[clang] [clang] Add support for cluster sync scope (PR #162575)

[Yaxun Liu via cfe-commits]

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@@ -313,33 +314,33 @@ void CodeGenFunction::ProcessOrderScopeAMDGCN(Value *Order, Value *Scope,
   }
 
   // Older builtins had an enum argument for the memory scope.
+  const char *ssn = nullptr;
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yxsamliu wrote:

variable name should be camel case https://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly

https://github.com/llvm/llvm-project/pull/162575