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authorClaudiu Zissulescu <claziss@gmail.com>2022-07-18 15:07:00 +0300
committerClaudiu Zissulescu <claziss@gmail.com>2022-07-18 15:45:20 +0300
commit7501eec65c60701f72621d04eeb5342bad2fe4fb (patch)
treee8c98397915d2217a334ad84a1479c9670013376 /config
parent87f46a16ec05beb51439f55a4d3c36d64b95b00f (diff)
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arc: Add ARCHS release 310a tune variant.
Add mtune and mcpu options for ARCHS release 310a type CPU. The mtune=release31a is designed to be used as an alternative to the mcpu=hs4x_rel31 option. ARCHS4x release 31a uses DSP instructions which are implemented a bit different than mpy9. Hence, use safer mpy2 option. gcc/ * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_ARCHS4X_REL31A variant. * config/arc/arc.cc (arc_override_options): Tune options for release 310a. (arc_sched_issue_rate): Use correct enum. (arc600_corereg_hazard): Textual change. (arc_hazard): Add release 310a tunning. * config/arc/arc.md (tune): Update and take into consideration new tune option. (tune_dspmpy): Likewise. (tune_store): New attribute. * config/arc/arc.opt (mtune): New tune option. * config/arc/arcHS4x.md (hs4x_brcc0, hs4x_brcc1): New cpu units. (hs4x_brcc_op): New instruction rezervation. (hs4x_data_store_1_op): Likewise. * config/arc/arc-cpus.def (hs4x_rel31): New cpu variant. * config/arc/arc-tables.opt: Regenerate. * config/arc/t-multilib: Likewise. * doc/invoke.texi (ARC): Update mcpu and tune sections. Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
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