; LLVM IR from VastoLorde95/Competitive-Programming :: CodeChef/WF/Medium Hard/CARDSHUF (brute)

; 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"

@deck = external dso_local global ptr, align 8
@.str = external hidden unnamed_addr constant [3 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
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4)
  %10 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z10init_cardsi(i32 noundef %10)
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %28, %0
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = icmp sle i32 %12, %13
  br i1 %14, label %15, label %31

15:                                               ; preds = %11
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %5)
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %6)
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z7shuffleiii(i32 noundef %19, i32 noundef %20, i32 noundef %21)
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = srem i32 %22, 100
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %25, label %27

25:                                               ; preds = %15
  %26 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z5flushi(i32 noundef %26)
  br label %27

27:                                               ; preds = %25, %15
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %2, align 4, !tbaa !5
  br label %11, !llvm.loop !9

31:                                               ; preds = %11
  %32 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z5flushi(i32 noundef %32)
  %33 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z12print_resulti(i32 noundef %33)
  %34 = load ptr, ptr @deck, align 8, !tbaa !11
  call void @_Z8free_memP14deck_segment_t(ptr noundef %34)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  ret i32 0
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_Z10init_cardsi(i32 noundef) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z7shuffleiii(i32 noundef, i32 noundef, i32 noundef) #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z5flushi(i32 noundef) #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z12print_resulti(i32 noundef) #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z8free_memP14deck_segment_t(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 #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 = { 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 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}


; 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"

@deck = external dso_local local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %8 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z10init_cardsi(i32 noundef %8)
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %.not3 = icmp slt i32 %9, 1
  br i1 %.not3, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %20
  %.04 = phi i32 [ %21, %20 ], [ 1, %0 ]
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %5)
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = load i32, ptr %5, align 4, !tbaa !5
  call void @_Z7shuffleiii(i32 noundef %13, i32 noundef %14, i32 noundef %15)
  %16 = urem i32 %.04, 100
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %20

18:                                               ; preds = %.lr.ph
  %19 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z5flushi(i32 noundef %19)
  br label %20

20:                                               ; preds = %.lr.ph, %18
  %21 = add nuw nsw i32 %.04, 1
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %.not.not = icmp slt i32 %.04, %22
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %20, %0
  %23 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z5flushi(i32 noundef %23)
  %24 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z12print_resulti(i32 noundef %24)
  %25 = load ptr, ptr @deck, align 8, !tbaa !11
  call void @_Z8free_memP14deck_segment_t(ptr noundef %25)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  ret i32 0
}

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

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_Z10init_cardsi(i32 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z7shuffleiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z5flushi(i32 noundef) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z12print_resulti(i32 noundef) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z8free_memP14deck_segment_t(ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #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 = { 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 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass