; LLVM IR from openanolis/openssl :: ssl/quic (quic_sf_list)

; 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.sframe_list_st = type { ptr, ptr, i32, i64, i64, i32, i32 }

; 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 @ossl_sframe_list_peek(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @ossl_sframe_list_lock_head(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  store ptr null, ptr %11, align 8, !tbaa !5
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.sframe_list_st, ptr %13, i32 0, i32 5
  %15 = load i32, ptr %14, align 8, !tbaa !9
  %16 = icmp ne i32 %15, 0
  br i1 %16, label %17, label %18

17:                                               ; preds = %4
  store i32 0, ptr %5, align 4
  store i32 1, ptr %12, align 4
  br label %31

18:                                               ; preds = %4
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = call i32 @ossl_sframe_list_peek(ptr noundef %19, ptr noundef %11, ptr noundef %20, ptr noundef %21, ptr noundef %22)
  store i32 %23, ptr %10, align 4, !tbaa !13
  %24 = load i32, ptr %10, align 4, !tbaa !13
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %29

26:                                               ; preds = %18
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.sframe_list_st, ptr %27, i32 0, i32 5
  store i32 1, ptr %28, align 8, !tbaa !9
  br label %29

29:                                               ; preds = %26, %18
  %30 = load i32, ptr %10, align 4, !tbaa !13
  store i32 %30, ptr %5, align 4
  store i32 1, ptr %12, align 4
  br label %31

31:                                               ; preds = %29, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  %32 = load i32, ptr %5, align 4
  ret i32 %32
}

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 }

!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 40}
!10 = !{!"sframe_list_st", !6, i64 0, !6, i64 8, !11, i64 16, !12, i64 24, !12, i64 32, !11, i64 40, !11, i64 44}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!11, !11, 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: 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 @ossl_sframe_list_peek(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @ossl_sframe_list_lock_head(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #1 {
  %5 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #2
  store ptr null, ptr %5, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  %7 = load i32, ptr %6, align 8, !tbaa !9
  %.not = icmp eq i32 %7, 0
  br i1 %.not, label %8, label %11

8:                                                ; preds = %4
  %9 = call i32 @ossl_sframe_list_peek(ptr noundef nonnull %0, ptr noundef nonnull %5, ptr noundef %1, ptr noundef %2, ptr noundef %3)
  %.not8 = icmp eq i32 %9, 0
  br i1 %.not8, label %11, label %10

10:                                               ; preds = %8
  store i32 1, ptr %6, align 8, !tbaa !9
  br label %11

11:                                               ; preds = %8, %10, %4
  %.0 = phi i32 [ 0, %4 ], [ %9, %10 ], [ 0, %8 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #2
  ret i32 %.0
}

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 = { 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 40}
!10 = !{!"sframe_list_st", !6, i64 0, !6, i64 8, !11, i64 16, !12, i64 24, !12, i64 32, !11, i64 40, !11, i64 44}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}


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