[AArch64] Add a new scheduling description for the ARM Cortex-A57 processor

gcc/

	* config/arm/cortex-a57.md: New.
	* config/aarch64/aarch64.md: Include it.
	* config/aarch64/aarch64-cores.def (cortex-a57): Tune for it.
	* config/aarch64/aarch64-tune.md: Regenerate.

From-SVN: r219724

gcc/ChangeLog

+2015-01-16  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* config/arm/cortex-a57.md: New.
+	* config/aarch64/aarch64.md: Include it.
+	* config/aarch64/aarch64-cores.def (cortex-a57): Tune for it.
+	* config/aarch64/aarch64-tune.md: Regenerate.
+
 2015-01-16  Zhenqiang Chen  <zhenqiang.chen@arm.com>
 
 	PR target/64015

gcc/config/aarch64/aarch64-cores.def

@@ -35,7 +35,7 @@
 /* V8 Architecture Processors.  */
 
 AARCH64_CORE("cortex-a53",  cortexa53, cortexa53, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa53)
-AARCH64_CORE("cortex-a57",  cortexa15, cortexa15, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa57)
+AARCH64_CORE("cortex-a57",  cortexa57, cortexa57, 8,  AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, 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,cortexa15,thunderx,xgene1,cortexa57cortexa53"
+	"cortexa53,cortexa57,thunderx,xgene1,cortexa57cortexa53"
 	(const (symbol_ref "((enum attr_tune) aarch64_tune)")))

gcc/config/aarch64/aarch64.md

@@ -188,7 +188,7 @@
 
 ;; Scheduling
 (include "../arm/cortex-a53.md")
-(include "../arm/cortex-a15.md")
+(include "../arm/cortex-a57.md")
 (include "thunderx.md")
 (include "../arm/xgene1.md")