; LLVM IR from MinhasKamal/AlgorithmImplementations :: playWithNumbers/time (LeapYearCounter)

; 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"

@.str = external hidden unnamed_addr constant [18 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [24 x i8], align 1
@stdin = external global ptr, align 8
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i8, align 1
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  br label %5

5:                                                ; preds = %50, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  %6 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %2)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = srem i32 %8, 400
  %10 = icmp eq i32 %9, 0
  br i1 %10, label %11, label %14

11:                                               ; preds = %5
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %12)
  br label %33

14:                                               ; preds = %5
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = srem i32 %15, 100
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %21

18:                                               ; preds = %14
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %19)
  br label %32

21:                                               ; preds = %14
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = srem i32 %22, 4
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %25, label %28

25:                                               ; preds = %21
  %26 = load i32, ptr %2, align 4, !tbaa !5
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %26)
  br label %31

28:                                               ; preds = %21
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %29)
  br label %31

31:                                               ; preds = %28, %25
  br label %32

32:                                               ; preds = %31, %18
  br label %33

33:                                               ; preds = %32, %11
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #3
  %34 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %35 = load ptr, ptr @stdin, align 8, !tbaa !9
  %36 = call i32 @fflush(ptr noundef %35)
  %37 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.5, ptr noundef %3)
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  %39 = load i8, ptr %3, align 1, !tbaa !11
  %40 = sext i8 %39 to i32
  %41 = icmp ne i32 %40, 99
  br i1 %41, label %42, label %47

42:                                               ; preds = %33
  %43 = load i8, ptr %3, align 1, !tbaa !11
  %44 = sext i8 %43 to i32
  %45 = icmp ne i32 %44, 67
  br i1 %45, label %46, label %47

46:                                               ; preds = %42
  store i32 2, ptr %4, align 4
  br label %48

47:                                               ; preds = %42, %33
  store i32 0, ptr %4, align 4
  br label %48

48:                                               ; preds = %47, %46
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  %49 = load i32, ptr %4, align 4
  switch i32 %49, label %52 [
    i32 0, label %50
    i32 2, label %51
  ]

50:                                               ; preds = %48
  br label %5

51:                                               ; preds = %48
  ret i32 0

52:                                               ; preds = %48
  unreachable
}

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

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

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

declare i32 @fflush(ptr noundef) #2

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

attributes #0 = { 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 = { "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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !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"

@.str = external hidden unnamed_addr constant [18 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [24 x i8], align 1
@stdin = external local_unnamed_addr global ptr, align 8
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i8, align 1
  br label %3

3:                                                ; preds = %15, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  %4 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1)
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = srem i32 %6, 400
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %15, label %9

9:                                                ; preds = %3
  %10 = srem i32 %6, 100
  %11 = icmp eq i32 %10, 0
  br i1 %11, label %15, label %12

12:                                               ; preds = %9
  %13 = and i32 %6, 3
  %14 = icmp eq i32 %13, 0
  %.str.2..str.3 = select i1 %14, ptr @.str.2, ptr @.str.3
  br label %15

15:                                               ; preds = %12, %9, %3
  %.str.3.sink = phi ptr [ @.str.2, %3 ], [ @.str.3, %9 ], [ %.str.2..str.3, %12 ]
  %16 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.3.sink, i32 noundef %6)
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #3
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %18 = load ptr, ptr @stdin, align 8, !tbaa !9
  %19 = call i32 @fflush(ptr noundef %18)
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.5, ptr noundef nonnull %2)
  %21 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  %22 = load i8, ptr %2, align 1
  %23 = and i8 %22, -33
  %or.cond.not = icmp eq i8 %23, 67
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  br i1 %or.cond.not, label %3, label %24

24:                                               ; preds = %15
  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 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

; Function Attrs: nofree nounwind
declare noundef i32 @fflush(ptr nocapture noundef) local_unnamed_addr #2

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

attributes #0 = { nofree 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 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass