[Patch AArch64 1/3] Enable CRC by default for armv8.1-a

gcc/

	* config/aarch64/aarch64.h (AARCH64_FL_FOR_ARCH8_1): Also add
	AARCH64_FL_CRC.

From-SVN: r234875

gcc/ChangeLog

+2016-04-11  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* config/aarch64/aarch64.h (AARCH64_FL_FOR_ARCH8_1): Also add
+	AARCH64_FL_CRC.
+
 2016-04-09  Tom de Vries  <tom@codesourcery.com>
 
 	PR tree-optimization/68953

gcc/config/aarch64/aarch64.h

@@ -145,7 +145,7 @@ extern unsigned aarch64_architecture_version;
 /* Architecture flags that effect instruction selection.  */
 #define AARCH64_FL_FOR_ARCH8       (AARCH64_FL_FPSIMD)
 #define AARCH64_FL_FOR_ARCH8_1			       \
-  (AARCH64_FL_FOR_ARCH8 | AARCH64_FL_LSE | AARCH64_FL_V8_1)
+  (AARCH64_FL_FOR_ARCH8 | AARCH64_FL_LSE | AARCH64_FL_CRC | AARCH64_FL_V8_1)
 
 /* Macros to test ISA flags.  */