Vitaly Buka 3386273936
IRMover: Proper fix of performance regression of #146020 (#157218)
In #157045 I didn't realize that IRMover object is
one for entire LTO, but IRLinker is created per
module. We need one chache for combined module.

I timed "IRLinker::linkNamedMDNodes" code on one
of our internal binaries, not very large, but
above average.

Before #146020: 0.4859s
After #146020: 624.4686s
After #157045: 322.3493s
After this patch: 0.5574s
2025-09-06 02:24:03 +00:00
..