* genextract.c (main): Set ro_loc for peepholes.

From-SVN: r47308

gcc/ChangeLog

+2001-11-24  Hans-Peter Nilsson  <hp@axis.com>
+
+	* genextract.c (main): Set ro_loc for peepholes.
+
 Sat Nov 24 17:04:10 2001  Douglas B. Rupp  <rupp@gnat.com>
 
 	* fix-header.c (main): Move inf_buffer termination and inf_limit

gcc/genextract.c

@@ -434,9 +434,11 @@ from the machine description file `md'.  */\n\n");
 
       /* The vector in the insn says how many operands it has.
 	 And all it contains are operands.  In fact, the vector was
-	 created just for the sake of this function.  */
+	 created just for the sake of this function.  We need to set the
+	 location of the operands for sake of simplifications after
+	 extraction, like eliminating subregs.  */
       printf ("      for (i = XVECLEN (pat, 0) - 1; i >= 0; i--)\n");
-      printf ("          ro[i] = XVECEXP (pat, 0, i);\n");
+      printf ("          ro[i] = *(ro_loc[i] = &XVECEXP (pat, 0, i));\n");
       printf ("      break;\n\n");
     }