From e94bf3e1ad12211ec037c9e04a1698e1ed16c87a Mon Sep 17 00:00:00 2001 From: Mingchuan Wu Date: Tue, 3 Dec 2024 21:02:39 +0800 Subject: [PATCH 8/8] [bugfix] Modify the hip09 tune flags. --- gcc/config/aarch64/aarch64-tuning-flags.def | 3 +++ gcc/config/aarch64/aarch64.cc | 11 +++++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/gcc/config/aarch64/aarch64-tuning-flags.def b/gcc/config/aarch64/aarch64-tuning-flags.def index b4a8f99a6..293f6fb7e 100644 --- a/gcc/config/aarch64/aarch64-tuning-flags.def +++ b/gcc/config/aarch64/aarch64-tuning-flags.def @@ -49,6 +49,9 @@ AARCH64_EXTRA_TUNING_OPTION ("no_ldp_combine", NO_LDP_COMBINE) AARCH64_EXTRA_TUNING_OPTION ("rename_load_regs", RENAME_LOAD_REGS) +/* Prefer Advanced SIMD over SVE for auto-vectorization. */ +AARCH64_EXTRA_TUNING_OPTION ("prefer_advsimd_autovec", PREFER_ADVSIMD_AUTOVEC) + AARCH64_EXTRA_TUNING_OPTION ("cse_sve_vl_constants", CSE_SVE_VL_CONSTANTS) AARCH64_EXTRA_TUNING_OPTION ("use_new_vector_costs", USE_NEW_VECTOR_COSTS) diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index 1d479f270..829e0da8f 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -1934,8 +1934,7 @@ static const struct tune_params hip09_tunings = 2, /* min_div_recip_mul_df. */ 0, /* max_case_values. */ tune_params::AUTOPREFETCHER_WEAK, /* autoprefetcher_model. */ - (AARCH64_EXTRA_TUNE_USE_NEW_VECTOR_COSTS - | AARCH64_EXTRA_TUNE_MATCHED_VECTOR_THROUGHPUT), /* tune_flags. */ + (AARCH64_EXTRA_TUNE_PREFER_ADVSIMD_AUTOVEC), /* tune_flags. */ &hip09_prefetch_tune }; @@ -20250,6 +20249,14 @@ aarch64_override_options_internal (struct gcc_options *opts) SET_OPTION_IF_UNSET (opts, &global_options_set, param_sched_autopref_queue_depth, queue_depth); + /* If the core wants only AdvancedSIMD autovectorization, do this through + aarch64_autovec_preference. If the user set it explicitly, they should + know what they want. */ + if (aarch64_tune_params.extra_tuning_flags + & AARCH64_EXTRA_TUNE_PREFER_ADVSIMD_AUTOVEC) + SET_OPTION_IF_UNSET (opts, &global_options_set, + aarch64_autovec_preference, 1); + /* If using Advanced SIMD only for autovectorization disable SVE vector costs comparison. */ if (aarch64_autovec_preference == 1) -- 2.33.0