rs6000.h (CONSTANT_ALIGNMENT): Don't overalign strings when optimizing for size...

	* config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Don't overalign
	strings when optimizing for size, unless the target cares about
	alignment.

From-SVN: r132566

gcc/ChangeLog

+2008-02-22  Nathan Froyd  <froydnj@codesourcery.com>
+
+	* config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Don't overalign
+	strings when optimizing for size, unless the target cares about
+	alignment.
+
 2008-02-22  Tom Tromey  <tromey@redhat.com>
 
 	* regclass.c (current_pass): Remove declaration.

gcc/config/rs6000/rs6000.h

@@ -596,6 +596,7 @@ extern enum rs6000_nop_insertion rs6000_sched_insert_nops;
    Make vector constants quadword aligned.  */
 #define CONSTANT_ALIGNMENT(EXP, ALIGN)                           \
   (TREE_CODE (EXP) == STRING_CST	                         \
+   && (TARGET_STRICT_ALIGN || !optimize_size)                    \
    && (ALIGN) < BITS_PER_WORD                                    \
    ? BITS_PER_WORD                                               \
    : (ALIGN))