diff --git a/lldb/include/lldb/Core/ModuleSpec.h b/lldb/include/lldb/Core/ModuleSpec.h
--- a/lldb/include/lldb/Core/ModuleSpec.h
+++ b/lldb/include/lldb/Core/ModuleSpec.h
@@ -251,24 +251,18 @@
     if (match_module_spec.GetObjectName() &&
         match_module_spec.GetObjectName() != GetObjectName())
       return false;
-    if (match_module_spec.GetFileSpecPtr()) {
-      const FileSpec &fspec = match_module_spec.GetFileSpec();
-      if (!FileSpec::Equal(fspec, GetFileSpec(),
-                           !fspec.GetDirectory().IsEmpty()))
-        return false;
-    }
-    if (GetPlatformFileSpec() && match_module_spec.GetPlatformFileSpecPtr()) {
-      const FileSpec &fspec = match_module_spec.GetPlatformFileSpec();
-      if (!FileSpec::Equal(fspec, GetPlatformFileSpec(),
-                           !fspec.GetDirectory().IsEmpty()))
-        return false;
+    if (!FileSpec::Match(match_module_spec.GetFileSpec(), GetFileSpec()))
+      return false;
+    if (GetPlatformFileSpec() &&
+        !FileSpec::Match(match_module_spec.GetPlatformFileSpec(),
+                         GetPlatformFileSpec())) {
+      return false;
     }
     // Only match the symbol file spec if there is one in this ModuleSpec
-    if (GetSymbolFileSpec() && match_module_spec.GetSymbolFileSpecPtr()) {
-      const FileSpec &fspec = match_module_spec.GetSymbolFileSpec();
-      if (!FileSpec::Equal(fspec, GetSymbolFileSpec(),
-                           !fspec.GetDirectory().IsEmpty()))
-        return false;
+    if (GetSymbolFileSpec() &&
+        !FileSpec::Match(match_module_spec.GetSymbolFileSpec(),
+                         GetSymbolFileSpec())) {
+      return false;
     }
     if (match_module_spec.GetArchitecturePtr()) {
       if (exact_arch_match) {
diff --git a/lldb/include/lldb/Core/SourceManager.h b/lldb/include/lldb/Core/SourceManager.h
--- a/lldb/include/lldb/Core/SourceManager.h
+++ b/lldb/include/lldb/Core/SourceManager.h
@@ -54,8 +54,6 @@
 
     bool LineIsValid(uint32_t line);
 
-    bool FileSpecMatches(const FileSpec &file_spec);
-
     const FileSpec &GetFileSpec() { return m_file_spec; }
 
     uint32_t GetSourceMapModificationID() const { return m_source_map_mod_id; }
diff --git a/lldb/include/lldb/Utility/FileSpec.h b/lldb/include/lldb/Utility/FileSpec.h
--- a/lldb/include/lldb/Utility/FileSpec.h
+++ b/lldb/include/lldb/Utility/FileSpec.h
@@ -195,6 +195,12 @@
 
   static bool Equal(const FileSpec &a, const FileSpec &b, bool full);
 
+  /// Match FileSpec \a pattern against FileSpec \a file. If \a pattern has a
+  /// directory component, then the \a file must have the same directory
+  /// component. Otherwise, just it matches just the filename. An empty \a
+  /// pattern matches everything.
+  static bool Match(const FileSpec &pattern, const FileSpec &file);
+
   /// Attempt to guess path style for a given path string. It returns a style,
   /// if it was able to make a reasonable guess, or None if it wasn't. The guess
   /// will be correct if the input path was a valid absolute path on the system
diff --git a/lldb/source/Breakpoint/Breakpoint.cpp b/lldb/source/Breakpoint/Breakpoint.cpp
--- a/lldb/source/Breakpoint/Breakpoint.cpp
+++ b/lldb/source/Breakpoint/Breakpoint.cpp
@@ -638,8 +638,8 @@
   } else {
     // Otherwise we will compare by name...
     if (old_sc.comp_unit && new_sc.comp_unit) {
-      if (FileSpec::Equal(old_sc.comp_unit->GetPrimaryFile(),
-                          new_sc.comp_unit->GetPrimaryFile(), true)) {
+      if (old_sc.comp_unit->GetPrimaryFile() ==
+          new_sc.comp_unit->GetPrimaryFile()) {
         // Now check the functions:
         if (old_sc.function && new_sc.function &&
             (old_sc.function->GetName() == new_sc.function->GetName())) {
diff --git a/lldb/source/Commands/CommandObjectSource.cpp b/lldb/source/Commands/CommandObjectSource.cpp
--- a/lldb/source/Commands/CommandObjectSource.cpp
+++ b/lldb/source/Commands/CommandObjectSource.cpp
@@ -146,12 +146,6 @@
     Target *target = m_exe_ctx.GetTargetPtr();
 
     uint32_t num_matches = 0;
-    bool has_path = false;
-    if (file_spec) {
-      assert(file_spec.GetFilename().AsCString());
-      has_path = (file_spec.GetDirectory().AsCString() != nullptr);
-    }
-
     // Dump all the line entries for the file in the list.
     ConstString last_module_file_name;
     uint32_t num_scs = sc_list.GetSize();
@@ -168,8 +162,7 @@
         if (module_list.GetSize() &&
             module_list.GetIndexForModule(module) == LLDB_INVALID_INDEX32)
           continue;
-        if (file_spec && !lldb_private::FileSpec::Equal(
-                             file_spec, line_entry.file, has_path))
+        if (!FileSpec::Match(file_spec, line_entry.file))
           continue;
         if (start_line > 0 && line_entry.line < start_line)
           continue;
@@ -250,8 +243,7 @@
             num_matches++;
             if (num_lines > 0 && num_matches > num_lines)
               break;
-            assert(lldb_private::FileSpec::Equal(cu_file_spec, line_entry.file,
-                                                 has_path));
+            assert(cu_file_spec == line_entry.file);
             if (!cu_header_printed) {
               if (num_matches > 0)
                 strm << "\n\n";
diff --git a/lldb/source/Core/IOHandler.cpp b/lldb/source/Core/IOHandler.cpp
--- a/lldb/source/Core/IOHandler.cpp
+++ b/lldb/source/Core/IOHandler.cpp
@@ -3882,7 +3882,7 @@
           if (context_changed)
             m_selected_line = m_pc_line;
 
-          if (m_file_sp && m_file_sp->FileSpecMatches(m_sc.line_entry.file)) {
+          if (m_file_sp && m_file_sp->GetFileSpec() == m_sc.line_entry.file) {
             // Same file, nothing to do, we should either have the lines or not
             // (source file missing)
             if (m_selected_line >= static_cast<size_t>(m_first_visible_line)) {
diff --git a/lldb/source/Core/Module.cpp b/lldb/source/Core/Module.cpp
--- a/lldb/source/Core/Module.cpp
+++ b/lldb/source/Core/Module.cpp
@@ -613,12 +613,10 @@
   const size_t num_compile_units = GetNumCompileUnits();
   SymbolContext sc;
   sc.module_sp = shared_from_this();
-  const bool compare_directory = (bool)path.GetDirectory();
   for (size_t i = 0; i < num_compile_units; ++i) {
     sc.comp_unit = GetCompileUnitAtIndex(i).get();
     if (sc.comp_unit) {
-      if (FileSpec::Equal(sc.comp_unit->GetPrimaryFile(), path,
-                          compare_directory))
+      if (FileSpec::Match(path, sc.comp_unit->GetPrimaryFile()))
         sc_list.Append(sc);
     }
   }
@@ -1560,19 +1558,13 @@
   }
 
   const FileSpec &file_spec = module_ref.GetFileSpec();
-  if (file_spec) {
-    if (!FileSpec::Equal(file_spec, m_file, (bool)file_spec.GetDirectory()) &&
-        !FileSpec::Equal(file_spec, m_platform_file,
-                         (bool)file_spec.GetDirectory()))
-      return false;
-  }
+  if (!FileSpec::Match(file_spec, m_file) &&
+      !FileSpec::Match(file_spec, m_platform_file))
+    return false;
 
   const FileSpec &platform_file_spec = module_ref.GetPlatformFileSpec();
-  if (platform_file_spec) {
-    if (!FileSpec::Equal(platform_file_spec, GetPlatformFileSpec(),
-                         (bool)platform_file_spec.GetDirectory()))
-      return false;
-  }
+  if (!FileSpec::Match(platform_file_spec, GetPlatformFileSpec()))
+    return false;
 
   const ArchSpec &arch = module_ref.GetArchitecture();
   if (arch.IsValid()) {
diff --git a/lldb/source/Core/SearchFilter.cpp b/lldb/source/Core/SearchFilter.cpp
--- a/lldb/source/Core/SearchFilter.cpp
+++ b/lldb/source/Core/SearchFilter.cpp
@@ -403,13 +403,11 @@
 
 bool SearchFilterByModule::ModulePasses(const ModuleSP &module_sp) {
   return (module_sp &&
-          FileSpec::Equal(module_sp->GetFileSpec(), m_module_spec, false));
+          FileSpec::Match(m_module_spec, module_sp->GetFileSpec()));
 }
 
 bool SearchFilterByModule::ModulePasses(const FileSpec &spec) {
-  // Do a full match only if "spec" has a directory
-  const bool full_match = (bool)spec.GetDirectory();
-  return FileSpec::Equal(spec, m_module_spec, full_match);
+  return FileSpec::Match(m_module_spec, spec);
 }
 
 bool SearchFilterByModule::AddressPasses(Address &address) {
@@ -443,8 +441,7 @@
   const size_t num_modules = target_modules.GetSize();
   for (size_t i = 0; i < num_modules; i++) {
     Module *module = target_modules.GetModulePointerAtIndexUnlocked(i);
-    const bool full_match = (bool)m_module_spec.GetDirectory();
-    if (FileSpec::Equal(m_module_spec, module->GetFileSpec(), full_match)) {
+    if (FileSpec::Match(m_module_spec, module->GetFileSpec())) {
       SymbolContext matchingContext(m_target_sp, module->shared_from_this());
       Searcher::CallbackReturn shouldContinue;
 
diff --git a/lldb/source/Core/SourceManager.cpp b/lldb/source/Core/SourceManager.cpp
--- a/lldb/source/Core/SourceManager.cpp
+++ b/lldb/source/Core/SourceManager.cpp
@@ -64,7 +64,8 @@
 
 SourceManager::FileSP SourceManager::GetFile(const FileSpec &file_spec) {
   bool same_as_previous =
-      m_last_file_sp && m_last_file_sp->FileSpecMatches(file_spec);
+      m_last_file_sp &&
+      FileSpec::Match(file_spec, m_last_file_sp->GetFileSpec());
 
   DebuggerSP debugger_sp(m_debugger_wp.lock());
   FileSP file_sp;
@@ -602,10 +603,6 @@
   }
 }
 
-bool SourceManager::File::FileSpecMatches(const FileSpec &file_spec) {
-  return FileSpec::Equal(m_file_spec, file_spec, false);
-}
-
 bool lldb_private::operator==(const SourceManager::File &lhs,
                               const SourceManager::File &rhs) {
   if (lhs.m_file_spec != rhs.m_file_spec)
diff --git a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
--- a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
+++ b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
@@ -235,7 +235,7 @@
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
 
   if (IsHost()) {
-    if (FileSpec::Equal(source, destination, true))
+    if (source == destination)
       return Status();
     // cp src dst
     // chown uid:gid dst
@@ -307,7 +307,7 @@
   if (dst_path.empty())
     return Status("unable to get file path for destination");
   if (IsHost()) {
-    if (FileSpec::Equal(source, destination, true))
+    if (source == destination)
       return Status("local scenario->source and destination are the same file "
                     "path: no operation performed");
     // cp src dst
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -1950,9 +1950,8 @@
       if (!dc_cu)
         continue;
 
-      const bool full_match = (bool)file_spec.GetDirectory();
       bool file_spec_matches_cu_file_spec =
-          FileSpec::Equal(file_spec, dc_cu->GetPrimaryFile(), full_match);
+          FileSpec::Match(file_spec, dc_cu->GetPrimaryFile());
       if (check_inlines || file_spec_matches_cu_file_spec) {
         SymbolContext sc(m_objfile_sp->GetModule());
         sc.comp_unit = dc_cu;
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
@@ -812,12 +812,8 @@
 
     if (!resolve) {
       FileSpec so_file_spec;
-      if (GetFileSpecForSO(i, so_file_spec)) {
-        // Match the full path if the incoming file_spec has a directory (not
-        // just a basename)
-        const bool full_match = (bool)file_spec.GetDirectory();
-        resolve = FileSpec::Equal(file_spec, so_file_spec, full_match);
-      }
+      if (GetFileSpecForSO(i, so_file_spec))
+        resolve = FileSpec::Match(file_spec, so_file_spec);
     }
     if (resolve) {
       SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(i);
diff --git a/lldb/source/Symbol/CompileUnit.cpp b/lldb/source/Symbol/CompileUnit.cpp
--- a/lldb/source/Symbol/CompileUnit.cpp
+++ b/lldb/source/Symbol/CompileUnit.cpp
@@ -243,9 +243,8 @@
   // "file_spec" has an empty directory, then only compare the basenames when
   // finding file indexes
   std::vector<uint32_t> file_indexes;
-  const bool full_match = (bool)file_spec.GetDirectory();
   bool file_spec_matches_cu_file_spec =
-      FileSpec::Equal(file_spec, this->GetPrimaryFile(), full_match);
+      FileSpec::Match(file_spec, this->GetPrimaryFile());
 
   // If we are not looking for inlined functions and our file spec doesn't
   // match then we are done...
diff --git a/lldb/source/Symbol/Declaration.cpp b/lldb/source/Symbol/Declaration.cpp
--- a/lldb/source/Symbol/Declaration.cpp
+++ b/lldb/source/Symbol/Declaration.cpp
@@ -90,12 +90,9 @@
 
 bool lldb_private::operator==(const Declaration &lhs, const Declaration &rhs) {
 #ifdef LLDB_ENABLE_DECLARATION_COLUMNS
-  if (lhs.GetColumn() == rhs.GetColumn())
-    if (lhs.GetLine() == rhs.GetLine())
-      return lhs.GetFile() == rhs.GetFile();
+  if (lhs.GetColumn() != rhs.GetColumn())
+    return false;
 #else
-  if (lhs.GetLine() == rhs.GetLine())
-    return FileSpec::Equal(lhs.GetFile(), rhs.GetFile(), true);
+  return lhs.GetLine() == rhs.GetLine() && lhs.GetFile() == rhs.GetFile();
 #endif
-  return false;
 }
diff --git a/lldb/source/Symbol/SymbolContext.cpp b/lldb/source/Symbol/SymbolContext.cpp
--- a/lldb/source/Symbol/SymbolContext.cpp
+++ b/lldb/source/Symbol/SymbolContext.cpp
@@ -1026,8 +1026,7 @@
           return false;
       } else {
         FileSpec module_file_spec(m_module_spec);
-        if (!FileSpec::Equal(module_file_spec, sc.module_sp->GetFileSpec(),
-                             false))
+        if (!FileSpec::Match(module_file_spec, sc.module_sp->GetFileSpec()))
           return false;
       }
     }
@@ -1046,8 +1045,8 @@
             sc.block->GetInlinedFunctionInfo();
         if (inline_info != nullptr) {
           was_inlined = true;
-          if (!FileSpec::Equal(inline_info->GetDeclaration().GetFile(),
-                               *(m_file_spec_up.get()), false))
+          if (!FileSpec::Match(*m_file_spec_up,
+                               inline_info->GetDeclaration().GetFile()))
             return false;
         }
       }
@@ -1055,8 +1054,7 @@
       // Next check the comp unit, but only if the SymbolContext was not
       // inlined.
       if (!was_inlined && sc.comp_unit != nullptr) {
-        if (!FileSpec::Equal(sc.comp_unit->GetPrimaryFile(), *m_file_spec_up,
-                             false))
+        if (!FileSpec::Match(*m_file_spec_up, sc.comp_unit->GetPrimaryFile()))
           return false;
       }
     }
diff --git a/lldb/source/Target/TargetList.cpp b/lldb/source/Target/TargetList.cpp
--- a/lldb/source/Target/TargetList.cpp
+++ b/lldb/source/Target/TargetList.cpp
@@ -457,15 +457,12 @@
     const FileSpec &exe_file_spec, const ArchSpec *exe_arch_ptr) const {
   std::lock_guard<std::recursive_mutex> guard(m_target_list_mutex);
   TargetSP target_sp;
-  bool full_match = (bool)exe_file_spec.GetDirectory();
-
   collection::const_iterator pos, end = m_target_list.end();
   for (pos = m_target_list.begin(); pos != end; ++pos) {
     Module *exe_module = (*pos)->GetExecutableModulePointer();
 
