* arm.c (arm_return_in_memory): Add handling for vector return types.

From-SVN: r99666

gcc/ChangeLog

+2005-05-13  Josh Conner  <jconner@apple.com>
+
+	* arm.c (arm_return_in_memory): Add handling for vector return types.
+
 2005-05-13  David Ung  <davidu@mips.com>
 
 	* config/mips/mips.h (processor_type): Add new PROCESSOR_4KP

gcc/config/arm/arm.c

@@ -2467,6 +2467,7 @@ arm_return_in_memory (tree type)
   HOST_WIDE_INT size;
 
   if (!AGGREGATE_TYPE_P (type) &&
+      (TREE_CODE (type) != VECTOR_TYPE) &&
       !(TARGET_AAPCS_BASED && TREE_CODE (type) == COMPLEX_TYPE))
     /* All simple types are returned in registers.
        For AAPCS, complex types are treated the same as aggregates.  */
@@ -2481,6 +2482,11 @@ arm_return_in_memory (tree type)
       return (size < 0 || size > UNITS_PER_WORD);
     }
 
+  /* To maximize backwards compatibility with previous versions of gcc,
+     return vectors up to 4 words in registers.  */
+  if (TREE_CODE (type) == VECTOR_TYPE)
+    return (size < 0 || size > (4 * UNITS_PER_WORD));
+
   /* For the arm-wince targets we choose to be compatible with Microsoft's
      ARM and Thumb compilers, which always return aggregates in memory.  */
 #ifndef ARM_WINCE