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[PATCH] [AArch64, Falkor] Switch to using Falkor-specific vector costs


The adjusted vector costs give Falkor a reasonable boost in performance for FP
benchmarks (both CPU2017 and CPU2006) and doesn't change INT benchmarks that
much. About 0.7% for CPU2017 FP and 1.54% for CPU2006 FP.

OK for trunk?

gcc/ChangeLog:

2018-07-25  Luis Machado  <luis.machado@linaro.org>

	* config/aarch64/aarch64.c (qdf24xx_vector_cost): New.
	(qdf24xx_tunings) <vec_costs>: Set to qdf24xx_vector_cost.
---
 gcc/config/aarch64/aarch64.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index fa01475..d443aee 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -430,6 +430,26 @@ static const struct cpu_vector_cost generic_vector_cost =
   1 /* cond_not_taken_branch_cost  */
 };
 
+/* Qualcomm QDF24xx costs for vector insn classes.  */
+static const struct cpu_vector_cost qdf24xx_vector_cost =
+{
+  1, /* scalar_int_stmt_cost  */
+  1, /* scalar_fp_stmt_cost  */
+  1, /* scalar_load_cost  */
+  1, /* scalar_store_cost  */
+  1, /* vec_int_stmt_cost  */
+  3, /* vec_fp_stmt_cost  */
+  2, /* vec_permute_cost  */
+  1, /* vec_to_scalar_cost  */
+  1, /* scalar_to_vec_cost  */
+  1, /* vec_align_load_cost  */
+  1, /* vec_unalign_load_cost  */
+  1, /* vec_unalign_store_cost  */
+  1, /* vec_store_cost  */
+  3, /* cond_taken_branch_cost  */
+  1  /* cond_not_taken_branch_cost  */
+};
+
 /* ThunderX costs for vector insn classes.  */
 static const struct cpu_vector_cost thunderx_vector_cost =
 {
@@ -890,7 +910,7 @@ static const struct tune_params qdf24xx_tunings =
   &qdf24xx_extra_costs,
   &qdf24xx_addrcost_table,
   &qdf24xx_regmove_cost,
-  &generic_vector_cost,
+  &qdf24xx_vector_cost,
   &generic_branch_cost,
   &generic_approx_modes,
   4, /* memmov_cost  */
-- 
2.7.4


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