For example, we may emit code that only reaches such a stack load conditionally. It's natural to emit such code. This happens in the case of GetMyArgumentByVal, which will branch on the argument count before issuing a load.
<rdar://problem/37749988>
Created attachment 334482 [details] patch
Comment on attachment 334482 [details] patch r=me
Comment on attachment 334482 [details] patch Clearing flags on attachment: 334482 Committed r229036: <https://trac.webkit.org/changeset/229036>
All reviewed patches have been landed. Closing bug.