; LLVM IR from ordo-one/package-benchmark :: Sources/SwiftRuntimeHooks (shims)

; 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.hook_data_s = type { ptr, ptr, ptr, ptr, ptr }

@_swift_release_hook_data = external hidden global %struct.hook_data_s, align 8
@_swift_release = external global ptr, align 8
@_swift_release_n = external 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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; 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) #2

; 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 void @swift_runtime_set_release_hook(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %struct.hook_data_s, align 8
  %6 = alloca %struct.hook_data_s, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %12

9:                                                ; preds = %2
  %10 = load ptr, ptr @_swift_release_hook_data, align 8, !tbaa !9
  store ptr %10, ptr @_swift_release, align 8, !tbaa !5
  %11 = load ptr, ptr getelementptr inbounds (%struct.hook_data_s, ptr @_swift_release_hook_data, i32 0, i32 2), align 8, !tbaa !11
  store ptr %11, ptr @_swift_release_n, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %5) #4
  call void @llvm.memset.p0.i64(ptr align 8 %5, i8 0, i64 40, i1 false)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 @_swift_release_hook_data, ptr align 8 %5, i64 40, i1 false), !tbaa.struct !12
  call void @llvm.lifetime.end.p0(i64 40, ptr %5) #4
  br label %22

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 40, ptr %6) #4
  %13 = getelementptr inbounds %struct.hook_data_s, ptr %6, i32 0, i32 0
  %14 = load ptr, ptr @_swift_release, align 8, !tbaa !5
  store ptr %14, ptr %13, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.hook_data_s, ptr %6, i32 0, i32 1
  store ptr null, ptr %15, align 8, !tbaa !13
  %16 = getelementptr inbounds %struct.hook_data_s, ptr %6, i32 0, i32 2
  %17 = load ptr, ptr @_swift_release_n, align 8, !tbaa !5
  store ptr %17, ptr %16, align 8, !tbaa !11
  %18 = getelementptr inbounds %struct.hook_data_s, ptr %6, i32 0, i32 3
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %19, ptr %18, align 8, !tbaa !14
  %20 = getelementptr inbounds %struct.hook_data_s, ptr %6, i32 0, i32 4
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %21, ptr %20, align 8, !tbaa !15
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 @_swift_release_hook_data, ptr align 8 %6, i64 40, i1 false), !tbaa.struct !12
  store ptr @_swift_release_hook, ptr @_swift_release, align 8, !tbaa !5
  store ptr @_swift_release_n_hook, ptr @_swift_release_n, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 40, ptr %6) #4
  br label %22

22:                                               ; preds = %12, %9
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @_swift_release_hook(ptr noundef) #3

; Function Attrs: nounwind uwtable
declare hidden ptr @_swift_release_n_hook(ptr noundef, i32 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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 0}
!10 = !{!"hook_data_s", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!11 = !{!10, !6, i64 16}
!12 = !{i64 0, i64 8, !5, i64 8, i64 8, !5, i64 16, i64 8, !5, i64 24, i64 8, !5, i64 32, i64 8, !5}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !6, i64 24}
!15 = !{!10, !6, i64 32}


; 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"

%struct.hook_data_s = type { ptr, ptr, ptr, ptr, ptr }

@_swift_release_hook_data = external hidden local_unnamed_addr global %struct.hook_data_s, align 8
@_swift_release = external local_unnamed_addr global ptr, align 8
@_swift_release_n = external local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @swift_runtime_set_release_hook(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %4, label %7

4:                                                ; preds = %2
  %5 = load ptr, ptr @_swift_release_hook_data, align 8, !tbaa !5
  %6 = load ptr, ptr getelementptr inbounds (i8, ptr @_swift_release_hook_data, i64 16), align 8, !tbaa !10
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) @_swift_release_hook_data, i8 0, i64 40, i1 false)
  br label %10

7:                                                ; preds = %2
  %8 = load ptr, ptr @_swift_release, align 8, !tbaa !11
  %9 = load ptr, ptr @_swift_release_n, align 8, !tbaa !11
  store ptr %8, ptr @_swift_release_hook_data, align 8, !tbaa !11
  store ptr null, ptr getelementptr inbounds (i8, ptr @_swift_release_hook_data, i64 8), align 8, !tbaa !11
  store ptr %9, ptr getelementptr inbounds (i8, ptr @_swift_release_hook_data, i64 16), align 8, !tbaa !11
  store ptr %0, ptr getelementptr inbounds (i8, ptr @_swift_release_hook_data, i64 24), align 8, !tbaa !11
  store ptr %1, ptr getelementptr inbounds (i8, ptr @_swift_release_hook_data, i64 32), align 8, !tbaa !11
  br label %10

10:                                               ; preds = %7, %4
  %_swift_release_hook.sink = phi ptr [ %5, %4 ], [ @_swift_release_hook, %7 ]
  %_swift_release_n_hook.sink = phi ptr [ %6, %4 ], [ @_swift_release_n_hook, %7 ]
  store ptr %_swift_release_hook.sink, ptr @_swift_release, align 8
  store ptr %_swift_release_n_hook.sink, ptr @_swift_release_n, align 8
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @_swift_release_hook(ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden ptr @_swift_release_n_hook(ptr noundef, i32 noundef) #2

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) 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 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" }

!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, !7, i64 0}
!6 = !{!"hook_data_s", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 16}
!11 = !{!7, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass