[ARM] Error out of arm_neon.h if compiling for soft-float ABI

	* config/arm/arm_neon.h: Show error if using with soft-float ABI.

From-SVN: r234023

gcc/ChangeLog

+2016-03-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/arm/arm_neon.h: Show error if using with soft-float ABI.
+
 2016-03-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	PR target/62281

gcc/config/arm/arm_neon.h

@@ -27,6 +27,10 @@
 #ifndef _GCC_ARM_NEON_H
 #define _GCC_ARM_NEON_H 1
 
+#ifndef __ARM_FP
+#error "NEON intrinsics not available with the soft-float ABI.  Please use -mfloat-abi=softp or -mfloat-abi=hard"
+#else
+
 #pragma GCC push_options
 #pragma GCC target ("fpu=neon")
 
@@ -14833,3 +14837,4 @@ vmull_high_p64 (poly64x2_t __a, poly64x2_t __b)
 #pragma GCC pop_options
 
 #endif
+#endif