[lld] [llvm] [WebAssembly] Add exnref type (PR #93586)

[Derek Schuff via llvm-commits]

================
@@ -4,22 +4,27 @@
 # CHECK-LABEL:ref_is_null:
 # CHECK: ref.is_null     # encoding: [0xd1]
 ref_is_null:
-  .functype ref_is_null () -> (i32, i32)
+  .functype ref_is_null () -> (i32, i32, i32)
   ref.null_extern
   ref.is_null
   ref.null_func
   ref.is_null
+  ref.null_exn
+  ref.is_null
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dschuff wrote:

I don't see any CHECK expectations for this (or for null func). I assume this is just because it's sufficient to check the encoding once and the rest is to make sure the type check passes?

https://github.com/llvm/llvm-project/pull/93586