[PATCH] [AArch64] Override useAA and remove unneeded edges in the scheduling graph. (Phabricator)

[Sanjin Sijaric]

Thanks, Hal.  We saw some improvements on an in-order cortex-a53 device, but didn't observe performance improvements on an out-of-order cortex-a57 device.  We also didn't observe significant compile time degradations when compiling spec2006 with -Ofast.

http://reviews.llvm.org/D5103