57 lines
2.4 KiB
Diff
57 lines
2.4 KiB
Diff
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From e94bf3e1ad12211ec037c9e04a1698e1ed16c87a Mon Sep 17 00:00:00 2001
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From: Mingchuan Wu <wumingchuan1992@foxmail.com>
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Date: Tue, 3 Dec 2024 21:02:39 +0800
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Subject: [PATCH 8/8] [bugfix] Modify the hip09 tune flags.
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---
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gcc/config/aarch64/aarch64-tuning-flags.def | 3 +++
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gcc/config/aarch64/aarch64.cc | 11 +++++++++--
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2 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/gcc/config/aarch64/aarch64-tuning-flags.def b/gcc/config/aarch64/aarch64-tuning-flags.def
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index b4a8f99a6..293f6fb7e 100644
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--- a/gcc/config/aarch64/aarch64-tuning-flags.def
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+++ b/gcc/config/aarch64/aarch64-tuning-flags.def
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@@ -49,6 +49,9 @@ AARCH64_EXTRA_TUNING_OPTION ("no_ldp_combine", NO_LDP_COMBINE)
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AARCH64_EXTRA_TUNING_OPTION ("rename_load_regs", RENAME_LOAD_REGS)
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+/* Prefer Advanced SIMD over SVE for auto-vectorization. */
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+AARCH64_EXTRA_TUNING_OPTION ("prefer_advsimd_autovec", PREFER_ADVSIMD_AUTOVEC)
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+
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AARCH64_EXTRA_TUNING_OPTION ("cse_sve_vl_constants", CSE_SVE_VL_CONSTANTS)
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AARCH64_EXTRA_TUNING_OPTION ("use_new_vector_costs", USE_NEW_VECTOR_COSTS)
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diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
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index 1d479f270..829e0da8f 100644
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--- a/gcc/config/aarch64/aarch64.cc
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+++ b/gcc/config/aarch64/aarch64.cc
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@@ -1934,8 +1934,7 @@ static const struct tune_params hip09_tunings =
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2, /* min_div_recip_mul_df. */
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0, /* max_case_values. */
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tune_params::AUTOPREFETCHER_WEAK, /* autoprefetcher_model. */
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- (AARCH64_EXTRA_TUNE_USE_NEW_VECTOR_COSTS
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- | AARCH64_EXTRA_TUNE_MATCHED_VECTOR_THROUGHPUT), /* tune_flags. */
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+ (AARCH64_EXTRA_TUNE_PREFER_ADVSIMD_AUTOVEC), /* tune_flags. */
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&hip09_prefetch_tune
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};
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@@ -20250,6 +20249,14 @@ aarch64_override_options_internal (struct gcc_options *opts)
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SET_OPTION_IF_UNSET (opts, &global_options_set,
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param_sched_autopref_queue_depth, queue_depth);
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+ /* If the core wants only AdvancedSIMD autovectorization, do this through
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+ aarch64_autovec_preference. If the user set it explicitly, they should
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+ know what they want. */
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+ if (aarch64_tune_params.extra_tuning_flags
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+ & AARCH64_EXTRA_TUNE_PREFER_ADVSIMD_AUTOVEC)
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+ SET_OPTION_IF_UNSET (opts, &global_options_set,
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+ aarch64_autovec_preference, 1);
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+
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/* If using Advanced SIMD only for autovectorization disable SVE vector costs
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comparison. */
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if (aarch64_autovec_preference == 1)
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--
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2.33.0
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