; LLVM IR from facebook/redex :: libresource/ResourceTypes.ll (ZN7android13ResStringPool10setToEmptyEv)

; 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"

%"class.android::ResStringPool" = type <{ ptr, i32, [4 x i8], ptr, ptr, i64, %"class.std::mutex", ptr, ptr, ptr, ptr, i32, [4 x i8], ptr, i32, [4 x i8] }>
%"class.std::mutex" = type { %"class.std::__mutex_base" }
%"class.std::__mutex_base" = type { %union.pthread_mutex_t }
%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: mustprogress nounwind uwtable
declare dso_local void @_ZN7android13ResStringPool6uninitEv(ptr noundef nonnull align 8 dereferenceable(132)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7android13ResStringPool10setToEmptyEv(ptr noundef nonnull align 8 dereferenceable(132) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @_ZN7android13ResStringPool6uninitEv(ptr noundef nonnull align 8 dereferenceable(132) %4)
  %5 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 28) #4
  %6 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 3
  store ptr %5, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %7 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 3
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  store ptr %8, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 5
  store i64 0, ptr %9, align 8, !tbaa !15
  %10 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 7
  store ptr null, ptr %10, align 8, !tbaa !16
  %11 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 9
  store ptr null, ptr %11, align 8, !tbaa !17
  %12 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 11
  store i32 0, ptr %12, align 8, !tbaa !18
  %13 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 8
  store ptr null, ptr %13, align 8, !tbaa !19
  %14 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 13
  store ptr null, ptr %14, align 8, !tbaa !20
  %15 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 14
  store i32 0, ptr %15, align 8, !tbaa !21
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %"class.android::ResStringPool", ptr %4, i32 0, i32 4
  store ptr %16, ptr %17, align 8, !tbaa !22
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void
}

; Function Attrs: nounwind allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

attributes #0 = { mustprogress 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 = { mustprogress 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 allocsize(0,1) "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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind allocsize(0,1) }
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++ TBAA"}
!9 = !{!10, !6, i64 16}
!10 = !{!"_ZTSN7android13ResStringPoolE", !11, i64 8, !6, i64 16, !6, i64 24, !12, i64 32, !13, i64 40, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !11, i64 112, !6, i64 120, !11, i64 128}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!"_ZTSSt5mutex", !14, i64 0}
!14 = !{!"_ZTSSt12__mutex_base", !7, i64 0}
!15 = !{!10, !12, i64 32}
!16 = !{!10, !6, i64 80}
!17 = !{!10, !6, i64 96}
!18 = !{!10, !11, i64 112}
!19 = !{!10, !6, i64 88}
!20 = !{!10, !6, i64 120}
!21 = !{!10, !11, i64 128}
!22 = !{!10, !6, i64 24}


; 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 nounwind uwtable
declare dso_local void @_ZN7android13ResStringPool6uninitEv(ptr noundef nonnull align 8 dereferenceable(132)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7android13ResStringPool10setToEmptyEv(ptr noundef nonnull align 8 dereferenceable(132) %0) local_unnamed_addr #0 align 2 {
  tail call void @_ZN7android13ResStringPool6uninitEv(ptr noundef nonnull align 8 dereferenceable(132) %0)
  %2 = tail call noalias dereferenceable_or_null(28) ptr @calloc(i64 noundef 1, i64 noundef 28) #3
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %2, ptr %3, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  store i64 0, ptr %4, align 8, !tbaa !14
  %5 = getelementptr inbounds i8, ptr %0, i64 80
  %6 = getelementptr inbounds i8, ptr %0, i64 112
  store i32 0, ptr %6, align 8, !tbaa !15
  %7 = getelementptr inbounds i8, ptr %0, i64 120
  store ptr null, ptr %7, align 8, !tbaa !16
  %8 = getelementptr inbounds i8, ptr %0, i64 128
  store i32 0, ptr %8, align 8, !tbaa !17
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %5, i8 0, i64 24, i1 false)
  store ptr %2, ptr %9, align 8, !tbaa !18
  ret void
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { mustprogress 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 = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nounwind allocsize(0,1) }

!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, !10, i64 16}
!6 = !{!"_ZTSN7android13ResStringPoolE", !7, i64 8, !10, i64 16, !10, i64 24, !11, i64 32, !12, i64 40, !10, i64 80, !10, i64 88, !10, i64 96, !10, i64 104, !7, i64 112, !10, i64 120, !7, i64 128}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!"_ZTSSt5mutex", !13, i64 0}
!13 = !{!"_ZTSSt12__mutex_base", !8, i64 0}
!14 = !{!6, !11, i64 32}
!15 = !{!6, !7, i64 112}
!16 = !{!6, !10, i64 120}
!17 = !{!6, !7, i64 128}
!18 = !{!6, !10, i64 24}


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