r242385 - in /trunk/gcc: ChangeLog config/arm/c...

[wilco@gcc.gnu.org]

Author: wilco
Date: Mon Nov 14 12:07:03 2016
New Revision: 242385

URL: https://gcc.gnu.org/viewcvs?rev=242385&root=gcc&view=rev
Log:
The second patch updates the Cortex-A57 scheduler now that we can differentiate
between shifts and bitfield inserts.  The Cortex-A57 Software Optimization Guide
indicates that BFM operations use the integer multi-cycle pipeline, while ARM
UXTB/H instructions use the Integer 1 or Integer 0 pipelines, so swap the bfm
and extend reservations.  This results in minor scheduling differences.

	* config/arm/cortex-a57.md (cortex_a57_alu): Move extend here, bfm...
	(cortex_a57_alu_shift): ...here.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/cortex-a57.md