[TableGen] Avoid repeated map lookups (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/108675.diff

1 Files Affected:

• (modified) clang/utils/TableGen/NeonEmitter.cpp (+1-3)

diff --git a/clang/utils/TableGen/NeonEmitter.cpp b/clang/utils/TableGen/NeonEmitter.cpp
index 9e5480be20adac..82148f98d04fcc 100644
--- a/clang/utils/TableGen/NeonEmitter.cpp
+++ b/clang/utils/TableGen/NeonEmitter.cpp
@@ -2155,9 +2155,7 @@ void NeonEmitter::genOverloadTypeCheckCode(raw_ostream &OS,
     }
 
     if (Mask) {
-      std::string Name = Def->getMangledName();
-      OverloadMap.insert(std::make_pair(Name, OverloadInfo()));
-      OverloadInfo &OI = OverloadMap[Name];
+      OverloadInfo &OI = OverloadMap[Def->getMangledName()];
       OI.Mask |= Mask;
       OI.PtrArgNum |= PtrArgNum;
       OI.HasConstPtr = HasConstPtr;