[PATCH] D37966: [TableGen] Generate formatted DAGISelEmitter without relying on formatted_raw_ostream.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

As noted by @zturner on PR28222:

> Here's some numbers from my work machine:
> 
> Before r313271: 11.46s
> After r313271: 38.32s
> After r313271 + https://reviews.llvm.org/D37957: 20.62s
> After r313271 + https://reviews.llvm.org/D37966: 33.61s


https://reviews.llvm.org/D37966