; LLVM IR from MinhasKamal/AlgorithmImplementations :: playWithNumbers/primeNumber (Factors)

; 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 [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i32, align 4
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  br label %7

7:                                                ; preds = %49, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %2)
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = icmp sle i64 %10, 0
  br i1 %11, label %12, label %14

12:                                               ; preds = %7
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %3, align 4
  br label %47

14:                                               ; preds = %7
  %15 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 1, ptr %5, align 4, !tbaa !9
  store i64 2, ptr %4, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %30, %14
  %17 = load i64, ptr %4, align 8, !tbaa !5
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = sdiv i64 %18, 2
  %20 = icmp sle i64 %17, %19
  br i1 %20, label %21, label %33

21:                                               ; preds = %16
  %22 = load i64, ptr %2, align 8, !tbaa !5
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = srem i64 %22, %23
  %25 = icmp eq i64 %24, 0
  br i1 %25, label %26, label %29

26:                                               ; preds = %21
  %27 = load i64, ptr %4, align 8, !tbaa !5
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i64 noundef %27)
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %26, %21
  br label %30

30:                                               ; preds = %29
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %4, align 8, !tbaa !5
  br label %16, !llvm.loop !11

33:                                               ; preds = %16
  %34 = load i32, ptr %5, align 4, !tbaa !9
  %35 = icmp eq i32 %34, 1
  br i1 %35, label %36, label %38

36:                                               ; preds = %33
  %37 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  br label %38

38:                                               ; preds = %36, %33
  %39 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 1, ptr %6, align 4, !tbaa !9
  %40 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  %41 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.7, ptr noundef %6)
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = icmp ne i32 %42, 0
  br i1 %43, label %45, label %44

44:                                               ; preds = %38
  store i32 2, ptr %3, align 4
  br label %46

45:                                               ; preds = %38
  store i32 0, ptr %3, align 4
  br label %46

46:                                               ; preds = %45, %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %47

47:                                               ; preds = %46, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %48 = load i32, ptr %3, align 4
  switch i32 %48, label %53 [
    i32 0, label %49
    i32 1, label %51
    i32 2, label %50
  ]

49:                                               ; preds = %47
  br label %7

50:                                               ; preds = %47
  store i32 0, ptr %1, align 4
  br label %51

51:                                               ; preds = %50, %47
  %52 = load i32, ptr %1, align 4
  ret i32 %52

53:                                               ; preds = %47
  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

; 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@.str = external hidden unnamed_addr constant [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = icmp slt i64 %5, 1
  br i1 %6, label %._crit_edge20, label %.lr.ph19

._crit_edge20:                                    ; preds = %26, %0
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %select.unfold

.lr.ph19:                                         ; preds = %0, %26
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %9 = load i64, ptr %1, align 8, !tbaa !5
  %.not15 = icmp slt i64 %9, 4
  br i1 %.not15, label %._crit_edge.thread, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph19, %15
  %10 = phi i64 [ %16, %15 ], [ %9, %.lr.ph19 ]
  %.017 = phi i32 [ %.1, %15 ], [ 1, %.lr.ph19 ]
  %.0716 = phi i64 [ %17, %15 ], [ 2, %.lr.ph19 ]
  %11 = srem i64 %10, %.0716
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %.lr.ph
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i64 noundef %.0716)
  %.pre = load i64, ptr %1, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %.lr.ph, %13
  %16 = phi i64 [ %.pre, %13 ], [ %10, %.lr.ph ]
  %.1 = phi i32 [ 0, %13 ], [ %.017, %.lr.ph ]
  %17 = add nuw nsw i64 %.0716, 1
  %18 = sdiv i64 %16, 2
  %.not.not = icmp slt i64 %.0716, %18
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %15
  %19 = icmp eq i32 %.1, 1
  br i1 %19, label %._crit_edge.thread, label %21

._crit_edge.thread:                               ; preds = %.lr.ph19, %._crit_edge
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  br label %21

21:                                               ; preds = %._crit_edge.thread, %._crit_edge
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  store i32 1, ptr %2, align 4, !tbaa !11
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.7, ptr noundef nonnull %2)
  %25 = load i32, ptr %2, align 4, !tbaa !11
  %.not12 = icmp eq i32 %25, 0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  br i1 %.not12, label %select.unfold, label %26

26:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1)
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = icmp slt i64 %29, 1
  br i1 %30, label %._crit_edge20, label %.lr.ph19

select.unfold:                                    ; preds = %21, %._crit_edge20
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  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: 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}


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