[llvm] [CodeGen] Declare command line options in TableGen (PR #228729)

[Alexis Engelke via llvm-commits]

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@@ -0,0 +1,200 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+include "llvm/Option/LibraryOptions.td"
+
+def CodeGenOptions : OptionsStruct;
+
+defm : BoolField<"addr-sink-combine-base-gv", "true",
+  "Allow combining of BaseGV field in Address sinking">;
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aengelke wrote:

Maybe as a future cleanup: All CodeGenPrepare options should begin with cgp-?

Not sure if alphabetical sorting is the best in the absence of consistent prefixes.

https://github.com/llvm/llvm-project/pull/228729