[PATCH] D123484: [WebAssembly] Implement ref.is_null MC layer support and codegen

[Heejin Ahn via Phabricator via llvm-commits]

aheejin added inline comments.


================
Comment at: llvm/lib/Target/WebAssembly/WebAssemblyInstrRef.td:30-32
+  // Define register variants of ref.is_null for each reference type. A
+  // single stack variant of the instruction is defined later.
+  let isCodeGenOnly = 1 in
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Why should the stack version and the non-stack version separately? Doesn't `I` provide a template to define both at the same time? Maybe I'm not familiar with the context.

Also why is this `isCodeGenOnly`?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123484/new/

https://reviews.llvm.org/D123484