[Webkit-unassigned] [Bug 220137] Failures of attribute location conformance tests with Metal backend

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220137

--- Comment #5 from Kyle Piddington <kpiddington at apple.com> ---
> What happens if a given attribute wasn't assigned a location via glBindAttribLocation? Would the " __unassigned_attribute__" strings cause MSL compilation failures?

Any active attribute should get a location, even if they aren't specifically bound. This is handled in the linkAttributes() (See Program.cpp) step in the Angle frontend.

Any non-active attributes should be optimized out, but if something went wrong, we would have a compilation failure.

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