[clang] [Sema] Avoid repeated hash lookups (NFC) (PR #110951)

[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/110951.diff


1 Files Affected:

- (modified) clang/lib/Sema/JumpDiagnostics.cpp (+1-2) 


``````````diff
diff --git a/clang/lib/Sema/JumpDiagnostics.cpp b/clang/lib/Sema/JumpDiagnostics.cpp
index 8af36d5c24e3d2..00fdffca4e9ea9 100644
--- a/clang/lib/Sema/JumpDiagnostics.cpp
+++ b/clang/lib/Sema/JumpDiagnostics.cpp
@@ -761,8 +761,7 @@ void JumpScopeChecker::VerifyIndirectJumps() {
       if (CHECK_PERMISSIVE(!LabelAndGotoScopes.count(IG)))
         continue;
       unsigned IGScope = LabelAndGotoScopes[IG];
-      if (!JumpScopesMap.contains(IGScope))
-        JumpScopesMap[IGScope] = IG;
+      JumpScopesMap.try_emplace(IGScope, IG);
     }
     JumpScopes.reserve(JumpScopesMap.size());
     for (auto &Pair : JumpScopesMap)

``````````

</details>


https://github.com/llvm/llvm-project/pull/110951