[llvm] 05209f1 - [ExecutionEngine] Avoid repeated hash lookups (NFC) (#127303)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-15T01:37:02-08:00
New Revision: 05209f1e598f73913bf0284bfbbb88131149bbcf

URL: https://github.com/llvm/llvm-project/commit/05209f1e598f73913bf0284bfbbb88131149bbcf
DIFF: https://github.com/llvm/llvm-project/commit/05209f1e598f73913bf0284bfbbb88131149bbcf.diff

LOG: [ExecutionEngine] Avoid repeated hash lookups (NFC) (#127303)

Added: 
    

Modified: 
    llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp

Removed: 
    


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diff  --git a/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp b/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
index d4e341a96f5b1..380a173c1d7ed 100644
--- a/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
@@ -635,11 +635,12 @@ void MachOPlatform::pushInitializersLoop(
       Worklist.pop_back();
 
       // If we've already visited this JITDylib on this iteration then continue.
-      if (JDDepMap.count(DepJD))
+      auto [It, Inserted] = JDDepMap.try_emplace(DepJD);
+      if (!Inserted)
         continue;
 
       // Add dep info.
-      auto &DM = JDDepMap[DepJD];
+      auto &DM = It->second;
       DepJD->withLinkOrderDo([&](const JITDylibSearchOrder &O) {
         for (auto &KV : O) {
           if (KV.first == DepJD)