add option for the Samsung Exynos M1 core for AArch64

	* doc/invoke.texi (AARCH64/mtune): Add exynos-m1 as an option.
	* config/aarch64/aarch64-cores.def (exynos-m1): New core.
	* config/aarch64/aarch64-tune.md: Regenerate.

From-SVN: r221884

gcc/ChangeLog

 2015-04-06  Evandro Menezes  <e.menezes@samsung.com>
 
+	* doc/invoke.texi (AARCH64/mtune): Add exynos-m1 as an option.
+	* config/aarch64/aarch64-cores.def (exynos-m1): New core.
+	* config/aarch64/aarch64-tune.md: Regenerate.
+
+2015-04-06  Evandro Menezes  <e.menezes@samsung.com>
+
 	* doc/invoke.texi (ARM/mtune): Add "exynos-m1" as an option.
 	* config/arm/arm.c (arm_issue_rate): Specify "3" for "exynosm1".
 	* config/arm/arm-cores.def (exynos-m1): New core.

gcc/config/aarch64/aarch64-cores.def

@@ -37,6 +37,7 @@
 AARCH64_CORE("cortex-a53",  cortexa53, cortexa53, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa53)
 AARCH64_CORE("cortex-a57",  cortexa57, cortexa57, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa57)
 AARCH64_CORE("cortex-a72",  cortexa72, cortexa57, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa57)
+AARCH64_CORE("exynos-m1",   exynosm1,  cortexa57, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, cortexa57)
 AARCH64_CORE("thunderx",    thunderx,  thunderx, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx)
 AARCH64_CORE("xgene1",      xgene1,    xgene1,    8,  AARCH64_FL_FOR_ARCH8, xgene1)
 

gcc/config/aarch64/aarch64-tune.md

 ;; -*- buffer-read-only: t -*-
 ;; Generated automatically by gentune.sh from aarch64-cores.def
 (define_attr "tune"
-	"cortexa53,cortexa57,cortexa72,thunderx,xgene1,cortexa57cortexa53,cortexa72cortexa53"
+	"cortexa53,cortexa57,cortexa72,exynosm1,thunderx,xgene1,cortexa57cortexa53,cortexa72cortexa53"
 	(const (symbol_ref "((enum attr_tune) aarch64_tune)")))

gcc/doc/invoke.texi

@@ -12335,8 +12335,8 @@ architecture.
 @opindex mtune
 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-a53}, @samp{cortex-a57},
-@samp{cortex-a72}, @samp{thunderx}, @samp{xgene1}.
+@samp{generic}, @samp{cortex-a53}, @samp{cortex-a57}, @samp{cortex-a72},
+@samp{exynos-m1}, @samp{thunderx}, @samp{xgene1}.
 
 Additionally, this option can specify that GCC should tune the performance
 of the code for a big.LITTLE system.  Permissible values for this