; LLVM IR from vmware-archive/vmmfuzzer :: lib (random)

; 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.random = type { %union.pthread_mutex_t, i64, ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }

; 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 ptr @random_free(ptr noundef) #1

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #2

; Function Attrs: nounwind uwtable
define dso_local ptr @random_new() #1 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %4 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 56) #6
  store ptr %4, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %0
  store ptr null, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %33

8:                                                ; preds = %0
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.random, ptr %9, i32 0, i32 0
  %11 = call i32 @pthread_mutex_init(ptr noundef %10, ptr noundef null) #5
  %12 = call ptr @__errno_location() #7
  store i32 %11, ptr %12, align 4, !tbaa !9
  %13 = call ptr @__errno_location() #7
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = icmp ne i32 %14, 0
  br i1 %15, label %16, label %17

16:                                               ; preds = %8
  br label %30

17:                                               ; preds = %8
  %18 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 256) #6
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.random, ptr %19, i32 0, i32 2
  store ptr %18, ptr %20, align 8, !tbaa !11
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.random, ptr %21, i32 0, i32 2
  %23 = load ptr, ptr %22, align 8, !tbaa !11
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %26

25:                                               ; preds = %17
  br label %30

26:                                               ; preds = %17
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = call ptr @random_ref(ptr noundef %27)
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %29, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %33

30:                                               ; preds = %25, %16
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  %32 = call ptr @random_free(ptr noundef %31)
  store ptr null, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %33

33:                                               ; preds = %30, %26, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %34 = load ptr, ptr %1, align 8
  ret ptr %34
}

; Function Attrs: nounwind allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #3

; Function Attrs: nounwind
declare i32 @pthread_mutex_init(ptr noundef, ptr noundef) #4

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

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 willreturn memory(none) "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 allocsize(0,1) "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 #4 = { 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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0,1) }
attributes #7 = { nounwind willreturn memory(none) }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 48}
!12 = !{!"random", !7, i64 0, !13, i64 40, !6, i64 48}
!13 = !{!"long", !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"

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

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @random_new() local_unnamed_addr #0 {
  %1 = tail call noalias dereferenceable_or_null(56) ptr @calloc(i64 noundef 1, i64 noundef 56) #4
  %2 = icmp eq ptr %1, null
  br i1 %2, label %14, label %3

3:                                                ; preds = %0
  %4 = tail call i32 @pthread_mutex_init(ptr noundef nonnull %1, ptr noundef null) #5
  %5 = tail call ptr @__errno_location() #6
  store i32 %4, ptr %5, align 4, !tbaa !5
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %6, label %12

6:                                                ; preds = %3
  %7 = tail call noalias dereferenceable_or_null(256) ptr @calloc(i64 noundef 1, i64 noundef 256) #4
  %8 = getelementptr inbounds i8, ptr %1, i64 48
  store ptr %7, ptr %8, align 8, !tbaa !9
  %9 = icmp eq ptr %7, null
  br i1 %9, label %12, label %10

10:                                               ; preds = %6
  %11 = tail call ptr @random_ref(ptr noundef nonnull %1)
  br label %14

12:                                               ; preds = %6, %3
  %13 = tail call ptr @random_free(ptr noundef nonnull %1)
  br label %14

14:                                               ; preds = %0, %12, %10
  %.0 = phi ptr [ null, %12 ], [ %1, %10 ], [ null, %0 ]
  ret ptr %.0
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare i32 @pthread_mutex_init(ptr noundef, ptr noundef) local_unnamed_addr #3

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

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 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(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 "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 allocsize(0,1) }
attributes #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(none) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !12, i64 48}
!10 = !{!"random", !7, i64 0, !11, i64 40, !12, i64 48}
!11 = !{!"long", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}


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