[llvm] db32924 - [HipStdPar] Avoid repeated hash lookups (NFC) (#112653)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-10-17T07:44:27-07:00
New Revision: db3292402565042dff9a2d5a147e023de6d82263

URL: https://github.com/llvm/llvm-project/commit/db3292402565042dff9a2d5a147e023de6d82263
DIFF: https://github.com/llvm/llvm-project/commit/db3292402565042dff9a2d5a147e023de6d82263.diff

LOG: [HipStdPar] Avoid repeated hash lookups (NFC) (#112653)

Added: 
    

Modified: 
    llvm/lib/Transforms/HipStdPar/HipStdPar.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/HipStdPar/HipStdPar.cpp b/llvm/lib/Transforms/HipStdPar/HipStdPar.cpp
index d740500ef1f8f6..b909bf5b2d7b61 100644
--- a/llvm/lib/Transforms/HipStdPar/HipStdPar.cpp
+++ b/llvm/lib/Transforms/HipStdPar/HipStdPar.cpp
@@ -86,15 +86,13 @@ static inline bool checkIfSupported(GlobalVariable &G) {
     auto U = std::move(Tmp.back());
     Tmp.pop_back();
 
-    if (Visited.contains(U))
+    if (!Visited.insert(U).second)
       continue;
 
     if (isa<Instruction>(U))
       I = cast<Instruction>(U);
     else
       Tmp.insert(Tmp.end(), U->user_begin(), U->user_end());
-
-    Visited.insert(U);
   } while (!I && !Tmp.empty());
 
   assert(I && "thread_local global should have at least one non-constant use.");