; LLVM IR from tangjz/acm-icpc :: codeforces/gym (101201D)

; 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
@a = external dso_local global [301 x i32], align 16
@fact = external dso_local global [301 x i32], align 16
@f = external dso_local global [2 x [301 x [301 x [301 x i32]]]], align 16
@ans = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [5 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 uwtable
declare dso_local noundef i32 @_Z1Fiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n, ptr noundef @m)
  store i32 1, ptr @fact, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %5

5:                                                ; preds = %29, %0
  %6 = load i32, ptr %2, align 4, !tbaa !5
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = icmp sle i32 %6, %7
  br i1 %8, label %10, label %9

9:                                                ; preds = %5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %32

10:                                               ; preds = %5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds i32, ptr @a, i64 %12
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %13)
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = sub nsw i32 %15, 1
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [301 x i32], ptr @fact, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = load i32, ptr %2, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = mul nsw i64 %20, %22
  %24 = srem i64 %23, 1000000007
  %25 = trunc i64 %24 to i32
  %26 = load i32, ptr %2, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [301 x i32], ptr @fact, i64 0, i64 %27
  store i32 %25, ptr %28, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %10
  %30 = load i32, ptr %2, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %2, align 4, !tbaa !5
  br label %5, !llvm.loop !9

32:                                               ; preds = %9
  %33 = load i32, ptr @n, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds i32, ptr @a, i64 %34
  %36 = getelementptr inbounds i32, ptr %35, i64 1
  call void @_ZSt4sortIPiEvT_S1_(ptr noundef getelementptr inbounds (i32, ptr @a, i64 1), ptr noundef %36)
  call void @llvm.memset.p0.i64(ptr align 16 @f, i8 -1, i64 218167208, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %37

37:                                               ; preds = %61, %32
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = load i32, ptr @n, align 4, !tbaa !5
  %40 = icmp sle i32 %38, %39
  br i1 %40, label %42, label %41

41:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  br label %64

42:                                               ; preds = %37
  %43 = load i32, ptr @ans, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = load i32, ptr %3, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [301 x i32], ptr @a, i64 0, i64 %46
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = load i32, ptr %3, align 4, !tbaa !5
  %51 = sub nsw i32 %50, 1
  %52 = load i32, ptr @n, align 4, !tbaa !5
  %53 = load i32, ptr %3, align 4, !tbaa !5
  %54 = sub nsw i32 %52, %53
  %55 = call noundef i32 @_Z1Fiiii(i32 noundef 1, i32 noundef %51, i32 noundef %54, i32 noundef 0)
  %56 = sext i32 %55 to i64
  %57 = mul nsw i64 %49, %56
  %58 = add nsw i64 %44, %57
  %59 = srem i64 %58, 1000000007
  %60 = trunc i64 %59 to i32
  store i32 %60, ptr @ans, align 4, !tbaa !5
  br label %61

61:                                               ; preds = %42
  %62 = load i32, ptr %3, align 4, !tbaa !5
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %3, align 4, !tbaa !5
  br label %37, !llvm.loop !11

64:                                               ; preds = %41
  %65 = load i32, ptr @ans, align 4, !tbaa !5
  %66 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %65)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) #4

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

declare i32 @printf(ptr noundef, ...) #3

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 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 #3 = { "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 = { inlinehint 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 #5 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #6 = { 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}


; 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
@a = external dso_local global [301 x i32], align 16
@fact = external dso_local local_unnamed_addr global [301 x i32], align 16
@f = external dso_local local_unnamed_addr global [2 x [301 x [301 x [301 x i32]]]], align 16
@ans = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [5 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 uwtable
declare dso_local noundef i32 @_Z1Fiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n, ptr noundef nonnull @m)
  store i32 1, ptr @fact, align 16, !tbaa !5
  %2 = load i32, ptr @n, align 4, !tbaa !5
  %.not15 = icmp slt i32 %2, 1
  br i1 %.not15, label %.._crit_edge_crit_edge, label %.lr.ph

.._crit_edge_crit_edge:                           ; preds = %0
  %.pre = sext i32 %2 to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.._crit_edge_crit_edge ], [ %17, %.lr.ph ]
  %3 = getelementptr inbounds i32, ptr @a, i64 %.pre-phi
  %4 = getelementptr inbounds i8, ptr %3, i64 4
  tail call void @_ZSt4sortIPiEvT_S1_(ptr noundef nonnull getelementptr inbounds (i8, ptr @a, i64 4), ptr noundef nonnull %4)
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(218167208) @f, i8 -1, i64 218167208, i1 false)
  %5 = load i32, ptr @n, align 4, !tbaa !5
  %.not1417 = icmp slt i32 %5, 1
  %.pre27 = load i32, ptr @ans, align 4, !tbaa !5
  br i1 %.not1417, label %._crit_edge21, label %.lr.ph20

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %0 ]
  %6 = getelementptr inbounds i32, ptr @a, i64 %indvars.iv
  %7 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6)
  %8 = add nsw i64 %indvars.iv, -1
  %9 = getelementptr inbounds [301 x i32], ptr @fact, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = mul nsw i64 %indvars.iv, %11
  %13 = srem i64 %12, 1000000007
  %14 = trunc nsw i64 %13 to i32
  %15 = getelementptr inbounds [301 x i32], ptr @fact, i64 0, i64 %indvars.iv
  store i32 %14, ptr %15, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %16 = load i32, ptr @n, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %.not.not = icmp slt i64 %indvars.iv, %17
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge21:                                    ; preds = %.lr.ph20, %._crit_edge
  %18 = phi i32 [ %.pre27, %._crit_edge ], [ %35, %.lr.ph20 ]
  %19 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %18)
  ret i32 0

.lr.ph20:                                         ; preds = %._crit_edge, %.lr.ph20
  %20 = phi i32 [ %35, %.lr.ph20 ], [ %.pre27, %._crit_edge ]
  %indvars.iv24 = phi i64 [ %indvars.iv.next25, %.lr.ph20 ], [ 1, %._crit_edge ]
  %21 = phi i32 [ %36, %.lr.ph20 ], [ %5, %._crit_edge ]
  %22 = sext i32 %20 to i64
  %23 = getelementptr inbounds [301 x i32], ptr @a, i64 0, i64 %indvars.iv24
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = trunc nuw nsw i64 %indvars.iv24 to i32
  %27 = sub nsw i32 %21, %26
  %28 = trunc i64 %indvars.iv24 to i32
  %29 = add i32 %28, -1
  %30 = tail call noundef i32 @_Z1Fiiii(i32 noundef 1, i32 noundef %29, i32 noundef %27, i32 noundef 0)
  %31 = sext i32 %30 to i64
  %32 = mul nsw i64 %31, %25
  %33 = add nsw i64 %32, %22
  %34 = srem i64 %33, 1000000007
  %35 = trunc nsw i64 %34 to i32
  store i32 %35, ptr @ans, align 4, !tbaa !5
  %indvars.iv.next25 = add nuw nsw i64 %indvars.iv24, 1
  %36 = load i32, ptr @n, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %.not14.not = icmp slt i64 %indvars.iv24, %37
  br i1 %.not14.not, label %.lr.ph20, label %._crit_edge21, !llvm.loop !11
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #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 = { 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 #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 = { inlinehint 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 #4 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }

!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: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass