; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Data-Structures/Array/Subarray With Sum Zero/Only_Count_Subarray_with_sum_0.l_79f69a14 (0Pii)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_iterator" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z14subarray_sum_0Pii(ptr noundef %0, i32 noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::map", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::_Rb_tree_iterator", align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 48, ptr %7) #3
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %57, %2
  %14 = load i32, ptr %8, align 4, !tbaa !9
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %61

18:                                               ; preds = %13
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i32, ptr %8, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr %19, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = add nsw i32 %24, %23
  store i32 %25, ptr %6, align 4, !tbaa !9
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %31

28:                                               ; preds = %18
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %5, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %28, %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %32 = invoke ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %33 unwind label %44

33:                                               ; preds = %31
  %34 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %9, i32 0, i32 0
  store ptr %32, ptr %34, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  %35 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #3
  %36 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %12, i32 0, i32 0
  store ptr %35, ptr %36, align 8
  %37 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br i1 %37, label %38, label %52

38:                                               ; preds = %33
  %39 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %40 unwind label %48

40:                                               ; preds = %38
  %41 = load i32, ptr %39, align 4, !tbaa !9
  %42 = load i32, ptr %5, align 4, !tbaa !9
  %43 = add nsw i32 %42, %41
  store i32 %43, ptr %5, align 4, !tbaa !9
  br label %52

44:                                               ; preds = %31
  %45 = landingpad { ptr, i32 }
          cleanup
  %46 = extractvalue { ptr, i32 } %45, 0
  store ptr %46, ptr %10, align 8
  %47 = extractvalue { ptr, i32 } %45, 1
  store i32 %47, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %60

48:                                               ; preds = %52, %38
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %10, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %11, align 4
  br label %60

52:                                               ; preds = %40, %33
  %53 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %54 unwind label %48

54:                                               ; preds = %52
  %55 = load i32, ptr %53, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %53, align 4, !tbaa !9
  br label %57

57:                                               ; preds = %54
  %58 = load i32, ptr %8, align 4, !tbaa !9
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %8, align 4, !tbaa !9
  br label %13, !llvm.loop !11

60:                                               ; preds = %48, %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %63

61:                                               ; preds = %17
  %62 = load i32, ptr %5, align 4, !tbaa !9
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %62

63:                                               ; preds = %60
  %64 = load ptr, ptr %10, align 8
  %65 = load i32, ptr %11, align 4
  %66 = insertvalue { ptr, i32 } poison, ptr %64, 0
  %67 = insertvalue { ptr, i32 } %66, i32 %65, 1
  resume { ptr, i32 } %67
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

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 memory(argmem: readwrite) }
attributes #2 = { 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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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"

%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_iterator" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z14subarray_sum_0Pii(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::map", align 8
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %6 = alloca %"struct.std::_Rb_tree_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %4) #3
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  %7 = icmp sgt i32 %1, 0
  br i1 %7, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %29, %2
  %.011.lcssa = phi i32 [ 0, %2 ], [ %.2, %29 ]
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  ret i32 %.011.lcssa

.lr.ph:                                           ; preds = %.lr.ph.preheader, %29
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %29 ]
  %.01115 = phi i32 [ 0, %.lr.ph.preheader ], [ %.2, %29 ]
  %8 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = add nsw i32 %10, %9
  store i32 %11, ptr %3, align 4, !tbaa !5
  %12 = icmp eq i32 %11, 0
  %13 = zext i1 %12 to i32
  %spec.select = add nsw i32 %.01115, %13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %14 = invoke ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %15 unwind label %23

15:                                               ; preds = %.lr.ph
  store ptr %14, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %16 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  store ptr %16, ptr %6, align 8
  %17 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  br i1 %17, label %18, label %27

18:                                               ; preds = %15
  %19 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %20 unwind label %25

20:                                               ; preds = %18
  %21 = load i32, ptr %19, align 4, !tbaa !5
  %22 = add nsw i32 %21, %spec.select
  br label %27

23:                                               ; preds = %.lr.ph
  %24 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  br label %32

25:                                               ; preds = %27, %18
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %32

27:                                               ; preds = %20, %15
  %.2 = phi i32 [ %22, %20 ], [ %spec.select, %15 ]
  %28 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %29 unwind label %25

29:                                               ; preds = %27
  %30 = load i32, ptr %28, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %28, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

32:                                               ; preds = %25, %23
  %.pn = phi { ptr, i32 } [ %26, %25 ], [ %24, %23 ]
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  resume { ptr, i32 } %.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { 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"}


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