; 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: nounwind
declare i32 @pthread_mutex_lock(ptr noundef) #0

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @random_get_state(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = icmp eq ptr %8, null
  br i1 %9, label %13, label %10

10:                                               ; preds = %3
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %15

13:                                               ; preds = %10, %3
  %14 = call ptr @__errno_location() #4
  store i32 22, ptr %14, align 4, !tbaa !11
  store ptr null, ptr %4, align 8
  br label %46

15:                                               ; preds = %10
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.random, ptr %16, i32 0, i32 0
  %18 = call i32 @pthread_mutex_lock(ptr noundef %17) #5
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.random, ptr %20, i32 0, i32 2
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load i64, ptr %7, align 8, !tbaa !9
  %24 = icmp ugt i64 %23, 6
  br i1 %24, label %25, label %27

25:                                               ; preds = %15
  %26 = load i64, ptr %7, align 8, !tbaa !9
  br label %28

27:                                               ; preds = %15
  br label %28

28:                                               ; preds = %27, %25
  %29 = phi i64 [ %26, %25 ], [ 6, %27 ]
  %30 = icmp ult i64 %29, 256
  br i1 %30, label %31, label %39

31:                                               ; preds = %28
  %32 = load i64, ptr %7, align 8, !tbaa !9
  %33 = icmp ugt i64 %32, 6
  br i1 %33, label %34, label %36

34:                                               ; preds = %31
  %35 = load i64, ptr %7, align 8, !tbaa !9
  br label %37

36:                                               ; preds = %31
  br label %37

37:                                               ; preds = %36, %34
  %38 = phi i64 [ %35, %34 ], [ 6, %36 ]
  br label %40

39:                                               ; preds = %28
  br label %40

40:                                               ; preds = %39, %37
  %41 = phi i64 [ %38, %37 ], [ 256, %39 ]
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %19, ptr align 1 %22, i64 %41, i1 false)
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.random, ptr %42, i32 0, i32 0
  %44 = call i32 @pthread_mutex_unlock(ptr noundef %43) #5
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %45, ptr %4, align 8
  br label %46

46:                                               ; preds = %40, %13
  %47 = load ptr, ptr %4, align 8
  ret ptr %47
}

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #0 = { 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 #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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind willreturn memory(none) }
attributes #5 = { 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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !6, i64 48}
!14 = !{!"random", !7, i64 0, !10, i64 40, !6, i64 48}


; 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
declare i32 @pthread_mutex_lock(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @random_get_state(ptr noundef %0, ptr noundef writeonly %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = icmp eq ptr %0, null
  %5 = icmp eq ptr %1, null
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %6, label %8

6:                                                ; preds = %3
  %7 = tail call ptr @__errno_location() #5
  store i32 22, ptr %7, align 4, !tbaa !5
  br label %15

8:                                                ; preds = %3
  %9 = tail call i32 @pthread_mutex_lock(ptr noundef nonnull %0) #6
  %10 = getelementptr inbounds i8, ptr %0, i64 48
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = tail call i64 @llvm.umax.i64(i64 %2, i64 6)
  %13 = tail call i64 @llvm.umin.i64(i64 %12, i64 256)
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(1) %1, ptr noundef nonnull align 1 dereferenceable(1) %11, i64 %13, i1 false)
  %14 = tail call i32 @pthread_mutex_unlock(ptr noundef nonnull %0) #6
  br label %15

15:                                               ; preds = %8, %6
  %.0 = phi ptr [ null, %6 ], [ %0, %8 ]
  ret ptr %.0
}

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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umax.i64(i64, i64) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umin.i64(i64, i64) #4

attributes #0 = { 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 #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 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nounwind willreturn memory(none) }
attributes #6 = { 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 = !{!"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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass