1115330 - [AWFY] 3.7% regression on AWFY-Octane-EarlyBoyer on machine 28

Status: RESOLVED DUPLICATE of bug 1136898

(Core :: JavaScript Engine: JIT, defect)

Description

[Benjamin Bouvier [:bbouvier] (inactive)]

http://arewefastyet.com/#machine=28&view=single&suite=octane&subtest=EarleyBoyer&start=1419362897&end=1419377165

http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=145cfaf3c177&tochange=2f90deb1be15

Changelog includes:
- bug 1113445, which is about SIMD => very unclear how this could ever be the cause.
- secured bug 1096138, which could be the cause, as it adds instructions in the MIR graph and could slow down compilation.

This bug is open for tracking and know whether there's something to do about this regression or not.