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[RFA/ARM] Revert r183011: Cortex-A15 branch costs


The attached patch reverts revision 183011, which changed the branch
cost heuristics for Cortex-A15.

This is because further benchmarking shows that there are significant
regressions on some benchmarks which outweigh other performance gains.

OK?

Thanks,

Matt

gcc/ChangeLog:

2012-02-21  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	Revert r183011
	* config/arm/arm-cores.def (cortex-a15): Use generic Cortex tuning
	parameters.
	* config/arm/arm.c (arm_cortex_a15_tune): Remove.
-- 
Matthew Gretton-Dann
Principal Engineer, PD Software, ARM Ltd.

Attachment: 1-RFA-ARM-Revert-r183011-Cortex-A15-branch-costs.txt
Description: Text document


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