; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: DataStructure/Graphs/Sources (DirectedGraph)

; 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"

%struct.DirectedGraph = type { ptr, ptr, ptr }
%struct.DirGraphNode = type { ptr, ptr, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [42 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #2

declare ptr @hashMapGet(ptr noundef, ptr noundef) #3

declare i32 @arrayListGetIndex(ptr noundef, ptr noundef) #3

declare ptr @arrayListRemoveAtIndexWtFr(ptr noundef, i32 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local void @dirGraphRemoveEdge(ptr noundef %0, ptr noundef %1, ptr noundef %2) #4 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %16

13:                                               ; preds = %3
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef @.str.7, ptr noundef @.str.8, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83386157) #6
  unreachable

16:                                               ; preds = %3
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %19, label %22

19:                                               ; preds = %16
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef @.str.10, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

22:                                               ; preds = %16
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %28

25:                                               ; preds = %22
  %26 = load ptr, ptr @stderr, align 8, !tbaa !5
  %27 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %26, ptr noundef @.str, ptr noundef @.str.11, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

28:                                               ; preds = %22
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.DirectedGraph, ptr %31, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8, !tbaa !9
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = call ptr @hashMapGet(ptr noundef %33, ptr noundef %34)
  store ptr %35, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.DirectedGraph, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !9
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  %40 = call ptr @hashMapGet(ptr noundef %38, ptr noundef %39)
  store ptr %40, ptr %8, align 8, !tbaa !5
  %41 = load ptr, ptr %7, align 8, !tbaa !5
  %42 = icmp eq ptr %41, null
  br i1 %42, label %46, label %43

43:                                               ; preds = %30
  %44 = load ptr, ptr %8, align 8, !tbaa !5
  %45 = icmp eq ptr %44, null
  br i1 %45, label %46, label %47

46:                                               ; preds = %43, %30
  store i32 1, ptr %9, align 4
  br label %62

47:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  %48 = load ptr, ptr %7, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.DirGraphNode, ptr %48, i32 0, i32 1
  %50 = load ptr, ptr %49, align 8, !tbaa !11
  %51 = load ptr, ptr %8, align 8, !tbaa !5
  %52 = call i32 @arrayListGetIndex(ptr noundef %50, ptr noundef %51)
  store i32 %52, ptr %10, align 4, !tbaa !13
  %53 = load i32, ptr %10, align 4, !tbaa !13
  %54 = icmp ne i32 %53, -1
  br i1 %54, label %55, label %61

55:                                               ; preds = %47
  %56 = load ptr, ptr %7, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.DirGraphNode, ptr %56, i32 0, i32 1
  %58 = load ptr, ptr %57, align 8, !tbaa !11
  %59 = load i32, ptr %10, align 4, !tbaa !13
  %60 = call ptr @arrayListRemoveAtIndexWtFr(ptr noundef %58, i32 noundef %59)
  br label %61

61:                                               ; preds = %55, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  store i32 0, ptr %9, align 4
  br label %62

62:                                               ; preds = %61, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  %63 = load i32, ptr %9, align 4
  switch i32 %63, label %65 [
    i32 0, label %64
    i32 1, label %64
  ]

64:                                               ; preds = %62, %62
  ret void

65:                                               ; preds = %62
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { noreturn 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 = { "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 = { 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 = { nounwind }
attributes #6 = { noreturn 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"DirectedGraph", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!12, !6, i64 8}
!12 = !{!"DirGraphNode", !6, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [42 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [31 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [17 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #1

declare ptr @hashMapGet(ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @arrayListGetIndex(ptr noundef, ptr noundef) local_unnamed_addr #2

declare ptr @arrayListRemoveAtIndexWtFr(ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @dirGraphRemoveEdge(ptr noundef readonly %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #3 {
  %4 = icmp eq ptr %0, null
  br i1 %4, label %5, label %8

5:                                                ; preds = %3
  %6 = load ptr, ptr @stderr, align 8, !tbaa !5
  %7 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef nonnull @.str.7, ptr noundef nonnull @.str.8, ptr noundef nonnull @.str.2) #4
  tail call void @exit(i32 noundef -83386157) #5
  unreachable

8:                                                ; preds = %3
  %9 = icmp eq ptr %1, null
  br i1 %9, label %10, label %13

10:                                               ; preds = %8
  %11 = load ptr, ptr @stderr, align 8, !tbaa !5
  %12 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef nonnull @.str, ptr noundef nonnull @.str.10, ptr noundef nonnull @.str.2) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

13:                                               ; preds = %8
  %14 = icmp eq ptr %2, null
  br i1 %14, label %15, label %18

15:                                               ; preds = %13
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str, ptr noundef nonnull @.str.11, ptr noundef nonnull @.str.2) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

18:                                               ; preds = %13
  %19 = load ptr, ptr %0, align 8, !tbaa !9
  %20 = tail call ptr @hashMapGet(ptr noundef %19, ptr noundef nonnull %1) #6
  %21 = load ptr, ptr %0, align 8, !tbaa !9
  %22 = tail call ptr @hashMapGet(ptr noundef %21, ptr noundef nonnull %2) #6
  %23 = icmp eq ptr %20, null
  %24 = icmp eq ptr %22, null
  %or.cond = select i1 %23, i1 true, i1 %24
  br i1 %or.cond, label %32, label %25

25:                                               ; preds = %18
  %26 = getelementptr inbounds i8, ptr %20, i64 8
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = tail call i32 @arrayListGetIndex(ptr noundef %27, ptr noundef nonnull %22) #6
  %.not = icmp eq i32 %28, -1
  br i1 %.not, label %32, label %29

29:                                               ; preds = %25
  %30 = load ptr, ptr %26, align 8, !tbaa !11
  %31 = tail call ptr @arrayListRemoveAtIndexWtFr(ptr noundef %30, i32 noundef %28) #6
  br label %32

32:                                               ; preds = %25, %29, %18
  ret void
}

attributes #0 = { 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 #1 = { noreturn 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 #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 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 = { cold nounwind }
attributes #5 = { noreturn nounwind }
attributes #6 = { 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"DirectedGraph", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!12, !6, i64 8}
!12 = !{!"DirGraphNode", !6, i64 0, !6, i64 8, !6, i64 16}


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