; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: Unit Test/Tests/DataStructuresTests/QueuesTest/LinkedListQueueTest (testLinkedListQueueDequeue)

; 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 }

@.str = external hidden unnamed_addr constant [167 x i8], align 1
@ERROR_TEST = external dso_local global ptr, align 8

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

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

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

declare ptr @linkedListQueueInitialization(ptr noundef) #2

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 noundef) #2

; Function Attrs: nounwind
declare void @free(ptr noundef) #3

declare void @destroyLLQueue(ptr noundef) #2

declare void @lLQueueEnqueue(ptr noundef, ptr noundef) #2

declare i32 @lLQueueGetLength(ptr noundef) #2

declare ptr @lLQueueDequeue(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @testLinkedListQueueDequeue(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %7 = call ptr @linkedListQueueInitialization(ptr noundef @free)
  store ptr %7, ptr %3, align 8, !tbaa !5
  %8 = call ptr @lLQueueDequeue(ptr noundef null)
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.ErrorTestStruct, ptr %10, i32 0, i32 0
  %12 = load i32, ptr %11, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %9, ptr noundef @.str, i32 noundef 135, ptr noundef null, i32 noundef -83386157, i32 noundef %12)
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = call ptr @lLQueueDequeue(ptr noundef %13)
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.ErrorTestStruct, ptr %16, i32 0, i32 0
  %18 = load i32, ptr %17, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %15, ptr noundef @.str, i32 noundef 138, ptr noundef null, i32 noundef -833816740, i32 noundef %18)
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = call ptr @generateIntPointerLLQT(i32 noundef 1)
  call void @lLQueueEnqueue(ptr noundef %19, ptr noundef %20)
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = call ptr @generateIntPointerLLQT(i32 noundef 2)
  call void @lLQueueEnqueue(ptr noundef %21, ptr noundef %22)
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = call ptr @generateIntPointerLLQT(i32 noundef 3)
  call void @lLQueueEnqueue(ptr noundef %23, ptr noundef %24)
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = call ptr @generateIntPointerLLQT(i32 noundef 4)
  call void @lLQueueEnqueue(ptr noundef %25, ptr noundef %26)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = call i32 @lLQueueGetLength(ptr noundef %27)
  %29 = sub nsw i32 %28, 1
  store i32 %29, ptr %4, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 1, ptr %5, align 4, !tbaa !12
  br label %30

30:                                               ; preds = %42, %1
  %31 = load i32, ptr %4, align 4, !tbaa !12
  %32 = icmp sge i32 %31, 0
  br i1 %32, label %34, label %33

33:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %47

34:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %35 = load ptr, ptr %3, align 8, !tbaa !5
  %36 = call ptr @lLQueueDequeue(ptr noundef %35)
  store ptr %36, ptr %6, align 8, !tbaa !5
  %37 = load ptr, ptr %2, align 8, !tbaa !5
  %38 = load i32, ptr %5, align 4, !tbaa !12
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  %40 = load i32, ptr %39, align 4, !tbaa !12
  call void @CuAssertIntEquals_LineMsg(ptr noundef %37, ptr noundef @.str, i32 noundef 148, ptr noundef null, i32 noundef %38, i32 noundef %40)
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  call void @free(ptr noundef %41) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %42

42:                                               ; preds = %34
  %43 = load i32, ptr %4, align 4, !tbaa !12
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %4, align 4, !tbaa !12
  %45 = load i32, ptr %5, align 4, !tbaa !12
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %5, align 4, !tbaa !12
  br label %30, !llvm.loop !13

47:                                               ; preds = %33
  %48 = load ptr, ptr %3, align 8, !tbaa !5
  call void @destroyLLQueue(ptr noundef %48)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  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 "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 = 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"

@.str = external hidden unnamed_addr constant [167 x i8], align 1
@ERROR_TEST = external dso_local local_unnamed_addr global ptr, align 8

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

declare ptr @linkedListQueueInitialization(ptr noundef) local_unnamed_addr #1

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 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 void @destroyLLQueue(ptr noundef) local_unnamed_addr #1

declare void @lLQueueEnqueue(ptr noundef, ptr noundef) local_unnamed_addr #1

declare i32 @lLQueueGetLength(ptr noundef) local_unnamed_addr #1

declare ptr @lLQueueDequeue(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @testLinkedListQueueDequeue(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call ptr @linkedListQueueInitialization(ptr noundef nonnull @free) #3
  %3 = tail call ptr @lLQueueDequeue(ptr noundef null) #3
  %4 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %5 = load i32, ptr %4, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 135, ptr noundef null, i32 noundef -83386157, i32 noundef %5) #3
  %6 = tail call ptr @lLQueueDequeue(ptr noundef %2) #3
  %7 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %8 = load i32, ptr %7, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 138, ptr noundef null, i32 noundef -833816740, i32 noundef %8) #3
  %9 = tail call ptr @generateIntPointerLLQT(i32 noundef 1)
  tail call void @lLQueueEnqueue(ptr noundef %2, ptr noundef %9) #3
  %10 = tail call ptr @generateIntPointerLLQT(i32 noundef 2)
  tail call void @lLQueueEnqueue(ptr noundef %2, ptr noundef %10) #3
  %11 = tail call ptr @generateIntPointerLLQT(i32 noundef 3)
  tail call void @lLQueueEnqueue(ptr noundef %2, ptr noundef %11) #3
  %12 = tail call ptr @generateIntPointerLLQT(i32 noundef 4)
  tail call void @lLQueueEnqueue(ptr noundef %2, ptr noundef %12) #3
  %13 = tail call i32 @lLQueueGetLength(ptr noundef %2) #3
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  tail call void @destroyLLQueue(ptr noundef %2) #3
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.01617 = phi i32 [ %17, %.lr.ph ], [ 1, %1 ]
  %15 = tail call ptr @lLQueueDequeue(ptr noundef %2) #3
  %16 = load i32, ptr %15, align 4, !tbaa !12
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 148, ptr noundef null, i32 noundef %.01617, i32 noundef %16) #3
  tail call void @free(ptr noundef %15) #3
  %17 = add nuw i32 %.01617, 1
  %exitcond.not = icmp eq i32 %.01617, %13
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13
}

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 = { "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 = { 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 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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