; LLVM IR from yinqiwen/ardb :: src/common/util (config_helper)

; 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.std::_Rb_tree_iterator.23" = type { ptr }
%"struct.std::pair.24" = type { %"class.std::__cxx11::basic_string", %"class.std::map" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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>, std::vector<std::vector<std::__cxx11::basic_string<char>>>>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, std::vector<std::vector<std::__cxx11::basic_string<char>>>>>, 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>, std::vector<std::vector<std::__cxx11::basic_string<char>>>>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, std::vector<std::vector<std::__cxx11::basic_string<char>>>>>, 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: 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: mustprogress uwtable
declare dso_local void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEE(ptr noundef nonnull align 8 dereferenceable(48)) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES0_IS6_St6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEESD_SaISE_ISF_SI_EEE(ptr noundef nonnull align 8 dereferenceable(48) %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator.23", align 8
  %4 = alloca %"struct.std::_Rb_tree_iterator.23", align 8
  %5 = alloca ptr, align 8
  %6 = alloca %"struct.std::_Rb_tree_iterator.23", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #3
  %9 = getelementptr inbounds %"struct.std::_Rb_tree_iterator.23", ptr %3, i32 0, i32 0
  store ptr %8, ptr %9, align 8
  br label %10

10:                                               ; preds = %15, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %11) #3
  %13 = getelementptr inbounds %"struct.std::_Rb_tree_iterator.23", ptr %4, i32 0, i32 0
  store ptr %12, ptr %13, align 8
  %14 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEESM_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br i1 %14, label %15, label %21

15:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %16 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %17 = getelementptr inbounds %"struct.std::pair.24", ptr %16, i32 0, i32 1
  store ptr %17, ptr %5, align 8, !tbaa !5
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEE(ptr noundef nonnull align 8 dereferenceable(48) %18)
  %19 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %3, i32 noundef 0) #3
  %20 = getelementptr inbounds %"struct.std::_Rb_tree_iterator.23", ptr %6, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %10, !llvm.loop !9

21:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEESM_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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.std::_Rb_tree_iterator.23" = type { ptr }

; 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: mustprogress uwtable
declare dso_local void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEE(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES0_IS6_St6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEESD_SaISE_ISF_SI_EEE(ptr noundef nonnull align 8 dereferenceable(48) %0) local_unnamed_addr #1 {
  %2 = alloca %"struct.std::_Rb_tree_iterator.23", align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator.23", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %4 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  store ptr %4, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  store ptr %5, ptr %3, align 8
  %6 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEESM_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %7 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %8 = getelementptr inbounds i8, ptr %7, i64 32
  call void @_ZN4ardb15replace_env_varERSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_IS6_SaIS6_EESaIS9_EESt4lessIS6_ESaISt4pairIKS6_SB_EEE(ptr noundef nonnull align 8 dereferenceable(48) %8)
  %9 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %10 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  store ptr %10, ptr %3, align 8
  %11 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEESM_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %11, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEESM_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES_IS5_St6vectorIS6_IS5_SaIS5_EESaIS8_EESt4lessIS5_ESaISt4pairIKS5_SA_EEESC_SaISD_ISE_SH_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt3mapIS6_St6vectorIS9_IS6_SaIS6_EESaISB_EESt4lessIS6_ESaIS0_IS7_SD_EEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass