[clang] ba7a0b7 - [Frontend] Avoid repeated hash lookups (NFC) (#108738)

[via cfe-commits]

Author: Kazu Hirata
Date: 2024-09-15T01:21:00-07:00
New Revision: ba7a0b725c67e9c3a31f5ffedb6fbe4c5237ac56

URL: https://github.com/llvm/llvm-project/commit/ba7a0b725c67e9c3a31f5ffedb6fbe4c5237ac56
DIFF: https://github.com/llvm/llvm-project/commit/ba7a0b725c67e9c3a31f5ffedb6fbe4c5237ac56.diff

LOG: [Frontend] Avoid repeated hash lookups (NFC) (#108738)

Added: 
    

Modified: 
    clang/lib/Frontend/Rewrite/RewriteObjC.cpp

Removed: 
    


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diff  --git a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
index 9db6ddbf0b8908..fd5e8dc5298950 100644
--- a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
@@ -4111,9 +4111,8 @@ void RewriteObjC::RewriteBlockPointerDecl(NamedDecl *ND) {
 std::string RewriteObjC::SynthesizeByrefCopyDestroyHelper(VarDecl *VD,
                                                           int flag) {
   std::string S;
-  if (CopyDestroyCache.count(flag))
+  if (!CopyDestroyCache.insert(flag).second)
     return S;
-  CopyDestroyCache.insert(flag);
   S = "static void __Block_byref_id_object_copy_";
   S += utostr(flag);
   S += "(void *dst, void *src) {\n";