; LLVM IR from tangjz/acm-icpc :: lydsy/4018.ll (Z1fiii)

; 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 void @_Z3incRiii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef, i32 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z1fiii(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
  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
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %15

12:                                               ; preds = %3
  %13 = load i32, ptr %6, align 4, !tbaa !5
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %16, label %15

15:                                               ; preds = %12, %3
  store i32 0, ptr %4, align 4
  br label %55

16:                                               ; preds = %12
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = load i32, ptr %6, align 4, !tbaa !5
  %19 = icmp sgt i32 %17, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %16
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6) #3
  br label %21

21:                                               ; preds = %20, %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %22 = load i32, ptr %5, align 4, !tbaa !5
  %23 = sub nsw i32 %22, 1
  %24 = sext i32 %23 to i64
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = mul nsw i64 %24, %26
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  %30 = sext i32 %29 to i64
  %31 = mul nsw i64 %27, %30
  %32 = sdiv i64 %31, 3
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = srem i64 %32, %34
  %36 = trunc i64 %35 to i32
  store i32 %36, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %37 = load i32, ptr %5, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = load i32, ptr %6, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = mul nsw i64 %38, %40
  %42 = load i32, ptr %6, align 4, !tbaa !5
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = sub nsw i32 %42, %43
  %45 = sext i32 %44 to i64
  %46 = mul nsw i64 %41, %45
  %47 = sdiv i64 %46, 2
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = srem i64 %47, %49
  %51 = trunc i64 %50 to i32
  store i32 %51, ptr %9, align 4, !tbaa !5
  %52 = load i32, ptr %9, align 4, !tbaa !5
  %53 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z3incRiii(ptr noundef nonnull align 4 dereferenceable(4) %8, i32 noundef %52, i32 noundef %53)
  %54 = load i32, ptr %8, align 4, !tbaa !5
  store i32 %54, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %55

55:                                               ; preds = %21, %15
  %56 = load i32, ptr %4, align 4
  ret i32 %56
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #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 willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 = { inlinehint 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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"}


; 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 void @_Z3incRiii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z1fiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  %7 = icmp ne i32 %0, 0
  %8 = icmp ne i32 %1, 0
  %or.cond = and i1 %7, %8
  br i1 %or.cond, label %9, label %35

9:                                                ; preds = %3
  %10 = icmp sgt i32 %0, %1
  br i1 %10, label %11, label %12

11:                                               ; preds = %9
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5) #3
  %.pre = load i32, ptr %4, align 4, !tbaa !5
  %.pre8 = load i32, ptr %5, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %11, %9
  %13 = phi i32 [ %.pre8, %11 ], [ %1, %9 ]
  %14 = phi i32 [ %.pre, %11 ], [ %0, %9 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  %15 = add nsw i32 %14, -1
  %16 = sext i32 %15 to i64
  %17 = sext i32 %14 to i64
  %18 = mul nsw i64 %16, %17
  %19 = add nsw i32 %14, 1
  %20 = sext i32 %19 to i64
  %21 = mul nsw i64 %18, %20
  %22 = sdiv i64 %21, 3
  %23 = sext i32 %2 to i64
  %24 = srem i64 %22, %23
  %25 = trunc nsw i64 %24 to i32
  store i32 %25, ptr %6, align 4, !tbaa !5
  %26 = sext i32 %13 to i64
  %27 = mul nsw i64 %26, %17
  %28 = sub nsw i32 %13, %14
  %29 = sext i32 %28 to i64
  %30 = mul nsw i64 %27, %29
  %31 = sdiv i64 %30, 2
  %32 = srem i64 %31, %23
  %33 = trunc nsw i64 %32 to i32
  call void @_Z3incRiii(ptr noundef nonnull align 4 dereferenceable(4) %6, i32 noundef %33, i32 noundef %2)
  %34 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  br label %35

35:                                               ; preds = %3, %12
  %.0 = phi i32 [ %34, %12 ], [ 0, %3 ]
  ret i32 %.0
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

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

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

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 = { inlinehint 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass