[lldb] Avoid repeated map lookups (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/112823.diff

1 Files Affected:

• (modified) lldb/source/Commands/CommandObjectMultiword.cpp (+2-4)

diff --git a/lldb/source/Commands/CommandObjectMultiword.cpp b/lldb/source/Commands/CommandObjectMultiword.cpp
index 484d9022027ec6..71339bd0f28b41 100644
--- a/lldb/source/Commands/CommandObjectMultiword.cpp
+++ b/lldb/source/Commands/CommandObjectMultiword.cpp
@@ -102,11 +102,9 @@ llvm::Error CommandObjectMultiword::LoadUserSubcommand(
 
   std::string str_name(name);
 
-  auto pos = m_subcommand_dict.find(str_name);
-  if (pos == m_subcommand_dict.end()) {
-    m_subcommand_dict[str_name] = cmd_obj_sp;
+  auto [pos, inserted] = m_subcommand_dict.try_emplace(str_name, cmd_obj_sp);
+  if (inserted)
     return llvm::Error::success();
-  }
 
   const char *error_str = nullptr;
   if (!can_replace)