aarch64.h (AARCH64_ISA_LSE): New.

	* config/aarch64/aarch64.h (AARCH64_ISA_LSE): New.
	(TARGET_LSE): New.

From-SVN: r226857

gcc/ChangeLog

+2015-08-13  Matthew Wahab  <matthew.wahab@arm.com>
+
+	* config/aarch64/aarch64.h (AARCH64_ISA_LSE): New.
+	(TARGET_LSE): New.
+
 2015-08-13  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/67191

gcc/config/aarch64/aarch64.h

@@ -156,6 +156,7 @@ extern unsigned aarch64_architecture_version;
 #define AARCH64_ISA_CRYPTO         (aarch64_isa_flags & AARCH64_FL_CRYPTO)
 #define AARCH64_ISA_FP             (aarch64_isa_flags & AARCH64_FL_FP)
 #define AARCH64_ISA_SIMD           (aarch64_isa_flags & AARCH64_FL_SIMD)
+#define AARCH64_ISA_LSE		   (aarch64_isa_flags & AARCH64_FL_LSE)
 
 /* Crypto is an optional extension to AdvSIMD.  */
 #define TARGET_CRYPTO (TARGET_SIMD && AARCH64_ISA_CRYPTO)
@@ -163,6 +164,9 @@ extern unsigned aarch64_architecture_version;
 /* CRC instructions that can be enabled through +crc arch extension.  */
 #define TARGET_CRC32 (AARCH64_ISA_CRC)
 
+/* Atomic instructions that can be enabled through the +lse extension.  */
+#define TARGET_LSE (AARCH64_ISA_LSE)
+
 /* Make sure this is always defined so we don't have to check for ifdefs
    but rather use normal ifs.  */
 #ifndef TARGET_FIX_ERR_A53_835769_DEFAULT