; LLVM IR from DionysiosB/CodeForces :: 0001-0099 (39H-MultiplicationTable)

; 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 [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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 i64, align 8
  %4 = alloca i32, align 4
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 1, ptr %3, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %48, %0
  %9 = load i64, ptr %3, align 8, !tbaa !5
  %10 = load i32, ptr %2, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = icmp slt i64 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %51

14:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 1, ptr %5, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %43, %14
  %16 = load i64, ptr %5, align 8, !tbaa !5
  %17 = load i32, ptr %2, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = icmp slt i64 %16, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %15
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %46

21:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %22 = load i64, ptr %3, align 8, !tbaa !5
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = mul nsw i64 %22, %23
  store i64 %24, ptr %6, align 8, !tbaa !5
  %25 = load i64, ptr %6, align 8, !tbaa !5
  %26 = load i32, ptr %2, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = icmp sge i64 %25, %27
  br i1 %28, label %29, label %40

29:                                               ; preds = %21
  %30 = load i64, ptr %6, align 8, !tbaa !5
  %31 = load i32, ptr %2, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = sdiv i64 %30, %32
  %34 = mul nsw i64 10, %33
  %35 = load i64, ptr %6, align 8, !tbaa !5
  %36 = load i32, ptr %2, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = srem i64 %35, %37
  %39 = add nsw i64 %34, %38
  store i64 %39, ptr %6, align 8, !tbaa !5
  br label %40

40:                                               ; preds = %29, %21
  %41 = load i64, ptr %6, align 8, !tbaa !5
  %42 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %41)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %43

43:                                               ; preds = %40
  %44 = load i64, ptr %5, align 8, !tbaa !5
  %45 = add nsw i64 %44, 1
  store i64 %45, ptr %5, align 8, !tbaa !5
  br label %15, !llvm.loop !11

46:                                               ; preds = %20
  %47 = call i32 @puts(ptr noundef @.str.2)
  br label %48

48:                                               ; preds = %46
  %49 = load i64, ptr %3, align 8, !tbaa !5
  %50 = add nsw i64 %49, 1
  store i64 %50, ptr %3, align 8, !tbaa !5
  br label %8, !llvm.loop !13

51:                                               ; preds = %13
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  %52 = load i32, ptr %1, align 4
  ret i32 %52
}

; 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

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

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

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 = { 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 = !{!10, !10, i64 0}
!10 = !{!"int", !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 [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %4 = icmp sgt i32 %3, 1
  br i1 %4, label %.preheader, label %._crit_edge17

.preheader:                                       ; preds = %0, %._crit_edge
  %5 = phi i32 [ %10, %._crit_edge ], [ %3, %0 ]
  %.01216 = phi i64 [ %9, %._crit_edge ], [ 1, %0 ]
  %6 = icmp sgt i32 %5, 1
  br i1 %6, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %.preheader
  %7 = zext nneg i32 %5 to i64
  br label %.lr.ph

._crit_edge17:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret i32 0

._crit_edge:                                      ; preds = %20, %.preheader
  %8 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  %9 = add nuw nsw i64 %.01216, 1
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = icmp slt i64 %9, %11
  br i1 %12, label %.preheader, label %._crit_edge17, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph.preheader, %20
  %13 = phi i64 [ %24, %20 ], [ %7, %.lr.ph.preheader ]
  %.01115 = phi i64 [ %22, %20 ], [ 1, %.lr.ph.preheader ]
  %14 = mul nuw nsw i64 %.01115, %.01216
  %.not = icmp slt i64 %14, %13
  br i1 %.not, label %20, label %15

15:                                               ; preds = %.lr.ph
  %16 = sdiv i64 %14, %13
  %17 = mul nsw i64 %16, 10
  %18 = srem i64 %14, %13
  %19 = add nsw i64 %17, %18
  br label %20

20:                                               ; preds = %15, %.lr.ph
  %.0 = phi i64 [ %19, %15 ], [ %14, %.lr.ph ]
  %21 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.0)
  %22 = add nuw nsw i64 %.01115, 1
  %23 = load i32, ptr %1, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = icmp slt i64 %22, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

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

attributes #0 = { mustprogress nofree norecurse 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 = { 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 = { 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}


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