; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: Unit Test/Tests/DataStructuresTests/LinkedListsTest/DoublyLinkedListTest (testDoublyLinkedListGetItem)

; 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.ErrorTestStruct = type { i32 }
%struct.DoublyLinkedList = type { ptr, ptr, i32, ptr, ptr }

@.str = external hidden unnamed_addr constant [174 x i8], align 1
@ERROR_TEST = external dso_local global ptr, align 8

; 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 uwtable
declare dso_local i32 @compareIntPointersDLLT(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @doublyLinkedListAddFrom1To10Values(ptr noundef) #1

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

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

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 noundef) #3

declare void @destroyDoublyLinkedList(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local void @testDoublyLinkedListGetItem(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %6 = call ptr @doublyLinkedListInitialization(ptr noundef @free, ptr noundef @compareIntPointersDLLT)
  store ptr %6, ptr %3, align 8, !tbaa !5
  %7 = call ptr @doublyLinkedListGetItem(ptr noundef null, ptr noundef null)
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.ErrorTestStruct, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %8, ptr noundef @.str, i32 noundef 440, ptr noundef null, i32 noundef -83386157, i32 noundef %11)
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = call ptr @doublyLinkedListGetItem(ptr noundef %12, ptr noundef null)
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.ErrorTestStruct, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %14, ptr noundef @.str, i32 noundef 443, ptr noundef null, i32 noundef -83384987, i32 noundef %17)
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  call void @doublyLinkedListAddFrom1To10Values(ptr noundef %18)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !12
  br label %19

19:                                               ; preds = %34, %1
  %20 = load i32, ptr %5, align 4, !tbaa !12
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.DoublyLinkedList, ptr %21, i32 0, i32 2
  %23 = load i32, ptr %22, align 8, !tbaa !13
  %24 = icmp slt i32 %20, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %37

26:                                               ; preds = %19
  %27 = load i32, ptr %5, align 4, !tbaa !12
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %4, align 4, !tbaa !12
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = load i32, ptr %4, align 4, !tbaa !12
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = call ptr @doublyLinkedListGetItem(ptr noundef %31, ptr noundef %4)
  %33 = load i32, ptr %32, align 4, !tbaa !12
  call void @CuAssertIntEquals_LineMsg(ptr noundef %29, ptr noundef @.str, i32 noundef 451, ptr noundef null, i32 noundef %30, i32 noundef %33)
  br label %34

34:                                               ; preds = %26
  %35 = load i32, ptr %5, align 4, !tbaa !12
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %5, align 4, !tbaa !12
  br label %19, !llvm.loop !15

37:                                               ; preds = %25
  store i32 11, ptr %4, align 4, !tbaa !12
  %38 = load ptr, ptr %2, align 8, !tbaa !5
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = call ptr @doublyLinkedListGetItem(ptr noundef %39, ptr noundef %4)
  call void @CuAssertPtrEquals_LineMsg(ptr noundef %38, ptr noundef @.str, i32 noundef 455, ptr noundef null, ptr noundef null, ptr noundef %40)
  %41 = load ptr, ptr %3, align 8, !tbaa !5
  call void @destroyDoublyLinkedList(ptr noundef %41)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void
}

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

declare void @CuAssertPtrEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 }

!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 0}
!10 = !{!"ErrorTestStruct", !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!14, !11, i64 16}
!14 = !{!"DoublyLinkedList", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24, !6, i64 32}
!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"

@.str = external hidden unnamed_addr constant [174 x i8], align 1
@ERROR_TEST = external dso_local local_unnamed_addr global ptr, align 8

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

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @compareIntPointersDLLT(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @doublyLinkedListAddFrom1To10Values(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) #2

declare ptr @doublyLinkedListInitialization(ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

declare void @destroyDoublyLinkedList(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local void @testDoublyLinkedListGetItem(ptr noundef %0) local_unnamed_addr #1 {
  %2 = alloca i32, align 4
  %3 = tail call ptr @doublyLinkedListInitialization(ptr noundef nonnull @free, ptr noundef nonnull @compareIntPointersDLLT) #4
  %4 = tail call ptr @doublyLinkedListGetItem(ptr noundef null, ptr noundef null) #4
  %5 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %6 = load i32, ptr %5, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 440, ptr noundef null, i32 noundef -83386157, i32 noundef %6) #4
  %7 = tail call ptr @doublyLinkedListGetItem(ptr noundef %3, ptr noundef null) #4
  %8 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %9 = load i32, ptr %8, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 443, ptr noundef null, i32 noundef -83384987, i32 noundef %9) #4
  tail call void @doublyLinkedListAddFrom1To10Values(ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %10 = getelementptr inbounds i8, ptr %3, i64 16
  %11 = load i32, ptr %10, align 8, !tbaa !12
  %12 = icmp sgt i32 %11, 0
  br i1 %12, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  store i32 11, ptr %2, align 4, !tbaa !14
  %13 = call ptr @doublyLinkedListGetItem(ptr noundef nonnull %3, ptr noundef nonnull %2) #4
  call void @CuAssertPtrEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 455, ptr noundef null, ptr noundef null, ptr noundef %13) #4
  call void @destroyDoublyLinkedList(ptr noundef nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.012 = phi i32 [ %14, %.lr.ph ], [ 0, %1 ]
  %14 = add nuw nsw i32 %.012, 1
  store i32 %14, ptr %2, align 4, !tbaa !14
  %15 = call ptr @doublyLinkedListGetItem(ptr noundef nonnull %3, ptr noundef nonnull %2) #4
  %16 = load i32, ptr %15, align 4, !tbaa !14
  call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 451, ptr noundef null, i32 noundef %14, i32 noundef %16) #4
  %17 = load i32, ptr %10, align 8, !tbaa !12
  %18 = icmp slt i32 %14, %17
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !15
}

declare ptr @doublyLinkedListGetItem(ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @CuAssertPtrEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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 }

!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 0}
!10 = !{!"ErrorTestStruct", !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !11, i64 16}
!13 = !{!"DoublyLinkedList", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24, !6, i64 32}
!14 = !{!11, !11, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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