; 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.9 = external hidden unnamed_addr constant [14 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 void @free(ptr noundef) #1

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

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

; Function Attrs: nounwind uwtable
define dso_local void @dirGraphRemoveNode(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %15

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

15:                                               ; preds = %2
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = icmp eq ptr %16, null
  br i1 %17, label %18, label %21

18:                                               ; preds = %15
  %19 = load ptr, ptr @stderr, align 8, !tbaa !5
  %20 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %19, ptr noundef @.str, ptr noundef @.str.9, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

21:                                               ; preds = %15
  br label %22

22:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.DirectedGraph, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = call ptr @hashMapGet(ptr noundef %25, ptr noundef %26)
  store ptr %27, ptr %5, align 8, !tbaa !5
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = icmp eq ptr %28, null
  br i1 %29, label %30, label %31

30:                                               ; preds = %22
  store i32 1, ptr %6, align 4
  br label %76

31:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %32 = load ptr, ptr %3, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.DirectedGraph, ptr %32, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8, !tbaa !9
  %35 = call ptr @hashMapToArray(ptr noundef %34)
  store ptr %35, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !11
  br label %36

36:                                               ; preds = %67, %31
  %37 = load i32, ptr %8, align 4, !tbaa !11
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.DirectedGraph, ptr %38, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8, !tbaa !9
  %41 = call i32 @hashMapGetLength(ptr noundef %40)
  %42 = icmp slt i32 %37, %41
  br i1 %42, label %44, label %43

43:                                               ; preds = %36
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %70

44:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  %45 = load ptr, ptr %7, align 8, !tbaa !5
  %46 = load i32, ptr %8, align 4, !tbaa !11
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds ptr, ptr %45, i64 %47
  %49 = load ptr, ptr %48, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.DirGraphNode, ptr %49, i32 0, i32 1
  %51 = load ptr, ptr %50, align 8, !tbaa !13
  %52 = load ptr, ptr %5, align 8, !tbaa !5
  %53 = call i32 @arrayListGetIndex(ptr noundef %51, ptr noundef %52)
  store i32 %53, ptr %9, align 4, !tbaa !11
  %54 = load i32, ptr %9, align 4, !tbaa !11
  %55 = icmp ne i32 %54, -1
  br i1 %55, label %56, label %66

56:                                               ; preds = %44
  %57 = load ptr, ptr %7, align 8, !tbaa !5
  %58 = load i32, ptr %8, align 4, !tbaa !11
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds ptr, ptr %57, i64 %59
  %61 = load ptr, ptr %60, align 8, !tbaa !5
  %62 = getelementptr inbounds %struct.DirGraphNode, ptr %61, i32 0, i32 1
  %63 = load ptr, ptr %62, align 8, !tbaa !13
  %64 = load i32, ptr %9, align 4, !tbaa !11
  %65 = call ptr @arrayListRemoveAtIndexWtFr(ptr noundef %63, i32 noundef %64)
  br label %66

66:                                               ; preds = %56, %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %67

67:                                               ; preds = %66
  %68 = load i32, ptr %8, align 4, !tbaa !11
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %8, align 4, !tbaa !11
  br label %36, !llvm.loop !15

70:                                               ; preds = %43
  %71 = load ptr, ptr %7, align 8, !tbaa !5
  call void @free(ptr noundef %71) #5
  %72 = load ptr, ptr %3, align 8, !tbaa !5
  %73 = getelementptr inbounds %struct.DirectedGraph, ptr %72, i32 0, i32 0
  %74 = load ptr, ptr %73, align 8, !tbaa !9
  %75 = load ptr, ptr %4, align 8, !tbaa !5
  call void @hashMapDelete(ptr noundef %74, ptr noundef %75)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  store i32 0, ptr %6, align 4
  br label %76

76:                                               ; preds = %70, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  %77 = load i32, ptr %6, align 4
  switch i32 %77, label %79 [
    i32 0, label %78
    i32 1, label %78
  ]

