[aarch64] Update xgene1 tuning struct.

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

	* config/aarch64/aarch64.c (xgene1_tunings): Optimize Xgene1 tunings
	for GCC 9.

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

From-SVN: r266414

gcc/ChangeLog

 2018-11-23  Christoph Muellner  <christoph.muellner@theobroma-systems.com>
 	    Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
 
+	* config/aarch64/aarch64.c (xgene1_tunings): Optimize Xgene1 tunings
+	for GCC 9.
 	* config/aarch64/aarch64.c (xgene1_tunings): Add Xgene1 specific
 	prefetch tunings.
 	* config/aarch64/aarch64.c (xgene1_addrcost_table): Correct the post-modify

gcc/config/aarch64/aarch64.c

@@ -944,14 +944,14 @@ static const struct tune_params xgene1_tunings =
   4, /* issue_rate  */
   AARCH64_FUSE_NOTHING, /* fusible_ops  */
   "16",	/* function_align.  */
-  "8",	/* jump_align.  */
+  "16",	/* jump_align.  */
   "16",	/* loop_align.  */
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
   1,	/* vec_reassoc_width.  */
   2,	/* min_div_recip_mul_sf.  */
   2,	/* min_div_recip_mul_df.  */
-  0,	/* max_case_values.  */
+  17,	/* max_case_values.  */
   tune_params::AUTOPREFETCHER_OFF,	/* autoprefetcher_model.  */
   (AARCH64_EXTRA_TUNE_NO_LDP_STP_QREGS),	/* tune_flags.  */
   &xgene1_prefetch_tune