = phi i32 [ %20, %.lr.ph ], [ 0, %0 ]
  %17 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %17)
  %19 = load i32, ptr %17, align 4, !tbaa !5
  %20 = add nsw i32 %19, %.02435
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %21 = load i32, ptr %1, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = icmp slt i64 %indvars.iv.next, %22
  br i1 %23, label %.lr.ph, label %._crit_edge, !llvm.loop !9

24:                                               ; preds = %.lr.ph40, %28
  %indvars.iv43 = phi i64 [ 0, %.lr.ph40 ], [ %indvars.iv.next44, %28 ]
  %.02237 = phi i32 [ 0, %.lr.ph40 ], [ %31, %28 ]
  %.not = icmp sgt i32 %15, %.02237
  br i1 %.not, label %28, label %25

25:                                               ; preds = %24
  %.not27 = icmp sgt i32 %.02237, %16
  %26 = add nsw i32 %15, %.02237
  %.not28 = icmp sgt i32 %26, %.024.lcssa
  %or.cond = select i1 %.not27, i1 true, i1 %.not28
  %27 = add nsw i32 %16, %.02237
  %.not29 = icmp sgt i32 %.024.lcssa, %27
  %or.cond31 = select i1 %or.cond, i1 true, i1 %.not29
  br i1 %or.cond31, label %28, label %32

28:                                               ; preds = %25, %24
  %29 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv43
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = add nsw i32 %30, %.02237
  %indvars.iv.next44 = add nuw nsw i64 %indvars.iv43, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next44, %wide.trip.count
  br i1 %exitcond.not, label %.thread, label %24, !llvm.loop !11

32:                                               ; preds = %25
  %.not30 = icmp eq i64 %indvars.iv43, 0
  br i1 %.not30, label %.thread, label %33

33:                                               ; preds = %32
  %34 = trunc nuw nsw i64 %indvars.iv43 to i32
  %35 = add nuw nsw i32 %34, 1
  %36 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %35)
  br label %38

.thread:                                          ; preds = %28, %._crit_edge, %32
  %37 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.3)
  br label %38

38:                                               ; preds = %.thread, %33
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #3

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

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

attributes #0 = { mustprogress norecurse 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 = { nofree nounwind "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 = { nobuiltin allocsize(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 }
attributes #5 = { builtin allocsize(0) }

!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}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass