; LLVM IR from yinqiwen/ardb :: src/common/channel/channel_pipeline.ll (ZN4ardb15ChannelPipeline10RemoveLastEv)

; 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.ardb::ChannelPipeline" = type { ptr, ptr, ptr, %"class.btree::btree_map" }
%"class.btree::btree_map" = type { %"class.btree::btree_map_container" }
%"class.btree::btree_map_container" = type { %"class.btree::btree_unique_container" }
%"class.btree::btree_unique_container" = type { %"class.btree::btree_container" }
%"class.btree::btree_container" = type { %"class.btree::btree" }
%"class.btree::btree" = type { %"struct.btree::btree<btree::btree_map_params<std::__cxx11::basic_string<char>, ardb::ChannelHandlerContext *, std::less<std::__cxx11::basic_string<char>>, std::allocator<std::pair<const std::__cxx11::basic_string<char>, ardb::ChannelHandlerContext *>>, 256>>::empty_base_handle" }
%"struct.btree::btree<btree::btree_map_params<std::__cxx11::basic_string<char>, ardb::ChannelHandlerContext *, std::less<std::__cxx11::basic_string<char>>, std::allocator<std::pair<const std::__cxx11::basic_string<char>, ardb::ChannelHandlerContext *>>, 256>>::empty_base_handle" = type { 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: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb21ChannelHandlerContext7SetNextEPS0_(ptr noundef nonnull align 8 dereferenceable(66), ptr noundef) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb21ChannelHandlerContextD2Ev(ptr noundef nonnull align 8 dereferenceable(66)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4ardb21ChannelHandlerContext10GetHandlerEv(ptr noundef nonnull align 8 dereferenceable(66)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN4ardb15ChannelPipeline10RemoveLastEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #3 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %8 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 2
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %9, ptr %4, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %1
  %11 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 2
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = icmp eq ptr null, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %10
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %53

15:                                               ; preds = %10
  br label %16

16:                                               ; preds = %15
  br label %17

17:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call noundef ptr @_ZN4ardb21ChannelHandlerContext10GetHandlerEv(ptr noundef nonnull align 8 dereferenceable(66) %18)
  store ptr %19, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %20)
  %22 = icmp eq ptr null, %21
  br i1 %22, label %23, label %34

23:                                               ; preds = %17
  %24 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 1
  store ptr null, ptr %24, align 8, !tbaa !17
  %25 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 2
  store ptr null, ptr %25, align 8, !tbaa !9
  %26 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 3
  call void @_ZN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(8) %26)
  br label %27

27:                                               ; preds = %23
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = icmp eq ptr %28, null
  br i1 %29, label %31, label %30

30:                                               ; preds = %27
  call void @_ZN4ardb21ChannelHandlerContextD2Ev(ptr noundef nonnull align 8 dereferenceable(66) %28) #4
  call void @_ZdlPvm(ptr noundef %28, i64 noundef 72) #5
  br label %31

31:                                               ; preds = %30, %27
  store ptr null, ptr %4, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %31
  br label %33

33:                                               ; preds = %32
  br label %44

34:                                               ; preds = %17
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %35)
  call void @_ZN4ardb21ChannelHandlerContext7SetNextEPS0_(ptr noundef nonnull align 8 dereferenceable(66) %36, ptr noundef null)
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %37)
  %39 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 2
  store ptr %38, ptr %39, align 8, !tbaa !9
  %40 = getelementptr inbounds %"class.ardb::ChannelPipeline", ptr %7, i32 0, i32 3
  %41 = load ptr, ptr %4, align 8, !tbaa !5
  %42 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN4ardb21ChannelHandlerContext7GetNameB5cxx11Ev(ptr noundef nonnull align 8 dereferenceable(66) %41)
  %43 = call noundef i32 @_ZN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5eraseERSF_(ptr noundef nonnull align 8 dereferenceable(8) %40, ptr noundef nonnull align 8 dereferenceable(32) %42)
  br label %44

44:                                               ; preds = %34, %33
  br label %45

45:                                               ; preds = %44
  %46 = load ptr, ptr %4, align 8, !tbaa !5
  %47 = icmp eq ptr %46, null
  br i1 %47, label %49, label %48

48:                                               ; preds = %45
  call void @_ZN4ardb21ChannelHandlerContextD2Ev(ptr noundef nonnull align 8 dereferenceable(66) %46) #4
  call void @_ZdlPvm(ptr noundef %46, i64 noundef 72) #5
  br label %49

49:                                               ; preds = %48, %45
  store ptr null, ptr %4, align 8, !tbaa !5
  br label %50

50:                                               ; preds = %49
  br label %51

51:                                               ; preds = %50
  %52 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %52, ptr %2, align 8
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %53

