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r242385 - in /trunk/gcc: ChangeLog config/arm/c...
- From: wilco at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 14 Nov 2016 12:07:03 -0000
- Subject: r242385 - in /trunk/gcc: ChangeLog config/arm/c...
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