; LLVM IR from intel/intel-ipsec-mb :: test/imb-provider (prov_sw_queue)

; 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._mb_queue_update = type { %union.pthread_mutex_t, ptr, ptr, i32, i32 }
%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 }

@.str = external hidden unnamed_addr constant [88 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @mb_queue_update_create() #0 {
  %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) #4
  %4 = call ptr @CRYPTO_zalloc(i64 noundef 64, ptr noundef @.str, i32 noundef 43)
  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 %27

8:                                                ; preds = %0
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct._mb_queue_update, ptr %9, i32 0, i32 0
  %11 = call i32 @pthread_mutex_init(ptr noundef %10, ptr noundef null) #4
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct._mb_queue_update, ptr %12, i32 0, i32 0
  %14 = call i32 @pthread_mutex_lock(ptr noundef %13) #4
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._mb_queue_update, ptr %15, i32 0, i32 1
  store ptr null, ptr %16, align 8, !tbaa !9
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct._mb_queue_update, ptr %17, i32 0, i32 2
  store ptr null, ptr %18, align 8, !tbaa !12
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct._mb_queue_update, ptr %19, i32 0, i32 4
  store i32 0, ptr %20, align 4, !tbaa !13
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct._mb_queue_update, ptr %21, i32 0, i32 3
  store i32 0, ptr %22, align 8, !tbaa !14
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct._mb_queue_update, ptr %23, i32 0, i32 0
  %25 = call i32 @pthread_mutex_unlock(ptr noundef %24) #4
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %26, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %27

27:                                               ; preds = %8, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %28 = load ptr, ptr %1, align 8
  ret ptr %28
}

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

declare ptr @CRYPTO_zalloc(i64 noundef, ptr noundef, i32 noundef) #2

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

; Function Attrs: nounwind
declare i32 @pthread_mutex_lock(ptr noundef) #3

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) #3

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

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, !6, i64 40}
!10 = !{!"_mb_queue_update", !7, i64 0, !6, i64 40, !6, i64 48, !11, i64 56, !11, i64 60}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 48}
!13 = !{!10, !11, i64 60}
!14 = !{!10, !11, i64 56}


; 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 [88 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @mb_queue_update_create() local_unnamed_addr #0 {
  %1 = tail call ptr @CRYPTO_zalloc(i64 noundef 64, ptr noundef nonnull @.str, i32 noundef 43) #4
  %2 = icmp eq ptr %1, null
  br i1 %2, label %8, label %3

3:                                                ; preds = %0
  %4 = tail call i32 @pthread_mutex_init(ptr noundef nonnull %1, ptr noundef null) #4
  %5 = tail call i32 @pthread_mutex_lock(ptr noundef nonnull %1) #4
  %6 = getelementptr inbounds i8, ptr %1, i64 40
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %6, i8 0, i64 24, i1 false)
  %7 = tail call i32 @pthread_mutex_unlock(ptr noundef nonnull %1) #4
  br label %8

8:                                                ; preds = %0, %3
  ret ptr %1
}

declare ptr @CRYPTO_zalloc(i64 noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare i32 @pthread_mutex_init(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare i32 @pthread_mutex_lock(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) local_unnamed_addr #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

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 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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)"}


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