[clang] Add clang atomic control options and attribute (PR #114841)

[Yaxun Liu via cfe-commits]

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@@ -2355,6 +2355,14 @@ def fsymbol_partition_EQ : Joined<["-"], "fsymbol-partition=">, Group<f_Group>,
   Visibility<[ClangOption, CC1Option]>,
   MarshallingInfoString<CodeGenOpts<"SymbolPartition">>;
 
+def fatomic_EQ : CommaJoined<["-"], "fatomic=">, Group<f_Group>,
+  Visibility<[ClangOption, CC1Option]>,
+  HelpText<"Specify atomic codegen options as a comma-separated list of "
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yxsamliu wrote:

will do

https://github.com/llvm/llvm-project/pull/114841