[llvm] c1888a3 - [AsmParser] Avoid instantiating LLVMContext if not needed. NFC

[Yevgeny Rouban via llvm-commits]

Author: Yevgeny Rouban
Date: 2023-03-20T14:56:57+07:00
New Revision: c1888a370ada6e76d51cdb9c6eeefa2588a475eb

URL: https://github.com/llvm/llvm-project/commit/c1888a370ada6e76d51cdb9c6eeefa2588a475eb
DIFF: https://github.com/llvm/llvm-project/commit/c1888a370ada6e76d51cdb9c6eeefa2588a475eb.diff

LOG: [AsmParser] Avoid instantiating LLVMContext if not needed. NFC

Differential Revision: https://reviews.llvm.org/D142699

Added: 
    

Modified: 
    llvm/lib/AsmParser/Parser.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/AsmParser/Parser.cpp b/llvm/lib/AsmParser/Parser.cpp
index 035eea81378e5..eded892f358a8 100644
--- a/llvm/lib/AsmParser/Parser.cpp
+++ b/llvm/lib/AsmParser/Parser.cpp
@@ -28,9 +28,9 @@ static bool parseAssemblyInto(MemoryBufferRef F, Module *M,
   std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
   SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
 
-  LLVMContext Context;
+  std::optional<LLVMContext> OptContext;
   return LLParser(F.getBuffer(), SM, Err, M, Index,
-                  M ? M->getContext() : Context, Slots)
+                  M ? M->getContext() : OptContext.emplace(), Slots)
       .Run(UpgradeDebugInfo, DataLayoutCallback);
 }