78:                                               ; preds = %76, %76
  ret void

79:                                               ; preds = %76
  unreachable
}

declare ptr @hashMapGet(ptr noundef, ptr noundef) #4

declare ptr @hashMapToArray(ptr noundef) #4

declare i32 @hashMapGetLength(ptr noundef) #4

declare i32 @arrayListGetIndex(ptr noundef, ptr noundef) #4

declare ptr @arrayListRemoveAtIndexWtFr(ptr noundef, i32 noundef) #4

declare void @hashMapDelete(ptr noundef, ptr noundef) #4

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 = { 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 = { "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, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !6, i64 8}
!14 = !{!"DirGraphNode", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"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"

@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.9 = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
define dso_local void @dirGraphRemoveNode(ptr noundef readonly %0, ptr noundef %1) local_unnamed_addr #3 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %4, label %7

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

7:                                                ; preds = %2
  %8 = icmp eq ptr %1, null
  br i1 %8, label %9, label %12

9:                                                ; preds = %7
  %10 = load ptr, ptr @stderr, align 8, !tbaa !5
  %11 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str, ptr noundef nonnull @.str.9, ptr noundef nonnull @.str.2) #5
  tail call void @exit(i32 noundef -83384987) #6
  unreachable

12:                                               ; preds = %7
  %13 = load ptr, ptr %0, align 8, !tbaa !9
  %14 = tail call ptr @hashMapGet(ptr noundef %13, ptr noundef nonnull %1) #7
  %15 = icmp eq ptr %14, null
  br i1 %15, label %38, label %16

16:                                               ; preds = %12
  %17 = load ptr, ptr %0, align 8, !tbaa !9
  %18 = tail call ptr @hashMapToArray(ptr noundef %17) #7
  %19 = load ptr, ptr %0, align 8, !tbaa !9
  %20 = tail call i32 @hashMapGetLength(ptr noundef %19) #7
  %21 = icmp sgt i32 %20, 0
  br i1 %21, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %33, %16
  tail call void @free(ptr noundef %18) #7
  %22 = load ptr, ptr %0, align 8, !tbaa !9
  tail call void @hashMapDelete(ptr noundef %22, ptr noundef nonnull %1) #7
  br label %38

.lr.ph:                                           ; preds = %16, %33
  %indvars.iv = phi i64 [ %indvars.iv.next, %33 ], [ 0, %16 ]
  %23 = getelementptr inbounds ptr, ptr %18, i64 %indvars.iv
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %24, i64 8
  %26 = load ptr, ptr %25, align 8, !tbaa !11
  %27 = tail call i32 @arrayListGetIndex(ptr noundef %26, ptr noundef nonnull %14) #7
  %.not = icmp eq i32 %27, -1
  br i1 %.not, label %33, label %28

28:                                               ; preds = %.lr.ph
  %29 = load ptr, ptr %23, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %29, i64 8
  %31 = load ptr, ptr %30, align 8, !tbaa !11
  %32 = tail call ptr @arrayListRemoveAtIndexWtFr(ptr noundef %31, i32 noundef %27) #7
  br label %33

33:                                               ; preds = %28, %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %34 = load ptr, ptr %0, align 8, !tbaa !9
  %35 = tail call i32 @hashMapGetLength(ptr noundef %34) #7
  %36 = sext i32 %35 to i64
  %37 = icmp slt i64 %indvars.iv.next, %36
  br i1 %37, label %.lr.ph, label %._crit_edge, !llvm.loop !13

38:                                               ; preds = %12, %._crit_edge
  ret void
}

declare ptr @hashMapGet(ptr noundef, ptr noundef) local_unnamed_addr #4

declare ptr @hashMapToArray(ptr noundef) local_unnamed_addr #4

declare i32 @hashMapGetLength(ptr noundef) local_unnamed_addr #4

declare i32 @arrayListGetIndex(ptr noundef, ptr noundef) local_unnamed_addr #4

declare ptr @arrayListRemoveAtIndexWtFr(ptr noundef, i32 noundef) local_unnamed_addr #4

declare void @hashMapDelete(ptr noundef, ptr noundef) local_unnamed_addr #4

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { 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 #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 = { 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 = { "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 = { cold nounwind }
attributes #6 = { noreturn nounwind }
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 = !{!"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 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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