; LLVM IR from lzyrapx/Competitive-Programming :: HDUOJ/5829(NTT).ll (Z4initv)

; 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"

@inv = external dso_local global [400010 x i64], align 16
@fac = external dso_local global [400010 x i64], align 16
@inv2 = external dso_local global i64, align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z3Powxx(i64 noundef, i64 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 nounwind uwtable
define dso_local void @_Z4initv() #0 {
  %1 = alloca i64, align 8
  %2 = call noundef i64 @_Z3Powxx(i64 noundef 2, i64 noundef 998244351)
  store i64 %2, ptr @inv2, align 8, !tbaa !5
  store i64 1, ptr @inv, align 16, !tbaa !5
  store i64 1, ptr getelementptr inbounds ([400010 x i64], ptr @inv, i64 0, i64 1), align 8, !tbaa !5
  store i64 1, ptr getelementptr inbounds ([400010 x i64], ptr @fac, i64 0, i64 1), align 8, !tbaa !5
  store i64 1, ptr @fac, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #2
  store i64 2, ptr %1, align 8, !tbaa !5
  br label %3

3:                                                ; preds = %28, %0
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = sitofp i64 %4 to double
  %6 = fcmp ole double %5, 1.000000e+05
  br i1 %6, label %8, label %7

7:                                                ; preds = %3
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #2
  br label %31

8:                                                ; preds = %3
  %9 = load i64, ptr %1, align 8, !tbaa !5
  %10 = sub nsw i64 %9, 1
  %11 = getelementptr inbounds [400010 x i64], ptr @inv, i64 0, i64 %10
  %12 = load i64, ptr %11, align 8, !tbaa !5
  %13 = load i64, ptr %1, align 8, !tbaa !5
  %14 = call noundef i64 @_Z3Powxx(i64 noundef %13, i64 noundef 998244351)
  %15 = mul nsw i64 %12, %14
  %16 = srem i64 %15, 998244353
  %17 = load i64, ptr %1, align 8, !tbaa !5
  %18 = getelementptr inbounds [400010 x i64], ptr @inv, i64 0, i64 %17
  store i64 %16, ptr %18, align 8, !tbaa !5
  %19 = load i64, ptr %1, align 8, !tbaa !5
  %20 = sub nsw i64 %19, 1
  %21 = getelementptr inbounds [400010 x i64], ptr @fac, i64 0, i64 %20
  %22 = load i64, ptr %21, align 8, !tbaa !5
  %23 = load i64, ptr %1, align 8, !tbaa !5
  %24 = mul nsw i64 %22, %23
  %25 = srem i64 %24, 998244353
  %26 = load i64, ptr %1, align 8, !tbaa !5
  %27 = getelementptr inbounds [400010 x i64], ptr @fac, i64 0, i64 %26
  store i64 %25, ptr %27, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %8
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = add nsw i64 %29, 1
  store i64 %30, ptr %1, align 8, !tbaa !5
  br label %3, !llvm.loop !9

31:                                               ; preds = %7
  ret void
}

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 = { 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 = !{!"long long", !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"

@inv = external dso_local local_unnamed_addr global [400010 x i64], align 16
@fac = external dso_local local_unnamed_addr global [400010 x i64], align 16
@inv2 = external dso_local local_unnamed_addr global i64, align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z3Powxx(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4initv() local_unnamed_addr #0 {
  %1 = tail call noundef i64 @_Z3Powxx(i64 noundef 2, i64 noundef 998244351)
  store i64 %1, ptr @inv2, align 8, !tbaa !5
  store i64 1, ptr @inv, align 16, !tbaa !5
  store i64 1, ptr getelementptr inbounds (i8, ptr @inv, i64 8), align 8, !tbaa !5
  store i64 1, ptr getelementptr inbounds (i8, ptr @fac, i64 8), align 8, !tbaa !5
  store i64 1, ptr @fac, align 16, !tbaa !5
  br label %3

2:                                                ; preds = %3
  ret void

3:                                                ; preds = %0, %3
  %4 = phi i64 [ 1, %0 ], [ %8, %3 ]
  %.08 = phi i64 [ 2, %0 ], [ %15, %3 ]
  %5 = add nsw i64 %.08, -1
  %6 = tail call noundef i64 @_Z3Powxx(i64 noundef %.08, i64 noundef 998244351)
  %7 = mul nsw i64 %6, %4
  %8 = srem i64 %7, 998244353
  %9 = getelementptr inbounds [400010 x i64], ptr @inv, i64 0, i64 %.08
  store i64 %8, ptr %9, align 8, !tbaa !5
  %10 = getelementptr inbounds [400010 x i64], ptr @fac, i64 0, i64 %5
  %11 = load i64, ptr %10, align 8, !tbaa !5
  %12 = mul nsw i64 %11, %.08
  %13 = srem i64 %12, 998244353
  %14 = getelementptr inbounds [400010 x i64], ptr @fac, i64 0, i64 %.08
  store i64 %13, ptr %14, align 8, !tbaa !5
  %15 = add nuw nsw i64 %.08, 1
  %exitcond.not = icmp eq i64 %15, 100001
  br i1 %exitcond.not, label %2, label %3, !llvm.loop !9
}

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" }

!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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass