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

; 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 [19 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 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 i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %6 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  store i64 3, ptr %3, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %36, %0
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp sle i64 %10, %11
  br i1 %12, label %13, label %39

13:                                               ; preds = %9
  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 3, ptr %4, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %26, %13
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = sdiv i64 %16, 3
  %18 = icmp sle i64 %15, %17
  br i1 %18, label %19, label %29

19:                                               ; preds = %14
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = srem i64 %20, %21
  %23 = icmp eq i64 %22, 0
  br i1 %23, label %24, label %25

24:                                               ; preds = %19
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %24, %19
  br label %26

26:                                               ; preds = %25
  %27 = load i64, ptr %4, align 8, !tbaa !5
  %28 = add nsw i64 %27, 2
  store i64 %28, ptr %4, align 8, !tbaa !5
  br label %14, !llvm.loop !11

29:                                               ; preds = %14
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = icmp eq i32 %30, 1
  br i1 %31, label %32, label %35

32:                                               ; preds = %29
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %33)
  br label %35

35:                                               ; preds = %32, %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %36

36:                                               ; preds = %35
  %37 = load i64, ptr %3, align 8, !tbaa !5
  %38 = add nsw i64 %37, 2
  store i64 %38, ptr %3, align 8, !tbaa !5
  br label %9, !llvm.loop !13

39:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  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 @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", !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"}
!13 = distinct !{!13, !12}


; 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 [19 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1)
  %4 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %.not15 = icmp slt i64 %5, 3
  br i1 %.not15, label %._crit_edge17, label %.preheader

.preheader:                                       ; preds = %0, %13
  %6 = phi i64 [ %14, %13 ], [ %5, %0 ]
  %.01016 = phi i64 [ %15, %13 ], [ 3, %0 ]
  %7 = udiv i64 %.01016, 3
  %.not1112 = icmp ult i64 %.01016, 9
  br i1 %.not1112, label %._crit_edge.thread, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.014 = phi i32 [ %spec.select, %.lr.ph ], [ 1, %.preheader ]
  %.0913 = phi i64 [ %10, %.lr.ph ], [ 3, %.preheader ]
  %8 = urem i64 %.01016, %.0913
  %9 = icmp eq i64 %8, 0
  %spec.select = select i1 %9, i32 0, i32 %.014
  %10 = add nuw nsw i64 %.0913, 2
  %.not11 = icmp ugt i64 %10, %7
  br i1 %.not11, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph
  %11 = icmp eq i32 %spec.select, 1
  br i1 %11, label %._crit_edge.thread, label %13

._crit_edge.thread:                               ; preds = %.preheader, %._crit_edge
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %.01016)
  %.pre = load i64, ptr %1, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %._crit_edge.thread, %._crit_edge
  %14 = phi i64 [ %.pre, %._crit_edge.thread ], [ %6, %._crit_edge ]
  %15 = add nuw nsw i64 %.01016, 2
  %.not = icmp sgt i64 %15, %14
  br i1 %.not, label %._crit_edge17, label %.preheader, !llvm.loop !11

._crit_edge17:                                    ; preds = %13, %0
  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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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