re PR target/23539 (C & C++ compiler generating misaligned references regardless of compiler flags)

        PR target/23539
        * config/rs6000/rs6000.c (expand_block_clear): Use HImode when
        bytes >= 2 not bytes == 2.
        (expand_block_move): Same.

From-SVN: r103564

gcc/ChangeLog

+2005-08-27  David Edelsohn  <edelsohn@gnu.org>
+
+	PR target/23539
+        * config/rs6000/rs6000.c (expand_block_clear): Use HImode when
+        bytes >= 2 not bytes == 2.
+	(expand_block_move): Same.
+
 2005-08-27  Richard Guenther  <rguenther@suse.de>
 
 	PR target/23575

gcc/config/rs6000/rs6000.c

@@ -9133,7 +9133,7 @@ expand_block_clear (rtx operands[])
 	  clear_bytes = 4;
 	  mode = SImode;
 	}
-      else if (bytes == 2 && (align >= 16 || !STRICT_ALIGNMENT))
+      else if (bytes >= 2 && (align >= 16 || !STRICT_ALIGNMENT))
 	{			/* move 2 bytes */
 	  clear_bytes = 2;
 	  mode = HImode;
@@ -9269,7 +9269,7 @@ expand_block_move (rtx operands[])
 	  mode = SImode;
 	  gen_func.mov = gen_movsi;
 	}
-      else if (bytes == 2 && (align >= 16 || !STRICT_ALIGNMENT))
+      else if (bytes >= 2 && (align >= 16 || !STRICT_ALIGNMENT))
 	{			/* move 2 bytes */
 	  move_bytes = 2;
 	  mode = HImode;