; LLVM IR from Tunghohin/Competitive_Coding :: Nowcoder/33195_H.ll (Z1Ciii)

; 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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4qpowiii(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 nounwind uwtable
define dso_local noundef i32 @_Z1Ciii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %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
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  %11 = load i32, ptr %6, align 4, !tbaa !5
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = icmp sgt i32 %11, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %53

15:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 1, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 1, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  %16 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %16, ptr %10, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %45, %15
  %18 = load i32, ptr %9, align 4, !tbaa !5
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = icmp sle i32 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  br label %50

22:                                               ; preds = %17
  %23 = load i32, ptr %8, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = load i32, ptr %10, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = mul nsw i64 %24, %26
  %28 = load i32, ptr %7, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = srem i64 %27, %29
  %31 = trunc i64 %30 to i32
  store i32 %31, ptr %8, align 4, !tbaa !5
  %32 = load i32, ptr %8, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = load i32, ptr %7, align 4, !tbaa !5
  %36 = sub nsw i32 %35, 2
  %37 = load i32, ptr %7, align 4, !tbaa !5
  %38 = call noundef i32 @_Z4qpowiii(i32 noundef %34, i32 noundef %36, i32 noundef %37)
  %39 = sext i32 %38 to i64
  %40 = mul nsw i64 %33, %39
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = srem i64 %40, %42
  %44 = trunc i64 %43 to i32
  store i32 %44, ptr %8, align 4, !tbaa !5
  br label %45

45:                                               ; preds = %22
  %46 = load i32, ptr %9, align 4, !tbaa !5
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %9, align 4, !tbaa !5
  %48 = load i32, ptr %10, align 4, !tbaa !5
  %49 = add nsw i32 %48, -1
  store i32 %49, ptr %10, align 4, !tbaa !5
  br label %17, !llvm.loop !9

50:                                               ; preds = %21
  %51 = load i32, ptr %8, align 4, !tbaa !5
  %52 = srem i32 %51, 998244353
  store i32 %52, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  br label %53

53:                                               ; preds = %50, %14
  %54 = load i32, ptr %4, align 4
  ret i32 %54
}

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 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4qpowiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -998244352, 998244353) i32 @_Z1Ciii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %1, %0
  br i1 %4, label %._crit_edge, label %.preheader

.preheader:                                       ; preds = %3
  %.not22 = icmp slt i32 %1, 1
  br i1 %.not22, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader
  %5 = sext i32 %2 to i64
  %6 = add nsw i32 %2, -2
  %7 = sext i32 %0 to i64
  br label %10

._crit_edge.loopexit:                             ; preds = %10
  %8 = trunc nsw i64 %16 to i32
  %9 = srem i32 %8, 998244353
  br label %._crit_edge

10:                                               ; preds = %.lr.ph, %10
  %indvars.iv = phi i64 [ %7, %.lr.ph ], [ %indvars.iv.next, %10 ]
  %.01724 = phi i32 [ 1, %.lr.ph ], [ %17, %10 ]
  %.01823 = phi i64 [ 1, %.lr.ph ], [ %16, %10 ]
  %11 = mul nsw i64 %.01823, %indvars.iv
  %12 = srem i64 %11, %5
  %13 = tail call noundef i32 @_Z4qpowiii(i32 noundef %.01724, i32 noundef %6, i32 noundef %2)
  %14 = sext i32 %13 to i64
  %15 = mul nsw i64 %12, %14
  %16 = srem i64 %15, %5
  %17 = add nuw i32 %.01724, 1
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %exitcond.not = icmp eq i32 %.01724, %1
  br i1 %exitcond.not, label %._crit_edge.loopexit, label %10, !llvm.loop !5

._crit_edge:                                      ; preds = %.preheader, %._crit_edge.loopexit, %3
  %.019 = phi i32 [ 0, %3 ], [ 1, %.preheader ], [ %9, %._crit_edge.loopexit ]
  ret i32 %.019
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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