; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/cp/Unique_prime_factors.ll (Z12unique_primei)

; 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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [29 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12unique_primei(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = add nsw i32 %9, 1
  %11 = zext i32 %10 to i64
  %12 = call ptr @llvm.stacksave.p0()
  store ptr %12, ptr %3, align 8
  %13 = alloca i32, i64 %11, align 16
  store i64 %11, ptr %4, align 8
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, 1
  %16 = sext i32 %15 to i64
  call void @llvm.memset.p0.i64(ptr align 16 %13, i8 1, i64 %16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 2, ptr %5, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %49, %1
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = sitofp i32 %18 to double
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = call noundef double @_ZSt4sqrtIiEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i32 noundef %20)
  %22 = fcmp ole double %19, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %17
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %52

24:                                               ; preds = %17
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %13, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = icmp eq i32 %28, 0
  br i1 %29, label %30, label %31

30:                                               ; preds = %24
  br label %49

31:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = load i32, ptr %5, align 4, !tbaa !5
  %34 = mul nsw i32 %32, %33
  store i32 %34, ptr %7, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %44, %31
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = icmp sle i32 %36, %37
  br i1 %38, label %40, label %39

39:                                               ; preds = %35
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %48

40:                                               ; preds = %35
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i32, ptr %13, i64 %42
  store i32 0, ptr %43, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %40
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = load i32, ptr %7, align 4, !tbaa !5
  %47 = add nsw i32 %46, %45
  store i32 %47, ptr %7, align 4, !tbaa !5
  br label %35, !llvm.loop !9

48:                                               ; preds = %39
  br label %49

49:                                               ; preds = %48, %30
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %5, align 4, !tbaa !5
  br label %17, !llvm.loop !11

52:                                               ; preds = %23
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %54 = load i32, ptr %2, align 4, !tbaa !5
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %53, i32 noundef %54)
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %55, ptr noundef @.str.1)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 2, ptr %8, align 4, !tbaa !5
  br label %57

57:                                               ; preds = %78, %52
  %58 = load i32, ptr %8, align 4, !tbaa !5
  %59 = load i32, ptr %2, align 4, !tbaa !5
  %60 = icmp sle i32 %58, %59
  br i1 %60, label %62, label %61

61:                                               ; preds = %57
  store i32 8, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %81

62:                                               ; preds = %57
  %63 = load i32, ptr %8, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds i32, ptr %13, i64 %64
  %66 = load i32, ptr %65, align 4, !tbaa !5
  %67 = icmp eq i32 %66, 0
  br i1 %67, label %68, label %77

68:                                               ; preds = %62
  %69 = load i32, ptr %2, align 4, !tbaa !5
  %70 = load i32, ptr %8, align 4, !tbaa !5
  %71 = srem i32 %69, %70
  %72 = icmp eq i32 %71, 0
  br i1 %72, label %73, label %77

73:                                               ; preds = %68
  %74 = load i32, ptr %8, align 4, !tbaa !5
  %75 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %74)
  %76 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %75, ptr noundef @.str.2)
  br label %77

77:                                               ; preds = %73, %68, %62
  br label %78

78:                                               ; preds = %77
  %79 = load i32, ptr %8, align 4, !tbaa !5
  %80 = add nsw i32 %79, 1
  store i32 %80, ptr %8, align 4, !tbaa !5
  br label %57, !llvm.loop !12

81:                                               ; preds = %61
  %82 = load ptr, ptr %3, align 8
  call void @llvm.stackrestore.p0(ptr %82)
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIiEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i32 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #6

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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 #6 = { "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 #7 = { 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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; 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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [29 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12unique_primei(i32 noundef %0) local_unnamed_addr #0 {
  %2 = add i32 %0, 1
  %3 = zext i32 %2 to i64
  %4 = alloca i32, i64 %3, align 16
  %5 = sext i32 %2 to i64
  call void @llvm.memset.p0.i64(ptr nonnull align 16 %4, i8 1, i64 %5, i1 false)
  %6 = tail call noundef double @_ZSt4sqrtIiEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i32 noundef %0)
  %7 = fcmp ult double %6, 2.000000e+00
  br i1 %7, label %._crit_edge, label %.lr.ph29

._crit_edge:                                      ; preds = %.loopexit, %1
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %9 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %8, i32 noundef %0)
  %10 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull @.str.1)
  %.not30 = icmp slt i32 %0, 2
  br i1 %.not30, label %._crit_edge34, label %.lr.ph33

.lr.ph29:                                         ; preds = %1, %.loopexit
  %indvars.iv37 = phi i64 [ %indvars.iv.next38, %.loopexit ], [ 2, %1 ]
  %indvars.iv35 = phi i32 [ %indvars.iv.next36, %.loopexit ], [ 4, %1 ]
  %indvars.iv = phi i32 [ %indvars.iv.next, %.loopexit ], [ 5, %1 ]
  %11 = getelementptr inbounds i32, ptr %4, i64 %indvars.iv37
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = icmp eq i32 %12, 0
  %14 = mul nuw nsw i64 %indvars.iv37, %indvars.iv37
  %15 = trunc nuw i64 %14 to i32
  %.not2425 = icmp sgt i32 %15, %0
  %or.cond = select i1 %13, i1 true, i1 %.not2425
  br i1 %or.cond, label %.loopexit, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %.lr.ph29
  %16 = zext i32 %indvars.iv35 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv39 = phi i64 [ %16, %.lr.ph.preheader ], [ %indvars.iv.next40, %.lr.ph ]
  %17 = getelementptr inbounds i32, ptr %4, i64 %indvars.iv39
  store i32 0, ptr %17, align 4, !tbaa !5
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, %indvars.iv37
  %18 = trunc nuw i64 %indvars.iv.next40 to i32
  %.not24 = icmp sgt i32 %18, %0
  br i1 %.not24, label %.loopexit, label %.lr.ph, !llvm.loop !9

.loopexit:                                        ; preds = %.lr.ph, %.lr.ph29
  %indvars.iv.next38 = add nuw nsw i64 %indvars.iv37, 1
  %19 = trunc nuw i64 %indvars.iv.next38 to i32
  %20 = uitofp nneg i32 %19 to double
  %21 = tail call noundef double @_ZSt4sqrtIiEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i32 noundef %0)
  %22 = fcmp ult double %21, %20
  %indvars.iv.next = add i32 %indvars.iv, 2
  %indvars.iv.next36 = add i32 %indvars.iv35, %indvars.iv
  br i1 %22, label %._crit_edge, label %.lr.ph29, !llvm.loop !11

._crit_edge34:                                    ; preds = %33, %._crit_edge
  ret void

.lr.ph33:                                         ; preds = %._crit_edge, %33
  %indvars.iv43 = phi i64 [ %indvars.iv.next44, %33 ], [ 2, %._crit_edge ]
  %23 = getelementptr inbounds i32, ptr %4, i64 %indvars.iv43
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = icmp eq i32 %24, 0
  br i1 %25, label %26, label %33

26:                                               ; preds = %.lr.ph33
  %27 = trunc nuw nsw i64 %indvars.iv43 to i32
  %28 = urem i32 %0, %27
  %29 = icmp eq i32 %28, 0
  br i1 %29, label %30, label %33

30:                                               ; preds = %26
  %31 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %27)
  %32 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %31, ptr noundef nonnull @.str.2)
  br label %33

33:                                               ; preds = %.lr.ph33, %26, %30
  %indvars.iv.next44 = add nuw nsw i64 %indvars.iv43, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next44, %3
  br i1 %exitcond.not, label %._crit_edge34, label %.lr.ph33, !llvm.loop !12
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt4sqrtIiEN9__gnu_cxx11__enable_ifIXsr12__is_integerIT_EE7__valueEdE6__typeES2_(i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #3 = { 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 #4 = { "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" }

!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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass