[aarch64] Add xgene1 prefetch tunings.

2018-11-23  Christoph Muellner  <christoph.muellner@theobroma-systems.com>
            Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

	* config/aarch64/aarch64.c (xgene1_tunings): Add Xgene1 specific
	prefetch tunings.

Co-Authored-By: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
From-SVN: r266413

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd8d3f9..99538f7 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,8 @@
 2018-11-23  Christoph Muellner  <christoph.muellner@theobroma-systems.com>
            Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
 
+       * config/aarch64/aarch64.c (xgene1_tunings): Add Xgene1 specific
+       prefetch tunings.
        * config/aarch64/aarch64.c (xgene1_addrcost_table): Correct the post-modify
        costs.
        * config/arm/aarch-cost-tables.h (xgene1_extra_costs): Update the cost table

diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 598ea79..7375e06 100644 (file)
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -662,6 +662,17 @@ static const cpu_prefetch_tune tsv110_prefetch_tune =
   -1                    /* default_opt_level  */
 };
 
+static const cpu_prefetch_tune xgene1_prefetch_tune =
+{
+  8,                   /* num_slots  */
+  32,                  /* l1_cache_size  */
+  64,                  /* l1_cache_line_size  */
+  256,                 /* l2_cache_size  */
+  true,                 /* prefetch_dynamic_strides */
+  -1,                   /* minimum_stride */
+  -1                   /* default_opt_level  */
+};
+
 static const struct tune_params generic_tunings =
 {
   &cortexa57_extra_costs,
@@ -943,7 +954,7 @@ static const struct tune_params xgene1_tunings =
   0,   /* max_case_values.  */
   tune_params::AUTOPREFETCHER_OFF,     /* autoprefetcher_model.  */
   (AARCH64_EXTRA_TUNE_NO_LDP_STP_QREGS),       /* tune_flags.  */
-  &generic_prefetch_tune
+  &xgene1_prefetch_tune
 };
 
 static const struct tune_params qdf24xx_tunings =