From a63af915288ad9d1049d486833fcd085b620dc6d Mon Sep 17 00:00:00 2001
From: Alex Langford <apl@fb.com>
Date: Wed, 8 Jan 2020 15:35:21 -0800
Subject: [PATCH] [lldb] Remove various dead Compare functions

---
 lldb/source/Core/Section.cpp                       | 23 ------
 .../Plugins/SymbolFile/DWARF/DWARFFormValue.cpp    | 95 ----------------------
 lldb/source/Symbol/Function.cpp                    | 10 ---
 lldb/source/Symbol/Type.cpp                        | 11 ---
 4 files changed, 139 deletions(-)

diff --git a/lldb/source/Core/Section.cpp b/lldb/source/Core/Section.cpp
index 4a9acab..b1d7eee 100644
--- a/lldb/source/Core/Section.cpp
+++ b/lldb/source/Core/Section.cpp
@@ -280,29 +280,6 @@ bool Section::ContainsFileAddress(addr_t vm_addr) const {
   return false;
 }
 
-int Section::Compare(const Section &a, const Section &b) {
-  if (&a == &b)
-    return 0;
-
-  const ModuleSP a_module_sp = a.GetModule();
-  const ModuleSP b_module_sp = b.GetModule();
-  if (a_module_sp == b_module_sp) {
-    user_id_t a_sect_uid = a.GetID();
-    user_id_t b_sect_uid = b.GetID();
-    if (a_sect_uid < b_sect_uid)
-      return -1;
-    if (a_sect_uid > b_sect_uid)
-      return 1;
-    return 0;
-  } else {
-    // The modules are different, just compare the module pointers
-    if (a_module_sp.get() < b_module_sp.get())
-      return -1;
-    else
-      return 1; // We already know the modules aren't equal
-  }
-}
-
 void Section::Dump(Stream *s, Target *target, uint32_t depth) const {
   //    s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
   s->Indent();
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
index 5cab4ce..f660cc32 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
@@ -602,101 +602,6 @@ bool DWARFFormValue::IsDataForm(const dw_form_t form) {
   return false;
 }
 
-int DWARFFormValue::Compare(const DWARFFormValue &a_value,
-                            const DWARFFormValue &b_value) {
-  dw_form_t a_form = a_value.Form();
-  dw_form_t b_form = b_value.Form();
-  if (a_form < b_form)
-    return -1;
-  if (a_form > b_form)
-    return 1;
-  switch (a_form) {
-  case DW_FORM_addr:
-  case DW_FORM_addrx:
-  case DW_FORM_flag:
-  case DW_FORM_data1:
-  case DW_FORM_data2:
-  case DW_FORM_data4:
-  case DW_FORM_data8:
-  case DW_FORM_udata:
-  case DW_FORM_ref_addr:
-  case DW_FORM_sec_offset:
-  case DW_FORM_flag_present:
-  case DW_FORM_ref_sig8:
-  case DW_FORM_GNU_addr_index: {
-    uint64_t a = a_value.Unsigned();
-    uint64_t b = b_value.Unsigned();
-    if (a < b)
-      return -1;
-    if (a > b)
-      return 1;
-    return 0;
-  }
-
-  case DW_FORM_sdata: {
-    int64_t a = a_value.Signed();
-    int64_t b = b_value.Signed();
-    if (a < b)
-      return -1;
-    if (a > b)
-      return 1;
-    return 0;
-  }
-
-  case DW_FORM_string:
-  case DW_FORM_strp:
-  case DW_FORM_GNU_str_index: {
-    const char *a_string = a_value.AsCString();
-    const char *b_string = b_value.AsCString();
-    if (a_string == b_string)
-      return 0;
-    else if (a_string && b_string)
-      return strcmp(a_string, b_string);
-    else if (a_string == nullptr)
-      return -1; // A string is NULL, and B is valid
-    else
-      return 1; // A string valid, and B is NULL
-  }
-
-  case DW_FORM_block:
-  case DW_FORM_block1:
-  case DW_FORM_block2:
-  case DW_FORM_block4:
-  case DW_FORM_exprloc: {
-    uint64_t a_len = a_value.Unsigned();
-    uint64_t b_len = b_value.Unsigned();
-    if (a_len < b_len)
-      return -1;
-    if (a_len > b_len)
-      return 1;
-    // The block lengths are the same
-    return memcmp(a_value.BlockData(), b_value.BlockData(), a_value.Unsigned());
-  } break;
-
-  case DW_FORM_ref1:
-  case DW_FORM_ref2:
-  case DW_FORM_ref4:
-  case DW_FORM_ref8:
-  case DW_FORM_ref_udata: {
-    uint64_t a = a_value.m_value.value.uval;
-    uint64_t b = b_value.m_value.value.uval;
-    if (a < b)
-      return -1;
-    if (a > b)
-      return 1;
-    return 0;
-  }
-
-  case DW_FORM_indirect:
-    llvm_unreachable(
-        "This shouldn't happen after the form has been extracted...");
-
-  default:
-    llvm_unreachable("Unhandled DW_FORM");
-  }
-  return -1;
-}
-
 bool DWARFFormValue::FormIsSupported(dw_form_t form) {
   switch (form) {
     case DW_FORM_addr:
diff --git a/lldb/source/Symbol/Function.cpp b/lldb/source/Symbol/Function.cpp
index c392317..e92585cc 100644
--- a/lldb/source/Symbol/Function.cpp
+++ b/lldb/source/Symbol/Function.cpp
@@ -76,16 +76,6 @@ InlineFunctionInfo::InlineFunctionInfo(ConstString name,
 
 InlineFunctionInfo::~InlineFunctionInfo() {}
 
-int InlineFunctionInfo::Compare(const InlineFunctionInfo &a,
-                                const InlineFunctionInfo &b) {
-
-  int result = FunctionInfo::Compare(a, b);
-  if (result)
-    return result;
-  // only compare the mangled names if both have them
-  return Mangled::Compare(a.m_mangled, a.m_mangled);
-}
-
 void InlineFunctionInfo::Dump(Stream *s, bool show_fullpaths) const {
   FunctionInfo::Dump(s, show_fullpaths);
   if (m_mangled)
diff --git a/lldb/source/Symbol/Type.cpp b/lldb/source/Symbol/Type.cpp
index aeca76f..f194356 100644
--- a/lldb/source/Symbol/Type.cpp
+++ b/lldb/source/Symbol/Type.cpp
@@ -656,17 +656,6 @@ CompilerType Type::GetForwardCompilerType() {
   return m_compiler_type;
 }
 
-int Type::Compare(const Type &a, const Type &b) {
-  // Just compare the UID values for now...
-  lldb::user_id_t a_uid = a.GetID();
-  lldb::user_id_t b_uid = b.GetID();
-  if (a_uid < b_uid)
-    return -1;
-  if (a_uid > b_uid)
-    return 1;
-  return 0;
-}
-
 ConstString Type::GetQualifiedName() {
   return GetForwardCompilerType().GetConstTypeName();
 }
-- 
2.7.4