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1. Allow reassociation on FP additions. 2. Avoid generating loop-dependant FMA chains. Added a tuning option 'AARCH64_EXTRA_TUNE_AVOID_CROSS_LOOP_FMA' for this. gcc/ChangeLog: * config/aarch64/aarch64-tuning-flags.def (AARCH64_EXTRA_TUNING_OPTION): New tuning option to avoid cross-loop FMA. * config/aarch64/aarch64.cc (aarch64_override_options_internal): Set param_avoid_fma_max_bits according to tuning option. * config/aarch64/tuning_models/ampere1.h (ampere1_tunings): Modify tunings related with FMA. * config/aarch64/tuning_models/ampere1a.h (ampere1a_tunings): Likewise. * config/aarch64/tuning_models/ampere1b.h (ampere1b_tunings): Likewise. |
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