[clang] c38ef58 - [ByteCode] Avoid repeated hash lookups (NFC) (#132141)

[via cfe-commits]

Author: Kazu Hirata
Date: 2025-03-20T09:09:57-07:00
New Revision: c38ef58557e26394e330f6ba16ff71b492cf50bb

URL: https://github.com/llvm/llvm-project/commit/c38ef58557e26394e330f6ba16ff71b492cf50bb
DIFF: https://github.com/llvm/llvm-project/commit/c38ef58557e26394e330f6ba16ff71b492cf50bb.diff

LOG: [ByteCode] Avoid repeated hash lookups (NFC) (#132141)

Added: 
    

Modified: 
    clang/lib/AST/ByteCode/Program.cpp

Removed: 
    


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diff  --git a/clang/lib/AST/ByteCode/Program.cpp b/clang/lib/AST/ByteCode/Program.cpp
index c33d7fd7a2dc5..665e87bb5d2c8 100644
--- a/clang/lib/AST/ByteCode/Program.cpp
+++ b/clang/lib/AST/ByteCode/Program.cpp
@@ -213,12 +213,12 @@ std::optional<unsigned> Program::createGlobal(const ValueDecl *VD,
   if (auto Idx =
           createGlobal(VD, VD->getType(), IsStatic, IsExtern, IsWeak, Init)) {
     for (const Decl *P = VD; P; P = P->getPreviousDecl()) {
+      unsigned &PIdx = GlobalIndices[P];
       if (P != VD) {
-        unsigned PIdx = GlobalIndices[P];
         if (Globals[PIdx]->block()->isExtern())
           Globals[PIdx] = Globals[*Idx];
       }
-      GlobalIndices[P] = *Idx;
+      PIdx = *Idx;
     }
     return *Idx;
   }