53:                                               ; preds = %51, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  %54 = load ptr, ptr %2, align 8
  ret ptr %54
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5eraseERSF_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN4ardb21ChannelHandlerContext7GetNameB5cxx11Ev(ptr noundef nonnull align 8 dereferenceable(66)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nobuiltin 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" }
attributes #2 = { inlinehint 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 = { 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 #4 = { nounwind }
attributes #5 = { builtin 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 = !{!"_ZTSN4ardb15ChannelPipelineE", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24}
!11 = !{!"_ZTSN5btree9btree_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS6_ESaISt4pairIKS6_S9_EELi256EEE", !12, i64 0}
!12 = !{!"_ZTSN5btree19btree_map_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !13, i64 0}
!13 = !{!"_ZTSN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !14, i64 0}
!14 = !{!"_ZTSN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !15, i64 0}
!15 = !{!"_ZTSN5btree5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS7_ESaISt4pairIKS7_SA_EELi256EEEEE", !16, i64 0}
!16 = !{!"_ZTSN5btree5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS7_ESaISt4pairIKS7_SA_EELi256EEEE17empty_base_handleIS6_PNS_10btree_nodeISH_EEEE", !6, i64 0}
!17 = !{!10, !6, i64 8}


; 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: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb21ChannelHandlerContext7SetNextEPS0_(ptr noundef nonnull align 8 dereferenceable(66), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb21ChannelHandlerContextD2Ev(ptr noundef nonnull align 8 dereferenceable(66)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN4ardb21ChannelHandlerContext10GetHandlerEv(ptr noundef nonnull align 8 dereferenceable(66)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN4ardb15ChannelPipeline10RemoveLastEv(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #2 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %17, label %5

5:                                                ; preds = %1
  %6 = tail call noundef ptr @_ZN4ardb21ChannelHandlerContext10GetHandlerEv(ptr noundef nonnull align 8 dereferenceable(66) %3)
  %7 = tail call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %3)
  %8 = icmp eq ptr %7, null
  br i1 %8, label %.thread, label %11

.thread:                                          ; preds = %5
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %9, i8 0, i64 16, i1 false)
  tail call void @_ZN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(8) %10)
  br label %.sink.split

11:                                               ; preds = %5
  %12 = tail call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %3)
  tail call void @_ZN4ardb21ChannelHandlerContext7SetNextEPS0_(ptr noundef nonnull align 8 dereferenceable(66) %12, ptr noundef null)
  %13 = tail call noundef ptr @_ZN4ardb21ChannelHandlerContext7GetPrevEv(ptr noundef nonnull align 8 dereferenceable(66) %3)
  store ptr %13, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %0, i64 24
  %15 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZN4ardb21ChannelHandlerContext7GetNameB5cxx11Ev(ptr noundef nonnull align 8 dereferenceable(66) %3)
  %16 = tail call noundef i32 @_ZN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5eraseERSF_(ptr noundef nonnull align 8 dereferenceable(8) %14, ptr noundef nonnull align 8 dereferenceable(32) %15)
  br label %.sink.split

.sink.split:                                      ; preds = %11, %.thread
  tail call void @_ZN4ardb21ChannelHandlerContextD2Ev(ptr noundef nonnull align 8 dereferenceable(66) %3) #4
  tail call void @_ZdlPvm(ptr noundef nonnull %3, i64 noundef 72) #5
  br label %17

17:                                               ; preds = %.sink.split, %1
  %.0 = phi ptr [ null, %1 ], [ %6, %.sink.split ]
  ret ptr %.0
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEE5eraseERSF_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN4ardb21ChannelHandlerContext7GetNameB5cxx11Ev(ptr noundef nonnull align 8 dereferenceable(66)) local_unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

attributes #0 = { nobuiltin 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" }
attributes #1 = { inlinehint 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 #2 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nounwind }
attributes #5 = { builtin 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, !7, i64 16}
!6 = !{!"_ZTSN4ardb15ChannelPipelineE", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN5btree9btree_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS6_ESaISt4pairIKS6_S9_EELi256EEE", !11, i64 0}
!11 = !{!"_ZTSN5btree19btree_map_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !12, i64 0}
!12 = !{!"_ZTSN5btree22btree_unique_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !13, i64 0}
!13 = !{!"_ZTSN5btree15btree_containerINS_5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS8_ESaISt4pairIKS8_SB_EELi256EEEEEEE", !14, i64 0}
!14 = !{!"_ZTSN5btree5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS7_ESaISt4pairIKS7_SA_EELi256EEEEE", !15, i64 0}
!15 = !{!"_ZTSN5btree5btreeINS_16btree_map_paramsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPN4ardb21ChannelHandlerContextESt4lessIS7_ESaISt4pairIKS7_SA_EELi256EEEE17empty_base_handleIS6_PNS_10btree_nodeISH_EEEE", !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,MemCpyOptPass,SROAPass,SimplifyCFGPass,TailCallElimPass