[PATCH] D40725: Wasm entrypoint changes #3 (add --no-entry argument to LLD) APPLY AFTER D40559

[Nicholas Wilson via Phabricator via llvm-commits]

ncw updated this revision to Diff 125553.
ncw marked 3 inline comments as done.
ncw added a comment.

Feedback addressed.

- Added check to disallow using empty string with `--entry` and `--undefined`
- Got rid of use of null StringRef for Entry
- Switched Entry to an Optional so code expresses intent more clearly by checking `if (Config->Entry)` rather than `if (Config->Entry.empty())`


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D40725

Files:
  test/wasm/data-layout.ll
  wasm/Config.h
  wasm/Driver.cpp
  wasm/Options.td
  wasm/Writer.cpp

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