; LLVM IR from tangjz/acm-icpc :: codeforces/complete (796A)

; 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"

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@q = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@ans = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 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
  store i32 0, ptr %1, align 4
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n, ptr noundef @m, ptr noundef @q)
  store i32 2147483647, ptr @ans, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %31, %0
  %5 = load i32, ptr %2, align 4, !tbaa !5
  %6 = load i32, ptr @n, align 4, !tbaa !5
  %7 = icmp sle i32 %5, %6
  br i1 %7, label %9, label %8

8:                                                ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %34

9:                                                ; preds = %4
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef @x)
  %11 = load i32, ptr @x, align 4, !tbaa !5
  %12 = icmp ne i32 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  br label %31

14:                                               ; preds = %9
  %15 = load i32, ptr @x, align 4, !tbaa !5
  %16 = load i32, ptr @q, align 4, !tbaa !5
  %17 = icmp sle i32 %15, %16
  br i1 %17, label %18, label %30

18:                                               ; preds = %14
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = load i32, ptr @m, align 4, !tbaa !5
  %21 = sub nsw i32 %19, %20
  %22 = call i32 @llvm.abs.i32(i32 %21, i1 true)
  %23 = load i32, ptr @ans, align 4, !tbaa !5
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %25, label %30

25:                                               ; preds = %18
  %26 = load i32, ptr %2, align 4, !tbaa !5
  %27 = load i32, ptr @m, align 4, !tbaa !5
  %28 = sub nsw i32 %26, %27
  %29 = call i32 @llvm.abs.i32(i32 %28, i1 true)
  store i32 %29, ptr @ans, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %25, %18, %14
  br label %31

31:                                               ; preds = %30, %13
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %2, align 4, !tbaa !5
  br label %4, !llvm.loop !9

34:                                               ; preds = %8
  %35 = load i32, ptr @ans, align 4, !tbaa !5
  %36 = mul nsw i32 %35, 10
  %37 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %36)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

declare i32 @printf(ptr noundef, ...) #1

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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = distinct !{!9, !10}
!10 = !{!"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"

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@q = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@ans = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n, ptr noundef nonnull @m, ptr noundef nonnull @q)
  store i32 2147483647, ptr @ans, align 4, !tbaa !5
  %2 = load i32, ptr @n, align 4, !tbaa !5
  %.not8 = icmp slt i32 %2, 1
  br i1 %.not8, label %._crit_edge, label %.lr.ph

._crit_edge.loopexit:                             ; preds = %16
  %.pre = load i32, ptr @ans, align 4, !tbaa !5
  %3 = mul nsw i32 %.pre, 10
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %0
  %4 = phi i32 [ %3, %._crit_edge.loopexit ], [ -10, %0 ]
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %4)
  ret i32 0

.lr.ph:                                           ; preds = %0, %16
  %.09 = phi i32 [ %17, %16 ], [ 1, %0 ]
  %6 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull @x)
  %7 = load i32, ptr @x, align 4, !tbaa !5
  %.not6 = icmp eq i32 %7, 0
  %8 = load i32, ptr @q, align 4
  %.not7 = icmp sgt i32 %7, %8
  %or.cond = select i1 %.not6, i1 true, i1 %.not7
  br i1 %or.cond, label %16, label %9

9:                                                ; preds = %.lr.ph
  %10 = load i32, ptr @m, align 4, !tbaa !5
  %11 = sub nsw i32 %.09, %10
  %12 = tail call i32 @llvm.abs.i32(i32 %11, i1 true)
  %13 = load i32, ptr @ans, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %15, label %16

15:                                               ; preds = %9
  store i32 %12, ptr @ans, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %9, %15, %.lr.ph
  %17 = add nuw nsw i32 %.09, 1
  %18 = load i32, ptr @n, align 4, !tbaa !5
  %.not.not = icmp slt i32 %.09, %18
  br i1 %.not.not, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !9
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

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 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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"}


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