[llvm] ede866d - [ExecutionEngine] Avoid repeated hash lookups (NFC) (#110621)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-10-01T07:48:41-07:00
New Revision: ede866d708c1af64d333da77b024ce2b50b2a5da

URL: https://github.com/llvm/llvm-project/commit/ede866d708c1af64d333da77b024ce2b50b2a5da
DIFF: https://github.com/llvm/llvm-project/commit/ede866d708c1af64d333da77b024ce2b50b2a5da.diff

LOG: [ExecutionEngine] Avoid repeated hash lookups (NFC) (#110621)

Added: 
    

Modified: 
    llvm/lib/ExecutionEngine/Orc/Debugging/VTuneSupportPlugin.cpp

Removed: 
    


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diff  --git a/llvm/lib/ExecutionEngine/Orc/Debugging/VTuneSupportPlugin.cpp b/llvm/lib/ExecutionEngine/Orc/Debugging/VTuneSupportPlugin.cpp
index 30a9728c8c20e3..de02a20524b9cb 100644
--- a/llvm/lib/ExecutionEngine/Orc/Debugging/VTuneSupportPlugin.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/Debugging/VTuneSupportPlugin.cpp
@@ -39,12 +39,12 @@ static VTuneMethodBatch getMethodBatch(LinkGraph &G, bool EmitDebugInfo) {
 
   auto GetStringIdx = [Deduplicator = StringMap<uint32_t>(),
                        &Batch](StringRef S) mutable {
-    auto I = Deduplicator.find(S);
-    if (I != Deduplicator.end())
-      return I->second;
-
-    Batch.Strings.push_back(S.str());
-    return Deduplicator[S] = Batch.Strings.size();
+    auto [I, Inserted] = Deduplicator.try_emplace(S);
+    if (Inserted) {
+      Batch.Strings.push_back(S.str());
+      I->second = Batch.Strings.size();
+    }
+    return I->second;
   };
   for (auto Sym : G.defined_symbols()) {
     if (!Sym->isCallable())