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Pass -Oz/-Os along to the backend

Authored by paquette on Apr 20 2018, 6:55 PM.



This is dependent on (Enable MachineOutliner by default under -Oz for AArch64).

This patch teaches clang to pass along size optimization information along to the backend to facilitate use of the MachineOutliner.

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paquette created this revision.Apr 20 2018, 6:55 PM
paquette updated this revision to Diff 143584.Apr 23 2018, 9:49 AM

Add context to diff.

paquette abandoned this revision.Apr 26 2018, 10:48 AM

We decided it'd be better to just use function attributes for the outliner, so I'm abandoning this.