; LLVM IR from zjhellofss/KuiperInfer :: source/runtime/pnnx/store_zip.ll (ZN4pnnx14StoreZipReader5closeEv)

; 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.pnnx::StoreZipReader" = type { ptr, %"class.std::map" }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, pnnx::StoreZipReader::StoreZipMeta>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, pnnx::StoreZipReader::StoreZipMeta>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, pnnx::StoreZipReader::StoreZipMeta>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, pnnx::StoreZipReader::StoreZipMeta>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4pnnx14StoreZipReader5closeEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #0 align 2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8
  %5 = getelementptr inbounds %"class.pnnx::StoreZipReader", ptr %4, i32 0, i32 0
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %7 = icmp ne ptr %6, null
  br i1 %7, label %9, label %8

8:                                                ; preds = %1
  store i32 0, ptr %2, align 4
  br label %14

9:                                                ; preds = %1
  %10 = getelementptr inbounds %"class.pnnx::StoreZipReader", ptr %4, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = call i32 @fclose(ptr noundef %11)
  %13 = getelementptr inbounds %"class.pnnx::StoreZipReader", ptr %4, i32 0, i32 0
  store ptr null, ptr %13, align 8, !tbaa !9
  store i32 0, ptr %2, align 4
  br label %14

14:                                               ; preds = %9, %8
  %15 = load i32, ptr %2, align 4
  ret i32 %15
}

declare i32 @fclose(ptr noundef) #1

attributes #0 = { 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 #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" }

!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 0}
!10 = !{!"_ZTSN4pnnx14StoreZipReaderE", !6, i64 0, !11, i64 8}
!11 = !{!"_ZTSSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4pnnx14StoreZipReader12StoreZipMetaESt4lessIS5_ESaISt4pairIKS5_S8_EEE", !12, i64 0}
!12 = !{!"_ZTSSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_N4pnnx14StoreZipReader12StoreZipMetaEESt10_Select1stISB_ESt4lessIS5_ESaISB_EE", !13, i64 0}
!13 = !{!"_ZTSNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_N4pnnx14StoreZipReader12StoreZipMetaEESt10_Select1stISB_ESt4lessIS5_ESaISB_EE13_Rb_tree_implISF_Lb1EEE", !14, i64 0, !16, i64 8}
!14 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE", !15, i64 0}
!15 = !{!"_ZTSSt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE"}
!16 = !{!"_ZTSSt15_Rb_tree_header", !17, i64 0, !19, i64 32}
!17 = !{!"_ZTSSt18_Rb_tree_node_base", !18, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!18 = !{!"_ZTSSt14_Rb_tree_color", !7, i64 0}
!19 = !{!"long", !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"

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local noundef i32 @_ZN4pnnx14StoreZipReader5closeEv(ptr nocapture noundef nonnull align 8 dereferenceable(56) %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %5, label %3

3:                                                ; preds = %1
  %4 = tail call i32 @fclose(ptr noundef nonnull %2)
  store ptr null, ptr %0, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %1, %3
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree 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 = { nofree 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" }

!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 = !{!"_ZTSN4pnnx14StoreZipReaderE", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4pnnx14StoreZipReader12StoreZipMetaESt4lessIS5_ESaISt4pairIKS5_S8_EEE", !11, i64 0}
!11 = !{!"_ZTSSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_N4pnnx14StoreZipReader12StoreZipMetaEESt10_Select1stISB_ESt4lessIS5_ESaISB_EE", !12, i64 0}
!12 = !{!"_ZTSNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_N4pnnx14StoreZipReader12StoreZipMetaEESt10_Select1stISB_ESt4lessIS5_ESaISB_EE13_Rb_tree_implISF_Lb1EEE", !13, i64 0, !15, i64 8}
!13 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE", !14, i64 0}
!14 = !{!"_ZTSSt4lessINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE"}
!15 = !{!"_ZTSSt15_Rb_tree_header", !16, i64 0, !18, i64 32}
!16 = !{!"_ZTSSt18_Rb_tree_node_base", !17, i64 0, !7, i64 8, !7, i64 16, !7, i64 24}
!17 = !{!"_ZTSSt14_Rb_tree_color", !8, i64 0}
!18 = !{!"long", !8, i64 0}


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