[PATCH] D86215: [TableGen][GlobalISel] Fix handling of zero_reg

[Gabriel Hjort Åkerlund via Phabricator via llvm-commits]

ehjogab added inline comments.


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Comment at: llvm/utils/TableGen/GlobalISelEmitter.cpp:2656
+      Table << MatchTable::Comment("zero_reg");
+      Table << MatchTable::IntValue(0);
+    }
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arsenm wrote:
> Could this use TargetNamespace::NoRegister?
I suppose that works. I checked for our target and NoRegister is indeed assigned value 0, so the semantics would be the same. But I am not sure whether that would work for all targets. If it does, I do believe your suggestion to be a better solution than to simply output value 0. Perhaps someone more knowledgeable regarding TableGen could comment on this?


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  https://reviews.llvm.org/D86215/new/

https://reviews.llvm.org/D86215