[PATCH] Devirtualize MCFragment

Pete Cooper peter_cooper at apple.com
Tue Jun 16 17:32:24 PDT 2015

Hey Rafael

This patch packs and devirtualizes MCFragment so that the layout is better organised in memory.

I measured it on the verify use list order test going through llc and it saved about 2MB of memory out of 800MB.  Not a huge amount, but in an LTO build I still expect it to be useful.

Comments welcome.


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