re PR bootstrap/43287 (Bootstrap fails at stage 1 on powerpc-apple-darwin9)

	PR bootstrap/43287
	* config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
	UNSPEC_MACHOPIC_OFFSET.

From-SVN: r157334

gcc/ChangeLog

+2010-03-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/43287
+	* config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
+	UNSPEC_MACHOPIC_OFFSET.
+
 2010-03-09  Andreas Schwab  <schwab@linux-m68k.org>
 
 	PR target/43294

gcc/config/rs6000/rs6000.c

@@ -5298,6 +5298,16 @@ rs6000_delegitimize_address (rtx orig_x)
       return orig_x;
     }
 
+  if (TARGET_MACHO
+      && GET_CODE (orig_x) == LO_SUM
+      && GET_CODE (XEXP (x, 1)) == CONST)
+    {
+      y = XEXP (XEXP (x, 1), 0);
+      if (GET_CODE (y) == UNSPEC
+	  && XINT (y, 1) == UNSPEC_MACHOPIC_OFFSET)
+	return XVECEXP (y, 0, 0);
+    }
+
   return orig_x;
 }