[clang] [Driver] Avoid repeated map lookups (NFC) (PR #122625)

[Kazu Hirata via cfe-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/122625

None

>From b9a6a99e421170fbc1fb8c6641a83d21dfa0076c Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sat, 11 Jan 2025 17:53:36 -0800
Subject: [PATCH] [Driver] Avoid repeated map lookups (NFC)

---
 clang/lib/Driver/Driver.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 4d9492ea08f647..10df730744b089 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -2534,8 +2534,8 @@ enum {
 static unsigned PrintActions1(const Compilation &C, Action *A,
                               std::map<Action *, unsigned> &Ids,
                               Twine Indent = {}, int Kind = TopLevelAction) {
-  if (Ids.count(A)) // A was already visited.
-    return Ids[A];
+  if (auto It = Ids.find(A); It != Ids.end()) // A was already visited.
+    return It->second;
 
   std::string str;
   llvm::raw_string_ostream os(str);