[clang] [CodeGen] Avoid repeated hash lookup (NFC) (PR #108735)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/108735.diff


1 Files Affected:

- (modified) clang/lib/CodeGen/CGOpenMPRuntime.cpp (+1-6) 


``````````diff
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index 807f9881f53f40..7a94c4d522d0c3 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -7815,12 +7815,7 @@ class MappableExprsHandler {
             const Expr *VarRef = nullptr, bool ForDeviceAddr = false) {
           if (SkipVarSet.contains(D))
             return;
-          auto It = Info.find(D);
-          if (It == Info.end())
-            It = Info
-                     .insert(std::make_pair(
-                         D, SmallVector<SmallVector<MapInfo, 8>, 4>(Total)))
-                     .first;
+          auto It = Info.try_emplace(D, Total).first;
           It->second[Kind].emplace_back(
               L, MapType, MapModifiers, MotionModifiers, ReturnDevicePointer,
               IsImplicit, Mapper, VarRef, ForDeviceAddr);

``````````

</details>


https://github.com/llvm/llvm-project/pull/108735