We should take a look, if we are able to get our FFI calls inlined, that'd be a win in runtime performance, as well as possibly in code size (though a lighter one arguably).
Emilio, do we need to do anything to enable LTO for Stylo code? Or is this bug just about verifying the current output of LTO code?
No longer blocks: 1243581
Well, this was about being able to inline FFI calls, which AIUI is just not possible with MSVC, and would be a significant effort building FF with clang. So there's a bunch of work to do here if we want to make this doable, but we figured out other solutions at the potential perf issues that we were facing a year ago. Still would be nice, of course.
status-firefox57=wontfix unless someone thinks this bug should block 57
status-firefox57: --- → wontfix
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