[ARM] Add ACLE 2.0 predefined marco __ARM_FEATURE_IDIV

2014-10-22  Renlin Li <renlin.li@arm.com>

  gcc/
    * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define
    __ARM_FEATURE_IDIV__.

From-SVN: r216547

gcc/ChangeLog

+2014-10-22  Renlin Li <renlin.li@arm.com>
+
+	* config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define
+	__ARM_FEATURE_IDIV__.
+
 2014-10-22  Richard Biener  <rguenther@suse.de>
 
 	* Makefile.in (s-match): Adjust dependencies to only catch

gcc/config/arm/arm.h

@@ -164,7 +164,10 @@ extern char arm_arch_name[];
 	    builtin_define ("__ARM_EABI__");		\
 	  }						\
 	if (TARGET_IDIV)				\
-	  builtin_define ("__ARM_ARCH_EXT_IDIV__");	\
+         {						\
+            builtin_define ("__ARM_ARCH_EXT_IDIV__");	\
+            builtin_define ("__ARM_FEATURE_IDIV__");	\
+         }
     } while (0)
 
 #include "config/arm/arm-opts.h"