[PATCH] D111101: [lld][WebAssembly] Remove redundant check for undefined global (NFC)

[Sam Clegg via Phabricator via llvm-commits]

sbc100 added a comment.

we return `true` uncondition



================
Comment at: lld/wasm/Relocations.cpp:45
-    if (g->importName)
-      return true;
   return config->allowUndefinedSymbols.count(sym->getName()) != 0;
----------------
aheejin wrote:
> sbc100 wrote:
> > Actually there was a recent refactor that made `importName` a (optional) member of the Symbol superclass.. so I think this can be written as:
> > 
> > ```
> > if (sym->importName)
> >   return true;
> > if (isa<UndefinedFunction>(sym) && config->importUndefined)
> >   return true;
> > ```
> > 
> > But if you would rather land this as is that is fine too.
> > if (isa<UndefinedFunction>(sym) && config->importUndefined)
> 
> Isn't this `||` in the current code?
> 
> Also, if we return `true` unconditionally when `sym->importName` is defined, I think we return `true` for data or tables. Is that what you intended?
Yes, any symbol with an explicit `importName` should always be imported and never have "undefined symbol" reported about it.


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  https://reviews.llvm.org/D111101/new/

https://reviews.llvm.org/D111101