[llvm] 11c6ea3 - [ExecutionEngine] Avoid repeated hash lookups (NFC) (#111275)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-10-06T09:22:27-07:00
New Revision: 11c6ea3d3bd59c548562425f0de1fcef1b4660dc

URL: https://github.com/llvm/llvm-project/commit/11c6ea3d3bd59c548562425f0de1fcef1b4660dc
DIFF: https://github.com/llvm/llvm-project/commit/11c6ea3d3bd59c548562425f0de1fcef1b4660dc.diff

LOG: [ExecutionEngine] Avoid repeated hash lookups (NFC) (#111275)

Added: 
    

Modified: 
    llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp

Removed: 
    


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diff  --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index 92f37c22ae5132..25b76c7668350b 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -1610,13 +1610,10 @@ RuntimeDyldELF::processRelocationRef(
     RelocationEntry RE(SectionID, Offset, RelType, Value.Addend);
     if (r_type == ELF::R_MIPS_CALL16 || r_type == ELF::R_MIPS_GOT_PAGE
         || r_type == ELF::R_MIPS_GOT_DISP) {
-      StringMap<uint64_t>::iterator i = GOTSymbolOffsets.find(TargetName);
-      if (i != GOTSymbolOffsets.end())
-        RE.SymOffset = i->second;
-      else {
-        RE.SymOffset = allocateGOTEntries(1);
-        GOTSymbolOffsets[TargetName] = RE.SymOffset;
-      }
+      auto [I, Inserted] = GOTSymbolOffsets.try_emplace(TargetName);
+      if (Inserted)
+        I->second = allocateGOTEntries(1);
+      RE.SymOffset = I->second;
       if (Value.SymbolName)
         addRelocationForSymbol(RE, Value.SymbolName);
       else