1945012 - [hazards] Upgrade gcc past gcc9

Status: NEW

(Core :: JavaScript: GC, task, P2)

Description

[Steve Fink [:sfink] [:s:]]

I've seen one thing now that requires gcc > 9 (bug 1601843). It seems time to consider an update.

Comment 1

[Mike Hommey [:glandium]]

Baseline gcc is version 8 at the moment. That's not only hazard builds, that's overall.

Comment 2

[Mike Hommey [:glandium]]

That being said, hazard builds being stuck to gcc 9 is hindering future updates to that baseline.

Comment 3

[Steve Fink [:sfink] [:s:]]

Initial explorations: gcc 11 seems to disentangle loops differently, causing some tests to fail (but the new output still seems correct when manually inspected.)

Analyzing all of SpiderMonkey appears to succeed. Analyzing all of Gecko crashes, which is the usual symptom when the data structure presented to the gcc plugin changes. I haven't looked at it in detail, but at least gcc 9 -> 11 isn't a completely trivial update.