https://github.com/kazutakahirata created
https://github.com/llvm/llvm-project/pull/122858
None
>From 227e7f718acbef18a4b5e93cc6ea8cc0b2249062 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <k...@google.com>
Date: Mon, 13 Jan 2025 21:08:39 -0800
Subject: [PATCH] [AST] Avoid repeated map lookups (NFC)
---
clang/lib/AST/ExternalASTMerger.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/clang/lib/AST/ExternalASTMerger.cpp
b/clang/lib/AST/ExternalASTMerger.cpp
index 8bad3b36244e15..7f7816e1b10eae 100644
--- a/clang/lib/AST/ExternalASTMerger.cpp
+++ b/clang/lib/AST/ExternalASTMerger.cpp
@@ -276,8 +276,8 @@ bool ExternalASTMerger::HasImporterForOrigin(ASTContext
&OriginContext) {
template <typename CallbackType>
void ExternalASTMerger::ForEachMatchingDC(const DeclContext *DC,
CallbackType Callback) {
- if (Origins.count(DC)) {
- ExternalASTMerger::DCOrigin Origin = Origins[DC];
+ if (auto It = Origins.find(DC); It != Origins.end()) {
+ ExternalASTMerger::DCOrigin Origin = It->second;
LazyASTImporter &Importer = LazyImporterForOrigin(*this, *Origin.AST);
Callback(Importer, Importer.GetReverse(), Origin.DC);
} else {
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