     if (exe_module) {
-      if (FileSpec::Equal(exe_file_spec, exe_module->GetFileSpec(),
-                          full_match)) {
+      if (FileSpec::Match(exe_file_spec, exe_module->GetFileSpec())) {
         if (exe_arch_ptr) {
           if (!exe_arch_ptr->IsCompatibleMatch(exe_module->GetArchitecture()))
             continue;
diff --git a/lldb/source/Target/ThreadPlanStepInRange.cpp b/lldb/source/Target/ThreadPlanStepInRange.cpp
--- a/lldb/source/Target/ThreadPlanStepInRange.cpp
+++ b/lldb/source/Target/ThreadPlanStepInRange.cpp
@@ -339,7 +339,7 @@
     if (frame_library) {
       for (size_t i = 0; i < num_libraries; i++) {
         const FileSpec &file_spec(libraries_to_avoid.GetFileSpecAtIndex(i));
-        if (FileSpec::Equal(file_spec, frame_library, false)) {
+        if (FileSpec::Match(file_spec, frame_library)) {
           libraries_say_avoid = true;
           break;
         }
diff --git a/lldb/source/Utility/FileSpec.cpp b/lldb/source/Utility/FileSpec.cpp
--- a/lldb/source/Utility/FileSpec.cpp
+++ b/lldb/source/Utility/FileSpec.cpp
@@ -308,6 +308,14 @@
   return a.FileEquals(b);
 }
 
+bool FileSpec::Match(const FileSpec &pattern, const FileSpec &file) {
+  if (pattern.GetDirectory())
+    return pattern == file;
+  if (pattern.GetFilename())
+    return pattern.FileEquals(file);
+  return true;
+}
+
 llvm::Optional<FileSpec::Style> FileSpec::GuessPathStyle(llvm::StringRef absolute_path) {
   if (absolute_path.startswith("/"))
     return Style::posix;
diff --git a/lldb/unittests/Utility/FileSpecTest.cpp b/lldb/unittests/Utility/FileSpecTest.cpp
--- a/lldb/unittests/Utility/FileSpecTest.cpp
+++ b/lldb/unittests/Utility/FileSpecTest.cpp
@@ -399,3 +399,24 @@
   EXPECT_FALSE(Eq("foo", "/bar/foo", true));
   EXPECT_TRUE(Eq("foo", "/bar/foo", false));
 }
+
+TEST(FileSpecTest, Match) {
+  auto Match = [](const char *pattern, const char *file) {
+    return FileSpec::Match(PosixSpec(pattern), PosixSpec(file));
+  };
+  EXPECT_TRUE(Match("/foo/bar", "/foo/bar"));
+  EXPECT_FALSE(Match("/foo/bar", "/oof/bar"));
+  EXPECT_FALSE(Match("/foo/bar", "/foo/baz"));
+  EXPECT_FALSE(Match("/foo/bar", "bar"));
+  EXPECT_FALSE(Match("/foo/bar", ""));
+
+  EXPECT_TRUE(Match("bar", "/foo/bar"));
+  EXPECT_FALSE(Match("bar", "/foo/baz"));
+  EXPECT_TRUE(Match("bar", "bar"));
+  EXPECT_FALSE(Match("bar", "baz"));
+  EXPECT_FALSE(Match("bar", ""));
+
+  EXPECT_TRUE(Match("", "/foo/bar"));
+  EXPECT_TRUE(Match("", ""));
+
+}