2014-09-15  Andrew Stubbs  <ams@codesourcery.com>

	* gcc/config/arm/arm.c (arm_option_override): Reject -mfpu=neon
	when architecture is older than ARMv7.

Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c	(revision 215228)
+++ gcc/config/arm/arm.c	(working copy)
@@ -2845,6 +2845,9 @@
 
   arm_fpu_desc = &all_fpus[arm_fpu_index];
 
+  if (TARGET_NEON && !arm_arch7)
+    error ("target CPU does not support NEON");
+
   switch (arm_fpu_desc->model)
     {
     case ARM_FP_MODEL_VFP: