rs6000.c (rs6000_handle_altivec_attribute): Propagate all type qualifiers from…

rs6000.c (rs6000_handle_altivec_attribute): Propagate all type qualifiers from element type to vector type.

ChangeLog:

	* config/rs6000/rs6000.c (rs6000_handle_altivec_attribute): Propagate
	all type qualifiers from element type to vector type.

testsuite/ChangeLog:

	* gcc.target/powerpc/altivec-volatile.c: New test.

Co-Authored-By: Andrew Pinski <andrew_pinski@playstation.sony.com>

From-SVN: r139569

gcc/ChangeLog

+2008-08-25  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
+	* config/rs6000/rs6000.c (rs6000_handle_altivec_attribute): Propagate
+	all type qualifiers from element type to vector type.
+
 2008-08-25  David Daney  <ddaney@avtrex.com>
 
 	* config/mips/mips.md (immediate_insn): Move up in file, fix

gcc/config/rs6000/rs6000.c

@@ -20294,8 +20294,10 @@ rs6000_handle_altivec_attribute (tree *node,
     default: break;
     }
 
-  if (result && result != type && TYPE_READONLY (type))
-    result = build_qualified_type (result, TYPE_QUAL_CONST);
+  /* Propagate qualifiers attached to the element type
+     onto the vector type.  */
+  if (result && result != type && TYPE_QUALS (type))
+    result = build_qualified_type (result, TYPE_QUALS (type));
 
   *no_add_attrs = true;  /* No need to hang on to the attribute.  */
 

gcc/testsuite/ChangeLog

+2008-08-25  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+	    Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	* gcc.target/powerpc/altivec-volatile.c: New test.
+
 2008-08-25  Daniel Kraft  <d@domob.eu>
 
 	* gfortran.dg/extends_7.f03: New test.