; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C/Data-Structures/LinkedList (linkedlist)

; 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.node = type { i32, i32, ptr }

@head = external dso_local global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [33 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @printList() #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

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

; Function Attrs: nounwind uwtable
declare dso_local void @insertFirst(i32 noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @deleteFirst() #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @isEmpty() #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @find(i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @delete(i32 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @sort() #0

; Function Attrs: nounwind uwtable
declare dso_local void @reverse(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @main() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  call void @insertFirst(i32 noundef 1, i32 noundef 10)
  call void @insertFirst(i32 noundef 2, i32 noundef 20)
  call void @insertFirst(i32 noundef 3, i32 noundef 30)
  call void @insertFirst(i32 noundef 4, i32 noundef 1)
  call void @insertFirst(i32 noundef 5, i32 noundef 40)
  call void @insertFirst(i32 noundef 6, i32 noundef 56)
  %3 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  call void @printList()
  br label %4

4:                                                ; preds = %7, %0
  %5 = call zeroext i1 @isEmpty()
  %6 = xor i1 %5, true
  br i1 %6, label %7, label %17

7:                                                ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #3
  %8 = call ptr @deleteFirst()
  store ptr %8, ptr %1, align 8, !tbaa !5
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.node, ptr %10, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !9
  %13 = load ptr, ptr %1, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.node, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !12
  %16 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %12, i32 noundef %15)
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  br label %4, !llvm.loop !13

17:                                               ; preds = %4
  %18 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  call void @printList()
  call void @insertFirst(i32 noundef 1, i32 noundef 10)
  call void @insertFirst(i32 noundef 2, i32 noundef 20)
  call void @insertFirst(i32 noundef 3, i32 noundef 30)
  call void @insertFirst(i32 noundef 4, i32 noundef 1)
  call void @insertFirst(i32 noundef 5, i32 noundef 40)
  call void @insertFirst(i32 noundef 6, i32 noundef 56)
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  call void @printList()
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %21 = call ptr @find(i32 noundef 4)
  store ptr %21, ptr %2, align 8, !tbaa !5
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %34

24:                                               ; preds = %17
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.node, ptr %26, i32 0, i32 1
  %28 = load i32, ptr %27, align 4, !tbaa !9
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.node, ptr %29, i32 0, i32 0
  %31 = load i32, ptr %30, align 8, !tbaa !12
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %28, i32 noundef %31)
  %33 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  br label %36

34:                                               ; preds = %17
  %35 = call i32 (ptr, ...) @printf(ptr noundef @.str.9)
  br label %36

36:                                               ; preds = %34, %24
  %37 = call ptr @delete(i32 noundef 4)
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.10)
  call void @printList()
  %39 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  %40 = call ptr @find(i32 noundef 4)
  store ptr %40, ptr %2, align 8, !tbaa !5
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = icmp ne ptr %41, null
  br i1 %42, label %43, label %53

43:                                               ; preds = %36
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  %45 = load ptr, ptr %2, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.node, ptr %45, i32 0, i32 1
  %47 = load i32, ptr %46, align 4, !tbaa !9
  %48 = load ptr, ptr %2, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.node, ptr %48, i32 0, i32 0
  %50 = load i32, ptr %49, align 8, !tbaa !12
  %51 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %47, i32 noundef %50)
  %52 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  br label %55

53:                                               ; preds = %36
  %54 = call i32 (ptr, ...) @printf(ptr noundef @.str.9)
  br label %55

55:                                               ; preds = %53, %43
  %56 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  call void @sort()
  %57 = call i32 (ptr, ...) @printf(ptr noundef @.str.11)
  call void @printList()
  call void @reverse(ptr noundef @head)
  %58 = call i32 (ptr, ...) @printf(ptr noundef @.str.12)
  call void @printList()
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret void
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 4}
!10 = !{!"node", !11, i64 0, !11, i64 4, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

@head = external dso_local global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [33 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @printList() local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
declare dso_local void @insertFirst(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @deleteFirst() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @isEmpty() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @find(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @delete(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @sort() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @reverse(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @main() local_unnamed_addr #0 {
  tail call void @insertFirst(i32 noundef 1, i32 noundef 10)
  tail call void @insertFirst(i32 noundef 2, i32 noundef 20)
  tail call void @insertFirst(i32 noundef 3, i32 noundef 30)
  tail call void @insertFirst(i32 noundef 4, i32 noundef 1)
  tail call void @insertFirst(i32 noundef 5, i32 noundef 40)
  tail call void @insertFirst(i32 noundef 6, i32 noundef 56)
  %1 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  tail call void @printList()
  %2 = tail call zeroext i1 @isEmpty()
  br i1 %2, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %3 = tail call ptr @deleteFirst()
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %5 = getelementptr inbounds i8, ptr %3, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = load i32, ptr %3, align 8, !tbaa !11
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %6, i32 noundef %7)
  %9 = tail call zeroext i1 @isEmpty()
  br i1 %9, label %._crit_edge, label %.lr.ph, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph, %0
  %10 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  tail call void @printList()
  tail call void @insertFirst(i32 noundef 1, i32 noundef 10)
  tail call void @insertFirst(i32 noundef 2, i32 noundef 20)
  tail call void @insertFirst(i32 noundef 3, i32 noundef 30)
  tail call void @insertFirst(i32 noundef 4, i32 noundef 1)
  tail call void @insertFirst(i32 noundef 5, i32 noundef 40)
  tail call void @insertFirst(i32 noundef 6, i32 noundef 56)
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  tail call void @printList()
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  %13 = tail call ptr @find(i32 noundef 4)
  %.not = icmp eq ptr %13, null
  br i1 %.not, label %20, label %14

14:                                               ; preds = %._crit_edge
  %15 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %16 = getelementptr inbounds i8, ptr %13, i64 4
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = load i32, ptr %13, align 8, !tbaa !11
  %19 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %17, i32 noundef %18)
  br label %20

20:                                               ; preds = %._crit_edge, %14
  %.str.9.sink = phi ptr [ @.str.7, %14 ], [ @.str.9, %._crit_edge ]
  %21 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.9.sink)
  %22 = tail call ptr @delete(i32 noundef 4)
  %23 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10)
  tail call void @printList()
  %24 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  %25 = tail call ptr @find(i32 noundef 4)
  %.not9 = icmp eq ptr %25, null
  br i1 %.not9, label %32, label %26

26:                                               ; preds = %20
  %27 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %28 = getelementptr inbounds i8, ptr %25, i64 4
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = load i32, ptr %25, align 8, !tbaa !11
  %31 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %29, i32 noundef %30)
  br label %32

32:                                               ; preds = %20, %26
  %.str.9.sink10 = phi ptr [ @.str.7, %26 ], [ @.str.9, %20 ]
  %33 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.9.sink10)
  %34 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  tail call void @sort()
  %35 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.11)
  tail call void @printList()
  tail call void @reverse(ptr noundef nonnull @head)
  %36 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.12)
  tail call void @printList()
  ret void
}

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 = { 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" }

!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, !7, i64 4}
!6 = !{!"node", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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