[aarch64] Add Qualcomm saphira CPU support.

This patch adds an mcpu option for the Qualcomm saphira server part.
Tested on aarch64 and did not find any regressions resulting from this
patch.

2017-11-03  Siddhesh Poyarekar  <siddhesh.poyarekar@linaro.org>
	    Jim Wilson  <jim.wilson@linaro.org>

	* config/aarch64/aarch64-cores.def (saphira): New CPU.
	* config/aarch64/aarch64-tune.md: Regenerated.
	* doc/invoke.texi (AArch64 Options/-mtune): Add "saphira".
	* gcc/config/aarch64/aarch64.c (saphira_tunings): New tuning table.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@254372 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 43 insertions, 2 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3926d414b3a..ced4dd347e7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2017-11-03  Siddhesh Poyarekar  <siddhesh.poyarekar@linaro.org>
+	    Jim Wilson  <jim.wilson@linaro.org>
+
+	* config/aarch64/aarch64-cores.def (saphira): New CPU.
+	* config/aarch64/aarch64-tune.md: Regenerated.
+	* doc/invoke.texi (AArch64 Options/-mtune): Add "saphira".
+	* gcc/config/aarch64/aarch64.c (saphira_tunings): New tuning table.
+
 2017-11-03  Cupertino Miranda  <cmiranda@synopsys.com>
 
 	* config/arc/arc.c (arc_save_restore): Corrected CFA note.
diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
index 16e44855872..cdf047c0fa2 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -86,6 +86,11 @@ AARCH64_CORE("thunderx2t99",  thunderx2t99,  thunderx2t99, 8_1A,  AARCH64_FL_FOR
 AARCH64_CORE("cortex-a55",  cortexa55, cortexa53, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa53, 0x41, 0xd05, -1)
 AARCH64_CORE("cortex-a75",  cortexa75, cortexa57, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa73, 0x41, 0xd0a, -1)
 
+/* ARMv8.3-A Architecture Processors.  */
+
+/* Qualcomm ('Q') cores. */
+AARCH64_CORE("saphira",     saphira,    falkor,    8_3A,  AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_CRYPTO | AARCH64_FL_RCPC, saphira,   0x51, 0xC01, -1)
+
 /* ARMv8-A big.LITTLE implementations.  */
 
 AARCH64_CORE("cortex-a57.cortex-a53",  cortexa57cortexa53, cortexa53, 8A,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa57, 0x41, AARCH64_BIG_LITTLE (0xd07, 0xd03), -1)
diff --git a/gcc/config/aarch64/aarch64-tune.md b/gcc/config/aarch64/aarch64-tune.md
index 7fcd6cb2c2e..7b3a7460561 100644
--- a/gcc/config/aarch64/aarch64-tune.md
+++ b/gcc/config/aarch64/aarch64-tune.md
@@ -1,5 +1,5 @@
 ;; -*- buffer-read-only: t -*-
 ;; Generated automatically by gentune.sh from aarch64-cores.def
 (define_attr "tune"
-	"cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,xgene1,falkor,qdf24xx,exynosm1,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55"
+	"cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,xgene1,falkor,qdf24xx,exynosm1,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55"
 	(const (symbol_ref "((enum attr_tune) aarch64_tune)")))
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 351974ac39d..eb2d5f8ad45 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -822,6 +822,34 @@ static const struct tune_params qdf24xx_tunings =
   &qdf24xx_prefetch_tune
 };
 
+/* Tuning structure for the Qualcomm Saphira core.  Default to falkor values
+   for now.  */
+static const struct tune_params saphira_tunings =
+{
+  &generic_extra_costs,
+  &generic_addrcost_table,
+  &generic_regmove_cost,
+  &generic_vector_cost,
+  &generic_branch_cost,
+  &generic_approx_modes,
+  4, /* memmov_cost  */
+  4, /* issue_rate  */
+  (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD
+   | AARCH64_FUSE_MOVK_MOVK), /* fuseable_ops  */
+  16,	/* function_align.  */
+  8,	/* 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.  */
+  tune_params::AUTOPREFETCHER_WEAK,	/* autoprefetcher_model.  */
+  (AARCH64_EXTRA_TUNE_NONE),		/* tune_flags.  */
+  &generic_prefetch_tune
+};
+
 static const struct tune_params thunderx2t99_tunings =
 {
   &thunderx2t99_extra_costs,
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index e47a0e32b77..2ef88e081f9 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14339,7 +14339,7 @@ Specify the name of the target processor for which GCC should tune the
 performance of the code.  Permissible values for this option are:
 @samp{generic}, @samp{cortex-a35}, @samp{cortex-a53}, @samp{cortex-a55},
 @samp{cortex-a57}, @samp{cortex-a72}, @samp{cortex-a73}, @samp{cortex-a75},
-@samp{exynos-m1}, @samp{falkor}, @samp{qdf24xx},
+@samp{exynos-m1}, @samp{falkor}, @samp{qdf24xx}, @samp{saphira},
 @samp{xgene1}, @samp{vulcan}, @samp{thunderx},
 @samp{thunderxt88}, @samp{thunderxt88p1}, @samp{thunderxt81},
 @samp{thunderxt83}, @samp{thunderx2t99}, @samp{cortex-a57.cortex-a53},