; LLVM IR from NVIDIA/DALI :: qa/test_wrapper_post.ll_ (deregister_frame_info_bases)

; 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"

@unsafeness_depth = external hidden thread_local global i32, align 4
@orig_deregister_frame_info_bases = external dso_local global ptr, align 8

; 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 speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

; 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
define dso_local ptr @__deregister_frame_info_bases(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr @orig_deregister_frame_info_bases, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  call void @unwind_init()
  br label %7

7:                                                ; preds = %6, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @unsafeness_depth)
  %9 = load i32, ptr %8, align 4, !tbaa !9
  %10 = add nsw i32 %9, 1
  store i32 %10, ptr %8, align 4, !tbaa !9
  %11 = load ptr, ptr @orig_deregister_frame_info_bases, align 8, !tbaa !5
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = call ptr %11(ptr noundef %12)
  store ptr %13, ptr %3, align 8, !tbaa !5
  %14 = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @unsafeness_depth)
  %15 = load i32, ptr %14, align 4, !tbaa !9
  %16 = add nsw i32 %15, -1
  store i32 %16, ptr %14, align 4, !tbaa !9
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %17
}

; Function Attrs: nounwind uwtable
declare hidden void @unwind_init() #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #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, !10, i64 0}
!10 = !{!"int", !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"

@unsafeness_depth = external hidden thread_local local_unnamed_addr global i32, align 4
@orig_deregister_frame_info_bases = external dso_local local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @__deregister_frame_info_bases(ptr noundef %0) local_unnamed_addr #1 {
  %2 = load ptr, ptr @orig_deregister_frame_info_bases, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %1
  tail call void @unwind_init()
  %.pre = load ptr, ptr @orig_deregister_frame_info_bases, align 8, !tbaa !5
  br label %4

4:                                                ; preds = %3, %1
  %5 = phi ptr [ %.pre, %3 ], [ %2, %1 ]
  %6 = tail call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @unsafeness_depth)
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = add nsw i32 %7, 1
  store i32 %8, ptr %6, align 4, !tbaa !9
  %9 = tail call ptr %5(ptr noundef %0) #2
  %10 = load i32, ptr %6, align 4, !tbaa !9
  %11 = add nsw i32 %10, -1
  store i32 %11, ptr %6, align 4, !tbaa !9
  ret ptr %9
}

; Function Attrs: nounwind uwtable
declare hidden void @unwind_init() local_unnamed_addr #1

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !10, i64 0}
!10 = !{!"int", !7, i64 0}


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